云南星云湖大街河口湖滨湿地修复及净化效果

Journal of Lake Sciences(2007)

Cited 26|Views12
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Abstract
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4.5 hm~2,恢复湖湾沉水植物28.8 hm~2,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 8×10~4m~3/a,SS、BOD_5、COD_(Mn)、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.
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Key words
Lake Xingyun,purification efficiency for wastewater,estuarine wetlands
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