浮水植物型人工湿地对水稻田排水中氮磷污染的控制效果(英文)

• 作 者: 方荣杰 谭茂兰
• 机 构: 桂林理工大学环境科学与工程学院,桂林理工大学广西环境工程与保护评价重点实验室
• 出 处: Meteorological and Environmental Research
• 发表日期: 2010年11期
• 关键词: Floating plants Constructed wetland TN TP Purification effect China

[Objective] The control effect of floating plants constructed wetland to nitrogen and phosphorus pollution from rice field drainage was studied.[Method] Firstly,the characteristic of floating plants and the purification principle of pollutants were introduced,and then purification effect was analyzed through controlling nitrogen and phosphorus pollution from rice field drainage by floating plants constructed wetland.[Result] By means of floating plants constructed wetland,the average removal rate of total nitrogen(TN) from double-season early and late rice field drainage reached 52.17% and 62.23%,respectively,while that of total phosphorus(TP) was 45.69% and 74.37%,respectively,with better removal effect.Meanwhile,floating plants have ecological and ornamental value to some extent.[Conclusion] Floating plants constructed wetland could not only control nitrogen and phosphorus pollution in field drainage effectively but also keep farmland ecosystem in healthy state.