摘要
采用人工生态浮岛技术和种植水生植物相结合的方式,在池塘种植空心菜和莲藕以控制池塘富营养化水质,对富营养化状态采用综合加权指数法进行评价。结果表明,在富营养化池塘中,植物的种类和数量与水体中氮、磷等的去除率呈显著正相关,即提高植物的种类和数量可以提高水质的净化能力,使高锰酸盐指数和浮游植物叶绿素a也明显下降,富营养化池塘的水质得到了明显改善。
The control of eutrophic water in ponds were tested by culturing water spinach on artificial floating island and aguatic plant in water.TLI method was adopted to perform an assessment of current eutrophication status. The results indicated that the amount and type of the plant correlated positively with the removal rates of nitrogen and phosphorus in pond water,and increase of the amount and type of the plant could increase removal rate,permanganate index and chlorophyll a also significantly decreased.Results showed that water quality of eutrophic ponds was improved significantly.
出处
《湖北农业科学》
2015年第14期3478-3481,共4页
Hubei Agricultural Sciences
基金
国家大宗淡水鱼产业技术体系武汉综合试验站项目(CARS-46-39)
湖北省水产科学研究所所长基金项目(20130112SDYZ-040)
