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利用县域土壤数据库,对土地利用现状图、土壤类型图和行政区划图叠加形成评价单元;选取生产性能、土地管理、立地条件、剖面组成、土壤理化性状及养分6个方面13个影响要素作为参评因素;采用特菲尔法给出隶属度,利用AHP法确定权重,运用MAPGIS软件对山东省莱西市农田土壤资源进行综合评价。结果表明,莱西市农田土壤资源地力主要以二、三、四等地为主,分别占耕地总面积的28.0%、39.0%和20.7%。
The county soil database was used to evaluate the land use status maps, the soil type maps and the administrative zonation maps. 13 influencing factors of production performance, land management, site conditions, section composition, soil physical and chemical properties and nutrients were selected as evaluation units The membership degree was given by using the Teflon method and the weight by AHP method. The MAPGIS software was used to evaluate the farmland soil resources in Lacey, Shandong Province. The results showed that the main land resources in Lacey farmland were mainly second, third and fourth, accounting for 28.0%, 39.0% and 20.7% of the total arable land respectively.