垂直潜流湿地低碳脱氮过程中的分层效应
张曦冉,高桂兰,陈帅,郭耀广,梁波,关杰

Stratification effect in the nitrogen removal process from low carbon water in vertical subsurface flow constructed wetland
Xiran Zhang,Guilan Gao,Shuai Chen,Yaoguang Guo,Bo Liang,Jie Guan
图4 人工湿地上下层中NO3--N浓度随实验时间的变化