河岸缓冲带植被不同配置对污染负荷削减的研究  

Research on vegetation with different configuration of riparian buffer strips to reduction of pollution load

作　　者：姚立海 

机构地区：[1]辽宁省森林经营研究所,辽宁丹东118002

出　　处：《吉林林业科技》2013年第3期16-20,共5页Journal of Jilin Forestry Science and Technology

基　　金：沈阳市科学技术计划项目(F10-097-3-00);辽宁省自然科学基金(20102234)项目资助

摘　　要：以沈阳市典型河流两岸植被缓冲带为对象,对地表径流中全氮、全磷污染的消减效果进行研究,结果表明:天然植被比人工植被能更好地吸收地表径流中的N、P污染物,林草混合地比单独的林地或草地能更好地吸收污染物;各类型的河岸植被缓冲带对P的削减效果优于对N的削减效果。人工林草地、天然草地以及天然林草地对总氮的削减效果较好,各样地带对总磷的削减率无显著差异。随着污染负荷的增加,不同类型的河岸植被缓冲带对地表径流中的总氮、总磷的削减作用逐渐增强。Typical vegetation riparian buffer strips on both sides of river in Sbenyang had been taken as the ob- jects, and reduction effect research to total nitrogen and phosphorus pollution in surface runoff had been conduc- ted, the results indicated that natural vegetation could absorb N and P pollution in surface runoff better than ar- tificial vegetation, forest- grass land could absorb pollutant better than woodland and grassland; the reduction effect of all types of riparian buffer strips to P were superior to N. Plantation grassland, natural grassland and natural forest grassland reflected a preferably reduction effect of total nitrogen, and there was no significant difference of total phoephorus. With the increase of pollution load, the reduction effect of different types of ripa- rian buffer strips to total nitrogen and phosphorus were ever- increasing.

关 键 词：河岸缓冲带 植被配置 污染负荷 削减 

分 类 号：S759.2[农业科学—森林经理学]