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本试验在水温26.6℃~30.6℃下,分别对密度相同的苦草、聚草、轮叶黑藻、伊乐藻、茭草、水浮莲、水花生、浮萍对水体中COD、NH4-N、NO3-N、NO2-N、TP、TN六个指标的最大去除率进行了对比研究。结果表明:在养蟹池塘中种植一定密度的水生植物有利于水体生态环境的改善。
In this experiment, the effects of COD, NH4-N, NH4-N on the water body temperature and water temperature of 26.6 ℃ ~ 30.6 ℃, NO3-N, NO2-N, TP, TN maximum removal rate of the six indicators were compared. The results showed that planting a certain density of aquatic plants in crab ponds was beneficial to the improvement of water environment.