基于GIS的新疆库尔勒市耕地地力等级评价研究  

Evaluation on Soil Fertility Grade of Cultivated Land Based on GIS in Korla City of Xinjiang

作　　者：周婵[1] 朱磊[1] 盛建东[1] 

机构地区：[1]新疆农业大学草业与环境科学学院,乌鲁木齐830052

出　　处：《新疆环境保护》2012年第1期16-20,共5页Environmental Protection of Xinjiang

摘　　要：以新疆库尔勒市为例,将利用测土配方施肥项目所取得的基础数据,筛选有机质、速效钾、有效磷、有效锌等可量化的指标作为评价指标。根据模糊数学理论和特尔斐法建立评价因子的隶属函数模型,利用层次分析法建立评价因子的层次分析模型。以ArcGIS统计分析模块和空间分析模块为平台,根据加法模型计算出耕地地力综合指数,划分耕地地力等级。评价结果基本符合当地实际。Taking Korla county of Xinjiang as an example,some quantifiable indexes including organic matter,available potassium,effective phosphorus,effective zinc,conductivity and pH value have been screened as evaluating indicators.The data were obtained on the basis of fertilization project with soil detection.The membership function model concerning evaluation factors was constructed according to theory of fuzzy mathematics and Telphi Principle.The analytic hierarchy model of evaluation factors was formed by using analytic hierarchy process（AHP）.Therefore,the soil fertility grade of cultivated land can be divided according to calculated integrative indexes of cultivated land productivity on the basis of addition model and constructed platform on the basis of ArcGIS statistical analysis module and special analysis module.The evaluation results was in accorded with the real circumstances.

关 键 词：耕地地力 地理信息系统 评价 

分 类 号：X825[环境科学与工程—环境工程]