山东省沂源县耕地地力评价研究

以山东省沂源县为研究区域,采用土壤图和土地利用现状图叠加的方法确定评价单元,选取立地条件、物理性状、化学性状3个方面12个评价因子,运用层次分析法确定因子权重,结合模糊评判法确定耕地地力等级.结果表明：山东省沂源县现有耕地共划分为6个等级,一～六级地分别占耕地总面积的14.72％ 、15.52％、18.31％ 、24.25％、10.72％ 、16.48％.并结合实际情况对不同等级耕地进行描述性分析,提出耕地地力提升的措施.

Cultivated Land Productivity Evaluation in Yiyuan County,Shandong Province

Taking Yiyuan County of Shandong Province as the study area,the evaluation units were determined by overlay of soil map and present land use map.Site conditions,physical behavior,chemical character were selected to determine the weight of each evaluation factor by using analytic hierarchy method.The grades of cultivated land fertility were confirmed by fuzzy evaluation method.The results showed that cultivated land could be divided into six grades and the area of the first to sixth grade accounted for 14.72％,15.52％,18.31％,24.25％,10.72％ and 16.48％ of the total area respectively.The main cultivated lands of different grades were analyzed according to their properties.Exploratory farmland productivity promotion measures were put forward.