Land use Dynamic Changes and Ecological Effect in Jiaodong Region, China

摘要

Using remote sensing interpretation result for land use and analysis models, we analyse land use dynamic changes and ecological effect in Jiaodong region in three periods of time (1980s-1995, 1995-2000 and 1980s-2000). The study shows: in the nearly 15 years, the most prominent features of land use change are that, the area of urban land increased greatly, farm land decreased obviously, and urbanization was the important driver of land use change; the even value of regional ecological quality indexes stands almost at same level, and this shows that, in general, ecological quality of Jiaodong region changed little from 1980s to 2000; returning cultivated land to grassland, conversing cropland to forest, and returning farmland to lake were main drivers to improve ecological quality, and damage and reclamation of grass lands, farmland occupation for urban construction, farmland occupation for country construction and land reclamation from lake marshes were main drivers to decrease ecological quality.