地理信息系统支持下土地评价专家模型的研究

该文首先讨论了土地评价的内容、特点和理论依据，进而提出了地理信息系统支持下土地评价专家模型。该文从设计原则、环境配置、评价指标体系及程序、结构和功能等几个方面对土地评价专家模型进行了研究，最后通过宁夏白林流域的土地评价对系统进行了检验，证明了模型的科学性、可靠性和实用性。该模型的突破点是运行结果自动生成土地评价图和结果数据库。

Study on the Land Evaluation Expert Model Based on Geographic Information System

Firstly,the content, characteristics and theory foundation of the land evaluation are discussed in this paper.Further,the land evaluation expert model based on Geographic Information System is put forward.The land evaluation expert model is studied from the points of design principle,the environment dispose, the evaluation index system and procedure,structure and function and so on. Lastly, the test for the system is made through the land evaluation of Bailin watershed, Ningxia. The results show that the model is scientifically correct,stable and practical.The breakthrough point of the model is that, the running results automatically creat the land evaluation map and result database.