Abstract
The research on the land use/cover change is one of the frontiers and hot spots in the globe change research Based on the Chinese resource and environment spatialtemporal database, and the Landsat TM?MSS and ETM data which were acquired at the end of 1970's?1980's and 1990's respectively, we analyzed the spatialtemporal characteristics of land use/cover changes in the Dongting Lake area The result shows that during the last twenty years there were three landuse types that have changed remarkably The cultivated land decreased by 197% of total cultivated land The construction land and water area expanded, with an increase of 1488% and 877% respectively The landuse change speed of landuse type at the period between the end of 1970's and 1980's is slower than that at the period between the end of 1980's and 1990's Three cities and towns, Yueyang City?Yuanjiang County and Hanshou County have gotten the greatest value of the degree of landuse change in all administrative district at the previous 10 years, which means that the land use in these cities and towns has changed much quicklyHowever, at the later 10 years, Shishou City and Jinshi City, all of them are citylevel district,have developed from county to city, replacing Yuan-jiang County and Hanshou County, and have gotten the greatest value of the degree of landuse change
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