The ability of pollution purification by four kinds of substrate materials(soil,vermiculite,cinder and detritus)in pots as simulated subsurface constructed wetlands was studied.

• 采用盆栽试验模拟潜流型人工湿地,研究了土壤、蛭石、煤渣和碎石四种人工湿地基质不同组合净化养猪场污水的能力。