【摘要】 农业非点源污染的流域分配研究对于提高环境质量具有重要的现实意义。根据遥感技术得到的土地利用类型、河网、道路、圩区等信息,结合地理信息系统(GIS)的空间分析功能,对非点源污染负荷进行了定量计算及可视化分析,在此基础上,得到各主要河段的污染分配量,这可为寻求流域内合理的土地利用模式和农业非点源污染排放总量的控制方法提供决策依据。更多还原

【Abstract】 The study on watershed distribution of agricultural non - point source pollution is important to improve environmental quality. According to the information of Remote Sensing technique, combining with Geographic information system(GIS),quantitative calculation and video-analysis on watershed distribution of agricultural non - point source pollution are done. And the result of distribution in eaca river segment can be guided to search for the sound utilizing pattern in the segment and the controlling method of the sum of agricultural non - point source pollution.更多还原