基于GIS与关联分析的土壤肥力评价  

Soil fertility evaluation based on geographic information system and gray relative analysis

作　　者：吴谷丰[1] 胡月明[2] 张少康 刘智华[4] 李世华[2] 

机构地区：[1]佛山教育学院,佛山528000 [2]华南农业大学资源环境学院,广州510642 [3]广东江门市规划局,江门529000 [4]华南农业大学工程技术学院,广州510642

出　　处：《农业系统科学与综合研究》2002年第3期169-171,共3页System Sciemces and Comprehensive Studies In Agriculture

基　　金：广东省自然科学基金资助项目 (980 15 0 );国家"九五"攻关项目 (95 -0 0 4-0 3 -10 )内容

摘　　要：以广东省东莞赤红壤农业现代化实验区为例 ,应用ArcInfo进行空间数据采取、处理与分析 ,采用叠置分析的方法 ,以评价因素的组合确定评价单元 ;采用层次分析法确定评价因素的权重 ;构造灰关联综合评价模型 ,计算各单元的灰关联综合评价值 ,得出各单元按肥力从劣到优排列的序列 ,根据灰关联综合评价值的大小划分土壤肥力等级并分级统计其面积。图 1,表 3,参 5。Taken Dongwan Agricultural Modernization Experimental Field for Red Soil Areas as the research site, soil fertility evaluation based on the technique of Geographic Information System and mathematic models was discussed. ArcInfo was adopted to spatial data collection, processing and analysis, overlay analysis was used to determine evaluation unit by combination of evaluation factors, AHP was applied to judge the weight of each evaluation factor, gray relative comprehension evaluation model was given, value of gray relative comprehensive evaluation of all samples was calculated and the order of samples on soil quality was given, soil fertility was grading according to the result of gray relative comprehension evaluation.

关 键 词：GIS 土壤肥力 地理信息系统 评价模型 灰关联分析 

分 类 号：S158[农业科学—土壤学] S117[农业科学—农业基础科学]