ANALYSIS OF LAND USE CHANGE AND ITS DRIVING FORCES IN QIANDAO LAKE TOWN,HANGZHOU CITY

Based on the data of land use from 1993 to 2004 in Qiandao Lake Town,Hangzhou city,the dynamic trend and degree of land use in the district was analyzed by spacial analysis of GIS and Logistic stepwise regression,and its driving forces were also discussed and evaluated.The results showed: from 1993 to 2004,the input of urban areas and mining land and the output of forest land were the major characteristics of land use change in Qiandao Lake town.In quantitative terms,the absolute change extent obeyed the following sequence: land for urban area and mining(533.49 hm2) forest land(-415.025 hm2) idle land(-189.057 hm2) garden land(137.941 hm2) cultivated land(-131.545 hm2) land for traffic(53.319) other idle land(-39.741 hm2) other agricultural land(28.33 hm2) land for water facilities(20.912 hm2) grassland(1.375 hm2).The output area of cultivated land,forest land,idle land and other idle land exceeded its input area,however the area changes of garden land,other agricultural land,water facilities land and urban area and mining land were opposite.Factors,such as the natural factor,urbanization,structure adjust of agriculture,economic benefits,traffic development and national policy,were the main driving forces that caused land use changes in this district.The distance to the federal highway is the most important natural driving factor.