Plateau Urban Wetland Ecological Features and Degenerated Wetland Restoration
Typical wetlands in the suburbs of the plateau city,Shangri-La were selected in light of closed and semi-closed wetland environment and its compound ecosystem features for the purpose of conducting ecological restoration at the scale of fiver basin.The results showed that wetland plants rapidly increased from 8 families,22 genera and 28 species at the initial phase of restoration to 18 families,22 genera and 28 species; the above-ground biomass rose from 318.56 g·m-2 to 507.68 g·m-2; there were significant changes in plant communities on the lakesides and riverbank belts before and after restoration,with the gradual decrease or appearance of pollutant-enduring species,but appearance of the marsh plants,Sparganium simplex and Batrachium bungei communities that have disappeared for many years; the contents of organic matters and total nitrogen in soil increased from 28.85 and 0.79 g·kg-1 before restoration to 50.26 and 1.45 g·kg-1 after restoration,respectively; there were significance decreases in the contents of TN,TP and COD in water body,with the removal rates reaching 76%,84% and 71%,respectively; the transparency of water body was enhanced by 179%.Therefore,the structure and functionalities of wetland ecosystem were improved and restored.
plateau city wetland features species biodiversity water quality purification ecological restoration effects
Tian Kun Xiao Derong Yang Qian Li Yin Yue Haitao Lai Jiandong
National Plateau Wetlands Research Center, Kunming 650224;College of Environmental Science and Engin National Plateau Wetlands Research Center, Kunming 650224 College of Environmental Science and Engineering, Southwest Forestry University, Kunming 650224
国际会议
International Workshop on Integrated Wetlands Management (综合湿地管理国际研讨会)
沙湖
英文
87-101
2012-04-26（万方平台首次上网日期，不代表论文的发表时间）