不同水生植物组合对水体氮磷去除效果的模拟研究

选择4种景观效果良好的水生植物水罂粟、黄菖蒲、三白草和黑藻，构建9种不同的水生植物组合，在模拟富营养化水体环境条件下，研究了不同水生植物组合对富营养化水体的净化效果。结果表明:供试植物在富营养化水体中均能正常生长，且对富营养化水体中的氮磷均有一定的吸收，对氮的累积率最高可达53%，对磷的累积率最高可达42%；单种植物对氮、磷的去除贡献率分别为13.79%~65.00%、18.64%~59.63%，复合植物对氮、磷的去除贡献率分别为39.61%~72.59%、9.72%~59.89%；单种植物去氮能力依次为:黑藻三白草黄菖蒲水罂粟，复合植物中，结构复杂的组合较结构简单的组合具有更强的去除氮磷的能力。试验表明，这4种植物及其组合在城市景观水体净化中均有一定的实际推广价值。 

Nitrogen and phosphorus removal effects of different hydrophyte combinations under simulated eutrophic conditions.

Four species of beautiful aquatic plants,including Hydrocleys nymphoides,Iris pseudacorus,Saururus chinensis and Hydrilla verticillata,were chosen to form nine different aquatic plant combinations.The removal effects of nitrogen and phosphorus from eutrophic water containing the above aquatic plant combinations were examined under the controlled eutrophic conditions.The results showed that,the plants could not only grow well in the eutrophic water but also have the removal effects for total nitrogen(TN) and...