基于WebGIS的农田生产环境质量评价系统研究

Study on WebGIS-Based Farming Environment Quality Assessment System

在确立农田生产环境质量评价方法的基础上,以国家农业环境质量标准为依托,以模糊综合评价法及改进的标准赋权法与层次分析法相结合的权重确定法为量化手段,以 WebGIS 为空间信息平台,构建了网络化、智能化的农田生产环境质量评价系统。系统实现了数据录入编辑、维护备份、信息查询、智能评价以及结果展示等功能。以江苏省仪征市为案例点,对农田生产环境质量评价系统进行了实例应用,表明该评价系统对生产基地环境质量的评价具有较好的科学性和指导性。

On the basis of establishing the assessment method of farmland production environment quality, with the national environment quality standard as basic criteria, using fuzzy cluster evaluation method, improved standard weight deciding method and hierarchical analysis process as assessment means, and using WebGIS as spacial information platform, a Web-based intelligent environment quality assessment system was developed to support farming. The system has realized the functions as data storage and editing, data maintenance and backup, information query, intelligent assessment and result display. Case studies on the assessment system with the datasets in Yizheng City of Jiangsu Province indicated a good suitability and guidance of the system on environment quality assessment in farming base.