冀北山地河岸缓冲带净水效果研究  

The Water Purification Effect of Riparian Buffer Zone in Mountainous Area of North Hebei

作　　者：田素平 张宽义[2] 王雄宾 

机构地区：[1]河北省水土保持工作总站,河北石家庄050011 [2]河北省水利水电勘测设计研究院,河北石家庄050081 [3]河北省水利科学研究院河北省农业节水工程技术研究中心,河北石家庄050051

出　　处：《安徽农业科学》2015年第17期263-264,284,共3页Journal of Anhui Agricultural Sciences

基　　金：河北省水利厅项目(2014-25)

摘　　要：[目的]充分了解不同河岸植被缓冲带对地表径流污染物的去除效果。[方法]采用人工模拟地表径流的方法,选取冀北山地5种不同植被类型河岸植被缓冲带为研究对象,分析了其对地表径流中化学需氧量(COD)、总氮(TN)、总磷(TP)的去除效果。[结果]在5种不同植被类型河岸植被带中,随着河岸缓冲带宽度的增加,各缓冲带对地表径流中COD、TN、TP的去除率基本呈增加趋势,但对各污染物的去除规律各异,华北落叶松林能在较窄的距离内较迅速去除径流中COD、TN、TP。[结论]各标准地对地表径流中不同污染物的削减各有优点,在对受污染的河流进行生态植被修复时,应当充分考虑当地河流水质污染特点选择植被类型。冀北山地在建设较窄河岸缓冲带时,可以优先考虑采用华北落叶松林。[ Objective ] To fully understand the elimination effects of riparian vegetation buffer zones on surface runoff pollutants. [ Method ] The removal effects of different riparian vegetation buffer zones on chemical oxygen demand（ COD）, total nitrogen （TN） and total phosphorus （TP） in simulated polluted-surface runoff were investigated in mountainous area of north Hebei. [ Result] The surface runoff pollutant removal rates were increasing gradually with the vegetation belt width increases in the 5 kinds of vegetation riparian buffer zone, but the change laws of removal rate with the belt width increases were different in the different vegetation riparian buffer zones. Different riparian vegetation buffer zones have different elimination effects on different pollutants in surface runoff. Larch forest can remove the COD, TN and TP quickly in a nar- row range. [ Conclusion] It is important to take the environment pollution characteristics into consideration in ecological recovery and recon- struction of riparian vegetation buffer zones, and it should be applied in the narrower riparian buffer zone construction inmountainous area of north Hebei.

关 键 词：河岸缓冲带 植被类型 削减效果 径流污染物 冀北山地 

分 类 号：S181.3[农业科学—农业基础科学]