CAJ | 학술논문

利用图层叠加求交的方法，把合水县土壤图、农用地地块图和行政区划图叠加求交，得到5487个评价单元。选取2012年≥10℃积温、年降水量、有机质、有效磷、耕层厚度、剖面构型、地貌类型、坡向和坡度作为评价指标，采用层次分析法建立层次分析模型，采用特尔斐法和隶属函数拟合法确定各评价指标的隶属度和隶属函数，最后使用县域耕地资源管理信息系统加法模型计算耕地地力综合指数IFI，通过IFI大小来划分合水县耕地地力等级。结果一等地综合评价指数IFI﹥0.9200，占耕地总面积的2.71%；二等地IFI为0.9200~0.8850，占16.93%；三等地IFI为0.8850~0.7250，占45.58%；四等地IFI为0.7250~0.6250，占26.82%；五等地IFI﹤0.6250，占7.96%。
이용도층첩가구교적방법，파합수현토양도、농용지지괴도화행정구화도첩가구교，득도5487개평개단원。선취2012년≥10℃적온、년강수량、유궤질、유효린、경층후도、부면구형、지모류형、파향화파도작위평개지표，채용층차분석법건립층차분석모형，채용특이비법화대속함수의합법학정각평개지표적대속도화대속함수，최후사용현역경지자원관리신식계통가법모형계산경지지력종합지수IFI，통과IFI대소래화분합수현경지지력등급。결과일등지종합평개지수IFI﹥0.9200，점경지총면적적2.71%；이등지IFI위0.9200~0.8850，점16.93%；삼등지IFI위0.8850~0.7250，점45.58%；사등지IFI위0.7250~0.6250，점26.82%；오등지IFI﹤0.6250，점7.96%。
By using the method of the layer stack intersection,put the soil map,agricultural land block diagram and the administrative zoning map of the Heshui county superposition of intersection to get 5 4 8 7 evaluation units . The accumulated temperature≥10 ℃,annual precipitation,the organic matter,the effective phosphorus,top layer thickness,profile configuration, geomorphic types,slope aspect and degree were selected to be the evaluation index,using analytic hierarchy process to establish the analytic hierarchy model,Delphi method and membership function fitting method to get membership and membership function of each evaluation index. Finally,using cultivated land resource management information system of the county additive model to calculate IFI, according to the number of IFI to divide the farmland productivity level of Heshui county . The first-grade arable land IFI is bigger than 0.920 0,accounting for the total area of cultivated land 2.71%;The second-grade arable land IFI is 0.920 0 ~0.885 0, accounting for the total area of cultivated land 16.93%;The third-grade arable land IFI is 0.885 0~0.725 0,accounting for the total area of cultivated land 45.58%;The fourth-grade arable land IFI is 0.725 0~0.625 0,accounting for the total area of cultivated land 26.82%;The fifth-grade arable land IFI is smaller than 0.625 0,accounting for the total area of cultivated land 7.96%.