基于多因素分析决策的关中地区土地适宜性评价  

Land suitability evaluation based on multi-factors analysis decision-making

作　　者：杨勇[1] 任志远[2] 

机构地区：[1]河南财经政法大学资源与环境学院,郑州450002 [2]陕西师范大学旅游与环境学院,西安710062

出　　处：《测绘科学》2013年第4期37-39,共3页Science of Surveying and Mapping

基　　金：国家自然科学基金(40771019);陕西省社会科学基金项目(10E126)

摘　　要：针对传统的土地适宜性评价缺乏从自然、社会和经济综合的角度考虑土地利用问题的缺陷,本文以关中地区为研究区域,探讨了多因素分析决策的土地适宜性评价指标体系、模型以及GIS技术支持下的分析评价方法,为区域土地优化利用提供参考。研究结果表明,关中地区有27.60%的土地最适宜耕作,主要分布在关中平原地区,建设用地最适宜区占区域面积的15.08%,关中地区总面积的29.62%最适宜林地,不适合草地分布的区域占总面积的0.26%。The traditional models of land suitability evaluation are short of comprehensive consideration in land use with natural, social and economic characters. In the paper, Guanzhong region in Shaanxi province was taken as an example, the index system, eval- uation model and GIS methods about the land suitability evaluation were discussed. The research result can be used as a reference for optimal land use. The research indicated that, 27.60% of study area is suitable for cultivated, which concentrates on Guanzhong plat- eau, 15.08% of study area suitable for built-up land, 29. 62% of study area suitable for forest land, only 0. 26% of study area unsuit- able for grass land.

关 键 词：适宜性评价 多因素分析 GIS 关中地区 

分 类 号：P208[天文地球—地图制图学与地理信息工程]