基于GIS的绿洲农田土壤养分现状及地力评价研究  

Research on soil nutrient status and soil fertility evaluation based on GIS

作　　者：吕宁[1] 吕新[1] 张泽[1] 李新伟[1] 王海江[1] 陈剑[1] 

机构地区：[1]新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子832003

出　　处：《干旱地区农业研究》2012年第2期8-13,共6页Agricultural Research in the Arid Areas

基　　金：新疆产学研重大专项-精准农业与信息技术应用与示范(2007ZX03);国家自然基金(30760104)

摘　　要：在GIS支持下运用模糊评价法、层次分析法、地力综合指数法,对农五师81团耕地土壤养分现状及耕地地力进行自动化、定量化评价。结果表明:研究区6 291.65 hm2耕地,分为6级,1级地面积196.71 hm2占评价面积的3.13%,2级地面积480.37 hm2占评价面积的7.64%,3级地面积825.48 hm2占评价面积的13.12%,4级地面积1 709.68 hm2占评价面积的27.17%,5级地面积2312.05 hm2占评价面积的36.75%,6级地面积767.36 hm2占评价面积的12.20%。所建立的量化和半量化耕地地力评价指标体系,及获取的各耕地地力等级面积数据及其分布信息、改良措施,经实地调查分析,符合当地实际。Under the support of GIS,fuzzy evaluation method,analytic hierarchy process（ahp） and synthetic index method were used to evaluate the fertility of ultivated land in a state farm in Xinjiang.The results suggested that the study area of 6 291.65 hm2 farmland could be divided into six grades,grade one was 196.71 hm2,grade two was 480.37 hm2,grade three was 825.48 hm2,grade four was 1 709.68 hm2,grade five was 2 312.05 hm2 and the grade six was 767.36 hm2,and the fertility of grade one to six accounted for 3.13%,7.64%,13.12%,27.17%,36.75%,12.20% respectively.The field survey and analysis show that the local actual conditions are in line with these results,such as the established quantitative and half quantitative index system for farmland fertility evaluation,the obtained information of the area of each grade of farmland fertility and its distribution as well as the improvement measures put forward.

关 键 词：耕地地力评价 GIS 层次分析 模糊评价 

分 类 号：S15[农业科学—土壤学]