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根据土地资源的特点及土地评价的原理，在微机软、硬件系统支持下，基于Ｗｉｎｄｏｗｓ平台，建立了土地资源评价信息系统（ＬＡＩＳ），该系统具有建库、增加、修改、删除数据等数据编辑和维护功能；在分析了多种土地评价因子类型基础上，根据模糊数学理论，归纳出了４种因子隶属函数模型；并将层次分析（ＡＨＰ）的原理与方法引入土地评价以确定参评因子的权重，将这些模型方法与系统集成快速完成土地评价；该系统与ＡＲＣ／ＩＮＦＯ连接或通讯，实现了空间数据的输入和土地评价专题图件的输出，以完成土地资源评价任务。
Based on the characteristics of land resources and the principle of land evaluation, a land resource evaluation information system (LAIS) is established based on Windows platform with the support of computer software and hardware systems. The system has the functions of building database, adding, modifying and deleting data Based on the fuzzy mathematics theory, four kinds of factor membership function models are summarized. The principle and method of AHP are introduced into the land evaluation to determine the factors The model is integrated with the system to quickly complete the land evaluation. The system is connected or communicated with ARC / INFO to realize the input of spatial data and the output of thematic map of land evaluation in order to fulfill the task of land resource evaluation.