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[1]NAN Nan,ZHANG Bo,LI Hai-dong,et al.Water Quality Purification Ability of Main Wetland Plant Community in Hongze Lake[J].Research of Soil and Water Conservation,2011,18(01):228-231,235.

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Water Quality Purification Ability of Main Wetland Plant Community in Hongze Lake

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 01 Page number: 228-231,235 Column: Public date: 2011-02-20

Title:: Water Quality Purification Ability of Main Wetland Plant Community in Hongze Lake

Author(s):: NAN Nan^1,2, ZHANG Bo², LI Hai-dong³, ZHANG Jin-chi²; 1. Department of Environment Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221008, China;
2. College forest Resource and Environment, Nanjing Forestry University, Nanjing 210037, China;
3. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China

Keywords:: aquatic plants; water quality purification; wetland; Hongze lake

CLC:: Q146;X173

DOI:: -

Abstract:: The quality purification ability of different hygrophytes communities to eutrophication water was studied through the experimental enclosure of Hongze lake, and the different hygrophytes communities are Phragmites australis, Nelumbo nucifera, Trapa bispinosa, Eichhornia crassipes, Vallisneria natans and Ceratophyllum demersum. The results showed that the elimination ability of main wetland plant community to TN in eutrophication water body follwing the order of Vallisneria natans(78.56%), Eichhornia crassipes(66.26%), Ceratophyllum demersum(57.61%), Nelumbo nucifera(50.18%), Trapa bispinosa(46.04%), Phragmites australis(37.39%), the elimination ability to TP follwing the order of Vallisneria natans(61.84%), Phragmites australis(46.55%), Trapa bispinosa(44.83%), Ceratophyllum demersum (45.00%), Nelumbo nucifera(39.66%), Eichhornia crassipes(25.17%), the elimination ability to COD_Mn follwing the order of Ceratophyllum demersum(61.33%), Vallisneria natans(55.56%), Trapa bispinosa(52.44%), Nelumbo nucifera(47.11%), Eichhornia crassipes (27.77%), Phragmites australis(23.33%). And the submerged plants, Vallisneria natans and Ceratophyllum demersum, have a great role to purify the nutritive elements in water and produce oxygen. And the purification effect of Trapa community is quite stable. The community of Phragmites australis has a better purification effect to total phosphorus, but to the other nutritive indicators of eutrophication water, it is much weaker.

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