The correlations between system treatment efficiencies and aboveground emergent macrophyte nutrient removal for the Hsin-Hai Bridge phase II constructed wetland

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题名:	The correlations between system treatment efficiencies and aboveground emergent macrophyte nutrient removal for the Hsin-Hai Bridge phase II constructed wetland
作者:	Ko, CH (Ko, Chun-Han) Lee, TM (Lee, Tsai-Ming) Chang, FC (Chang, Fang-Chih) Liao, SP (Liao, Shu-Ping)
贡献者:	Dept Geog
关键词:	Constructed wetlands Emergent macrophytes Nutrient removal Total nitrogen Total phosphorous
日期:	2011-05
上传时间:	2013-01-18 14:11:09 (UTC+8)
摘要:	This study investigated the correlations between the system treatment efficiencies and total nitrogen (TN) and total phosphorus (TP) accumulations of aboveground tissues of the wetland macrophytes of Hsin-Hai Bridge phase II constructed wetland. Among 19 emergent macrophytes studied, the optimal TN contents, 3.82% and 3.52% (w/w) were found for water spinach (Ipomoea aquatica) and Ludwigia x taiwanensis; while the optimal TP contents were found for the above two macrophytes at 0.64% and 0.83% (w/w). The accumulations of total plant TN and TP uptakes increased from 213 to 403 kg and 41 to 75 kg from March 2007 to the peak at September 2007, respectively. The TN ratios between plant tissue accumulations and the removals from the influents were 1.57%, 2.76%, 1.51% and 3.2% from March 2007 to March 2008. In the same period, the TP ratios between plant tissue accumulations and the removals from influents were 1.71%, 8.0%, 0.58% and 10.1%. The roles of the uptakes by aboveground portions of emergent macrophytes in system nutrient removals from the influents were more significant during growth seasons. (C) 2010 Elsevier Ltd. All rights reserved.
關聯:	BIORESOURCE TECHNOLOGY Volume: 102 Issue: 9 Pages: 5431-5437
显示于类别:	[Department of Geography & Graduate Institute of Earth Science / Geography ] journal articles

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