Studying the change of resources consumption and eco-environmental carrying capacity are of importance to the sustainable development of urbanization. Based on the China's economic and social statistical data from 1950 to 2006, the ecological
footprint, ecological footprint intensity, ecological deficit and surplus, and eco-environment quality comprehensive index are calculated, the correlation between urbanization and eco-environmental change is analyzed and the eco-environmental guarantee
The changing regional distribution of grain production in China in the 21st century
The AA. focus on data from 2000 to 2003 based on county statistics in order to examine the spatial pattern of grain output and its changes over the past 10 years. Subsequently, the AA. try to answer the question of what these changes in distribution
Carbone ; Changement global ; Chine ; Cycle du carbone ; Ecosystème ; Géochimie ; Matière organique ; Propriétés du sol ; Sol ; Système d'information géographique ; Variation spatiale
Carbon ; Carbon cycle ; China ; Ecosystem ; Geochemistry ; Geographical information system ; Global change ; Organic materials ; Soil ; Soil properties ; Spatial variation
of soil organic carbon reservoir on the global change.
This paper focuses on the operational method for rice planting area estimation, in which TM data is used to extract base rice area in a given year of 1992. The NOAA AVHRR data is used to predict the changing tendency of the rice planting area
Razvitie l'nopromyslennogo kompleksa Ukrainskoj SSR i racional'noe prirodopol'zovanie (Développement du complexe d'industrie du lin en RSS d'Ukraine et exploitation rationnelle de la nature)
Géographie de l'Europe ; Industrie ; Industrie textile ; Lin ; Protection de la nature ; URSS d'Europe ; Ukrainskaja SSR
L'A. établit un rapport entre les indices de fluctuation de la production du lin et les changements de temps. Pour que le traitement du lin ne dépende plus des conditions climatiques, il propose de multiplier les ateliers de préparation de la fibre
A preliminary study of the quantitative coupling between loess-paleosol sequences and summer monsoon changes
The Loess Plateau-Northeastern Tibetan Plateau in China is famous for its deep and continuous distributed loess, in which soils (developed from loess) vary gradually with different biological climates changing from subhumid to arid, which provide
a natural proving ground for study the coupling of loess-paleosol and climatic changes quantitatively. 32 sections were sampled for measuring chemical element contents, clay content and 60 sections were sampled for carbonate analysis to establish transfer
Irrational use of the hilly regions of South China includes high proportion of land under forestry of low timber productivity, continuing expansion of terracing for growing rice, monotonous species used in afforestation, and frequent changes
Mineralisation and changes in the fractions of soil organic matter in soils of the permafrost region, Qinghai-Tibet Plateau, China
Changement climatique ; Chine ; Cycle du carbone ; Géochimie ; Matière organique ; Pergélisol ; Plateau ; Propriétés du sol ; Périglaciaire ; Qinghai ; Tibet
Carbon cycle ; China ; Climatic change ; Geochemistry ; Organic materials ; Periglacial features ; Permafrost ; Plateau ; Qinghai ; Soil properties ; Tibet
on the changes in chemical fractions of organic matter, it could be determined that soils with higher water-soluble fractions had higher rates of carbon mineralisation, while the mechanisms involved in the respiration of different chemical fractions
China ; Climatic change ; Cultivated surface ; Eighteenth Century ; Forest ; Grassland ; Historical geography ; Land utilisation ; Methodology ; Nineteenth Century ; North-Eastern China ; Space time ; Twentieth Century
Cette région chinoise a enregistré des changements plus significatifs que les autres en matière d'occupation du sol, en partie à cause des migrations d'agriculteurs depuis de nord du pays au cours des 300 dernières années. Exposé des techniques de
The effects of rainfall regimes and land use changes on runoff and soil loss in a small mountainous watershed
This paper analyzes runoff and soil loss in relation to the rainfall regimes and land use changes in a small mountainous watershed in the Three Gorges Area (TGA) of China. Based on 10 years of rainfall measurements and K-means clustering, 152
in the Wangjiaqiao watershed, in Zigui County of Hubei Province, where a shift from paddy fields and cropland to forest and orchards is the most important land use change between the years 1995 and 2004. These land use changes caused significant decreasing trends
Adaptation ; Azote ; Changement climatique ; Chine ; Chine de l'Est ; Cycle biogéochimique ; Cycle de l'azote ; Cycle de l'eau ; Cycle du carbone ; Date 2008 ; Ecosystème ; Forêt ; Utilisation de l'eau
Adaptation ; Biogeochemical cycle ; Carbon cycle ; China ; Climatic change ; Eastern China ; Ecosystem ; Forest ; Nitrogen ; Nitrogen cycle ; Water cycle ; Water use
. studied the geographical distribution patterns of vegetable water use efficiency (WUE) and nitrogen use efficiency (NUE), and analyzed their relationship with environmental factors. The results suggest that global change would impact the resource use
efficiency of forest ecosystems. However, vegetation could adapt to those changes by increasing the use efficiency of shortage resource while decreasing the relatively ample one. But extreme impacts, such as heavy nitrogen deposition, would break this trade