Land Use Change And Ecological Security Evaluation In Rapid Economic Development Region

Land is the material base for human beings'existence and development. With the increase of economic development, ecological environment of land resources is severely destroyed. As one important aspect of ecological security, Land use change and ecological security evaluation become the frontier of research into sustainable use of land resources, which is very significant.The first chapter sustematically looks back the progress of relevant fields in land use change and ecological security in domestic and international. Aggregate the main concents of land use change research and raise the main direction.In the second chapter,analysis status of socio-economic development in Wuhu city, competite the development status among Wuhu city and Anhui province and China from defferent factors.The results show that it is a quick development period in Wuhu city.The third chapter build land use database used GIS integrate technologies in Wuhu city, analysis the land use status, Land-use Change Dynamic and existing problems in land use in Wuhu city;Further analysis the drivering factors of build-land and farm-land used principal component analysis and multiple regression analysis.The results show that land use change is main in farm-land,traffic-land and urban-land from 1996 to 2004 in Wuhu city, it's defferent in defferent period about land use change;The main drivering factors is GDP and financial expenses and another economic factors.The fourth chapter use composite index method to evaluate land ecological security from 1996 to 2004 in Wuhu city and another fifteen years in future used forecast data.The result shows: in nowadays the status is poor or general stage of land ecological secutity in Wuhu city, it's slow to change to good direction; but land ecological system have suffered some degree of the break, it is the possible to the land ecological environment change for worst direction. The management and control should be strengthened, to guide land ecological secutity situation change in Wuhu city.Chapter 5 raised corresponding countermeasures in the viewpoint of ecological security for sustainable use of land resources in Wuhu, from land eco-system health management, farm-land protection, save land and so on. It is provide the basis for land use planning and land resource management and land ecological environment protection.