Research On Land Use Change And Its Environmental Effects In Changle City Based On GIS

Land use and land cover change (LUCC) is one of the key themes studied in global change at present .No matter in the whole world, country or yardstick of area, land use change always lead to land cover change . Because of marine ecosystem, water , food , fibre resource abundant or scarce would be influenced by LUCC directly or in directly. A lot of sustainable development problems put forward in World Conference on environment and development are have something to do with LUCC. So study regional land use and land cover change is very important for regional sustainable development.Changle city lies in southeast coastal economic prosperity bring of China .Since 1990s, its social economy is developed rapidly, the state of land use have changed very greatly. So it have certain model and representativeness as the case of LUCC . This paper is on the basis of collecting various kinds of materials of studying area extensively, supported mainly with GIS technology, it utilize two issues of land use current situation map after vector as the sources of the key data .Combining other natural , social , economic data, it sets up the land use changing database. Regard regional land sustainable utilization as the goal, it uses the synthesis analysis of geography and real example analysis and GIS and mathematics method combined together to analyse land use space-time change and environmental effects of Changle city. It uses mathematics statistical method to analyse the driving force and driving mechanism of land use change and probe into the way of land sustainable utilization of Changle city on this basis. Through this research , it not only offers scientific basis for land rational utilization and sustainable development of Changle city, but also offers the local materials for LUCC study.