In order to investigate the quantity change of each land-use type and land-use dynamic variation,the techniques of remote sensing and geographic information system was applied to study land use change during 1974 - 2005, such as land-use change range and rate, land-use degree. The results were as follows: the area of farmland, and urban and rural industrial land increased quickly from 1974 to 2005,the area of woodland declined from 1974 to 1995 and increased after 1995, the grassland area relatively changed little, and the area of unused land always decreased 12. 9 km2 during 31 years. Land-use changing speed continually declined as a whole in Xiaojiang Basin and the land use changed quickly during 1974 - 1987. Meanwhile,the land-use degree increased at all times,suggesting land use was still in its development phase. In this area,the land use change was predominantly affected by some factors,such as historical factor, population and policy etc.
Xiaojiang Basinland usedriving factorsremote sensing and image interpretation
国家科技期刊平台
NSTL
维普
万方数据
