甘肃农业科技
甘肅農業科技
감숙농업과기
GANSU AGRICULTURAL SCIENCE AND TECHNOLOGY
2013年
11期
14-18
,共5页
GIS%耕地地力%层次分析%模糊评价%天祝县
GIS%耕地地力%層次分析%模糊評價%天祝縣
GIS%경지지력%층차분석%모호평개%천축현
GIS%Cultivated land fertility%Analytic hierarchy process (AHP)%Fuzzy evaluation%Tianzhu county
以甘肃省天祝藏族自治县耕地地力调查数据为基础,在GIS的支持下,采用土壤分布图、农用地地块图、灌溉分区图、地貌类型分区图、行政区划图叠置的方法划分评价单元,系统聚类与Delphi法相结合筛选参评因素,以层次分析法(AHP)确定其权重,模糊评判法确定耕地地力等级等方法,将县域耕地地力划分为5个等级,并针对不同等级耕地的属性特征提出了合理利用和改良建议。
以甘肅省天祝藏族自治縣耕地地力調查數據為基礎,在GIS的支持下,採用土壤分佈圖、農用地地塊圖、灌溉分區圖、地貌類型分區圖、行政區劃圖疊置的方法劃分評價單元,繫統聚類與Delphi法相結閤篩選參評因素,以層次分析法(AHP)確定其權重,模糊評判法確定耕地地力等級等方法,將縣域耕地地力劃分為5箇等級,併針對不同等級耕地的屬性特徵提齣瞭閤理利用和改良建議。
이감숙성천축장족자치현경지지력조사수거위기출,재GIS적지지하,채용토양분포도、농용지지괴도、관개분구도、지모류형분구도、행정구화도첩치적방법화분평개단원,계통취류여Delphi법상결합사선삼평인소,이층차분석법(AHP)학정기권중,모호평판법학정경지지력등급등방법,장현역경지지력화분위5개등급,병침대불동등급경지적속성특정제출료합리이용화개량건의。
The article is based on the survey data of cultivated land fertility in Tianzhu Tibetan Autonomous County of Gansu Province, using Delphi approach, cluster analysis,analytic hierarchy process (AHP) and fuzzy evaluation based on GIS to establish the combinative method of qualitative and quantitative for evaluating cultivatedland fertility and to provide the scientific basis for management and sustainable utilization of cultivated landresources .The results showed that the fertility of cultivated land could be divided into five grades, and the suggestions torationally utilize and improve cultivated land resources were proposed to analyze the characteristics of thecultivated lands with different fertility and problems in utilization of cultivated land .