Authors: CAO Gao-ming 1, 2, DU Qiang 1, GONG Hui-li 2, PENG Wen-qi 1
1. Department of Water Environment, IWHR, Beijing 100038, China;
2. College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China
Abstract: Compared with point source pollution, NPS (non-point source pollution) has the characteristics of randomness, broadness, hysteresis and so on. It is more difficult and complex in mechanism research and model simulation. The basic concepts, characteristics and impact on water environment of NPS will be given in the first part of this paper; and then the progress of three important parts of NPS (rainfall runoff, soil erosion and pollutants migration and transformation) will be introduced. And the integration of GIS and RS technology with NPS study will be summarized. Finally, the problem of NPS and its study trends will be listed.
Key words: water Environment, NPS, runoff, soil erosion
Published in: Journal of China Institute of Water Resources and Hydropower Research, Vol. 9, No. 1, 2011
Article ID: 1672-3031 (2011) 01-0035-06
