Thematische Bibliographien / Plaines – Chine

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Auswahl der wissenschaftlichen Literatur zum Thema „Plaines – Chine“

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Veröffentlicht am 29. Juni 2021

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Zeitschriftenartikel zum Thema "Plaines – Chine"

Godard, Alain. „Des Hautes terres d'Asie centrale aux plateaux et aux plaines alluviales de Chine“. Annales de Géographie 101, Nr. 566 (1992): 369–70. http://dx.doi.org/10.3406/geo.1992.21099.

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Mottet, Éric. „Un Plan Nord comme outil géopolitique en RDP lao : le cas du développement des terres et des ressources naturelles de Luang Namtha“. Cahiers de géographie du Québec 57, Nr. 160 (06.08.2013): 115–40. http://dx.doi.org/10.7202/1017807ar.

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Résumé Dans un contexte d’ouverture et d’intégration régionale, la province de Luang Namtha cristallise l’ensemble des défis auxquels le Laos doit faire face aujourd’hui. En effet, cette région connaît depuis une dizaine d’années des changements importants liés à la construction du corridor nord-sud reliant la Chine à la Thaïlande. Ce Plan Nord, piloté par la Banque asiatique de développement et la Chine, constitue la colonne vertébrale du quadrangle économique, espace transfrontalier de croissance. Pour le gouvernement lao, l’objectif est, d’une part, de transformer ces marges montagneuses en vaste espace de libre-échange et, d’autre part, de consolider l’existence de l’État-nation moderne, à travers le transfert des populations montagnardes vers les plaines afin de mieux contrôler le territoire et ses ressources. En réalité, ce corridor économique constitue un nouvel axe de pénétration pour les investissements laotiens et étrangers privilégiant la mise en exploitation des terres, l’extraction des ressources minières et la production d’hydroélectricité. Le territoire de la province de Luang Namtha et les populations qui y vivent, contraintes de s’adapter aux changements radicaux provoqués par la nouvelle stratégie du pouvoir central, subissent des transformations en profondeur mettant en relief des conflits autour d’enjeux sociaux et environnementaux.

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Yu, Zhen, Xiaobin Jin, Lijuan Miao und Xuhong Yang. „A historical reconstruction of cropland in China from 1900 to 2016“. Earth System Science Data 13, Nr. 7 (06.07.2021): 3203–18. http://dx.doi.org/10.5194/essd-13-3203-2021.

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Abstract. A spatially explicit cropland distribution time-series dataset is the basis for the accurate assessment of biogeochemical processes in terrestrial ecosystems and their feedback to the climate system; however, this type of dataset is lacking in China. Existing cropland maps have a coarse resolution, are intermittently covered, or the data are inconsistent. We reconstructed a continuously covered cropland distribution dataset in China spanning from 1900 to 2016 by assimilating multiple data sources. In total, national cropland acreage expanded from 77.72 Mha in 1900 to a peak of 151.00 Mha in 1979, but it consistently decreased thereafter to 134.92 Mha in 2016. The cropland was primarily distributed in three historically cultivated plains in China: the Sichuan Plain, the Northern China Plain, and the Northeast China Plain. Cropland abandonment was approximately 43.12 Mha: it was mainly concentrated in the Northern China Plain and the Sichuan Plain and occurred during the 1990–2010 period. Cropland expansion was over 74.37 Mha: it was primarily found in the southeast, northern central, and northeast regions of China and occurred before 1950. In comparison, the national total and spatial distribution of cropland in the Food and Agriculture Organization (FAO) of the United Nations and the History Database of the Global Environment (HYDE) were distorted during the period from 1960 to 1980 due to the biased signal from the Chinese Agricultural Yearbook. We advocate that newly reconstructed cropland data, in which the bias has been corrected, should be used as the updated data for regional and global assessments, such as greenhouse gas emission accounting studies and food production simulations. The cropland dataset is available via an open-data repository (https://doi.org/10.6084/m9.figshare.13356680; Yu et al., 2020).

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Zhou, Pengchong, Shaobo Wang, Liangliang Guo, Ying Shen, Huifang Han und Tangyuan Ning. „Effects of subsoiling stage on summer maize water use efficiency and yield in North China Plains“. Plant, Soil and Environment 65, No. 11 (02.12.2019): 556–62. http://dx.doi.org/10.17221/353/2019-pse.

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Aiming at the problems of shallow effective soil layering and low utilization rate of precipitation in the North China Plain. The effects of different subsoiling stages on soil physical properties and water use in winter wheat/summer maize fields were studied. Three kinds of tillage treatments were studied: rotary tillage to a depth of 15 cm in October and no-tillage in June (RT), rotary tillage to a depth of 15 cm in October and subsoiling to 35 cm in June (ST-J), subsoiling to a depth of 35 cm in October and no-tillage in June (ST-O). Changes in soil bulk density and soil compaction were consistent over two seasons. Compared to RT, in the 10–50 cm soil layer, ST-J and ST-O decreased the average soil bulk density by 6.18% and 5.66%, respectively, and the soil compaction in the 10–60 cm layer was reduced by 17.89% and 20.50%. ST was improved soil structure and increased the water content of deep soil. The water use efficiency (WUE) of ST-J and ST-O increased by 4.73% and 14.83%, respectively, and the maize yields by 2.90% and 11.35%, respectively. Considering the WUE and maize yields, it was considered that ST-O is more suitable for tillage in the North China Plain.

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Trombert, Éric. „The Karez Concept in Ancient Chinese Sources Myth or Reality?“ T'oung Pao 94, Nr. 1 (2008): 115–50. http://dx.doi.org/10.1163/008254308x367031.

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AbstractThe karez (or qanât) is an ancient kind of underground waterworks that can be found still working from Iran to Morocco and, in present-day China, in Xinjiang (mostly in the Turfan Basin). In western countries and in the Middle East, historians generally consider the Iranian world as the core area of karez since the Achaemenid era (550-330 BC). In China, however, the prevailing theory concerning the origins of the karez technology in Xinjiang is that it was developed elsewhere in China's Central Plain and then imported with some minor modifications. This article intends to demonstrate that this was not the case and that the technique was unknown in the western regions at the height of the Han Chinese presence in Xinjiang in the late 8th century. This conclusion is confirmed by examining the historical process of the development of the karez technique as it is known through Qing sources. It started no sooner than the early 19th century and was related to the Qing colonial enterprise in the western regions. Le karez (ou qanât) est un type ancien d'aménagement hydraulique souterrain dont on trouve encore des exemples en activité de l'Iran au Maroc, et, en Chine aujourd'hui, au Xinjiang (principalement dans le bassin de Turfan). Dans les pays occidentaux et au Moyen Orient les historiens considèrent généralement le monde iranien comme la zone centrale des karez depuis l'époque achéménide (550-330 av. J.-C.). En Chine, en revanche, la théorie prédominante concernant l'origine de la technique des karez au Xinjiang veut que celle-ci ait été développée ailleurs dans la Plaine Centrale, pour être ensuite importée avec quelques modifications mineures. Le présent article entend démontrer que tel n'a pas été le cas et que cette technique était inconnue dans les régions occidentales à l'apogée de la présence chinoise au Xinjiang, à la fin du VIIIe siècle. Cette conclusion est confirmée par l'examen du processus historique de développement de la technique des karez telle qu'on la connaît à travers les sources d'époque Qing. Elle n'est pas apparue avant le début du XIXe siècle et doit être mise en relation avec l'entreprise coloniale des Qing dans les régions occidentales.

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He, Huizhong, und Fuqing Zhang. „Diurnal Variations of Warm-Season Precipitation over Northern China“. Monthly Weather Review 138, Nr. 4 (01.04.2010): 1017–25. http://dx.doi.org/10.1175/2010mwr3356.1.

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Abstract This study examines the diurnal variations of the warm-season precipitation over northern China using the high-resolution precipitation products obtained from the Climate Prediction Center’s morphing technique (CMORPH) during May–August of 2003–09. The areas of focus are the Yanshan–Taihangshan Mountain ranges along the east peripheries of the Loess and Inner Mongolian Plateaus and the adjacent North China Plains. It is found that the averaged peak in local precipitation begins early in the afternoon near the top of the mountain ranges and propagates downslope and southeastward at a speed of ∼13 m s−1. The peak reaches the central North China Plains around midnight and the early morning hours resulting in a broad area of nocturnal precipitation maxima over the plains. The diurnal precipitation peak (minimum) is closely collocated with the upward (downward) branch of a mountain–plains solenoid (MPS) circulation. Both the MPS and a low-level southwesterly nocturnal jet are likely to be jointly responsible for the nighttime precipitation maxima over the plains.

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Chen, Zhongyuan, Yongqiang Zong, Zhanghua Wang, Hui Wang und Jing Chen. „Migration patterns of Neolithic settlements on the abandoned Yellow and Yangtze River deltas of China“. Quaternary Research 70, Nr. 2 (September 2008): 301–14. http://dx.doi.org/10.1016/j.yqres.2008.03.011.

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AbstractArchaeological records of the Neolithic settlements on the eastern China coast between 35°N and 30°N, an area covering the abandoned Yellow River and the Yangtze River delta plains, reveal that Neolithic people moved from the Yellow River basin onto the northern coast for fishing, hunting and dry-land agriculture ~ 7000 yr ago. Marine transgression interrupted their activities on the low-lying (2–5 m in elevation) coastal wetlands between 6000 and 5000 yr ago, after which they reclaimed their land near the river mouths. Their migration routes on the southern Yangtze delta plain indicate another scenario: early Neolithic communities moved onto the plain for wet-rice cultivation. Despite relative sea-level rise from 7000 to 4000 yr ago, a large number of settlements were established on the lowlands between the eastern Chenier Ridges and the western Taihu Lake depression. The Chenier Ridges, with ~ 1.0 m higher topography than the adjacent coastal area, played a role in sheltering the Neolithic people. Subsequently, settlements waned considerably, possibly due to further marine inundation combined with cold climate. The present study shows that migration patterns of the Neolithic settlements are closely associated with a gradually rising sea level between 7000 and 4000 yr ago.

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Zhou, Yan, Ming Luo und Zhong Ke Bai. „Land Reclamation Zoning and Evaluation of Land Suitability in Mining Areas in China“. Advanced Materials Research 726-731 (August 2013): 4751–59. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.4751.

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Different types of reclaimed land require different land reclamation techniques. This study uses previous research to divide the mining areas in China into 10 land reclamation zones according to the climatic zones, soil conditions and the distribution of mines. The country is divided into the following zones: the northeast plains and hills region, the Huang-Huai-Hai Plain region, the Yangtze River Basin region, the southwest mountainous and hilly region, the central mountainous and hilly region, the southeast coast hilly region, the northwest arid semi-arid region, the Loess Plateau region, the Inner Mongolian grasslands region, and the Tibetan Plateau region. The subsided, excavated and occupied lands in the mining areas are divided into two categories, suitable for reclamation and unsuitable for reclamation, based on geological and geomorphological characteristics, climate, hydrology, soil conditions, and social demand. In addition, the suitability of waste land in each area is evaluated. This study provides a basis for waste land reclamation in Chinas mining areas.

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Su, Tianning, Zhanqing Li und Ralph Kahn. „Relationships between the planetary boundary layer height and surface pollutants derived from lidar observations over China: regional pattern and influencing factors“. Atmospheric Chemistry and Physics 18, Nr. 21 (07.11.2018): 15921–35. http://dx.doi.org/10.5194/acp-18-15921-2018.

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Abstract. The frequent occurrence of severe air pollution episodes in China has been a great concern and thus the focus of intensive studies. Planetary boundary layer height (PBLH) is a key factor in the vertical mixing and dilution of near-surface pollutants. However, the relationship between PBLH and surface pollutants, especially particulate matter (PM) concentration across China, is not yet well understood. We investigate this issue at ∼1600 surface stations using PBLH derived from space-borne and ground-based lidar, and discuss the influence of topography and meteorological variables on the PBLH–PM relationship. Albeit the PBLH–PM correlations are roughly negative for most cases, their magnitude, significance, and even sign vary considerably with location, season, and meteorological conditions. Weak or even uncorrelated PBLH–PM relationships are found over clean regions (e.g., Pearl River Delta), whereas nonlinearly negative responses of PM to PBLH evolution are found over polluted regions (e.g., North China Plain). Relatively strong PBLH–PM interactions are found when the PBLH is shallow and PM concentration is high, which typically corresponds to wintertime cases. Correlations are much weaker over the highlands than the plains regions, which may be associated with lighter pollution loading at higher elevations and contributions from mountain breezes. The influence of horizontal transport on surface PM is considered as well, manifested as a negative correlation between surface PM and wind speed over the whole nation. Strong wind with clean upwind air plays a dominant role in removing pollutants, and leads to obscure PBLH–PM relationships. A ventilation rate is used to jointly consider horizontal and vertical dispersion, which has the largest impact on surface pollutant accumulation over the North China Plain. As such, this study contributes to improved understanding of aerosol–planetary boundary layer (PBL) interactions and thus our ability to forecast surface air pollution.

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Wang, Mei, Yu, Li, Meng und Hu. „Anthropogenic Effects on Hydrogeochemical Characterization of the Shallow Groundwater in an Arid Irrigated Plain in Northwestern China“. Water 11, Nr. 11 (26.10.2019): 2247. http://dx.doi.org/10.3390/w11112247.

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Many irrigated plains in arid and semi-arid regions have groundwater quality issues due to both intensive human activity and natural processes. Comprehensive studies are urgently needed to explore hydrogeochemical evolutions, investigate possible pollution sources, and understand the controls on groundwater compositions in such regions. Here, we combine geostatistical techniques and hydrogeochemical assessments to characterize groundwater quality over time in the Yinchuan Plain (a typical irrigated plain in China), using 12 physicochemical variables derived from sampling in 600 and 602 wells in 2004 and 2014, respectively. Our results show that groundwater-rock interactions and evaporation are the key natural factors controlling groundwater compositions. Hydrogeochemical water types in both 2004 and 2014 were Ca-HCO3, Na-Cl, and mixed Ca·Mg-Cl. Along with the hydrogeochemical compositions, we used ionic ratios and the saturation index to delineate mineral solution reactions and weathering processes. Dissolution of gypsum, halite, fluorite, and mirabilite, along with silicate weathering and cation exchange, were identified in the study area. Our results indicated rising ion concentrations in groundwater, which could be the result of anthropogenic influences. Increasing total hardness and nitrates over the study period were most likely caused by agricultural activity and the discharge of waste water from human residential areas.

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Dissertationen zum Thema "Plaines – Chine"

Xue, Chaoyang. „Les sources de HONO atmosphérique rural et leur impact sur la qualité de l'air régional dans la Plaine de Chine du Nord“. Electronic Thesis or Diss., Orléans, 2020. http://www.theses.fr/2020ORLE3107.

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La pollution de l'air est toujours un problème environnemental qui doit être résolu de toute urgence dans la Plaine de Chine du Nord (PCN). Dans le but d'explorer la formation de l’acide nitreux (HONO) et son impact sur la qualité de l'air régional dans la PCN, le développement et l'évaluation systématique d'instruments pour mesurer la concentration de HONO atmosphérique et son flux d'émission du sol ont été réalisés. Sur la base de mesures sur le terrain, un modèle 3D de chimie-transport (le système communautaire de modélisation de la qualité de l'air à plusieurs échelles : CMAQ, de l’EPA) et un modèle de boîte (0D) de mécanisme chimique (Master Chemical Mechanism : MCM) ont été utilisés pour explorer le bilan de HONO et son impact sur la pollution atmosphérique régionale, par exemple la pollution estivale à l'ozone (O3) et la pollution par la brume hivernale. Nous avons constaté que le sol agricole était une source importante de HONO avec un impact significatif sur la pollution régionale à l'ozone en été. Un nouveau mécanisme d'émission de HONO du sol lié à la nitrification a été proposé. HONO joue également un rôle important dans la capacité oxydante de l’atmosphère et la détérioration de la qualité de l'air régional en hiver
Air pollution is still an environmental problem that urgently needs to be solved in the North China Plain (NCP). With the aim to explore nitrous acid (HONO) formation and its impact on regional air quality in the NCP, the development and systematic assessment of instruments to measure atmospheric HONO concentration and soil HONO emission flux were realized. Based on field measurements, a 3D chemistry-transport model (the Community Multiscale Air Quality Modeling System, CMAQ) and a box (0D) model (Master Chemical Mechanism, MCM) were used to explore the HONO budget and its impact on regional air pollution, e.g., summer ozone (O3) pollution and winter haze pollution. We found that agricultural soil was an important HONO source with a significant impact on regional O3 pollution in the summertime. A new soil HONO emission mechanism related to nitrification was proposed. HONO also plays an important role in atmospheric oxidizing capacity and deteriorating regional air quality in the wintertime

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Allès, Élisabeth. „Des chinois musulmans dans la plaine centrale : une approche anthropologique des hui du henan“. Paris, EHESS, 1998. http://www.theses.fr/1998EHESA030.

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Que signifie aujourd'hui le fait d'etre hui et quelles sont les relations entre han et hui ? quelles sont les representations que les hui se font d'eux-memes et des autres, les pratiques sociales de cette double identite musulmane et chinoise ? quel est ici le role de la religion et qu'en est-il de cet islam qui accepte en son sein des mosquees feminines ? de cette identite hui, on a propose de nombreuses interpretations. Les hui sont-ils un groupe confronte au dilemme entre assimilation et antagonisme ? ou faut-il parler de syncretisme ? toute description qui immobiliserait les individus et les groupes dans une identite fixe ne permettrait pas de comprendre des realites qui sont beaucoup plus fluides. Nous avons centre notre recherche sur le henan, ou les hui, bien que minoritaires sont pres d'un million. Les enquetes effectuees sur une longue periode et a des moments differents constituent la base de notre reflexion. Dans ces enquetes, qu'il s'agisse de la doctrine ou du rituel, nous n'avons rien rencontre qui corresponde a la definition courante du syncretisme. Il n'y a jamais melange mais juxtaposition, et dans l'esprit des interesses, celle-ci ne semble pas faire probleme ; la ou l'observateur etranger s'attendrait a trouver des tensions, la coexistence des elements disparates parait toute naturelle. Comme dans d'autres contextes et d'autres regions, par exemple au nepal ou en inde, la double reference culturelle est utilisee differemment en fonction des situations. Quant a la place des hui dans la societe chinoise, voici une communaute musulmane qui n'a jamais connu rien d'autre qu'un statut minoritaire, et qui, tout au long de son histoire, semble s'en etre parfaitement accomodee. Bien mieux, les hui se sont toujours percus comme partie integrante de la societe chinoise et ils ont toujours su lier leur cause a celle des mouvements qui la parcouraient en profondeur
What means today being a hui ? what are the relations between han and hui. How do the hui conceive themselves and the others? what are the social practices of this double identity, both muslim and chinese ? what is here the role of religion, and what are we think of that islam which accepts within itself women's mosques ? many interpretations of this hui identity have been proposed. Are the hui a group confronted with the dilemna between assimilation and antagonism ? or are we to talk about syncretism ? any description which would immobilize individuals and groups into a fixed identity would prevent us from understanding realities which are much more instable. We have concentrated our investigations on the henan where the hui, though a minority, are nearly one million. Fieldwork made over a long period and at various points of time provides the materials for our reflexion. In our inquiries, whether about doctrine or about ritual, we never met anything corresponding to the classical definition of syncretism. There is never mixing, but always juxtaposition, and in the people's mind, the latter doesn't seem to make any difficulty : where observers from abroad would expect to find tensions, coexistence of dissimilar elements seems altogether natural. As happens in other contexts or regions, for instance in nepal or india, the double cultural reference is used in different ways according to situations. As to the place the hui hold within chinese society, here is a community which has always been a minority group and has during its whole history put up with that status. Moreover, they always considered themselves as an integral part of chinese society and knew how to bind their cause to that of those movements which agitated it in its depth

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Sebillaud, Pauline. „La distribution spatiale de l’habitat en Chine dans la plaine Centrale à la transition entre le Néolithique et l’âge du Bronze (env. 2500-1050 av. N. è. )“. Paris, EPHE, 2014. http://www.theses.fr/2014EPHE4031.

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L’étude de la distribution spatiale de l’habitat n’avait jamais été engagée sur la période comprise, en Chine, comme la transition la fin du Néolithique et le début de l’âge du Bronze, périodes habituellement étudiées séparément. À partir des rapports de fouilles et des atlas archéologiques disponibles, nous mettons ici en lumière les variations de l’occupation de l’espace et les mutations des dynamiques du peuplement. Le premier chapitre, après avoir fait le point sur les recherches antérieures, a pour objectif d’exposer le contexte historique, géographique et méthodologique (base de données, Système d’Information Géographique) de cette étude. Le deuxième chapitre met en œuvre une analyse statistique et spatiale de la distribution de l’habitat dans toute la plaine Centrale afin de reconstituer les réseaux d’échanges qui ont structuré l’occupation humaine. Dans le troisième chapitre, l’analyse est menée à l’échelle régionale et permet d’étudier les variations de densité de l’occupation et l’évolution de la démographie. Enfin, le quatrième chapitre constitue une mise en perspective des recherches sur les dynamiques du peuplement menant à une nouvelle définition de la transition entre la fin du Néolithique et le début de l’âge du Bronze dans la plaine Centrale. Nous proposons des scénarios nouveaux pour comprendre la temporalité multi-rythmique et redéfinir les caractéristiques principales de cette période de transition entre la fin du Néolithique et le début de l’âge du Bronze
Settlement spatial organization in China has yet to be intensively investigated for the critical transition between the end of the Neolithic to the beginning of the Bronze Age, two periods which usually constitute separate fields in Chinese academia. In order to conduct a thorough study of this transition, this dissertation synthesizes the vast and growing corpus of excavation and mapping data of archaeological sites in order to highlight variations of spatial occupation and changes of population dynamics. This includes a comprehensive definition of the chronological and geographical parameters of these periods that integrates previous research with a systematic GIS database. A statistical and spatial analysis of settlement distribution within the entire Central Plains shows the exchanges network that structured the human occupation. A subsequent regional-scale analysis allows us to analyze spatial occupation density and demographic evolution. These analyses help to build new paradigms for understanding multi-rhythm temporality in early China and redefine the main characteristics of the significant transition period between the end of the Neolithic and the Early Bronze Age

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Spicq, Delphine Amélie. „La politique de l'eau et l'hydraulique urbaine dans la plaine du Nord de la Chine : le cas de Tianjin, 1900-1949“. Paris 7, 2003. http://www.theses.fr/2003PA070024.

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Cette thèse retrace la création et le développement du réseau d'adduction d'eau dans la ville de Tianjin et analyse l'impact de la croissance démographique et économique sur le niveau de ressources en eau. L'arrivée des Occidentaux à Tianjin à la fin du XIXe siècle et leur installation à long terme dans la ville entraînent la création d'un système moderne d'adduction. Une première société financée par les étrangers est créée dans la concession anglaise en 1897. En 1903, une seconde société apparaît dans la cité chinoise qui approvisionne les quartiers chinois et le reste des concessions. Ces deux sociétés connaissent un développement continu entre 1900-1910. Pendant les années 1920-1930, leur activité croît de façon soutenue malgré les incessants combats que connaît la région. L'occupation japonaise entre 1937 et 1945, l'administration de la ville par le parti nationaliste qui suit et la guerre civile qui sévit entre 1946 et 1949 entraînent une détérioration du système d'adduction
This Ph. D. Traces the creation and the development of modern water supply in the city of Tianjin and analyses the impact of demography and economic growth on the water resources. The creation of a modem water supply in Tianjin follows the arrival and the settlement of Foreigners in Tianjin at the end the 19th Century. The first Waterworks is created in 1897 in the British Concession. A second Waterworks is founded in 1903 that supplies the Chinese city and the other Foreign Concessions. Both companies' activity growths during the 1900s and up untill the 1930s, at a lower rate, however, during the 20s and 30s because of the warfare that raged Tannin region during that period. The Japanese occupation and the GMD's control of the tow and the civil from 19461eave the city modem water supply in a state of neglect and ineffectiveness

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Barning, Roland. „Economic evaluation of nitrogen application in the North China Plain“. [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:100-opus-2795.

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Li, Jun. „Détection de la transition démographique agricole en Chine : sur le plateau de Lœss et dans la plaine du fleuve Yangszé“. Thesis, Paris, EPHE, 2015. http://www.theses.fr/2015EPHE3029/document.

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Cette thèse étudie le processus du changement démographique pendant la transition des chasseurs-collecteurs aux agriculteurs sur le plateau de Lœss, qui est la région de l’origine du millet cultivé, et dans la plaine du fleuve Yangszé, qui est la région de l’origine du riz cultivé en Chine. Ce travail de recherche doctoral collecte et analyse les données paléoanthropologiques des nécropoles des deux régions en Chine, et un signal similaire est détecté. Les données archéologiques, comme la densité des sites et la densité des dates au radiocarbone, sont aussi collectées et analysées, pour vérifier ce signal démographique en Chine. Suit à notre étude, nous représentons le contexte environnemental du signal de la TDA, incluant le changement climatique et la variation du paysage. L’amélioration de l’environnement naturel pendant la transition démographique est évidente, mais elle n’est pas une cause décisive de la TDA. Ensuite, nous représentons le changement de la stratégie de subsistance de la population du Paléolithique supérieur au Néolithique dans les deux régions, et son lien de causalité réciproque avec la transition démographique. Les données archéologiques montrent que la transition démographique et le changement de la stratégie de subsistance sont suivis de façon évidente par une modification de l’habitation, et l’arrangement des villages s'est modifié graduellement aussi au fil du temps. Celles-là indiquent probablement que l’augmentation de la taille de population est une cause importante de l’évolution sociale
In this thesis, we study the process of the demographic change during the transition from the hunters-gatherers to the farmers on the Loess Plateau, which is the region of the origin of the cultivated millet, and in the Yangtze Plain, which is the region of the origin of the cultivated rice, in China. By collecting and analyzing the paleoanthropological data from the cemeteries of prehistorical hunters-gatherers and farmers of these two regions in China, we detect a similar signal of the ADT. This signal is also confirmed by the archaeological data, such as the density of the archaeological sites and the density of the radiocarbon dates. We represent the environmental context of the signal demographic in the following study, including the climatic change and the variation of le landscape. The improvement of the natural environment during the demographic transition is obvious, but it seems that this improvement is not a factor decisive of the ADT. Then we represent the change of subsistence strategy of the population from upper Paleolithic to Neolithic in the two regions, and its relationship of reciprocal causation with the demographic transition. The archaeological data indicate that the demographic transition and the change of the subsistence strategy were evidently followed by the modification of the habitation, and the arrangement of the villages have also varied overtime. These information probably suggest that the augmentation of the size of population is one of the main causes of the social evolution

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Yang, Xiao, und 杨潇. „Gravity survey for buried geological structure of the Chengdu Plain, SW China“. Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B4784985X.

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The 2008 Wenchuan Ms 8.0 earthquake resulted in huge casualty and heavy strike to the local economy. Consequently, Chengdu Plain, with dense population and short distance to the highly active Longmen Shan fault zone needs an evaluation of the risk of earthquake as soon as possible. As part of a big project, we conducted mapping of gravity anomaly of Chengdu Plain in order to locate the possible buried fault zones beneath the Chengdu Plain. In this project a total of 640 km2 area was surveyed, and 230 relative gravity data have been collected along six profiles with each extending to about 70 km across the plain area. 140 more spots were measured around the city area in order to have a more precise delineation of geological structures beneath the city region. The Bouguer gravity anomaly has been calculated to delineate the large-scale anomaly trend on the surface. Data analyses presented that a coincidence between the sedimentation thickness and the residual gravity anomaly. The minimum residual anomalies suggested locations where depo-centers used to located (Pengzhou-Chongzhou, across Xinsheng County). The long-wave trend of Bouguer anomaly which reflects the deeply buried Moho discontinuity presented a northwest dipping trend of this density boundary underneath the plain region.
published_or_final_version
Earth Sciences
Master
Master of Philosophy

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Luo, Chia-li. „Coastal culture and religion in early China a study through comparison with the central plain region /“. online access from Digital Dissertation Consortium access full-text, 1999. http://libweb.cityu.edu.hk/cgi-bin/er/db/ddcdiss.pl?9950782.

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Poon, Wai-yee Emily, und 潘慧儀. „The effectiveness of plain language in the translation of statutes andjudgments“. Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B45015648.

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Hong, Fei S. M. Massachusetts Institute of Technology. „Agri-industrial park : strategies for transformation of Linpan countryside of Chengdu plain, China“. Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91300.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Architecture, June 2014.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis. "June 2014."
Includes bibliographical references (pages 82-83).
After 30 years' fast economic growth and urbanization, the gap between city and village has become one of the biggest challenges of today's China. Large countryside area with distinctive landscape is dying because of poor living conditions and fewer job opportunities. At the same time, the frenzy of Industry Park and Office Park developments, which started in the 1990s, is taking vast farmland from countryside, especially in peri-urban area. The process of land acquisition removes all the famers and existing agriculture elements. Millions of farmers lose their land for life support every year in China. Linpan is a typical agriculture landscape in Sichuan Plain, China. It is charactered by scattered residential settlements enclosed by trees and bamboos distributed in large farmland area with dense irrigation system, which has a history of two thousand years. When Chengdu quickly becomes one of the largest industry cities of West China after 1980s, more than 100km² of Linpan area has been transferred to various of industry parks and office parks and the number is still growing. By taking a typical linpan land as a testing site, the thesis proposes a mutual-beneficial cooperation mode of agriculture and selected industry development. New programs are plugged in within minimum effect on agriculture system. Certain degree of agriculture is maintained till the end of development process. When factories and offices enjoy the benefits from the in-site agriculture production and beauty of landscape, new possiblities of Chinese New Countryside is appearing.
by Fei Hong.
S.M.

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