地沟式污水土地处理+人工湿地中植物对磷的去除效果

采用盆栽实验和中试实验系统，研究了地沟式土地处理系统和人工湿地中不同植物对磷的去除效率。选取贵州省典型的7种植物——美人蕉、芋头、八仙花、小玉竹、杜鹃、菖蒲、岩豆藤作为供试物。结果表明，7种试验植物对生活污水中的磷均有很高的净化率，其中以芋头、菖蒲和岩豆藤等3种植物对磷的净化效率最高。文章同时还对中试各处理槽的不同位置和深度的土壤中的微生物种类和数量进行了分析，进一步阐述了地沟式土地处理系统和人工湿地中植物的除磷机理。

Dephosphorization efficiency of plant in underground-ditch-pattern soil treament and artificial wetland

In the experiments of potted plant and middle-system, we researched dephosphorization efficiency of different plants in underground-ditch-pattern soil treatment and artificial wetland. We elected seven representative plants of Guizhou provinceCanna, Taro, Hydrangea, Small Jade Bamboo, Cuckoo, Calamus, Rock Bean Bine. Results show that the seven plants all have high removal rate of TP and the best plants are Taro, Calamus and Rock Bean Bine. In the same time, we also analysed the kinds and amounts of microbes in the soil of different place and deepness of middle-system. We analysed the distributing rule of bacteria, radiation bacteria, mildew, microzyme and clarifies furtherly the dephosphorization mechanism of under ground-ditch-pattern soil treatment and artificial wetland.