关键词: 城镇发展用地评价, 地理信息系统覆盖分析

Abstract: Regional landuse evalution for the development of cities and towns is an important prerequisite of regional economic development. In this paper, with the help of Geographic Information System, the authors set up a new evalution system, it is formed by a series of models, such as Landform Evalution Model, Diffuse Models, Multi-factor Overlay Model, etc. Among these models, the Multi-factor Overlay Model is the most important one.Its action is to combine some relative evalution maps with several new maps. These new maps combine the information from the previous maps selectively, with these new evalution maps and some other material, the evalution work can be more efficient and accurate,Ilainan province is the largest Special Economic Zone in China. It is also the only large tropical island in China. So it is very important to use its land and other resources rationally and economically. The authors apply this evalution system on regional landuse evalution for the development of cities and towns in Hainan province. The result is satisfactory and we may divide the whole island into five different parts. 1, NorthUrban-Industrial Zone. 2. Green Zone, taking agriculture and other tropical crops as dominant factor. 3. Reserved Zone for Urban-Industry, 4, Ecologic protection Zone. 5. Seaside Tourist Zone.

Key words: landuse evalution for the development of cities and towns, geographic information system, overlay analysis