Study on spatial pattern of land-use change in China during 1995–2000
Study on spatial pattern of land-use change in China during 1995–2000
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DOI：
10.1360/03yd9033
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发表时间：
2003-04
期刊：
影响因子：
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通讯作者：
Jiyuan Liu;Mingliang Liu;D. Zhuang;Zengxiang Zhang;Xiangzheng Deng
中科院分区：
文献类型：
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作者：
Jiyuan Liu;Mingliang Liu;D. Zhuang;Zengxiang Zhang;Xiangzheng Deng
土地利用/覆被动态变化已成为全球环境变化研究中亟待解决的重要课题。本文在Landsat TM数字影像的支持下，研究了1995 - 2000年土地利用变化的空间格局和时间变化。根据土地利用动态度模型，以1 km的土地利用变化格网数据为支撑，结合区域自然、经济、社会等综合特征，设计了土地利用变化动态区划，揭示了土地利用变化过程的空间格局。一般来说，在传统的农业区，例如，在黄淮海平原、长江三角洲和四川盆地，建成区和居民点占有很大比例的耕地，而在北方农牧交错带和绿洲农业区，生产条件、经济效益和气候条件的变化对耕地开垦的驱动作用十分显著。“退耕还林还草”政策的实施在一些地区取得了初步成效，但要说全国森林砍伐的趋势得到有效扭转还为时过早。为了揭示土地利用变化的时空特征，为研究区域尺度的土地利用变化奠定基础，设计了土地利用变化动态分区。同时，将土地利用变化的空间格局和时间过程进行了综合研究，这是对土地利用变化过程的空间格局比较研究和土地利用变化空间格局变化过程研究的一次有益尝试。
It is more and more acknowledged that land-use/cover dynamic change has become a key subject urgently to be dealt with in the study of global environmental change. Supported by the Landsat TM digital images, spatial patterns and temporal variation of land-use change during 1995 –2000 are studied in the paper. According to the land-use dynamic degree model, supported by the 1km GRID data of land-use change and the comprehensive characters of physical, economic and social features, a dynamic regionalization of land-use change is designed to disclose the spatial pattern of land-use change processes. Generally speaking, in the traditional agricultural zones, e.g., Huang-Huai-Hai Plains, Yangtze River Delta and Sichuan Basin, the built-up and residential areas occupy a great proportion of arable land, and in the interlock area of farming and pasturing of northern China and the oases agricultural zones, the reclamation of arable land is conspicuously driven by changes of production conditions, economic benefits and climatic conditions. The implementation of “returning arable land into woodland or grassland” policies has won initial success in some areas, but it is too early to say that the trend of deforestation has been effectively reversed across China. In this paper, the division of dynamic regionalization of land-use change is designed, for the sake of revealing the temporal and spatial features of land-use change and laying the foundation for the study of regional scale land-use changes. Moreover, an integrated study, including studies of spatial pattern and temporal process of land-use change, is carried out in this paper, which is an interesting try on the comparative studies of spatial pattern on change process and the change process of spatial pattern of land-use change.