概念性非点源污染动态模型(CNPDM)及其应用研究

A Conceptional Nonpoint Pollution Dynamic Model (CNPDM) and its Applications

概念性非点源污染动态模型(CNPDM)根据非点源污染的产生机理和动态过程,直接模拟了具有不同非点源产生特征与产生潜力的各类下垫面,并采用空间、时间离散化的方法使整个模拟结果具有时空差异性,从而更客观和直接地表述了区域性非点源污染的分布与程度,为非点源污染的控制及对策的研究提供了依据。CNPDM已在广东省的江门市、深圳市等地的研究中得到验证。并应用到珠江三角洲的非点源污染计算中。

The Conceptional Nonpoint Pollution Dynamic Model (CNPDM) describes pollutants release mechanism and their delivery dynamic processes, On this basis, it can directly simulate the nonpoint pollution processes in various surface which has homogeous physical characteristics, Futhermore, by using the time-and-space separation method,the model can calculate nonpoint source and its effect at any time of the process and any place of the simulating area. The results show the regional distribution and process difference of the nonpoint pollution and will become the important scientific basis for nonpoint pollution control and management. CNPDM has been applied to the nonpoint pollution research on Jiangmen and Shenzhen city in Guangdong Province, and also has been extended to estimate the nonpoint sources and their impacts on the Pearl River Delta. The results were proved to be reliable.