滨岸缓冲带控制农田氮磷流失的作用和机理研究

农田面源氮磷的流失是导致河流湖泊等水体产生富营养化的主要原因之一,其带来的环境、经济及社会问题已引起国内外广泛关注。近年来,关于滨岸缓冲带截留污染物的效率和机理已成为研究热点。文章介绍了滨岸缓冲带在农业面源污染防治上的功能和作用,论述了滨岸缓冲带对氮磷养分的截留转化机理以及稳定同位素技术在机理研究中的应用,讨论了影响滨岸缓冲带截留转化氮磷养分的调控因子,在此基础上就目前滨岸缓冲带控制农田氮磷流失研究中存在的问题提出了未来的研究展望。

Effect and Mechanism of Nitrogen and Phosphorous Losses from Agricultural Fields in Riparian Buffer Strips

Losses of nitrogen and phosphorus from agricultural fields is one of the major factors responsible for eutrophication of lakes and rivers,brining a series of problems in environment,economy and society.In recent years,the interception efficiency and mechanism of pollutants by riparian buffer strip have become research focus.In this paper,the function and role of the riparian buffer zone in agricultural non-point source pollution prevention are introduced.The retention mechanism of nitrogen and phosphorus in riparian buffer zone and the application of stable isotope technique in the study of mechanism are discussed.The control factors of riparian buffer zone interception transformation of nitrogen and phosphorus are analyzed.Future research frontiers are also proposed based on the summary and analysis.