摘要
以江苏省句容市某人工景观湖为对象,选用浮床栽培的香蒲、黄菖蒲、鸢尾、再力花和花叶芦竹进行修复。试验结果表明,水质有了明显改善,透明度也有所增加。其中再力花的长势最为明显,各植物对受污染景观水体溶解氧(DO)含量的提高都起到了积极的作用,对水体中化学需氧量(COD)、总磷(TP)、氨氮(NH3-N)有明显的去除效果,并存在一定的差异。其中对TP净化效果最好的是再力花,去除率最高达到了91.3%;对NH3-N净化效果较好的是黄菖蒲和再力花,去除率分别达到了94.8%和92.2%;各植物对COD的净化能力相对于对TP和NH3-N的净化能力弱,对COD的净化能力相对较强的是香蒲和花叶芦竹,去除率分别为40.2%和38.4%。
Cattail, Iris pseudacorus, Iris, Thalia dealbata and Arundo donax L. var. versicolor cultivated in floating bed were used to repair an artificial landscape lake in Jurong city, Jiangsu province. The results showed that the water quality was im- proved significantly and the transparency was increased. The growth of Thalia dealbata was significant. The plants played posi- tive roles in increasing the content of dissolved oxygen （DO） in the polluted landscape water. There were obvious removal effects of chemical oxygen demand （COD）, total phosphorus （TP） and ammonia nitrogen （NH3-N） in the water to varying degrees. The Thalia dealbata had the best removal effect of TP, with the removal rate of 91.3%. The Iris pseudacorus and Thalia dealbata had the best removal effect of NH3-N, with the removal rate of 94.8% and 92.2%. Each kind of plant had less removal effect of COD than that of TP and NH3-N. The cattail and Arundo donax L. var. versicolor had relatively higher removal rates of COD, with the removal rates of 40.2% and 38.4%.
出处
《湖北农业科学》
2015年第6期1346-1349,共4页
Hubei Agricultural Sciences
基金
江苏省"青蓝工程"项目
江苏农林职业技术学院科技项目(2012kj003)
关键词
植物浮床
生态修复
景观水体
plant floating-bed
ecological restoration
landscape waterbody
