Around half of the world’s popula- tion is urbanized. The urban environment is a mosaic of man-made, natural and seminatural habitats with climatic and hydrological conditions, which distinguish it from adjacent rura...Around half of the world’s popula- tion is urbanized. The urban environment is a mosaic of man-made, natural and seminatural habitats with climatic and hydrological conditions, which distinguish it from adjacent rural areas.Currentcities arenotonlyacrowded and clamorous commercial area, but also in- cludeextensivespacesuch asagriculturalland, mountain and costal area etc. Urban-dwellers seek to create amiable living condition, and mosaic together skyscrapers with green space such as a stretch of forest,garden and agricul- tural land,in order to improve urban environ- ment quality, and to support comfortable and graceful environment for people. So, coexist of nature and modernization, which are con- sidered as the goal of modern urban construction.The paper makes a simple illus- tration for example of Nanjing city.展开更多
Taking social statistic data as basic data,this paper extended the meaning of urban land uses,highlighted the meaning of urban land uses in modern urbanization,which includes direct,indirect and induced land uses,quan...Taking social statistic data as basic data,this paper extended the meaning of urban land uses,highlighted the meaning of urban land uses in modern urbanization,which includes direct,indirect and induced land uses,quantitatively simulated the indirect and induced land uses by the substitution method of agricultural consumption and urban carbon emission and then,analyzed the spatiotemporal evolution of urban land uses in China during 1952–2005 by spatial analysis tool of Geographic Information System. The results indicate that the area of urban land use in China had been increasing since 1952,showing an inversed pyramid structure,i.e.,the direct<the indirect<the induced. Specifically,Chinese urban land use has changed from concentrated distribution in Northwest China to balanced spatial distribution,and the eastern coastal area is under great pressure. Moreover,the northeastern region has moved into the induced dominant stage,while the western region remains at the indirect dominant stage. Finally,it is proposed that in order to guarantee the future demand of urban land use in China,ensuring the induced land use in the eastern region should be taken as a priority goal of Chinese developing policy.展开更多
文摘Around half of the world’s popula- tion is urbanized. The urban environment is a mosaic of man-made, natural and seminatural habitats with climatic and hydrological conditions, which distinguish it from adjacent rural areas.Currentcities arenotonlyacrowded and clamorous commercial area, but also in- cludeextensivespacesuch asagriculturalland, mountain and costal area etc. Urban-dwellers seek to create amiable living condition, and mosaic together skyscrapers with green space such as a stretch of forest,garden and agricul- tural land,in order to improve urban environ- ment quality, and to support comfortable and graceful environment for people. So, coexist of nature and modernization, which are con- sidered as the goal of modern urban construction.The paper makes a simple illus- tration for example of Nanjing city.
基金Under the auspices of Key Program of National Natural Science Foundation of China (No. 40535026)
文摘Taking social statistic data as basic data,this paper extended the meaning of urban land uses,highlighted the meaning of urban land uses in modern urbanization,which includes direct,indirect and induced land uses,quantitatively simulated the indirect and induced land uses by the substitution method of agricultural consumption and urban carbon emission and then,analyzed the spatiotemporal evolution of urban land uses in China during 1952–2005 by spatial analysis tool of Geographic Information System. The results indicate that the area of urban land use in China had been increasing since 1952,showing an inversed pyramid structure,i.e.,the direct<the indirect<the induced. Specifically,Chinese urban land use has changed from concentrated distribution in Northwest China to balanced spatial distribution,and the eastern coastal area is under great pressure. Moreover,the northeastern region has moved into the induced dominant stage,while the western region remains at the indirect dominant stage. Finally,it is proposed that in order to guarantee the future demand of urban land use in China,ensuring the induced land use in the eastern region should be taken as a priority goal of Chinese developing policy.
