赣江上游小流域农业非点源污染生态防治技术研究

Ecological Techniques of Prevention and Control for Agricultural Non-Point Source Pollution of Small Watersheds on the Upper Stream of Ganjiang River

水土流失所导致的农业非点源污染已经成为赣江上游水污染的主要原因之一。以赣江上游的左马小流域为研究区,采用野外试验与问卷调查相结合的方法,进行了以小流域为单元的农业非点源污染源调查。在此基础上,针对赣江上游地区水土流失所导致的农业非点源污染的特征,结合当地实际情况,讨论了小流域农业非点源污染的生态防治措施,主要包括村落非点源污染生态控制技术、坡耕地非点源污染生态控制技术以及水系径流生态处理与生态修复技术等,这些技术的有机结合可形成赣江流域农业非点源污染控制与管理措施体系。

The agricultural non-point source pollution caused by soil and water loss has become one of the main reasons of water pollution on the upper stream of Ganjiang River.The paper surveys agricultural non-point source pollution by taking small watershed as an unit and Zuoma Small Watershed on the upper stream of Ganjiang River as a research area,using the method of combining field test with questionnaire.It discusses on ecological measures of prevention and control for agricultural non-point source pollution of small watersheds,mainly including technique of ecological control of non-point source pollution of villages,technique of ecological control of non-point source pollution of sloped land and technique of ecological treatment and ecological rehabilitation of water system according to the characteristics of agricultural non-point source pollution caused by soil and water loss of the upper stream area and combining with the actual condition of the research area.The organic combination of these techniques can form a control and management measures system of agricultural non-point source pollution of watershed and provide an effective way for agricultural non-point source pollution control and management of Ganjiang River basin.