基于生态位适宜度模型的土地利用功能评价及调控.docVIP

基于生态位适宜度模型的土地利用功能评价及调控 朱伟亚1，王 晓2，许志伟2,* （）F301.23 文献标识码： A 文章编号： Land use functional evaluation and regulation based on niche-fitness model Zhu Weiya1,Wang Xiao2, ,XuZhiwei31,* (1.Land surveing and planning institute of Shandong,Jinan 25000,China; 2.Feicheng municiple bureau of state land and resources,Taian 271600,China; Abstract Land use functional regionalization is，according to the differences and coordination of land use, an significant mean to realize efficient and intensive utilization of land resources. To coordinate the differences of land function and ecological environmental construction, this paper, combining land niche concept and applying spatial analysis methods of raster data in GIS, builds up suitability evaluation index system selecting such three aspects as agricultural production suitability, urban development suitability and ecological environment suitability. Then it, applying niche suitability evaluation model, selecting grid units as evaluation units, evaluates Lulong County. The evaluation results show that there exist obvious differences among areas of niche suitability. Under the framework of niche suitability, the area is divided into optimization development zone, important development zone, limited development zone and development-prohibited zone four land use functional zones. Zoning results show that Lulong County focus on the ecological development in the northern area, on the agricultural development in the center and relies on the existing urban development system, which stresses the excavation of internal potential and reasonable expansion of the industrial park. By this research on evaluation and regulation of land use function, it can give reasonable suggestions for the land resources use in Lulong County. Key words niche; functional regionalization; suitability evaluation 引言 土地利用功能分区对严格保护耕地资源，规范土地资源利用开发和保护生态用地，加强土地用途管制都具有十分重要的意义。国家“十一五”规划纲要明确提出，各地要根据资源环境承载能力、现有开发密度和发展潜力，将国土空间划分为优化开发、重点开发、限制开发和禁止开发4类主体功能区