主题：【已应助】求助4篇文献，谢谢大家

【篇号】:1
【作者】Larsen, E. and Greenway, M.
【文章标题】Quantification of biofilms in a sub-surface flow wetland and their role in nutrient removal.
【期刊名，年份，卷（期），起止页码】Water Science and Technology 2004. 49(11-12):115-122.       
【全文链接】http://www.iwaponline.com/wst/04911/wst049110115.htm
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【篇号】:2
【作者】Allen, W. C., Hook, P. B., Biederman, J. A. and Stein, O. R.
【文章标题】 Temperature and wetland plant species effects on wastewater treatment and root zone oxidation.
【期刊名，年份，卷（期），起止页码】Journal of Environmental Quality 2002. 31(3):1010-1016.       
【全文链接】https://dl.sciencesocieties.org/publications/jeq/abstracts/31/3/1010
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【篇号】:3
【作者】Jenssen, P. D., Maehlum, T. and Krogstad, T.
【文章标题】Potential use of constructed wetlands for waste-water treatment in northern environments.
【期刊名，年份，卷（期），起止页码】 Water Science and Technology 1993. 28(10):149-157.       
【全文链接】http://www.iwaponline.com/wst/02810/wst028100149.htm
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【篇号】:4
【作者】Stein, O. R. and Hook, P. B.
【文章标题】Temperature, plants, and oxygen: How does season affect constructed wetland performance?
【期刊名，年份，卷（期），起止页码】Journal of Environmental Science and Health, Part A 2005. 40(6-7):1331-1342.       
【全文链接】http://www.tandfonline.com/doi/abs/10.1081/ESE-200055840#.Ug8M1xLLjB1
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