中文摘要：

试验研究了人工湿地中水力停留时间，植物、填料和水力流态对净化效率和氧状态的影响。结果表明，湿地溶氧和净化效果受水力停留时间影响较大，最佳停留时间时溶解氧出现最低值；植物种类的不同将影响湿地供氧；填料孔隙率和表面性质的不同将直接影响其复氧效果；垂直流人工湿地独特的结构设计和水力流态使其更有利于湿地内部的供氧。

英文摘要：

The effect of hydraulic retention time （HRT）, plant, packing and hydraulic flow state on purification efficacy and oxygen state was studied in artificial wetland. The results showed that oxygen dissolving and purification efficacy were affected more obviously by HRT; when being optimal HRT, the lowest value of dissolved oxygen appeared; the unique structural design and hydraulic flow state in wetland with vertical flow made it to be more advantageous to oxygen supply in internal wetland.