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引用本文:李荫玺,胡耀辉,王云华,祁云宽,唐芳,刘俊,杨林.云南星云湖大街河口湖滨湿地修复及净化效果.湖泊科学,2007,19(3):283-288. DOI:10.18307/2007.0309
LI Yinxi,HUYaohui,WANG Yunhua,QI Yunkuan,TANG Fang,LIU Jun,YANG Lin.Wetland restoration and its purification efficiency in estuary of Dajie River, Lake Xingyun, Yunnan Province. J. Lake Sci.2007,19(3):283-288. DOI:10.18307/2007.0309
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云南星云湖大街河口湖滨湿地修复及净化效果
李荫玺1,胡耀辉2,王云华1,祁云宽1,唐芳1,刘俊1,杨林1
1.云南省玉溪市环境科学研究所,玉溪 653100;2.中国科学院南京地理与湖泊研究所,南京 210008
摘要:
星云湖入湖污染物负荷量80%来自面源, 而河道是输送污染物的主要通道, 为了削减入湖污染物, 在大街河口末端修复湖滨湿地4.5hm2, 恢复湖湾沉水植物28.8hm2, 对表流湿地及沉水植物的净化效果进行了试验研究。研究结果表明, 由于水生植物庞大的表面积吸附、分解和吸收作用、水质净化水质效果十分明显, 净化大街河水317.8×104m3/a, SS、BOD5、CODMn、TN、TP的去除率分别为82.8%、60.1%、52.8%、49.2%、40.7%。河口湖滨湿地的修复不仅净化了水质, 而且改善了河湾景观, 恢复了湖泊生物多样性。
关键词:  星云湖  河口湿地  水质净化
DOI:10.18307/2007.0309
分类号:
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Wetland restoration and its purification efficiency in estuary of Dajie River, Lake Xingyun, Yunnan Province
LI Yinxi,HUYaohui,WANG Yunhua,QI Yunkuan,TANG Fang,LIU Jun,YANG Lin
Abstract:
About 80 percents of pollution of Lake Xingyun come from non-point sources, and rivers account primarily for transporting pollutants into Lake Xingyun.To reduce the pollutants, wetlands with an area of 4.5 ha was restored in estuarine areas of Dajie River.The total amount of purified river water was 317.8×104m3/a.It was showed that the purification efficiency was significant via the combined mechanism of absorption, decomposition and assimilation of aquatic plants.The removal rates of SS, B0D5, C0DMn, TN and TP were 82.8%, 60.1%, 52.8%, 49.2%, and 40.1%, respectively.
Key words:  Lake Xingyun  estuarine wetlands  purification efficiency for wastewater
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