%0 Journal Article
%T Study on impacts of stormwater runoff from road and wood-pavement in Jiuzhaigou Valley<br>九寨沟公路和栈道降雨径流污染负荷过程的研究
%A Zhang Dan
%A Yu Sujun
%A <br>张丹
%A 于苏俊
%J 环境工程学报
%D 2007
%I 
%X The design,execution and interpretation of results from novel rainfall simulation experiments conducted on highroad and wood-pavement in Jiuzhaigou Valley in 2005 are described.These experiments employed adoption of indigenous method rainfall simulation technology to deliver controlled probability of occurrence of 60%,thirty-minute rainfall events to six predefined road and wood-pavement areas.The temporal evolution of total phosphorus loads from each road and wood-pavement surface was also measured downstream of the simulations at three-minute intervals.These experiments provide the first quantitative assessment of the pollutant export characteristics of roads and wood-pavements under representative and quantifiable rainfall conditions.In particular,the study showed road and wood-pavement runoff to be characterized by: a pollutant concentration first flush lasting approximately 3 minutes;and an approximately constant mass loading rate for a set rainfall intensity.It also showed that the majority of pollutant loads from roads and wood-pavements are exported from frequent small rainfall events,as compared to infrequent larger rainfall events.The results are used to provide a reason for constructing the load model of road and wood-pavement that makes use of event mean load instead of event mean concentration adopted by former researchers.
%K artificial rain
%K curve of density
%K curve of accumulative load
%K model of accumulative load<br>人工降雨
%K 浓度曲线
%K 累计负荷曲线
%K 负荷计算模型
%K 九寨沟
%K 公路
%K 栈道
%K 降雨强度
%K 径流污染
%K 负荷过程
%K 研究
%K Valley
%K road
%K runoff
%K impacts
%K 负荷模型
%K 平均浓度
%K 负荷方式
%K 事件
%K 出现频率
%K 常量
%K 负荷率
%K 情况
%K 初始冲刷
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=E1DE5610D3B9733E922CB833A147D95C&yid=A732AF04DDA03BB3&vid=CA4FD0336C81A37A&iid=0B39A22176CE99FB&sid=C5154311167311FE&eid=D3E34374A0D77D7F&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=5