河岸缓冲带净污机制及其效果影响因子研究进展

The review on purification mechanism and its influencing factors of riparian buffers

随着经济社会的飞速发展,农业面源污染已成为导致河流、湖泊、水库等水体水质恶化、营养化的重要原因。居于水陆交界处的河岸缓冲带对净化河流水质具有重要作用,被认为是控制面源污染的"最佳管理措施"(BMPs)之一。在系统地总结国内外河岸缓冲带净污机制及其净污效果影响因子所取得的主要研究成果的基础上,针对目前研究中存在的不足,提出净污机制研究不局限于氮、磷等营养元素以及地表径流去污的机制研究,除考虑自然因素外,还应综合考虑人为因素对河岸带净污效果的影响。

With the rapid development of social economy,the agricultural non-point source pollution has become one of the main contributors to the deterioration of water quality and eutrophication of water bodies.The riparian buffers play an important role in purifying water quality,which are considered as one of best management practices （BMPs）.The main results of research on the purification mechanism of the riparian buffers,as well as on the influencing factors for the effectiveness of purification,are systematically summarized in this paper.Based on the defects of previous studies,some suggestions are proposed,including broadening the range of research on purification mechanism of the riparian buffers,not limited to the nutrients and surface runoff.Besides,not merely natural factors,but also human factors should be taken into account when it turns to the influencing factors for the effectiveness of purification.