降雨、地形对非点源污染产输影响机理综述

REVIEW OF RESEARCHES ON INFLUENCE MECHANISM OF RAINFALL,TOPOGRAPHY ON THE PRODUCTION AND TRANSPORTATION OF NON-POINT SOURCE POLLUTION

随着工业点源的逐步控制,非点源因其来源多样、涉及范围广、控制难度大,已成为影响水环境质量的主要污染源。非点源污染产输机理是开展定量研究、模型模拟及污染治理的基础,也是非点源污染研究领域的重点和难点。降雨是非点源污染产输的直接驱动力,地形是影响非点源污染产输的重要因素,两者对非点源污染的产输均具有重要影响。对国内外在降雨、地形对非点源污染产输影响机理方面的研究进行综述,以期为非点源污染相关研究提供参考和借鉴。

With the control of point source pollution,non-point source( NPS) pollution has become the dominant source which affects water quality due to its multi-source,wide distribution,controlling difficulties and so on. Production and transportation mechanism of NPS pollution is the basis of quantitative study,model simulation and pollution control. Moreover,it is also an important and difficult issue in the field of NPS pollution research. According to the previous researches,rainfall is the driving force of NPS pollution,and topography is the main influencing factor of NPS pollution. As for the two important factors,a lot of researches concerning their influence on the production and transportation of NPS pollution have been carried out at home and abroad nowadays. In this article,such researches were reviewed so as to provide a reference for related studies.