绿萝对校园景观水体的水质改善作用研究

Improvement of Epipremnum aureum on Water Quality of Campus Landscape Water Body

为改善校园景观水体的富营养化问题,选取绿萝作为试验对象,与无绿萝的对照组进行比对;同时选取不同的绿萝种植密度来进行横向对比,分析绿萝对校园景观水体的富营养化改善作用。结果表明:当种植密度为9株时,绿萝对景观水体中TN、TP、CODCr和NH3-N的去除率分别为63.4%、57.9%、74.3%和47.9%,均高于无绿萝的对照组;各项富营养化指标的去除率在一定浓度范围内,与绿萝的种植密度成正比关系。由此可见,绿萝对景观水体的水质改善具有一定的价值,可在校园景观水体的污染治理中应用推广。

To improve the campus landscape water body eutrophication problem, Epipremnum aureum was selected as test object, comparing with the blank control group; at the same time selecting different planting densityEpipremnum aureum to carry out horizontal comparison, ana- lyzing the effect of Epipremnum aureum on campus landscape water body eutrophication. The results show that, when planting density of 9 strains, the removal rate of TN, TP, CODcr and NH3-N in landscape water is 63.4%, 57.9%, 74.3 % and 47.9% respectively, higher than the blank control group; in the certain concentration range, the removal rate of the eutrophication is proportional to the planting density. Thus it can be seen, Epipremnum aureum for landscape water body quality improvement has a certain value, and it can be applied in the pollution control of campus landscape water body.