Performance of a Constructed Wetlands in Treating Urban Stormwater Runoff
Performance of a Constructed Wetlands in Treating Urban Stormwater Runoff
复制标题
人工湿地处理城市雨水径流的效果
DOI：
10.2175/106143000x137518
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发表时间：
2000
影响因子：
3.1
通讯作者：
P. Kenel
中科院分区：
文献类型：
--
作者：
James N. Carleton;T. Grizzard;A. Godrej;Harold Post;L. Lampe;P. Kenel
对弗吉尼亚州北部一个住宅联排别墅综合体处理雨水径流的人工湿地的污染物去除性能进行了调查。 1996 年 4 月至 1997 年 5 月期间 33 次径流事件的成分事件平均浓度是根据在设施入口和出口收集的流量加权复合样本测量的。根据代表邻近林区未测量的地面排水的有限数量的取样结果，大多数成分的估计清除量是积极的，并且通常超过在附近的配套湿地研究地点获得的清除量，这与基于两个地点湿地面积与排水面积的相对比率的预期一致。对于流入量小于沼泽最大容量的 22 场风暴的子集，所有成分的中位负荷去除量更大。 1996 年春季正磷酸盐磷和氨的去除明显好于 1997 年春季。蒸渗仪数据对此提出了一个可能的解释，即 1997 年浅层沉积物中出现了厌氧条件。基流中氧化氮的出口浓度始终低于风暴样品中的浓度，表明该成分的去除主要发生在风暴事件之间，而不是风暴事件期间。
An investigation was conducted on the pollutant removal performance of a constructed wetlands treating stormwater runoff from a residential townhome complex in northern Virginia. Constituent event mean concentrations for 33 runoff events between April 1996 and May 1997 were measured based on flow‐weighted composite samples collected at the facility's inlet and outlet. With the results from a limited number of grab samples representing ungauged overland drainage from an adjacent wooded area, estimated removals were positive for most constituents and typically exceeded those obtained at a nearby companion wetland study site, consistent with expectations based on the relative ratios of wetland area to drainage area at the two sites. Median load removals of all constituents were greater for a subset of 22 storms that had inflow volumes less than the maximum volume of the marsh. Orthophosphate phosphorus and ammonia removals were significantly better during spring of 1996 than spring of 1997. Lysimeter data suggest a possible explanation for this, which is development of anaerobic conditions in the shallow sediments in 1997. Outlet concentrations of oxidized nitrogen were consistently lower in base flow than in storm samples, suggesting that removal of this constituent occurred primarily between, rather than during, storm events.
生态系统中主要离子的大气沉降和冠层相互作用（日文）
DOI：
--
发表时间：
2007
期刊：
Forest Hydrology(Morikita Publishing Co. Ltd., Tokyo)
影响因子：
--
作者：
Chiwa;M
通讯作者：
M