Journal articles on the topic 'Qinghai-Tibet Plateau'
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1
Wang, Zhiheng, Hongkui Fan, Daikun Wang, Tao Xing, Dongchuan Wang, Qiaozhen Guo, and Lina Xiu. "Spatial Pattern of Highway Transport Dominance in Qinghai–Tibet Plateau at the County Scale." ISPRS International Journal of Geo-Information 10, no. 5 (May 5, 2021): 304. http://dx.doi.org/10.3390/ijgi10050304.
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The highway is an important mode of transportation in the Qinghai–Tibet Plateau, and can be regarded as a major contributor to the high-quality and sustainable development of the Qinghai–Tibet Plateau. It is of great significance to explore its spatial distribution and characteristics for understanding the regional and geographical process. Although Qinghai–Tibet Plateau’s highway transportation infrastructure has been experiencing rapid development in recent years, there lacks a systematic examination of the whole Qinghai–Tibet Plateau from the perspective of supportive capacity for its socio-economic activities. This paper applies geospatial analysis methods, such as network analysis, spatial statistics, and weighted overlay, to model the highway transport dominance in the Qinghai–Tibet Plateau in 2015 at the county scale and reveals the basic characteristics of the highway transport dominance’s spatial pattern. The results are mainly of four aspects: 1) there is a significant difference between the east and west of the highway in the Qinghai–Tibet Plateau, showing an irregular circle structure of gradual attenuation from the east to west; 2) at the county scale, the highway transport dominance in the Qinghai–Tibet Plateau shows strong spatial autocorrelation and a certain extent of spatial heterogeneity, presenting a spatial distribution pattern of High–High and Low–Low clustering; 3) the urban locations of Lhasa, Xining and other center cities have obvious spatial constraints on the distribution of highway transport dominance and generally have a logarithmic decline trend; and 4) there are obvious differences in distribution among the three Urban Agglomerations in the Qinghai–Tibet Plateau. Due to the influence of traffic location, topography, construction of national trunk lines, and level of socio-economic development., the traffic conditions of Lan-Xi Urban Agglomeration and Lhasa Urban Agglomeration are better than Kashgar Urban Agglomeration. This study can be used to guide the optimization of the highway network structure and provide a macro decision-making reference for the planning and evaluation of major highway projects in the Qinghai–Tibet Plateau.
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Xiao, Qiyun. "Sustainable Development Strategies for Ecotourism in Qinghai-Tibet Plateau Based on SWOT Analysis." British Journal of Environmental Studies 2, no. 2 (September 17, 2022): 08–12. http://dx.doi.org/10.32996/bjes.2022.2.2.2.
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This paper discusses the strengths, weaknesses, opportunities, and threats of sustainable development of ecotourism in the Qinghai-Tibet Plateau based on the SWOT analysis and provides corresponding strategies for the future sustainable development model. The sustainable development of ecotourism in the Qinghai-Tibet Plateau has both natural and cultural strengths. The unique natural and cultural landscape provide the foundation for it, and international and domestic policies, financial support, and professional theories ensure its development. It is supported by a feasibility study and conforms to the times. To spur the sustainable development of ecotourism and establish the status of Qinghai-Tibet Plateau in ecotourism, we must 1) make rational use of ESG and green finance and adhere to the development route suitable for the local conditions; 2) pay attention to the feasibility of ecological service-based economy in Qinghai-Tibet Plateau and rationally apply it to the development of Qinghai-Tibet Plateau; 3) improve the service level of the tourism industry in Qinghai-Tibet Plateau, strengthen industry regulation and training, and improve tourists' experience in tourist destinations. To promote the development of ecotourism in the Qinghai-Tibet Plateau, we must attach equal emphasis on the protection of the ecological environment and biodiversity and neglect neither economic development nor ecological protection in an attempt to create a better future for the Qinghai-Tibet region.
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Duan, Hanchen, Xian Xue, Tao Wang, Wenping Kang, Jie Liao, and Shulin Liu. "Spatial and Temporal Differences in Alpine Meadow, Alpine Steppe and All Vegetation of the Qinghai-Tibetan Plateau and Their Responses to Climate Change." Remote Sensing 13, no. 4 (February 12, 2021): 669. http://dx.doi.org/10.3390/rs13040669.
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Alpine meadow and alpine steppe are the two most widely distributed nonzonal vegetation types in the Qinghai-Tibet Plateau. In the context of global climate change, the differences in spatial-temporal variation trends and their responses to climate change are discussed. It is of great significance to reveal the response of the Qinghai-Tibet Plateau to global climate change and the construction of ecological security barriers. This study takes alpine meadow, alpine steppe and the overall vegetation of the Qinghai-Tibet Plateau as the research objects. The normalized difference vegetation index (NDVI) data and meteorological data were used as the data sources between 2000 and 2018. By using the mean value method, threshold method, trend analysis method and correlation analysis method, the spatial and temporal variation trends in the alpine meadow, alpine steppe and the overall vegetation of the Qinghai-Tibet Plateau were compared and analyzed, and their differences in the responses to climate change were discussed. The results showed the following: (1) The growing season length of alpine meadow was 145~289 d, while that of alpine steppe and the overall vegetation of the Qinghai-Tibet Plateau was 161~273 d, and their growing season lengths were significantly shorter than that of alpine meadow. (2) The annual variation trends of the growing season NDVI for the alpine meadow, alpine steppe and the overall vegetation of the Qinghai-Tibet Plateau increased obviously, but their fluctuation range and change rate were significantly different. (3) The overall vegetation improvement in the Qinghai-Tibet Plateau was primarily dominated by alpine steppe and alpine meadow, while the degradation was primarily dominated by alpine meadow. (4) The responses between the growing season NDVI and climatic factors in the alpine meadow, alpine steppe and the overall vegetation of the Qinghai-Tibet Plateau had great spatial heterogeneity in the Qinghai-Tibet Plateau. These findings provide evidence towards understanding the characteristics of the different vegetation types in the Qinghai-Tibet Plateau and their spatial differences in response to climate change.
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Ge, Liyan, Zhiqiang Feng, Haibo Yao, and Siwei Liu. "Thoughts on Green Highway Construction in Qinghai-Tibet Plateau." E3S Web of Conferences 233 (2021): 01122. http://dx.doi.org/10.1051/e3sconf/202123301122.
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On the basis of combining the unique characteristics of the natural environment and the fragile and sensitive ecological environment in the high-cold and high-altitude areas, the difficulties and challenges in the construction of green roads in the Qinghai-Tibet Plateau are analyzed, and the construction of green roads in the Qinghai-Tibet Plateau should have its own unique characteristics. Relevant technologies and eco-environmental protection measures for green road construction in high-cold and high-altitude areas, and specific suggestions for green road construction on the Qinghai-Tibet Plateau, aim to provide certain ideas for the construction of green roads on the Qinghai-Tibet Plateau for reference.
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Xiao, Qiying. "Approaches to the Development of Ecotourism on the Qinghai-Tibet Plateau: The Aim Being Sustainable Growth." Journal of Humanities and Social Sciences Studies 4, no. 4 (September 18, 2022): 25–29. http://dx.doi.org/10.32996/jhsss.2022.4.4.5.
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The study features the necessity and feasibility of developing ecotourism on the Qinghai-Tibet Plateau and approaches to the region's sustainable growth. The biodiversity, rich natural resources, and distinctive cultural and religious assets that the Qinghai-Tibet Plateau boasts have made tourism greatly beneficial to the local economy, but the growth of tourism in the region has also caused damage to the local environment. The study hence provides solutions to the issue, putting forward plans for the sustainable growth of the Qinghai-Tibet Plateau.
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Wang, Dongchuan, Kangjian Wang, Zhiheng Wang, Hongkui Fan, Hua Chai, Hongyi Wang, Hui Long, Jianshe Gao, and Jiacheng Xu. "Spatial-Temporal Evolution and Influencing Mechanism of Traffic Dominance in Qinghai-Tibet Plateau." Sustainability 14, no. 17 (September 4, 2022): 11031. http://dx.doi.org/10.3390/su141711031.
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Transportation is an important resource for the sustainable development of the Qinghai-Tibet Plateau. It is of great practical significance to evaluate and study the law and mechanism of spatial and temporal differentiation of traffic dominance degree. Based on the methods of the Origin-Destination cost matrix, least squares method, and geographically weighted regression, this paper establishes a traffic dominance evaluation system at the county scale and discusses the spatial pattern and influence of traffic dominance in the Qinghai-Tibet Plateau from 2015 to 2019. The results show that: (1) The overall traffic construction of the Qinghai-Tibet Plateau has been accelerated, and the traffic accessibility between counties has been significantly enhanced; (2) The traffic dominance of the Qinghai-Tibet Plateau is significantly different from east to west, and the central area, with “Xining-Lhasa” as the axis, expands to the outer circle with an irregularly decreasing spatial pattern; and (3) The effect of rapid urbanization development and population carrying capacity enhancement on the traffic dominance of the Qinghai-Tibet Plateau has gradually increased, and the effect of elevation has been weakening from 2015 to 2019.
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Qi, Yinglian, Xiaoyan Pu, Yaxiong Li, Dingai Li, Mingrui Huang, Xuan Zheng, Jiaxin Guo, and Zhi Chen. "Prediction of Suitable Distribution Area of Plateau pika (Ochotona curzoniae) in the Qinghai–Tibet Plateau under Shared Socioeconomic Pathways (SSPs)." Sustainability 14, no. 19 (September 25, 2022): 12114. http://dx.doi.org/10.3390/su141912114.
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The Qinghai–Tibet Plateau is one of the regions most strongly affected by climate change. The climate feedback of the distribution of plateau pika, a key species, is closely related to the trophic structure of the plateau ecosystem and the development of agriculture and animal husbandry on the plateau. In order to understand the impact of future climate change on the suitable distribution area of plateau pika, potential suitable distribution areas of Plateau pika were predicted using the MaxEnt model under three climate scenarios (SSP 1-2.6, SSP 2-4.5, and SSP 5-8.5) in the near term (2021–2040) and medium term (2041–2060). The predictions were found to be highly accurate with AUC values of 0.997 and 0.996 for the training and test sets. The main results are as follows: (1) The precipitation of the wettest month (BIO 16), mean diurnal range (BIO 2), slope, elevation, temperature seasonality (BIO 4), and annual mean temperature (BIO 1) were the main influencing factors. (2) In the historical period, the total suitable distribution area of Plateau pika in the Qinghai–Tibet Plateau accounted for 29.90% of the total area at approximately 74.74 × 104 km2, concentrated in the eastern and central areas of the Qinghai–Tibet Plateau. (3) The total suitable distribution area of pika exhibited an expansion trend under SSP 1-2.6 and SSP 2-4.5 in the near term (2021–2040), and the expansion area was concentrated in the eastern and central parts of the Qinghai–Tibet Plateau. The expansion area was the largest in Qinghai Province, followed by Sichuan Province and Tibet. In contrast, the suitable distribution area shrank in the Altun Mountains, Xinjiang. Under SSP 5-8.5 in the near term and all scenarios in the medium term (2041–2060), the suitable distribution area of Plateau pika decreased to different degrees. The shrinkage area was concentrated at the margin of the Qaidam Basin, central Tibet, and the Qilian Mountains in the east of Qinghai Province. (4) Plateau pika migrated toward the east or southeast on the Qinghai–Tibet Plateau under the three climate scenarios. Under most of the scenarios, the migration distance was longer in the medium term than in the near term.
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SONG, Jianlan. "Denisovan from Qinghai-Tibet Plateau." Bulletin of the Chinese Academy of Sciences 34, no. 1 (January 1, 2020): 14–15. http://dx.doi.org/10.3724/sp.j.7101866520.
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Zhou, Huakun, Xiaoyuan Yang, Chenyu Zhou, Xinqing Shao, Zhengchen Shi, Honglin Li, Hongye Su, et al. "Alpine Grassland Degradation and Its Restoration in the Qinghai–Tibet Plateau." Grasses 2, no. 1 (March 3, 2023): 31–46. http://dx.doi.org/10.3390/grasses2010004.
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The alpine grasslands of the Qinghai–Tibet Plateau are one of the most famous grazing ecosystems in the world, providing a variety of ecosystem functions and services. The rate of grassland degradation has been slowed by the implementation of national grassland restoration projects, but the degradation of grasslands on the Qinghai–Tibet Plateau has not yet been fundamentally reversed, and some grasslands are still degraded to varying degrees. The main causes of grassland degradation on the Qinghai–Tibet Plateau are both human and natural factors. Human factors include overgrazing, over-cultivation, indiscriminate digging and mining, mineral resource development, infrastructure construction and use, and tourism development. Natural factors include climate change, wildlife destruction, pests, etc. Based on the principles of restoration ecology, a number of effective practices and integrated management responses for restoring degraded grasslands have been developed on the Qinghai–Tibet Plateau. The degraded grassland restoration practices include fencing, fertilization, sown grassland establishment, rodent control, and grazing management. Based on these practices, the comprehensive restoration of degraded grasslands and the establishment and sustainable management of sown grasslands in the alpine grasslands of the Qinghai–Tibet Plateau should be further strengthened, and research on the mechanisms of grassland degradation and restoration should be further developed.
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Zou, Yifan, Peng Sun, Zice Ma, Yinfeng Lv, and Qiang Zhang. "Snow Cover in the Three Stable Snow Cover Areas of China and Spatio-Temporal Patterns of the Future." Remote Sensing 14, no. 13 (June 27, 2022): 3098. http://dx.doi.org/10.3390/rs14133098.
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In the context of global warming, relevant studies have shown that China will experience the largest temperature rise in the Qinghai–Tibet Plateau and northwestern regions in the future. Based on MOD10A2 and MYD10A2 snow products and snow depth data, this study analyzes the temporal and spatial evolution characteristics of the snow cover fraction, snow depth, and snow cover days in the three stable snow cover areas in China, and combines 15 modes in CMIP6 snow cover data in four different scenarios with three kinds of variables, predicting the spatiotemporal evolution pattern of snow cover in China’s three stable snow cover areas in the future. The results show that (1) the mean snow cover fraction, snow depth, and snow cover days in the snow cover area of Northern Xinjiang are all the highest. Seasonal changes in the snow cover areas of the Qinghai–Tibet Plateau are the most stable. The snow cover fraction, snow depth, and snow cover days of the three stable snow cover areas are consistent in spatial distribution. The high values are mainly distributed in the southeast and west of the Qinghai–Tibet Plateau, the south and northeast of Northern Xinjiang, and the north of the snow cover area of Northeast China. (2) The future snow changes in the three stable snow cover areas will continue to decline with the increase in development imbalance. Snow cover fraction and snow depth decrease most significantly in the Qinghai–Tibet Plateau and the snow cover days in Northern Xinjiang decrease most significantly under the SSPs585 scenario. In the future, the southeast of the Qinghai–Tibet Plateau, the northwest of Northern Xinjiang, and the north of Northeast China will be the center of snow cover reduction. (3) Under the four different scenarios, the snow cover changes in the Qinghai–Tibet Plateau and Northern Xinjiang are the most significant. Under the SSPs126 and SSPs245 scenarios, the Qinghai–Tibet Plateau snow cover has the most significant change in response. Under the SSPs370 and SSPs585 scenarios, the snow cover in Northern Xinjiang has the most significant change.
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Fan, Weiguo, Mengmeng Meng, Jianchang Lu, Xiaobin Dong, Hejie Wei, Xuechao Wang, and Qing Zhang. "Decoupling Elasticity and Driving Factors of Energy Consumption and Economic Development in the Qinghai-Tibet Plateau." Sustainability 12, no. 4 (February 12, 2020): 1326. http://dx.doi.org/10.3390/su12041326.
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Decoupling of energy consumption and economic development is a key factor in achieving sustainable regional development. The decoupling relationship between energy consumption and economic development in the Qinghai-Tibet Plateau region is still unclear. This paper uses the logarithmic mean Divisia index (LMDI) decomposition method and Tapio elastic index model to analyze the decoupling degree and driving factors of energy consumption and economic development, and evaluates the decoupling effort level in Qinghai-Tibet Plateau from 2006 to 2016. The results indicate that the Qinghai-Tibet Plateau region showed a weak decoupling as a whole, and that only Tibet experienced expanding negative decoupling in 2006–2007 and an expansion link in 2007–2008. Economic scale is a primary factor that hinders the decoupling of energy consumption, followed by investment intensity and industrial energy structure. The cumulative promotion effect of research and development (R&D) efficiency and intensity and the inhibition effect of investment intensity cancel each other out. With the exception of Tibet and Xinjiang, all provinces in the Qinghai-Tibet plateau have made decoupling efforts. Decoupling efforts made by R&D efficiency contributed the most, followed by energy intensity and R&D intensity. This paper provides policy recommendations for the decoupling of energy consumption experience for underdeveloped regions.
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He, Sui. "Sustainable Development Strategy of Ecotourism Marketing Based on New Media: A Case Study of Qinghai Tibet Plateau in China." Journal of Humanities and Social Sciences Studies 5, no. 1 (January 10, 2023): 42–46. http://dx.doi.org/10.32996/jhsss.2023.5.1.6.
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At present, improving the ecological environment and green development has become the new concept and new normal of society. Ecotourism is a new tourism form and tourism development mode, which can not only meet the diversified needs of tourists for ecology, culture and tourism but also drive the development of the regional economy. The Qinghai Tibet Plateau is an important ecological barrier to the country, and its ecological strategic position is extremely important. Exploring how to promote regional economic development while protecting the ecological environment and reducing the negative impact of tourism activities is the key to the sustainable development of eco-tourism marketing in the Qinghai Tibet Plateau. Taking the Qinghai Tibet plateau region, which is rich in tourism resources and has a fragile ecological environment, as an example, based on the characteristic ecotourism resources of the Qinghai Tibet plateau region, this paper summarizes the existing problems and their causes and on this basis, discusses the implementation of active ecotourism marketing and sustainable development strategies in this region, with a view to exploring eco-friendly, green and low-carbon. The high-quality development road with plateau characteristics provides reference and reference.
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Chai, Ziang, Yuxiao Ren, and Yuwei Cao. "Modernization Measures for Sustainable Development of Alpine Grassland Husbandry on the Qinghai-Tibet Plateau: An Example of Countermeasures to Pasture Degradation." Journal of Environmental and Agricultural Studies 3, no. 3 (December 19, 2022): 72–77. http://dx.doi.org/10.32996/jeas.2022.3.3.9.
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The Qinghai-Tibet Plateau, also known as the "third pole of the world", consists of widespread alpine grasslands, and the local community has taken advantage of this natural condition to develop alpine grassland livestock farming. In recent years, climate change and irrational human activities have led to serious degradation of the alpine grasslands on the Qinghai-Tibet Plateau, which has constrained the development of traditional grassland husbandry. In order to promote the ecological protection of the plateau and improve the livelihood of the people in this region, the traditional grassland livestock industry needs to be transformed and upgraded. The Qinghai-Tibet Plateau should study and reasonably learn from efficient modern pastoralism and development measures such as grass farming and migrant urbanization in the USA, Australia, and Northern Europe. Due to the special peculiarities of the natural environment and the limitations of the local socio-economic conditions, this essay combines the local natural and humanistic environment of the Qinghai-Tibet Plateau region and proposes modern measures such as grass-based storage, grazing in specific areas, and ecological migration to realize the sustainable development of alpine grassland animal husbandry, which is conducive to promote regional high quality development.
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Tan, Qu Lin, and Chou Xie. "Comparison and Analysis of Permafrost Railway Subgrade Settlement Deformation Monitoring." Applied Mechanics and Materials 226-228 (November 2012): 1651–54. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.1651.
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Under inclement Qinghai-Tibet plateau environment, monitoring and analysis of railway subgrade deformation in plateau permafrost region has very important engineering significance for stability evaluation and safety management. In the paper, satellite interferometry was applied to measure subgrade deformation in the Beiluhe test site along the Qinghai-Tibet railway with gathered satellite interferometric SAR images. Based on the satellite-interferometry-derived data, the deformation characteristics of six points in different permafrost subgrades (the sliced rock embankment, the crushed rock embankment and railway bridge) along the Qinghai-Tibet railway were analyzed and compared. The analysis results show that settlement is the main behavior of railway subgrade deformation and the deformation amount of railway bridge is less than the sliced or the crushed rock embankment along the Qinghai-Tibet railway in permafrost regions.
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Chen, Shiyong, Xinquan Zhang, Xiao Ma, and Linkai Huang. "Assessment of genetic diversity and differentiation of Elymus nutans indigenous to Qinghai–Tibet Plateau using simple sequence repeats markers." Canadian Journal of Plant Science 93, no. 6 (November 2013): 1089–96. http://dx.doi.org/10.4141/cjps2013-062.
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Chen, S., Zhang, X., Ma, X. and Huang, L. 2013. Assessment of genetic diversity and differentiation of Elymus nutans indigenous to Qinghai–Tibet Plateau using simple sequence repeats markers. Can. J. Plant Sci. 93: 1089–1096. Elymus nutans Griseb., an important alpine forage grass, is widely distributed in the Qinghai–Tibet Plateau. A total of 50 E. nutans accessions from the eastern Qinghai–Tibet Plateau were analyzed using simple sequence repeats (SSR) markers from wheat and Elymus species. Our results show that a total of 144 reliable bands were generated, of which 132 (91.38%) were found to be polymorphic. Nei-Li's genetic similarity coefficients ranged from 0.515 to 0.870 with an average of 0.719, which shows a high level of genetic diversity and a broad genetic base among accessions. There was a low correlation between genetic distance and geographical distance (r=0.121, P=0.088) in the region, which is consistent with the unweighted pair group method with arithmetic average cluster analysis of accessions. The mountain ridges and river valleys in the eastern Qinghai–Tibet region could serve as genetic barriers for pollinator movement and seed dispersal. The rule of the most genetic diversity at medium altitude of E. nutans in the Qinghai–Tibet Plateau was also validated in the study. The implications of these results for the conservation of E. nutans are discussed.
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Deng, Xiaoyu, Liangxu Wu, Chengjin He, and Huaiyong Shao. "Study on Spatiotemporal Variation Pattern of Vegetation Coverage on Qinghai–Tibet Plateau and the Analysis of Its Climate Driving Factors." International Journal of Environmental Research and Public Health 19, no. 14 (July 21, 2022): 8836. http://dx.doi.org/10.3390/ijerph19148836.
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As one of the most sensitive areas to global environmental change, especially global climate change, the Qinghai–Tibet Plateau is an ideal area for studying global climate change and ecosystems. There are few studies on the analysis of the vegetation’s driving factors on the Qinghai–Tibet Plateau based on large-scale and high-resolution data due to the incompetence of satellite sensors. In order to study the long-term vegetation spatiotemporal pattern and its driving factors, this study used the enhanced spatial and temporal adaptive reflectance fusion model (ESTARFM) to improve the spatial resolution of the GIMMS NDVI3g (8 km) data of the Qinghai–Tibet Plateau in 1990 and 1995 based on the MODIS NDVI (500 m) data. The research on the spatiotemporal pattern and driving factors of vegetation on the Qinghai–Tibet Plateau from 1990 to 2015 was carried out afterward, with combined data including topographic factors, annual average temperature, and annual precipitation. The results showed that there was a strong correlation between the actual MODIS NDVI image and the fused GIMMS NDVI3g image, which means that the accuracy of the fused GIMMS NDVI3g image is reliable and can provide basic data for the accurate evaluation of the spatial and temporal patterns of vegetation on the Qinghai–Tibet Plateau. From 1990 to 2015, the overall vegetation coverage of the Qinghai–Tibet Plateau showed a degrading trend at a rate of −0.41%, and the degradation trend of vegetation coverage was the weakest when the slope was ≥25°. Due to the influence of the policy of returning farmland to forests, the overall degradation trend has gradually weakened. The significant changes in vegetation in 2010 can be attributed to the difference in the spatial distribution of climatic factors such as temperature and precipitation. The area with reduced vegetation in the west was larger than the area with increased vegetation in the east. The effects of temperature and precipitation on the distribution, direction, and degradation level of vegetation coverage were varied by the areal differentiation in different zones.
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Z J, Gou, and Liu F G. "Dongcaoalong Lake, Qinghai-Tibet Plateau, China." Journal of Global Change Data & Discovery 2, no. 4 (2018): 452–53. http://dx.doi.org/10.3974/geodp.2018.04.14.
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Z J, Gou, and Liu F G. "Gyaring Lake, Qinghai-Tibet Plateau, China." Journal of Global Change Data & Discovery 3, no. 1 (2019): 89–90. http://dx.doi.org/10.3974/geodp.2019.01.13.
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Z J, Gou, and Liu F G. "Ngoring Lake, Qinghai-Tibet Plateau, China." Journal of Global Change Data & Discovery 3, no. 1 (2019): 91–92. http://dx.doi.org/10.3974/geodp.2019.01.14.
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Q Q, Chen, Gou Z J, and Liu F G. "Haidingnuoer Lake, Qinghai-Tibet Plateau, China." Journal of Global Change Data & Discovery 3, no. 1 (2019): 93–94. http://dx.doi.org/10.3974/geodp.2019.01.15.
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Braitenberg, C., M. Zadro, J. Fang, Y. Wang, and H. T. Hsu. "Gravity inversion in Qinghai-Tibet Plateau." Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy 25, no. 4 (January 2000): 381–86. http://dx.doi.org/10.1016/s1464-1895(00)00060-0.
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HAO, GUOQIAN, IHSAN A. AL-SHEHBAZ, QIANLONG LIANG, QIAN WANG, and JIANQUAN LIU. "Eutrema tianshanense (Brassicaceae), a new species from Tian Shan Mountains of central Asia." Phytotaxa 286, no. 1 (November 25, 2016): 23. http://dx.doi.org/10.11646/phytotaxa.286.1.3.
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Eutrema tianshanense, a new species of Brassicaceae growing near to the permanent glaciation area in the Tian Shan Mountains of central Asia, is described. It is quite similar morphologically to E. heterophyllum, and E. racemosum from the Qinghai-Tibet Plateau and adjacent regions, and to E. edwardsii of Qinghai-Tibet Plateau, Central and North Asia, and northern North America, but with rounder and smaller leaves. In addition to its long-distance disjunction from the ranges of the above three species, phylogenetic analyses based on sequence variations of multiple chloroplast DNA markers and nuclear ITS suggested that E. tianshanense and these species represent two independently evolved lineages in Tian Shan Mountains and the Qinghai-Tibet Plateau. Their morphological similarities may have resulted from the same selection pressures in the alpine habitats where they grow.
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Xu, Jun, and Lei Hu. "Geospatial Semantics Analysis of the Qinghai–Tibetan Plateau Based on Microblog Short Texts." ISPRS International Journal of Geo-Information 10, no. 10 (October 10, 2021): 682. http://dx.doi.org/10.3390/ijgi10100682.
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Place descriptions record qualitative information related to places and their spatial relationships; thus, the geospatial semantics of a place can be extracted from place descriptions. In this study, geotagged microblog short texts recorded in 2017 from the Tibetan Autonomous Region and Qinghai Province were used to extract the place semantics of the Qinghai–Tibetan Plateau (QTP). ERNIE, a language representation model enhanced by knowledge, was employed to extract thematic topics from the microblog short texts, which were then geolocated and used to analyze the place semantics of the QTP. Considering the large number of microblogs published by tourists in both Qinghai and Tibet, we separated the texts into four datasets according to the user, i.e., local users in Tibet, tourists in Tibet, local users in Qinghai, and tourists in Qinghai, to explore the place semantics of the QTP from different perspectives. The results revealed clear spatial variability in the thematic topics. Tibet is characterized by travel- and scenery-related language, whereas Qinghai is characterized by emotion, work, and beauty salon-related language. The human cognition of place semantics differs between local residents and tourists, and with a greater difference between the two in Tibet than in Qinghai. Weibo texts also indicate that local residents and tourists are concerned with different aspects of the same thematic topics. The cities on the QTP can be classified into three groups according to their geospatial semantic components, i.e., tourism-focused, life-focused, and religion-focused cities.
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Wang, Zhiheng, Tao Xing, Daikun Wang, Hongkui Fan, Dongchuan Wang, Yanwang Wu, Qiaozhen Guo, and Lina Xiu. "Two for the Road: Measuring Regional Disparity and Agglomeration in Human Development Level and Transportation Infrastructure." Journal of Advanced Transportation 2022 (August 30, 2022): 1–17. http://dx.doi.org/10.1155/2022/9975318.
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As the core element of social-economic development in the Qinghai-Tibet Plateau, transportation dramatically shapes the scale, type, and intensity of human activities. First, this study utilizes night light data and kilometer-grid population data to construct night light development index (NLDI) and to evaluate the human development level at the county scale. Then, based on the complex transportation infrastructure data, the weight assignment method is adopted to create transportation infrastructure influence degree (TIID), which is used to evaluate the location conditions of the counties. Finally, bivariate spatial autocorrelation is utilized to analyze the effect of regional conditions on the county-level human development variation. The results show that (1) NLDI is verified to assess differences in the level of human development among counties in Qinghai-Tibet Plateau and to overcome the difficulties of systematically and integrally obtaining socio-economic statistical data. The pattern of human development level in Qinghai-Tibet Plateau presents a “core-periphery” spatial structure with the transportation network as the axis. (2) On the whole, with the improvement of location conditions influenced by transportation infrastructure, the spatial aggregation of human development level is constantly improving, and the spatial disparity continues to decrease. (3) Locally, four spatial interaction patterns of high/low clustering are recognized and analyzed. It reflects the complexity and spatial heterogeneity between transport infrastructure construction and human development level in the Qinghai-Tibet Plateau.
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Zhang, Xian, Jieyi Wang, Jiang Zhang, Huai Chen, Changhui Peng, and Qiuan Zhu. "Temporal and Spatial Variation of Wetland CH4 Emissions from the Qinghai–Tibet Plateau under Future Climate Change Scenarios." Atmosphere 13, no. 6 (May 24, 2022): 854. http://dx.doi.org/10.3390/atmos13060854.
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Wetlands are an important natural source of methane (CH4), so it is important to quantify how their emissions may vary under future climate change conditions. The Qinghai–Tibet Plateau contains more than a third of China’s wetlands. Here, we simulated temporal and spatial variation in CH4 emissions from natural wetlands on the Qinghai–Tibet Plateau from 2008 to 2100 under Representative Concentration Pathways (RCP) 2.6, 4.5, and 8.5. Based on the simulation results of the TRIPLEX-GHG model forced with data from 24 CMIP5 models of global climate, we predict that, assuming no change in wetland distribution on the Plateau, CH4 emissions from natural wetlands will increase by 35%, 98% and 267%, respectively, under RCP 2.6, 4.5 and 8.5. The predicted increase in atmospheric CO2 concentration will contribute 10–28% to the increased CH4 emissions from wetlands on the Plateau by 2100. Emissions are predicted to be majorly in the range of 0 to 30.5 g C m−2·a−1 across the Plateau and higher from wetlands in the southern region of the Plateau than from wetlands in central or northern regions. Under RCP8.5, the methane emissions of natural wetlands on the Qinghai–Tibet Plateau increased much more significantly than that under RCP2.6 and RCP4.5.
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Wei, Wei, Wenlong Li, Yu Song, Jing Xu, Wenying Wang, and Chenli Liu. "The Dynamic Analysis and Comparison of Emergy Ecological Footprint for the Qinghai–Tibet Plateau: A Case Study of Qinghai Province and Tibet." Sustainability 11, no. 20 (October 11, 2019): 5587. http://dx.doi.org/10.3390/su11205587.
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The Qinghai–Tibet Plateau is experiencing rapid urbanization and ecological degradation, which have led to unsustainable development. It is urgent to conduct a scientifically rigorous study to evaluate its sustainability. Emergy ecological footprint (EEF) is a new modification of ecological footprint based on ecological thermodynamics. This study applied a modified EEF model and three indicators to analyze the sustainability using data collected from Tibet and Qinghai Province during 1995 to 2014. The grey model (GM) was applied to simulate and predict the ecological status of Qinghai and Tibet. Results showed that: (1) the emergy ecological footprint and ecological deficit of Qinghai province increased in general from 1995 to 2014, while Tibet was still sustainable during this period despite the fact that its ecological surplus decreased; (2) the three sustainability indicators indicate that Qinghai and Tibet are moving away from sustainability; (3) the ecological deficit of Qinghai will keep increasing and the ecological surplus of Tibet will keep decreasing from 2015 to 2024. Finally, several suggestions were proposed to protect the local environment and restore ecological functions in these regions.
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Li, Yanjun, Xingqin An, Guangzhou Fan, Chao Wang, Yang Zhao, and Jiangtao Li. "Influence of Thermal Effects on Qinghai-Tibet Plateau on Air Quality in Typical Regions of China in Winter." Atmosphere 11, no. 1 (December 30, 2019): 50. http://dx.doi.org/10.3390/atmos11010050.
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In this paper, the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) monthly average reanalysis data from 1954 to 2017, haze days observation data from 1954 to 2017, and PM2.5 daily average mass concentration data from 2013 to 2017 are collected and collated. Firstly, the atmospheric apparent heat source on the Qinghai-Tibet Plateau is estimated based on thermodynamic equations. The correlation between the atmospheric apparent heat source (Q1) on the Qinghai-Tibet Plateau and the air quality in China, especially in the five typical regions (Beijing-Tianjin-Hebei, Fen-Wei Plain, Yangtze River Delta, Pearl River Delta, and Sichuan-Chongqing regions) is analyzed and studied. Through comprehensive diagnosis and synthesis, the differences of the three-dimensional spatial distribution of the circulation field and temperature field (planes and sections) in China and the typical regions in the strong and weak years of the apparent heat source Q1 on the Qinghai-Tibet Plateau in winter are compared, and the different distribution characteristics of the climate circulation background causing the strong and weak years of Q1 on the Qinghai-Tibet Plateau and the influence mechanism on the air quality in different regions in China are discussed. The results show that the spatial distribution of correlation between Q1 on the Qinghai-Tibet Plateau and PM2.5 in December has a northeast-southwest boundary. There is a negative correlation in the southeast region of the boundary, with heavy pollution when the cold source is strong and light pollution when the cold source is weak, while there is a positive correlation in the northwest region of the boundary, with light pollution when the cold source is strong and heavy pollution when the cold source is weak. The Q1 on Qinghai-Tibet Plateau is negatively correlated with air pollution in Beijing-Tianjin-Hebei and Fen-Wei Plain located in the northwest region of the boundary but positively correlated with air pollution in the Yangtze River Delta, Pearl River Delta, and Sichuan-Chongqing regions located in the southeast region of the boundary. In the cold source strong year, the northerly winds are stronger in the middle and high latitudes, and there is an abnormal northerly downward flow in the southeast region, thus the pollution is aggravated by the suppression of convection–diffusion in a downward flow. However, abnormal updraft in the northwest region exists, reducing pollution. In the cold source weak year, the situation is just the opposite.
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Li, Yigang, Yadong Zhou, Fan Liu, Xing Liu, and Qingfeng Wang. "Diversity Patterns of Wetland Angiosperms in the Qinghai-Tibet Plateau, China." Diversity 14, no. 10 (September 20, 2022): 777. http://dx.doi.org/10.3390/d14100777.
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The Qinghai-Tibet Plateau, has a special geological history, diverse habitats, a complex climate, and a large number of wetlands, which harbor a huge of wetland plants. In this study, we sorted out the monographs, literatures and online databases, as well as our own collection from field surveys, and comprehensively combed the checklist and county-level diversity of wetland angiosperms and endangered species in the Qinghai-Tibet Plateau for the first time. The distribution pattern of species richness was analyzed through three groups of environmental variables: energy, water, and habitat. The wetland angiosperms have high richness, with a total of 2329 species, belonging to 91 families and 438 genera, mainly hygrophytes (94.98%). The spatial distribution is uneven, and gradually decreases from the southeast to the northwest of the plateau. Species richness decreased with elevation and latitude and increased with longitude. Annual precipitation (AP) and annual mean temperature (AMT) are the most important variables affecting species diversity. Habitat environmental variables had less influence on species richness distribution and wetland area was not associated with richness distribution. The setting of endangered wetland angiosperm reserves needs to focus on the Hengduan Mountains and southeastern Tibet. Our study provided basic data for the research and protection of wetland plant diversity in the Qinghai-Tibet Plateau.
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Zhu, Huasheng, Duer Su, and Fei Yao. "Spatio-Temporal Differences in Economic Security of the Prefecture-Level Cities in Qinghai–Tibet Plateau Region of China: Based on a Triple-Dimension Analytical Framework of Economic Geography." International Journal of Environmental Research and Public Health 19, no. 17 (August 25, 2022): 10605. http://dx.doi.org/10.3390/ijerph191710605.
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The assessment of regional economic security (RES) is mainly based on the theoretical ideas of political economy and marginalism, and the research areas are mainly concentrated in European and American countries/regions, especially Eastern Europe. Taking the Qinghai–Tibet Plateau in China as an example, this paper constructs a triple-dimensional analytical framework, resources, and environmental–economic foundation-driving forces, based on the institutional approach of economic geography, with the purpose of making up for the deficiency of the extant literature, which pays little attention to regional characteristics and the dynamic mechanism concerning RES, and to provide a tool to identify key factors affecting RES. This paper obtained the main conclusions as follows. (1) The index of the economic security in the Qinghai–Tibet Plateau is on the rise, and the difference at the level of RES among cities is significant but tends to decrease. (2) There is a significant spatial autocorrelation among cities in the Qinghai–Tibet Plateau in terms of RES. The high-value areas are concentrated along the southeast edge, and the low-value areas are concentrated in the central areas of the west. (3) Despite lower weight values, the weakness of the economic foundation and the fragility of the ecological environment has increasingly hampered the improvement of the economic security in the Qinghai–Tibet Plateau. In terms of driving forces, it is the support of the central government and aid programs of other provinces that contributes to its economic development.
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Liu, Wenhao, Ren Li, Tonghua Wu, Xiaoqian Shi, Lin Zhao, Xiaodong Wu, Guojie Hu, et al. "Spatiotemporal Patterns and Regional Differences in Soil Thermal Conductivity on the Qinghai–Tibet Plateau." Remote Sensing 15, no. 4 (February 20, 2023): 1168. http://dx.doi.org/10.3390/rs15041168.
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The Qinghai–Tibet Plateau is an area known to be sensitive to global climate change, and the problems caused by permafrost degradation in the context of climate warming potentially have far-reaching effects on regional hydrogeological processes, ecosystem functions, and engineering safety. Soil thermal conductivity (STC) is a key input parameter for temperature and surface energy simulations of the permafrost active layer. Therefore, understanding the spatial distribution patterns and variation characteristics of STC is important for accurate simulation and future predictions of permafrost on the Qinghai–Tibet Plateau. However, no systematic research has been conducted on this topic. In this study, based on a dataset of 2972 STC measurements, we simulated the spatial distribution patterns and spatiotemporal variation of STC in the shallow layer (5 cm) of the Qinghai–Tibet Plateau and the permafrost area using a machine learning model. The monthly analysis results showed that the STC was high from May to August and low from January to April and from September to December. In addition, the mean STC in the permafrost region of the Qinghai–Tibet Plateau was higher during the thawing period than during the freezing period, while the STC in the eastern and southeastern regions is generally higher than that in the western and northwestern regions. From 2005 to 2018, the difference between the STC in the permafrost region during the thawing and freezing periods gradually decreased, with a slight difference in the western hinterland region and a large difference in the eastern region. In areas with specific landforms such as basins and mountainous areas, the changes in the STC during the thawing and freezing periods were different or even opposite. The STC of alpine meadow was found to be most sensitive to the changes during the thawing and freezing periods within the permafrost zone, while the STC for bare land, alpine desert, and alpine swamp meadow decreased overall between 2005 and 2018. The results of this study provide important baseline data for the subsequent analysis and simulation of the permafrost on the Qinghai–Tibet Plateau.
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Z J, Gou, and Liu F G. "Donggi Conag Lake, Qinghai-Tibet Plateau, China." Journal of Global Change Data & Discovery 2, no. 4 (2018): 454–55. http://dx.doi.org/10.3974/geodp.2018.04.15.
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Z J, Gou, and Liu F G. "Gahai Lake, Qinghai-Tibet Plateau (Delingha), China." Journal of Global Change Data & Discovery 2, no. 4 (2018): 456–57. http://dx.doi.org/10.3974/geodp.2018.04.16.
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Pan, Guitang, Liquan Wang, Rongshe Li, Sihua Yuan, Wenhua Ji, Fuguang Yin, Wanping Zhang, and Baodi Wang. "Tectonic evolution of the Qinghai-Tibet Plateau." Journal of Asian Earth Sciences 53 (July 2012): 3–14. http://dx.doi.org/10.1016/j.jseaes.2011.12.018.
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Zhang, Fei-Xue, Ling-Hua Yang, Chun-Jing Wang, Chun-Hui Zhang, and Ji-Zhong Wan. "Distribution and Conservation of Plants in the Northeastern Qinghai–Tibet Plateau under Climate Change." Diversity 14, no. 11 (November 7, 2022): 956. http://dx.doi.org/10.3390/d14110956.
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Climate change is causing unprecedented alterations in the spatial pattern of global biodiversity, imposing severe challenges for biodiversity conservation. In particular, alpine biomes are sensitive to a variety of environmental changes. Therefore, understanding the distribution and conservation of alpine plant biodiversity is vital. In this study, we used species distribution modeling and 20,650 high-resolution occurrence coordinates of 1224 plant species to evaluate the potential distribution of plants in the northeastern Qinghai–Tibet Plateau (Qinghai Province, China) under different future climate scenarios, through an integrative analysis of species distribution probabilities, species richness, and priority conservation areas. Under current and future climate scenarios, the plant species are predicted to be mainly distributed in eastern and southern Qinghai Province, with the suitable conditions for plant species gradually extending from the southeast to the northwest of Qinghai Province under the effects of climate change. The priority conservation areas in Qinghai national nature reserves are predicted to expand, with this expansion being greater for herbaceous plants than woody plants, under future climate scenarios. However, the priority conservation areas outside nature reserves in Qinghai Province remain approximately three times larger than those inside nature reserves. Thus, there were great differences between the existing nature reserve area and the priority conservation areas, with nature reserves insufficiently covering priority conservation areas in Qinghai Province. Therefore, the original nature reserve areas should be expanded, according to the predicted plant habitat hotspots in Qinghai Province. Our research provides valuable information for biodiversity protection in the northeastern Qinghai–Tibet Plateau, reasonable strategies for addressing the future protection challenges associated with climate pressure, and new insights for improving nature reserves in the Qinghai–Tibet Plateau.
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XIANG, YA-NAN, QING-BO HUO, and YU-ZHOU DU. "A new species of the genus Claassenia (Plecoptera: Perlidae) from China." Zootaxa 5093, no. 2 (January 26, 2022): 233–40. http://dx.doi.org/10.11646/zootaxa.5093.2.6.
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A new species, Claassenia qingzanga Xiang, Huo & Du, sp. nov. is described from Tibet and Qinghai Province of western China, this is the first record of Claassenia in Qinghai-Tibet Plateau. Males of the new species are brachypterous, the apex of the aedeagus with tiny spines dorsally and with dense protrusion laterally. The new species is compared to all regional Claassenia.
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Ma, Weidong, Wei Jia, Peng Su, Xingyun Feng, Fenggui Liu, and Jing’ai Wang. "Mapping Highland Barley on the Qinghai–Tibet Combing Landsat OLI Data and Object-Oriented Classification Method." Land 10, no. 10 (September 29, 2021): 1022. http://dx.doi.org/10.3390/land10101022.
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In this paper, we use the extraction method of multi-factors fusion to extract the Highland barley cultivation area on Qinghai–Tibet Plateau. The study results indicate that: (1) the method (extracting through multi-factors fusion) is efficient during the extracting process and is highly accurate in extraction results. This extraction scheme allows for not only the spatial heterogeneity of different physical geographic units, but also the impact of multi-factors on crop cultivation; (2) according to our research, the total Highland barley cultivation area on Qinghai–Tibet Plateau is about 2.74 × 105 ha. Based on the statistics, we draw the first distribution map of the Highland barley cultivation area on Qinghai–Tibet Plateau, which upgrades its spatial distribution pattern from administrative unit to patch unit; (3) Highland barley in various divisions has a distinct spatial heterogeneity in elevation. On the whole, the Highland barley on the plateau is planted at an elevation of 2500–4500 m, up to 5200 m. Due to the impact of topography diversity, temperature, moisture, light, arable land and irrigation conditions, its cultivation area at the same elevation varies in different divisions.
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Zhang, Gaosen, Fujun Niu, Xiaojun Ma, Wei Liu, Maoxing Dong, Huyuan Feng, Lizhe An, and Guodong Cheng. "Phylogenetic diversity of bacteria isolates from the Qinghai-Tibet Plateau permafrost region." Canadian Journal of Microbiology 53, no. 8 (August 2007): 1000–1010. http://dx.doi.org/10.1139/w07-031.
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The Qinghai-Tibet Plateau in east Asia is a unique and important permafrost environment. However, its microbiology remains largely unexplored to date. In this study, sediment samples were collected from the Qinghai-Tibet Plateau permafrost region, bacteria isolation procedures were performed 8 times, and the samples incubated at 4 °C for nearly 3 months. The number of colony forming units (cfu) ranged from 0 to 107/(g dry soil). The quantity of culturable bacteria grew exponentially within the first few weeks, and then slowed gradually to a plateau. Phylogenetic analyses indicated that all the isolates fell into 6 categories: high G+C Gram-positive bacteria, low G+C Gram-positive bacteria, α-Proteobacteria, β-Proteobacteria, γ-Proteobacteria, and Cytophaga–Flavobacterium–Bacteroides group bacteria. The isolates belong to 19 genera, but the genera Arthrobacter and Pseudomonas were predominant. With the increase in incubation time, the isolated populations changed in terms of both species and their respective quantities. Of the 33 analyzed isolates, 9 isolates related to 8 genera might be new taxa. These results suggest that the Qinghai-Tibet Plateau permafrost region is a specific ecologic niche that accommodates an original microbial assemblage.
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Sun, Lu, Hao Li, Jia Wang, Yuhan Chen, Nina Xiong, Zong Wang, Jing Wang, and Jiangqi Xu. "Impacts of Climate Change and Human Activities on NDVI in the Qinghai-Tibet Plateau." Remote Sensing 15, no. 3 (January 18, 2023): 587. http://dx.doi.org/10.3390/rs15030587.
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Vegetation changes and factors have a profound influence on the local ecology, the economy, and the long-term durability of human construction. This study focuses on the impacts of climate change and human activity on vegetation changes on the Qinghai-Tibet Plateau and aims to develop a dataset of human activity levels on the plateau. Sen and Mann-Kendall trend analysis was used to evaluate the spatial distribution of vegetation NDVI and its trends, as well as the lagged response of plant growth to climatic circumstances. Using a geodetector model, the effects of meteorological and anthropogenic intensity data were examined. The study’s findings show that, although anthropogenic influences and ecosystem vulnerability caused a decline in the region’s vegetation, a stable climate and a healthy ecosystem supported the growth of vegetation. From 2000 to 2017, the area where vegetation grass improved significantly accounted for the highest proportion, reaching 34.22%. Different anthropogenic intensities are distributed spatially, and this interplay of anthropogenic intensities and climatic factors affects the distribution of vegetation greenness more than each element acting alone. The study of how human activity and climate change affect vegetation greenness can offer practical recommendations for maintaining the Qinghai-Tibet Plateau’s natural ecology. It is crucial to responsibly safeguard the Qinghai-Tibet Plateau’s environment in response to the nation’s ecological civilization.
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Deng, Dejie, Changliu Wang, and Peihao Peng. "Basic Characteristics and Evolution of Geological Structures in the Eastern Margin of the Qinghai-Tibet Plateau." Earth Sciences Research Journal 23, no. 4 (October 1, 2019): 283–91. http://dx.doi.org/10.15446/esrj.v23n4.84000.
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Based on field geological survey and stratigraphic profile survey in the eastern margin of the Qinghai-Tibet Plateau, the basic characteristics and evolution of geological structure in the eastern margin of the Qinghai-Tibet Plateau are studied. The Dongyuan area of the Qinghai-Tibet Plateau is divided into the late Cenozoic period and the current period. During the Late Cenozoic, the Pliocene Xigeda lacustrine deposits develops from 4.2 MaBP to 2.6 MaBP, with 9 cold-warm climate change stages. There are 4.3 MaBP old glacial period in this area, and 5 extreme paleoclimate events in Quaternary. At present, the horizontal movement intensity and mode of different tectonic zones are determined by the northward extrusion, eastward extrusion and rotation around the eastern tectonic junction in the study area, and the stages of the movement state changing with time are related to the gestation and occurrence of extra-large earthquakes. At present, the three-dimensional crustal movement shows that the tectonic activity differentiation of mountain and basin, which is related to tectonic dynamic environment and deep material activity, is related to the compression, shortening and uplift of plateau mountain and the extension and subsidence of basin, reflecting the inheritance of neotectonic activity. Through practical analysis, it is found that the eastern margin of the Qinghai-Tibet Plateau is composed of Minshan fault block and Longmenshan structural belt. The left-lateral dislocation of Minjiang fault is roughly the same as the vertical dislocation. In Longmenshan tectonic belt, the right-lateral dislocation of Maowen-Wenchuan fault, Beichuan-Yingxiu fault and other main faults is the same as the vertical dislocation.
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Hu, Lei, Jun Xu, Chao Bao, and Tao Pei. "Influential Factor Detection for Tourism on the Qinghai-Tibet Plateau Based on Social Media Data." ISPRS International Journal of Geo-Information 10, no. 9 (August 27, 2021): 579. http://dx.doi.org/10.3390/ijgi10090579.
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Tourism is playing an important role in the economic development of the Qinghai-Tibet Plateau (QTP). To better develop tourism in this region, the spatial heterogeneity of influencing factors on tourism needs to be studied. Using the spatial distribution of tourism potential from social media data, this paper analyzes the influencing factors of tourism on the QTP from the perspective of spatial heterogeneity. We extract microblogs related to travel topics connected to the QTP in 2017 from Sina Weibo to capture tourism potential. Then, factors considered from six aspects (tourism resources, amenities, transportation, geography, population, and the economy) are selected, and a geographic detector (Geodetector) is employed to detect the explanatory power of these factors for tourism potential. The results indicate different influential tourism factors in Qinghai and Tibet. In Qinghai, the main factors are hotels, tourist attractions, and road network density, and the explanatory power of the factors mainly comes from eastern and western Qinghai. In Tibet, the main factors are road network density, regional GDP (Gross Domestic Product), and urban land. It is suggested that tourism in the central region of Qinghai can be improved by enhancing the publicity and utilization of tourism resources, and Tibet should enhance tourism resource utilization and improve tourism amenities and infrastructure.
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Jin, Hongli, Yanfang Liu, Fan Yang, Jixia Wang, Dongmei Fu, Xiuli Zhang, Xiaojun Peng, and Xinmiao Liang. "Characterization of anthocyanins in wild Lycium ruthenicum Murray by HPLC-DAD/QTOF-MS/MS." Analytical Methods 7, no. 12 (2015): 4947–56. http://dx.doi.org/10.1039/c5ay00612k.
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Eli, Buzohre, Yueyue Zhou, Yiming Liang, Jin Cheng, Jiazhou Wang, Changbing Huang, Xi Xuan, and Zhengkui Liu. "Depression in Children and Adolescents on the Qinghai-Tibet Plateau: Associations with Resilience and Prosocial Behavior." International Journal of Environmental Research and Public Health 18, no. 2 (January 8, 2021): 440. http://dx.doi.org/10.3390/ijerph18020440.
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Depression in children and adolescents has become a serious public health problem worldwide. The objectives of this study were twofold: first, to investigate the status of depression among children and adolescents on the Qinghai-Tibet Plateau, the highest plateau in the world, with an average altitude of more than 4200 m (13,776 feet), and second, to examine the associations among prosocial behavior, resilience, and depression. A cross-sectional study was conducted among children and adolescents from Yushu Prefecture on the Qinghai-Tibet Plateau. A total of 11,160 participants aged 10–17 years (Mage = 14.34 years, SD = 1.77; 51.4% girls) were included. Self-reported depression, resilience, and prosocial behavior were assessed. The prevalence of depression was 29.2% in the current study. Higher levels of prosocial behavior were significantly associated with lower levels of depression (β = −0.25, p < 0.001). Furthermore, resilience significantly moderated the relationship between prosocial behavior and depression (β = −0.08, p < 0.001); that is, resilience enhanced the protective role of prosocial behavior in depression. These findings indicate that resilience may play an important role in the associations between prosocial behavior and depression, which suggests that improving resilience is essential for the prevention and intervention of depression among children and adolescents on the Qinghai-Tibet Plateau.
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Fu, Shujing, Xuexia Zhang, Wenhui Kuang, and Changqing Guo. "Characteristics of Changes in Urban Land Use and Efficiency Evaluation in the Qinghai–Tibet Plateau from 1990 to 2020." Land 11, no. 5 (May 22, 2022): 757. http://dx.doi.org/10.3390/land11050757.
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The Qinghai–Tibet Plateau has seen decades of changes in land use/cover as a result of urbanization and regional planning policy. Research on the efficiency of social development aids in the pursuit of social and environmental sustainability. Based on CLUD and socioeconomic statistical data, this study systematically analyses the spatiotemporal evolution characteristics of urban land use in the Qinghai–Tibet Plateau and evaluates its social development efficiency from three perspectives—the holistic, the municipal, and urban hierarchy—by using indicators such as the Moran index, land use efficiency, and urban expansion speed and proportion. Results show that the urbanization rate climbed from 21.26% to 54.95%, and the area of urban lands increased from 201.93 km2 to 796.59 km2 from 1990 to 2020, with urban lands expanding from the Lanzhou–Xining City Area to the central and south of the Qinghai–Tibet Plateau. The holistic urban land use efficiency grew from 1.14 to 1.53, while the UPD decreased slightly from 1.44 to 1.31, and the UED increased steadily from 1.40 to 12.97 per decade. Moreover, we should pay attention to the rational allocation of land in human, social and ecosystem terms to comprehensively improve the quality of urbanization across the plateau.
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Eli, Buzohre, Yueyue Zhou, Yiming Liang, Jin Cheng, Jiazhou Wang, Changbing Huang, Xi Xuan, and Zhengkui Liu. "Depression in Children and Adolescents on the Qinghai-Tibet Plateau: Associations with Resilience and Prosocial Behavior." International Journal of Environmental Research and Public Health 18, no. 2 (January 8, 2021): 440. http://dx.doi.org/10.3390/ijerph18020440.
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Depression in children and adolescents has become a serious public health problem worldwide. The objectives of this study were twofold: first, to investigate the status of depression among children and adolescents on the Qinghai-Tibet Plateau, the highest plateau in the world, with an average altitude of more than 4200 m (13,776 feet), and second, to examine the associations among prosocial behavior, resilience, and depression. A cross-sectional study was conducted among children and adolescents from Yushu Prefecture on the Qinghai-Tibet Plateau. A total of 11,160 participants aged 10–17 years (Mage = 14.34 years, SD = 1.77; 51.4% girls) were included. Self-reported depression, resilience, and prosocial behavior were assessed. The prevalence of depression was 29.2% in the current study. Higher levels of prosocial behavior were significantly associated with lower levels of depression (β = −0.25, p < 0.001). Furthermore, resilience significantly moderated the relationship between prosocial behavior and depression (β = −0.08, p < 0.001); that is, resilience enhanced the protective role of prosocial behavior in depression. These findings indicate that resilience may play an important role in the associations between prosocial behavior and depression, which suggests that improving resilience is essential for the prevention and intervention of depression among children and adolescents on the Qinghai-Tibet Plateau.
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Zeng, Junze, Junfeng Xie, Ren Liu, Fan Mo, and Xiaomeng Yang. "Research on Glacier Elevation Variability in the Qilian Mountains of the Qinghai-Tibet Plateau Based on Topographic Correction by Pyramid Registration." Remote Sensing 15, no. 1 (December 22, 2022): 62. http://dx.doi.org/10.3390/rs15010062.
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As the ‘Third Pole’ of the world, the Qinghai-Tibet Plateau is also known as the Asian Water Tower. The glaciers covering its surface can reflect changes in the global climate and ecological environment. Therefore, the critical need for accurate information regarding the elevation changes of the glaciers on the Qinghai-Tibet Plateau is self-evident. Here we present a method for monitoring the elevation change of the glaciers on the Qinghai-Tibet Plateau that is based on pyramid registration and terrain correction techniques. The registration results show that the average elevation difference in the stable area has been improved to a considerable extent, at least 70%. The elevation difference after registration obeys a Gaussian distribution with a mean of 0. In this study, glaciers in the Qilian Mountains of the Qinghai-Tibet Plateau were used as the experimental objects, and the changes in glacier elevation in the region were monitored over the past three years. The results show that from 2019 to 2021, the glaciers in the western Qilian Mountains thinned significantly, and the glacier elevation change rate was –0.99 ± 0.34 m/year. The changes in glaciers in the southwest and north were relatively minor, with change rates of 0.09 ± 0.94 m/year and –0.08 ± 0.79 m/year, respectively. The change rates of the two glaciers in the middle were 0.74 ± 0.84 m/year and –0.16 ± 0.85 m/year, and the glacier change rate in the northeast was –0.27 ± 0.77 m/year. Finally, combined with meteorological data analysis, it is concluded that the change in glacier elevation is primarily affected by temperature and precipitation. Among these, precipitation accounts for the dominant factor impacting glacier elevation change.
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Li, Han, and Wei Song. "Spatiotemporal Distribution and Influencing Factors of Ecosystem Vulnerability on Qinghai-Tibet Plateau." International Journal of Environmental Research and Public Health 18, no. 12 (June 16, 2021): 6508. http://dx.doi.org/10.3390/ijerph18126508.
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As the “Third Pole”, the Qinghai-Tibet Plateau is threatened by environmental changes. Ecosystem vulnerability refers to the sensitivity and resilience of ecosystems to external disturbances. However, there is a lack of relevant studies on the driving factors of ecosystem vulnerability. Therefore, based on spatial principal components analysis and geographic detectors methods, this paper evaluates the ecosystem vulnerability and its driving factors on the Qinghai-Tibet Plateau from the years 2005 to 2015. The results were as follows: (1) The ecosystem vulnerability index (EVI) of the Qinghai-Tibet Plateau is mainly heavy and extreme, showing a gradually increasing trend from southeast to northwest. (2) The spatial heterogeneity of the EVI is significant in the southeast and northwest, but not in the southwest and central parts. (3) Analysis of influencing factors shows that environmental factors have more significant effects on EVI than socioeconomic variables, facilitating the proposal of adequate policy implications. More efforts should be devoted to ecological protection and restoration to prevent grassland degradation and desertification in the high-EVI areas in northwest. The government is also urged to improve the ecological compensation mechanisms and balance ecological protection and residents’ development needs in the southeast.
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Fang, Haonan. "The Analysis of Application Prospect and Sustainable Mode of Regional Resources in the Context of Tibetan Medicine Culture." Journal of Humanities and Social Sciences Studies 4, no. 4 (October 1, 2022): 62–71. http://dx.doi.org/10.32996/jhsss.2022.4.4.10.
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At present, the Tibetan medicine culture formed by Tibetan medicine and Tibetan Buddhism has a state of aphasia in the global multicultural context. Furthermore, the medicinal resources bred in the special geographical location of the Qinghai-Tibet Plateau are not only the important material basis for the formation and development of Tibetan medicine culture but also provide potential value for modern drug discovery and medical research. Based on the existing research texts and scientific research data, this paper constructs the SPS sustainable development framework by combing the general situation of the medicinal resource and industry in the Qinghai-Tibet plateau, the background, and the prospect of the formation of Tibetan medicine culture, which provides the basic theoretical research and relevant countermeasures for the sustainable development and resource reuse of Tibetan medicine in the context of Tibetan medicine culture. It is meaningful that the research on the cultural propaganda of Tibetan medicine's national idea and medicinal value has found that the cultural industry code and the resource application potential in the Qinghai-Tibet Plateau region will have prominent geo-economic benefits in the near future, especially in the moment when the global epidemic is suddenly spreading.
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Feng, Xi Zhou, and Zheng Ping Liu. "Discussion on Permafrost Hazards of Railway Engineering and Prevention Measures: A Case Study on Qinghai-Tibet Railway." Advanced Materials Research 550-553 (July 2012): 2493–97. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.2493.
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The Qinghai-Tibet Railway(QTR) is the highest and longest plateau railway in permafrost region in the world. The Qinghai-Tibet Railway in permafrost area locates in the hinterland of Qinghai-Tibet Plateau, which belongs to a low latitude, high altitude permafrost area. In this area, that the poor thermal stability, high ice content, and many other complex factors seriously impacts survey and design of The Qinghai-Tibet Railway. Permafrost is a special soil, it has many features different from the ordinary soil. And permafrost thawing layer has seasonal freezing-thawing process every year, along with a few of adverse geological phenomenon, which results in a series of engineering problems. This paper introduces the basic characteristics of permafrost along Qinghai-Tibet Railway, expounds the permafrost hazards of railway engineering, such as frost heaving, freeze thawing, frost boiling of roadbed, thaw collapse and mud flow, bridge foundation frost heaving and thaw settlement, deformation and cracking, culvert foundation freeze-thaw deformation, tunnel lining frost heaving and so on. Briefly analyzes the influence mechanism of permafrost to railway engineering. And then, proposes a temporary prescript for the railway engineering in different type of permafrost area. It is that each engineering in different area has to adopt different design concept and different prevention measures. At last, proposes the prevention measures and suggestions for the railway engineering in the permafrost region, such as reasonable control of embankment height, rubble air-cooled embankment, crushed stone slope protection with thermal insulation subgrade, heat pipe subgrade, ventilating pipe subgrade and so on.
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Li, Xiaoyan, Xiaofan Yang, Yujun Ma, Guangrong Hu, Xia Hu, Xiuchen Wu, Pei Wang, Yongmei Huang, Buli Cui, and Junqi Wei. "Qinghai Lake Basin Critical Zone Observatory on the Qinghai-Tibet Plateau." Vadose Zone Journal 17, no. 1 (2018): 180069. http://dx.doi.org/10.2136/vzj2018.04.0069.
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Su, Benyu, Rongfu Rao, Zhixiong Li, Lei Song, and Jianhua Yue. "Detecting Permafrost in Plateau and Mountainous Areas by Airborne Transient Electromagnetic Sensing." Electronics 9, no. 8 (July 30, 2020): 1229. http://dx.doi.org/10.3390/electronics9081229.
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Transportation has become a key bottleneck which restricts economic development in Western China. However, during the construction of the western railway, the permafrost problem has plagued railway construction on the Qinghai–Tibet Plateau, and has not yet been resolved. Accurately identifying permafrost by geophysical method is the most effective means to solve this problem. However, the mountainous and plateau terrain in Western China impose huge challenges in collecting geophysical data. To address this issue, this paper proposes an airborne transient electromagnetic method to collect geophysical electromagnetic data to identify permafrost in the mountains and plateaus of Western China. Based on Maxwell’s equations, the forward model of the airborne electromagnetic was derived, and the finite element method was used to calculate the two-dimensional (2D) space electromagnetic responses of different permafrost geo-electrical models. Furthermore, a coupling function was constructed to estimate the distribution of the resistivity of the permafrost by the least-squares fitting algorithm. Comparison between inversion resistivity distribution and the geo-electrical model showed that the proposed airborne transient electromagnetic method was valid for exploring the permafrost in the mountains and the Qinghai–Tibet Plateau in Western China.