%0 Journal Article
%T In-situ remediation of polluted water body by planting hydrophytes<br>利用水生植物原位修复污染水体
%A FANG Yun-ying
%A YANG Xiao-e
%A CHANG Hui-qing
%A PU Pei-min
%A <br>方云英
%J 应用生态学报
%D 2008
%I 
%X In an experimental enclosure system, floating plant Eichhornia crassipes was planted in summer and submersed plant Elodea nutalli was planted in winter to reestablish water ecosystem, and to investigate the effects of the hydrophytes on the removal of nitrogen and phosphorus from polluted water body and the improvement of water transparency. The results showed that compared with the control and native pond water, the water body planted with hydrophytes had a low level of nutrients. E. crassipes had a fast growth, with its covered area increased from 100 m2 to 470 m2 in the first 15 days, and to 65% of the water area after 44 days. The total nitrogen, ammonium nitrogen, nitrite nitrogen, CODMn and chlorophyll a decreased to a lower level, and the water transparency increased significantly, reaching to a depth of 1.7-1.8 m (i.e., to the bottom of the pond). After October, the total phosphorus kept on about 0.1 mg L(-1). Due to the increased water transparency, E. nutalli became the dominant species and covered 1/3 of the water area, playing an important role in purifying water quality, keeping water physicochemical properties in good status, and improving water transparency. It was concluded that planting hydrophytes in polluted water body could efficiently reduce its nutrients level and control the overgrowth of algae, being an important way in improving the water quality of eutrophicated water body.
%K Eichhornia crassipes
%K Elodea nutaUi
%K total nitrogen
%K total phosphorus
%K transparency<br>凤眼莲
%K 伊乐藻
%K 总氮
%K 总磷
%K 透明度
%K 利用
%K 水生植物
%K 原位修复
%K 污染水体
%K planting
%K water
%K body
%K 湖泊水质
%K 富营养
%K 改善
%K 增长
%K 浮游植物
%K 控制
%K 水体营养盐
%K 植被恢复
%K 明水
%K 作用
%K 高透明度
%K 稳定
%K 净化水质
%K 水域
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=22C8214A697783B1A0F9586BF8C4A6D1&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=0B39A22176CE99FB&sid=8CCD0401CC9AE432&eid=216EFB25F7F834CC&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=16&reference_num=26