In the present paper , a complete attribute and spatial database on anpsp is designed and created in three different levels of scale , hang - jia - hu plain ( 1 : 250000 ) , pinghu city ( 1 : 50000 ) , and field experiment ( 1 : 2000 ) . based on the gis technique , especially webgis technique ( arcims , arcsde ) , an agricultural non - point source pollution information system ( anpspis ) has been established in order to serve the management , planning and decision - making of anpsp in hang - jia - hu water - net plain 本文以太湖流域杭嘉湖地区的1 250000 (杭嘉湖平原) 、 1 50000 (平湖市) 、 1 2000 (样板区)三种不同比例尺的系统研究为例，建立了一整套农业面源污染的属性和空间数据库，通过利用gis及其相关技术，特别是webgis技术( arcims 、 arcsde )的应用，建立了一个基于webgis的农业面源污染信息系统( anpspis ) 。
Little is known about how to control anpsp due to lack of the related theory and practical experience . especially there is no satisfactory measure to reduce the runoff and leaching of n and p from agriculture into rivers and lakes . it ' s very significant in both theory and realism to reduce agricultural non - point source pollution and protect our ecological environment for realizing the harmonious development of resource , environment and agriculture in china 农业面源污染是困扰我国社会、经济持续发展的一个严重的环境问题，主要是由于农业面源污染具有量大面广、分散的特点，并受自然条件突发性、偶然性和随机性的制约，现阶段我们对农业面源污染情况的了解程度远远不如点源污染，还缺乏整治的相关理论基础和实践经验，减少污染物尤其是氮、磷营养的排放具有相当大的难度，因此控制农业面源污染、保护和优化生态环境对实现我国资源、环境和农业协调发展有重要的理论和现实意义。
Based on the study on the current instance of agricultural environmental quality and safety in chongqing city , we put forward that : make the best of the environmental resources , carry on the layout of agriculture production , and adjust the agricultural structure ; strengthen ecoenvironmental protection and pollution control in the outskirts of the city ; reasonably apply pesticides and fertilizers in order to avoid agriculture products being polluted by them ; strengthen the construction of monitoring system of agricultural environment and agriculture product quality and safety in the whole city , and develop early warning monitoring ; strengthen non - point pollution control in the three gorges reservoir area ; and conduct more researches on controlling of priority pollutants in agricultural environment 摘要对重庆市农业环境质量安全现状进行了研究分析，提出了充分利用环境资源比较优势，进行农业生产布局和农业结构调整；加强城郊区农业生态环境保护和污染的治理；合理施用农药化肥，防止农产品农药残留和硝酸盐污染；加强全市农业环境与农产品质量安全监测体系建设，开展预警监测；加强三峡库区农业面源污染防治；进一步开展农业环境优先污染物的控制研究等防治对策。
To control and solve anpsp , it ' s necessary to apply information technology to obtain in - time , accurate and effective information on anpsp and process it immediately . based on gis or webgis , the development of anpsp management , planning , decision - making and consulting system has become the new trend in the establishment of environmental information system 面对农业面源污染的严峻形势，应用现代信息技术及时、准确、高效的获取与处理各类污染信息，研制开发农业面源污染管理、规划和决策咨询系统，成为环境信息系统开发的一个重要方面。
