基于GIS与模糊数学的县级耕地地力质量评价研究  

Evaluation of Farmland Productivity Based on GIS and Fuzzy Mathematics Theory at County Level

作　　者：王良杰[1,2] 赵玉国[2] 郭敏[1] 张甘霖[2] 

机构地区：[1]南京农业大学公共管理学院,南京210095 [2]土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京210008

出　　处：《土壤》2010年第1期131-135,共5页Soils

基　　金：国家自然科学基金项目(40771092);中国科学院创新方向性项目(KZCX2-YW-409)资助

摘　　要：以安徽省宣城市宣州区为例,结合开展的测土配方施肥工作,在GIS支持下,利用土壤图和土地利用现状图叠置法确定评价单元,选取土壤养分含量和有效性以及立地条件3个方面共14个因子,建立耕地地力评价体系及其模型,运用层次分析法和模糊数学、综合指数等方法对耕地地力进行综合评价,评价结果符合当地实际,可以为全国测土配方施肥提供方法和技术支持。Taking Xuancheng City of Anhui Province as a study case, this paper, supported by the technique of GIS, decided the evaluation unit by overlapping the soil map and land use type map, selected fourteen influential factors from three aspects, i.e., soil nutrient content, soil nutrient availability and site condition, established the evaluation system and model of farmland productivity, adopted the methods of Analytical Hierarch program（AHP）, Fuzzy Mathematics Theory（FMT） and Integrated Index to synthetically evaluate the farmland productivity. The results were well in line with the local situation, thus the method adopted here can provide a technical support for the similar work in China.

关 键 词：耕地地力评价 模糊数学 地理信息系统 

分 类 号：S158[农业科学—土壤学]