dans le bassin-versant du Jialing Jiang. L'érosion des sols progresse très rapidement et détruit les sols cultivés. L'afforestation et les travaux hydrauliques mis en oeuvre se limitent à retarder l'érosion. - (CG)
The Lushan dilemma: Pleistocene glaciation south of the ChangJiang (Yangtze River)
Les vallées, bassins et sédiments du Lushan ont été tout d'abord attribués à l'action des glaciers pléistocènes par Lee en 1933, suivi par un large courant de pensée encore répandu. L'A. remet en cause l'origine glaciaire des éléments morphologiques
This paper studies the change of streamflow and the impact of climatic variability conditions on regional hydrological cycle in the headwater of the Tarim River Basin. This study investigates possible causes of observed trends in streamflow
Changing features of extreme precipitation in the Yangtze River basin during 1961-2002
Années 1961-2002 ; Anomalie climatique ; Bassin-versant ; Changement global ; Chine ; Crue ; Précipitation ; Réchauffement climatique ; Tendance du climat ; Yangtze
China ; Climatic anomaly ; Climatic trend ; Climatic warming ; Flood ; Global change ; Precipitation ; Watershed
the changes of the extreme precipitation in different parts of the Yangtze River basin, showing the possible regional responses to global climatic changes; and to detect the periods of extreme precipitation series in the upper, middle and lower Yangtze River
The total precipitation of the highest 1 day, 3 day, 5 day, 7 day precipitation amount in the Yangtze River basin was analyzed with the help of linear trend analysis and continuous wavelet transform method. The aims of this paper are to demonstrate
basin respectively with the help of continuous wavelet transform method.
Aménagement hydraulique ; Barrage ; Chine ; Cours d'eau ; Crue ; Equipement ; Gestion de l'eau ; Impact ; Voie de communication ; Yangzi Jiang
China ; Communication network ; Dam ; Facilities ; Flood ; Hydraulic works ; Impact ; Stream ; Water management ; Yangzi Jiang
avec les risques que font peser les charges en sédiments qui peuvent amener un colmatage rapide du bassin. Adapté à la dimension du pays et à l'énormité de ses besoins, il devrait être l'outil d'une gestion rationnelle des ressources et de prévention
Groundwater quality and land use change in a typical karst agricultural region
Années 1980 ; Années 1990 ; Années 2000 ; Bassin-versant ; Chine ; Eau souterraine ; Karst ; Qualité de l'eau ; Utilisation agricole du sol ; Utilisation du sol ; Variation spatiale ; Yunnan
. probe into the law and the reason of its space-time change of the groundwater quality over the past 22 years. The results show a dynamic relation between the groundwater quality change and the land use change.
Agriculture ; Andes ; Applied ecology ; Bangladesh ; China ; Climatic change ; Drinking water ; Ecosystem ; Ecuador ; Florida ; Food security ; Germany ; Governance ; Health ; Irrigation ; Legislation ; Peru ; Political ecology ; Rhine ; River
; Scientific publication ; South Africa ; Spain ; United Kingdom ; United States of America ; Water ; Water management ; Water pollution ; Water quality ; Water resources ; Watershed ; Zhu Jiang
fix in Spain ; 3-Can participation change the geography of water? lessons from South Africa ; 4-Water security and adaptive management in the arid Americas ; 5-River federalism ; 6-Influence of latrine proximity and type on tubewell water quality
and diarrheal disease in Bangladesh ; 7-Optical water quality of inland waters : a landscape perspective ; 8-The link between polycentrism and adaptive capacity in river basin governance systems : insights from the river Rhine and the Zhujiang (Pearl river
) basin ; 9-Explaining rapid transitions in the practice of flood risk management ; 10-The participatory vulnerability scoping diagram : deliberative risk ranking for community water systems ;11-Water resources science, policy, and politics for the Florida
Everglades ; 12-New geographies of water and climate change in Peru : coupled natural and social transformations in the Santa river watershed ; 13-Effects of land-use change on water in Andean Páramo grassland soils ; 14-Agricultural virtual water trade
and water footprint of U.S. States ; 15-Farming for water quality : balancing food security and nitrate pollution in UK river basins.
Aménagement hydraulique ; Bassin-versant ; Chine ; Développement durable ; Erosion des sols ; Hubei ; Inondation ; Lac artificiel ; Thematic Mapper ; Télédétection ; Utilisation agricole du sol ; Utilisation du sol
In this study the arable land changes in 2 counties (Zigui and Xingshan), in the west of Hubei Province, are investigated. The AA. use the statistical data from the officially published statistical books to study these changes in the 2 counties
during the past 50 years since 1949. The objectives of this research are to see how the arable land use changed during the past half century and to discuss the criticality of sustainable utilization of arable land in these 2 counties.
Bassin-versant ; Chine ; Géochimie ; Karst ; Lithologie ; Propriétés du sol ; Utilisation agricole du sol ; Utilisation du sol ; Yunnan
In this study the AA. analyzed the land use changes from 1982 to 2003, and assessed the effects of land use changes on pH value, organic matter, total N, total P, total K, available N, available P and available K in soil of Xiaojiang watershed
in Yunnan Province, Southwest China. Also, with the change in land use and management measures of soil, the modifications in soil properties which developed from carbonate rocks were more sensitive than those in the soil developed from sandstone.
Analyse statistique ; Années 2000-2010 ; Bassin-versant ; Changement climatique ; Chine ; Corrélation ; Distribution spatiale ; Huanghe ; Indice de végétation ; Précipitation ; Série chronologique ; Température ; Variabilité interannuelle
China ; Climatic change ; Correlation ; Huang He ; Interannual variability ; Precipitation ; Spatial distribution ; Statistical analysis ; Temperature ; Time series ; Vegetation ; Vegetation index ; Watershed
cover data and information on hydropower development were then added to analyze the factors influencing the inter-annual changes in vegetation in the Longyangxia-Liujiaxia (Long-Liu) basin of the Yellow River. It is highlighted that more than 70
JIANG, W.[b1 b2]
[b2] Key Lab. of Environmental Change and Natural Disaster, Normal Univ., Beijing, Chine
the significant correlation areas mainly concentrated in the 1990s; the variations in the trend strength of ARR and NAO were consistent; the abrupt change of NAO was also temporally consistent with that of ARR, which exerted impact on the Aksu River Basin (ARB
The relationship between North Atlantic Oscillations (NAO) and Aksu River Runoff (ARR) was investigated by using the wavelet transform (WT), cross wavelet transform (CWT), corelation and linear trend analyses, and abrupt change test. The main
China ; Flood ; Fluvial hydrology ; Mathematical model ; River basin ; Sichuan ; Yangzi Jiang
and October often give rise to catastrophic floods in the basin of the Yangtze, a problem to which much attention is paid in Chinese hydrological literature, albeit mostly by way of the descriptive method, rather than theoretical analysis - which is very much
lacking. This paper thus presents results obtained where a different approach is taken to the analysis of flood phenomena in the basin of Asia's longest river. The methodology utilized is based on mathematical and statistical calculations widely applied
The characteristics of water vapor transport (WVT) over China and its relationship with precipitation anomalies in the Yangtze River Basin (YRB) are analyzed by using the upper-air station data in China and ECMWF reanalysis data (developed