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Position: Home > Articles > Evaluation of Arable Land Productivity Supported by GIS in Hezhang County Hubei Agricultural Sciences 2013,52 (4) 63-67+71

GIS支持下的贵州省赫章县耕地地力评价

作  者:
李莉婕;童倩倩;孙长青;赵泽英;彭志良;李裕荣;李玲
单  位:
贵州省赫章县农牧局;贵州省农业科技信息研究所
关键词:
耕地地力评价;层次分析法;主成分分析法;贵州省赫章县
摘  要:
以云贵高原典型区赫章县耕地为研究对象,建立基于GIS的县级耕地资源空间数据库及属性数据库,运用层次分析法对赫章县耕地地力进行评价。结果表明,赫章县耕地地力共划分为6个等级,一级地占全县耕地面积的0.68%,二级地占7.20%,三级地占3.38%,四级地占28.77%,五级地占35.04%,六级地占24.92%。运用主成分分析法和专家实地调查法对赫章县耕地地力评价结果进行验证,结果表明运用层次分析法评价的结果符合赫章县耕地地力实际情况。
译  名:
Evaluation of Arable Land Productivity Supported by GIS in Hezhang County
作  者:
LI Li-jie1,TONG Qian-qian1,SUN Chang-qing1,ZHAO Ze-ying1,PENG Zhi-liang1,LI Yu-rong1,LI Ling2(1.Guizhou Agricultural Science and Technology Information Institute,Guiyang 550006,China; 2.Hezhang County Agriculture and Animal Husbandry Bureau in Guizhou Province,Hezhang 553200,Guizhou,China)
关键词:
arable land soil productivity evaluation;analytic hierarchy process(AHP);principal component analysis(PCA);Hezhang county of Guizhou province
摘  要:
Through constructing the special database and attribute database based on GIS,the arable land productivity of Hezhang county was evaluated using the method of analytic hierarchy process(AHP).The productivity of arable land in Hezhang county was divided into 6 levels.The first level land accounted for 0.68% of the total land,the second,third,fourth,fifth,and sixth level land accounted for 7.20%,3.38%,28.77%,35.04% and 24.92% respectively.Then,the evaluation result was verified using principal component analysis(PCA) and experts field investigation.The verification results showed that evaluation result with AHP was in good coincidence with the reality of arable land productivity in Hezhang county.

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