%0 Journal Article
%T Effects of slope and width of riparian buffer strips on runoff purification<br>不同坡度缓冲带径流污染净化效果及其最佳宽度
%A WANG Min
%A WU Jian-Qiang
%A HUANG Shen-Fa
%A WU Jian
%A <br>王敏
%A 吴建强
%A 黄沈发
%A 吴健
%J 生态学报
%D 2008
%I 
%X A series of pilot experiments of runoff pollution purification were conducted on riparian buffer strips covered with Cynodon dactylon at different slopes of 2, 3, 4, and 5%. Results showed that there is a significant relationship between slope gradient and intercept rate of suspended solid (SS) carried by runoff. 84% of SS was trapped on the 19m long strip with the slope of 2%, while 70% of SS removal on the slope of 5%. TN and TP removal rates were higher at the slope of 2% than that at 5%, in which average concentrations of seepage at the slope of 2% were lowed up to 1.63 mg N·L-1 and 0.1 P mg·L-1 respectively, while effluent TPs in all experiment treatments were met surface water criteria Class IV (GB3838-2002) with influent TPs varied from 0.9-1.0 mg·L-1. Results also showed that the optimal strip width was 16.1m at the slope of 2%, compared to 24.7m at 5%.
%K 滨岸缓冲带
%K 坡度
%K 面源污染
%K 最佳宽度
%K 上海
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=79F2B2A8C19F6956672234D7C4E6A254&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=F3090AE9B60B7ED1&sid=A9915908C42611B1&eid=C887B1893454CC4B&journal_id=1000-0933&journal_name=生态学报&referenced_num=10&reference_num=11