Nitrous oxide flux in constructed wetland with/without plant

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Sun, Hongying^1,2 ; Xin, Quanwei^1 ; Lin, Xingsheng^2 ; Ma, Zhihui^1 ; Xiao, Liyun^3 ; Liu, Dong^4 ; Lan, Siren^1

Forestry College, Fujian Agriculture and Forestry University, Fuzhou

350002, China^1

National Engineering Research Center of Juncao, Fujian Agriculture and Forestry University, Fuzhou

350002, China^2

Regional Management Office for Quality and Safety of Agricultural Products, Anqiu

262100, China^3

Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing

210042, China^4

关键词: Constructed wetlands;    Microbial biomass;    Nitrous oxide;    Nitrous oxide emissions;    Phragmites australis;    Plant species;    Total nitrogen content;    Total nitrogen removal;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/2/022016/pdf
DOI  :  10.1088/1755-1315/199/2/022016

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

To investigate the effect of plant presence on the nitrous oxide flux, we established constructed wetland using two common plant species. Results showed that nitrous oxide emissions have significant difference between constructed wetlands with and without plants, 7567.64 ug N2O m-2 d-1 and 492.67 ug N2O m-2 d-1 respectively (P0.05). The nitrous oxide emissions in constructed wetlands planted with Phragmites australis and Lythrum salicaria had significant differences, 13328.72 ug N2O m-2 d-1 and 1806.56 ug N2O m-2 d-1 respectively (P0.05). Hence, plant presence and plant species are important factors in regulating nitrous oxide emissions and total nitrogen removal in constructed wetlands.