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Academic literature on the topic 'Qinghai-Tibet Plateau'

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Published: 11 March 2023

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Journal articles on the topic "Qinghai-Tibet Plateau"

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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Dissertations / Theses on the topic "Qinghai-Tibet Plateau"

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Wang, Yun Summer, and 王筠. "Love to the eternity : eco-tourism design along Qinghai-Tibet railway." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/207151.

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Transportation is an integral par t of the tourism industry. It is largely due to the improvement of transportation that tourism has expanded. The impacts on the ecology, degradation of destination sites, tourist experience, and economy has called for a better management of this resource. Transportation can be divided into two parts. One is the mobility infrastructure such as railway and highway, connecting and sometimes dividing the tourism destination. And another is site infrastructure which is in the tourism destination and guides the tourists to explore the place. Few places are as globally significant as the Tibetan Plateau, writes Daniel J Miller. Understanding this means looking at the region from a holistic, ecological standpoint. It has huge biodiversity resource and stores a lot of ice on the mountain. Religious affect this area so that it can remain in the harmony of the people and the nature. The Qinghai-Tibet railway is built for the policy or economic reason after is construction finished in 1st of July, 2006. This transportation greatly changed this area. The tourists’ trend increases 30% in Qinghai and 40% in Tibet in 2007. The income of the tourism also increased. Then the conflict occurred, on the ecological aspect: the wildlife, the One is the stepping destroy by the tourist which may cause soil erosion or vegetation destroy. And the social aspect, tourism reform the local people’s life, increases their income but also challenges the line of their religious faith. The stations along the railway became my focus point. They were like the start point, we can see the government intention, and the economic opportunity. In the meanwhile, it could also be the pollution resource and damage beginning. We can’t just simply stop people from going there. Since the railway is just like a window, advertising the beautiful landscape. If the station can’t access, people will find another way to access, in an uncontrolled way. So it is also an opportunity for expressing a new definition of tourism. Education, love, ecotourism. To make the place love for the people, so that they will have the ownership, they want this landscape keeps forever, so that it be an eternity. My thesis is trying to reach a more sustainable way to develop tourism in this very sensitive area, to create a couple of well-designed station stops which does strict (no access) protection for these areas. My intention is to create a system that combines education and the exploration in tourism.
published_or_final_version
Architecture
Master
Master of Landscape Architecture
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Rui, Yichao. "Soil Carbon, Nitrogen and Phoshorus Dynamics in Response to Warming and Grazing in Alpine Meadow Ecosystem of the Tibet plateau." Thesis, Griffith University, 2013. http://hdl.handle.net/10072/366008.

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Ongoing global climate change is predicted to substantially impact on terrestrial ecosystems. The Qinghai-Tibet plateau is very sensitive to climate change. Alpine meadows, one of the major ecosystems on the Qinghai-Tibet Plateau, is very vulnerable and can be sensitive to both climate change and human disturbance. Grazing is the main land use mode of the alpine meadow ecosystem. Soil carbon (C), nitrogen (N), and phosphorus (P) availability are key to ecosystem productivity, while the alterations in soil C, N and P dynamics can affect ecosystem substantially. Investigation on the response of soil C, N and P cycling and the associated functional microorganisms in the alpine meadow can provide insights into soil function under warming and grazing conditions and sustainable management of the ecosystem. In this thesis, the study was conducted based on a controlled warming-grazing experiment in the Haibei Alpine Meadow Ecosystem Station, Chinese Academy of Sciences (CAS). A free-air temperature enhancement (FATE) system and a moderate grazing intensity were applied to simulate the effects of warming and grazing. Four treatments including no warming with no grazing (NWNG), no warming with grazing (NWG), warming with no grazing (WNG) and warming with grazing (WG) were applied.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Biomolecular and Physical Sciences
Science, Environment, Engineering and Technology
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Wang, Baolai. "Some aspects of plateau permafrost, Qinghai-Xizang (Tibet) Plateau, China, and a comparison with the Mackenzie Delta region, Canada." Thesis, University of Ottawa (Canada), 1993. http://hdl.handle.net/10393/6840.

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Differences in permafrost conditions between the Qinghai-Xizang (Tibet) Plateau and the Mackenzie Delta region primarily relate to their Quaternary histories and their current climates. For example, the Tibetan Plateau has experienced uplift of at least 3,000 m during the last 2 million years. Under the present climatic conditions, the lower altitudinal limit of the plateau permafrost in the north is at 4,150 m a.s.l. This suggests that if the Plateau were 1,000 m lower than its present elevation, there would be no permafrost. During the Quaternary, the Tibetan Plateau remained unglaciated. This has meant that little water was available for the formation of massive ground ice, in contrast to the Mackenzie Delta region. Located at 68-69$\sp\circ$N, the Mackenzie Delta region experiences a combination of low air temperature in winter, a long solar night and a short thaw period in summer. The result is a relatively thin active layer. Located at 30-34$\sp\circ$N, the Tibetan Plateau experiences much higher solar insolation, and a diurnal temperature rhythm. The thickness of the active layer is much greater than in the Mackenzie Delta region and varies between 1.3 and 3 m or more. Permafrost on the Tibetan Plateau is much warmer and thinner than that in the Mackenzie Delta region. One consequence is that it is more sensitive to any changes in climate and surface conditions. Deep ground temperatures in the Pleistocene Mackenzie Delta indicate a recent warming trend, while a cooling trend in the Modern Delta likely relates to local factors such as channel shifting and emergence and/or sedimentation in the Mackenzie River. Water bodies are a cause of geothermal disturbances common to both regions. Numerical simulation of rapid coastal retreat in the Mackenzie Delta region indicates that subsea permafrost is at least 3$\sp\circ$C warmer than adjacent terrestrial permafrost. On the Tibetan Plateau, faulting also disturbs the geothermal regime. Measurements of in situ permafrost creep in the Fenghuo Shan area are one indicator of the warmer permafrost temperatures on the Tibetan Plateau. The average creep velocity ranges from 0.16 cm/year at 2.8 m depth to 0.54 cm/year at 1.6 m depth. These velocities are greater than those recently obtained from the High Arctic of Canada and are approximately of the order of magnitude as those obtained in the Mackenzie Valley. Inter-continental comparison of creep data suggests that climate controls the regional (large scale) magnitude of creep, and that ground ice is a local factor controlling creep rate in a particular area or site. A constitutive relationship (secondary creep power flow law) was applied to the field creep data; and creep parameters A and n were determined for each of the three different depths in the West Valley, Fenghuo Shan area, Tibetan Plateau.
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Zhang, Xuemei. "The Structural Model of the Lithosphere-asthenosphere System in the Qinghai-Tibet and its adjacent Areas from Surface Wave Tomography." Doctoral thesis, Università degli studi di Trieste, 2010. http://hdl.handle.net/10077/3622.

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2008/2009
The Qinghai-Tibet Plateau lies at the continent-continent collision between the Indian and Eurasian plates. Because of their interaction the shallow and deep structures are very complicated with different tectonic units. The force system forming the tectonic patterns and driving tectonic movements is exerted together by the deep part of the lithosphere and the asthenosphere. In the recent decades, many deep explorations have been performed and a series of important results about the collision models of Indian and Eurasian plates and their deep structures have been gained, but the studies on the fine structure of the lithosphere-asthenosphere system are still a few. In order to get knowledge about their formation and evolution, dynamic process, layers coupling and exchange of material and energy, it is important to study the 3-D velocity structures, the material properties and physical state of the lithosphere-asthenosphere system. Based on the Rayleigh wave dispersion theory, we study the 3-D velocity structures, including the crust, of the lithosphere-asthenosphere system in the Qinghai-Tibet Plateau and its adjacent areas. In the study area (20ºN - 50ºN, 70ºE - 110ºE) we collect long period and broad-band seismic data from the global and regional seismic networks surrounding the area: G (Geoscope), IC (NCDSN) , II/IU (GSN), KZ (Kazakhstan), XA (Bhutan), XR (INDEPTH II&III), YA (2003MIT-China), and YL (Himalayan Nepal Tibet Experiment) during the period of 1966-2007. After making instrumental correction and proper band-pass filtering, group velocities dispersion of fundamental mode of Rayleigh waves are measured using the frequency-time analysis (FTAN). Cluster averaging is applied to similar ray paths and, in such a way, a set of dispersion curves, in the period range from 8 s to 150 s is obtained along 791 paths. A 2-Dsurface-wave tomography method capable to evaluate the average lateral resolution, proposed by Yanovskaya, is applied to calculate the lateral variations in the group velocity distribution at the different periods. The lateral heterogeneity resolution has been estimated to be about 200 km in most of the study area. To be consistent with the resolution level, the group velocity maps, at different periods, are discretized in cells of 2o×2o. The most conspicuous low group velocity anomaly, in the period range from 25 s to 40 s appears in whole Qinghai-Tibet Plateau, while the Indian Plate and the Yangtze craton are characterized by high group velocity anomalies. At the intermediate periods (50 - 80 s) the most dominant feature is the NW-SE directed low velocity anomaly in the Qinghai-Tibet Plateau. At the long ii periods the velocity anomaly is comparable with the anomaly at the lower periods. The determination of the shear-wave velocity distribution versus depth from a surface wave dispersion curve is a severely non-linear problem. The non-linear Hedgehog inversion method (Panza, 1981) is applied to the surface wave tomography cellular dispersion curves to obtain shear wave velocity-depth models of the crust and upper mantle. The non-linear inversion does not depend upon the initial model. Since the Hedgehog is a non-linear procedure, the inversion is multi-valued, i.e., a set of equally probable model is accepted, which is consistent, within the chosen parametrization, with the experimental errors. An ensemble of acceptable models is found and in order to summarize and define the geological meaning of the results, it is often necessary to identify a representative model. Physical and mathematical reasons can be used to define the criteria that allow us to select a unique solutions. The Local Smoothness Optimization (LSO) (Panza et al., 2007；Boyadzhiev et al., 2008) fixes the solution as the one which minimizes the norm between neighbouring cells. Applying the first iteration of LSO, the Starting Cell (SC) is chosen such that satisfies the analogous objective criterion: the cell with the minimal divergence between the accepted solutions. Staring from the SC, the LSO takes, as representative model, the solution that has the smallest distance (difference in the velocity) in l2 with respect to the models of the neighbouring cells. The LSO method is a smoothness criteria, which can avoid the introduction of heterogeneities that can arise from a subjective choice. However, in the Qinghai-Tibet Plateau and its vicinity, the heterogeneity is too severe to apply LSO to the whole study area, because its deep structure is very complicated. It is appropriate to obtain representative models by LSO method in local regions, each with different starting cell (SC). Since the Hedgehog non-linear inversion and the local smoothing algorithm provide us only a mathematical solution, the representative models are chosen, considering a priori geophysical and geological information. The top and bottom of the lithosphere and asthenosphere are recognized from the velocity values and velocity contrast between the layers. These thicknesses are helpful to study the structural differences between the Qinghai-Tibet Plateau and its adjacent areas and among different geologic units of the plateau. Taking into account also previous investigations, the following conclusions are reached from the distributions of the S-wave velocities in the crust and the upper mantle and thicknesses of the crust, lithosphere and asthenosphere. (1) The crust is very thick in the Qinghai-Tibet Plateau, and varies from 60 km to iii 80 km. The lithospheric thickness in the Qinghai-Tibet Plateau is smaller (125-160 km) than in the adjacent areas. The asthenosphere is relatively thick, varies from 100 km to 200 km, and the thickest area lies in the western Qiangtang block (QT). India, located to the south of the Main Boundary thrust, has a thinner crust (32-42 km), a thicker lithosphere of 190 km and a rather thin asthenosphere of only about 80 km. Sichuan and Tarim basins have the crust thickness less than 50 km. Their lithospheres are thicker than the Qinghai-Tibet Plateau, and their asthenospheres are thinner. (2) The uppermost mantle of the Indian Plate is subducted almost horizontally beneath the Himalaya block (HM) and the Lhasa block (LS), and the subduction is delimited by the Bangong-Nujiang suture belt (BNS). The Indian lithospheric lid is also subducted with a large-angle beneath the Eurasian Plate before the Yalung-Zangbo suture belt (YZS). The low velocity lower crust and asthenosphere, detected in central Qinghai-Tibet Plateau, show that in the Qiangtang block (QT) the temperature is high, well in agreement with the active Cenozoic volcanism in the area. We also think that the underplating of the asthenosphere may thin the lithosphere and that the buoyancy might be the main mechanism of deep dynamics of the uplift of the Qinghai-Tibet hinterland. (3) Inside the plateau two blocks can be recognized, divided by an NNE striking boundary running between 90ºE ~ 92ºE. The shear-wave velocities of the crust and the thicknesses of the lithosphere and asthenosphere in the eastern Qinghai-Tibet Plateau are different from those in the western one. The width of the boundary between the eastern Qinghai-Tibet Plateau and the western one may be 2° ~ 3°. (4)The continental surface loss by the kinematic shortening is not compensated by the increment of the crust thickness due to the collision of Indian Plate and Eurasian Plate. Therefore we may deduce that the crustal material is laterally extruded along a channel between the Jinshajiang suture belt (JSJS) and Banggong-Nujiang suture belt (BNS), and rotated around the eastern Himalayan Syntaxes because of the obstacle of the Yangze block. The source of the lateral extrusion may be in the Qiangtang block (QT).
XXI Ciclo
1974
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Bosch, Anna [Verfasser], and Thomas [Akademischer Betreuer] Scholten. "Quantification of soil CO2 emissions under the influence of climate change on the Qinghai-Tibet Plateau based on freely accessible data / Anna Bosch ; Betreuer: Thomas Scholten." Tübingen : Universitätsbibliothek Tübingen, 2017. http://d-nb.info/1165578069/34.

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Bosch, Anna Verfasser], and Thomas [Akademischer Betreuer] [Scholten. "Quantification of soil CO2 emissions under the influence of climate change on the Qinghai-Tibet Plateau based on freely accessible data / Anna Bosch ; Betreuer: Thomas Scholten." Tübingen : Universitätsbibliothek Tübingen, 2017. http://d-nb.info/1165578069/34.

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Matuszak, Sabine Verfasser], Alexandra [Akademischer Betreuer] Müllner-Riehl, Adrien [Akademischer Betreuer] Favre, and Georg [Akademischer Betreuer] [Zizka. "Evolution of Mountain Plants in the region of the Qinghai-Tibet Plateau and beyond / Sabine Matuszak. Betreuer: Alexandra Müllner-Riehl ; Adrien Favre. Gutachter: Alexandra Müllner-Riehl ; Georg Zizka." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2016. http://d-nb.info/1092187448/34.

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Cotte, Nathalie. "Détermination des variations latérales de la lithosphère par l'analyse des ondes de surface enregistrées par des réseaux régionaux." Phd thesis, Grenoble 1, 2000. http://tel.archives-ouvertes.fr/tel-00703264.

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Les ondes de surface de période 10-100 secondes sont sensibles à la rigidité de la lithosphère échantillonnée. Dans ce travail de thèse, nous nous sommes intéressés à l'étude des variations latérales de la lithosphère par l'analyse des ondes de surface. La longueur d'onde des variations latérales étudiées est de l'ordre de grandeur décakilométrique. Les méthodes habituellement utilisées avec des stations sismologiques espacées de plusieurs centaines de kilomètres ne sont donc plus satisfaisantes. C'est pourquoi nous avons développé des analyses dites de réseaux denses ou régionaux. Ainsi nous pouvons déterminer les variations latérales de la structure lithosphérique et étudier la propagation des ondes de surface à l'échelle régionale. Nous avons appliqué ces analyses de réseau pour trois études régionales différentes. Tout d'abord nous avons montré les variations brutales de la structure crustale de part et d'autre de la suture du Tsangpo au sud du plateau tibétain. Pour cela, nous avons analysé la vitesse de phase locale ainsi que les variations d'amplitude au travers de la suture. Au nord de la suture du Tsangpo nous avons déterminé une zone à moindre vitesse dans la croûte inférieure alors que nous ne l'observons pas au sud de la suture. Nous avons aussi étudié la lithosphère dans les Alpes françaises et nous avons montré qu'elle s'épaississait d'ouest en est, de 85 à plus de 200 km d'épaisseur sous l'axe de la chaîne alpine. Par ailleurs, nous nous sommes intéressés aux anomalies de la propagation des ondes de surface dans cette région en dissociant les effets dus aux échelles globale et locale. Finalement, nous avons aussi travaillé sur la zone de Sorgenfrei-Tornquist qui sépare l'Europe phanérozoïque à l'ouest de l'Europe paléozoïque à l'est. Nous montrons qu'au sud-ouest de cette zone la lithosphère est peu épaisse, autour de 50-100 km, et qu'au nord-est elle atteint une épaisseur supérieure à 200 km sous le bouclier baltique. Au niveau de la transition, la lithosphère est épaisse de 120 km .
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Pan, Xicai [Verfasser]. "Hydraulic and thermal dynamics at various permafrost sites on the Qinghai-Tibet Plateau / put forward by Xicai Pan." 2011. http://d-nb.info/1013101065/34.

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Huuang, Yung-Ruei, and 黃勇叡. "Lake level changes in Qinghai-Tibet Plateau from Cryosat-2 altimeter: validation by results from repeat altimeter missions and satellite images." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/3777j2.

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碩士
國立交通大學
土木工程系所
105
The mean elevation of the Qinghai-Tibet Plateau (QTP) exceeds 4000 m. Lake levels in the QTP are less affected by human activities than elsewhere, and may better reflect the state of contemporary climate change. Here ground-based lake level measurements are rare. Repeat altimeter missions, particularly TOPEX and ERS series of altimetry, have provided long-term observations of lake levels in the QTP, but their large cross-track distances allow only few lakes to be monitored. In contrast, the Cryosat-2 altimeter, equipped with the new sensor SIRAL (interferometric / synthetic aperture radar altimeter), provides a much finer spatial coverage than repeated missions, and can detect water level changes over a large number of lakes in the QTP. In this study, Cryosat-2 data are used to determine lake level changes in the QTP (75˚E-100˚E, 28˚N-37.5˚N), where Cryosat-2 provides data over 60 lakes and SARAL / AltiKa over 32 lakes from 2013 to 2016. Over a lake, Cryosat-2 in different cycles can pass through different spots, making the numbers of observations non-uniform and requiring corrections for lateral variations in geoidal undulation. Four cases are used to cope with these: (1) neglecting inconsistency in data volume and geoid-based lake slope (2) considering data volume, (3) considering lake slope only, (4) considering both data volume and lake slope. Because Cryosat-2 is available only from 2010 to 2016, Jason-2 data are used to fill gaps between the time series of Cryosat-2 and ICESat (2003-2009) to obtain >10 years of lake level changes.The Cryosat-2 result is then compared with the result from the SARAL to determine the best case. The Cryosat-2 result shows dramatic lake level changes in Lakes Kusai, Zhuoaihu and Salt in 2011.Landsat satellite imagery is used to assist the determination of volume changes over these lakes..
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Books on the topic "Qinghai-Tibet Plateau"

1

Gongjian, Wu, Xiao Xuchang, and Li Tingdong, eds. Yadong to Golmud Transect: Qinghai-Tibet Plateau, China. Washington, D. C.: American Geophysical Union, 1991. http://dx.doi.org/10.1029/gt003.

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Mianping, Zheng. An Introduction to Saline Lakes on the Qinghai—Tibet Plateau. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1.

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Cheng, Mien-pʻing. An introduction to saline lakes on the Qinghai-Tibet Plateau. Dordrecht: Kluwer Academic Publishers, 1997.

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Wang, Wenying, and Jürgen Hövermann. Reports on the northeastern part of the Qinghai-Xizang (Tibet) plateau. Beijing: Science Press, 1987.

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Sino-W. German Scientific Expedition (1981). Reports on the northeastern part of the Qinghai-Xizang (Tibet) Plateau. Edited by Hövermann Jürgen and Wang Wen-ying. Beijing, China: Science Press, 1987.

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1918-, Péwé Troy Lewis, ed. Origin and character of loesslike silt in the southern Qinghai-Xizang (Tibet) Plateau, China. Washington: U.S. G.P.O., 1995.

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Qing Zang Gaoyuan she hui jing ji shi: The social and economic history of Qinghai-Tibet Plateau. Beijing: She hui ke xue wen xian chu ban she, 2019.

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Chengfa, Chang, Royal Society (Great Britain), and Zhongguo ke xue yuan, eds. The geological evolution of Tibet: Report of the 1985 Royal Society-Academia Sinica Geotraverse of the Qinghai-Xizang Plateau. London: Royal Society, 1988.

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Qing Zang Gaoyuan zhen xi ye sheng dong wu: Precious and rare wildlife in the Qinghai-Tibet Plateau. Chengdu: Sichuan min zu chu ban she, 2010.

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Yongshou, Qi, Liu Fenggui, Liao Lisheng, and Hou Guangliang, eds. Qing Zang Gaoyuan lü you kai fa yan jiu: The study on tourism development of Qinghai-Tibet Plateau. Beijing: Ke xue chu ban she, 2013.

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Book chapters on the topic "Qinghai-Tibet Plateau"

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Chang, Chen-Fa, Yu-Sheng Pan, and Yi-Ying Sun. "The Tectonic Evolution of Qinghai-Tibet Plateau: A Review." In Tectonic Evolution of the Tethyan Region, 415–76. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2253-2_18.

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Mianping, Zheng. "Introduction." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 1–17. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_1.

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Mianping, Zheng. "Biomineralization of Boron and Other Halotolerant Organisms." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 200–210. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_10.

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Mianping, Zheng. "Division of Minerogenic Zones and Prediction of Resource Potential." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 211–30. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_11.

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Mianping, Zheng. "Prospects of Development of Resources of Saline Lakes and their Environmental Protection." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 231–36. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_12.

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Mianping, Zheng. "Saline Lakes and Lake Districts." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 18–22. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_2.

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Mianping, Zheng. "Evolution of Cenozoic Lake Basins and the Formation of Saline Lakes." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 23–54. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_3.

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Mianping, Zheng. "Hydrochemistry and Mineral Associations of Saline Lakes." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 55–78. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_4.

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Mianping, Zheng. "Classification of Saline Lakes and Types of Mineral Deposit." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 79–84. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_5.

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Mianping, Zheng. "Tectonogeochemistry and Regional Geochemistry." In An Introduction to Saline Lakes on the Qinghai—Tibet Plateau, 85–122. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5458-1_6.

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Conference papers on the topic "Qinghai-Tibet Plateau"

1

Li, Zhongqiu. "Effects of Qinghai-Tibet Railway and Highway on Plateau Picas." In 2012 International Conference on Biomedical Engineering and Biotechnology (iCBEB). IEEE, 2012. http://dx.doi.org/10.1109/icbeb.2012.189.

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Yang, Y., Z. Feng, D. Liu, and J. Zhang. "The Spatial-temporal Change of Grassland in Qinghai-Tibet Plateau." In 2006 IEEE International Symposium on Geoscience and Remote Sensing. IEEE, 2006. http://dx.doi.org/10.1109/igarss.2006.795.

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Qin, Yinghong. "Estimate the Permafrost Degradation at Muli Coalfield, Qinghai-Tibet Plateau." In 14th Conference on Cold Regions Engineering. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41072(359)19.

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Feng, Cangxu, Jun Liu, Xiao Cui, and Lei Zhang. "Monitoring of Qinghai–Tibet plateau hydrothermal circulation with heat pulse." In 2013 International Conference on Biomedical Engineering and Environmental Engineering. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/icbeee130641.

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Wang, Ge, and Lin Han. "Progress of Research on Qinghai-Tibet Plateau Satellite Remote Sensing." In 2012 2nd International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE). IEEE, 2012. http://dx.doi.org/10.1109/rsete.2012.6260667.

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Xie, Zhenhong, Qigang Jiang, and Hao Wu. "Carbon cycle review of the permafrost in Qinghai-Tibet Plateau." In 2011 19th International Conference on Geoinformatics. IEEE, 2011. http://dx.doi.org/10.1109/geoinformatics.2011.5980869.

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CaiJi, Zhuoma, Guo Luo, Dayuan Xue, and Yuhuan Du. "The Spatial Analysis of Monastery on the Qinghai-Tibet Plateau." In 2015 Information Technology and Mechatronics Engineering Conference. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/itoec-15.2015.9.

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Zhang, Xuefei, Yixian Tang, Hong Zhang, Chao Wang, Bo Zhang, and Fan Wu. "Permafrost Subsidence Monitoring of Qinghai-Tibet Plateau using Sentinel-1 Data." In 2019 SAR in Big Data Era (BIGSARDATA). IEEE, 2019. http://dx.doi.org/10.1109/bigsardata.2019.8858504.

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Tang, Panpan, Zhen Li, Jianmin Zhou, Bangsen Tian, and Juan Xu. "Coherence based analysis of distributed scatterers in the Qinghai-Tibet Plateau." In IGARSS 2013 - 2013 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2013. http://dx.doi.org/10.1109/igarss.2013.6723034.

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Yan, J. P. "Research on land degradation and management countermeasures in Qinghai-Tibet plateau." In The 2015 International Conference on Sustainable Development (ICSD2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814749916_0048.

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