4[2] Billy C.Wolverton. The water Hyacinth:From Prolific Pest to Potential Prouider Ambio.1979.
5[1]Cooper P, Smith M, Maynard H. The design and performance of a nitrifying vertical-low reed bed treatment system[J]. Wat. Sci. Tech., 1997, 35(5): 215~221.
6[2]Schreijer M, Xampf R, Toet S, et al. The use of constructed wetlands to upgrade treated sewage effluents before discharge to natural surface water in Texel island, The Netherlands: pilot study[J]. Wat. Sci. Tech., 1997, 35(5): 231~237.
7[3]Coleman J, Hench K, Garbutt K, et al. Treatment of domestic wastewater by three plant species in constructed wetlands[J]. Water, Air, and Soil Pollution, 2001, 128: 283~295.
8[4]Winthrop C A, Paul B H, Joel A B, et al. Temperature and Wetland Plant Species Effects on Wastewater Treatment and Root Zone Oxidation[J]. Journal of Environmental Quality, 2002, 31: 1010~1016.
9[5]Li S R, Ding T, Wang S. Reed-bed treatment for municipal and industrial wastewater in Beijing, China[J]. J. Chart. Inst. Water Environ. Manag,1995, 9: 581~588.
10[6]Jonathan K R and Sarah K L. Flow pattern analysis of constructed wetlands treating landfill leachate[J]. Wat. Sci. Tech., 1999,40(3): 271~278.