基于GIS的水环境非点源污染模型研究

Research on Nonpoint Sources Pollution model Based on GIS

非点源污染是水环境研究的重点和难点,利用模型对非点源污染进行研究是该项研究的重要内容之一。由于非点源污染具有广泛性、时空异质性和随机性的特点,用常规方法分析、评价、控制和管理有较大难度。随着地理信息系统(GIS)的发展以及非点源污染模型研究的不断深入,二者的结合已在该项研究中取得了一定成果。基于插件式GIS技术、RS技术、空间数据挖掘技术以及空间决策支持系统(SDSS)是非点源模型发展应用的趋势和方向。

Nonpoint source pollution（NSP） is a main part of water environment researches. Due to the characteristic of NSP, it is difficult to analysis, assess, control and manage using the conventional method. With the development of GIS and NSP model, it has got much success in integrating NSP and GIS. Research progress and prospect of NSP research based on GIS are discussed in the paper.