Pathways and biological mechanisms of N2O emission reduction by adding biochar in the constructed wetland based on 15N stable isotope tracing
文献类型: 外文期刊
第一作者: Huang, Lei
作者: Huang, Lei;Xiong, Haifeng;Jiang, Chunli;He, Jinke;Lyu, Wanlin;Chen, Yucheng;Huang, Lei;Xiong, Haifeng;Jiang, Chunli;He, Jinke;Lyu, Wanlin;Chen, Yucheng;Huang, Lei;Chen, Yucheng;Huang, Lei
作者机构:
关键词: Constructed wetland; Biochar; Nitrous oxide; Emission pathway; Functional microbes; Enzyme activity
期刊名称:JOURNAL OF ENVIRONMENTAL MANAGEMENT ( 影响因子:8.7; 五年影响因子:8.4 )
ISSN: 0301-4797
年卷期: 2023 年 342 卷
页码:
收录情况: SCI
摘要: Constructed wetlands (CWs) added with biochar were built to study pollutant removal efficiencies, nitrous oxide (N2O) emission characteristics, and biological mechanisms in nitrogen transformation. The results showed that biochar addition enhanced the average removal rates of ammonium (NH4+-N), total nitrogen, and chemical oxygen demand by 4.03-18.5%, 2.90-4.99%, and 2.87-5.20% respectively while reducing N2O emissions by 25.85-83.41%. Based on 15N stable isotope tracing, it was found that nitrification, denitrification, and simultaneous nitrification and denitrification were the main processes contributing to N2O emission. The addition of biochar resulted in maximum reduction rates of 71.50%, 80.66%, and 73.09% for these three processes, respectively. The relative abundance of nitrogen-transforming microbes, such as Nitrospira, Dechloromonas, and Denitratisoma, increased after the addition of biochar, promoting nitrogen removal and reducing N2O emissions. Adding biochar could increase the functional gene copy number and enzyme activity responsible for nitrogen conversion, which helped achieve efficient NH4+-N oxidation and eliminate nitrite accumulation, thereby reducing N2O emissions.
分类号:
- 相关文献
作者其他论文 更多>>
-
Simultaneous change of microworld and biofilm formation in constructed wetlands filled with biochar
作者:Zhong, Hui;Jiang, Chunli;He, Xi;He, Jinke;Zhao, Yaqi;Chen, Yucheng;Huang, Lei;Zhong, Hui;Jiang, Chunli;He, Xi;He, Jinke;Zhao, Yaqi;Chen, Yucheng;Huang, Lei;Huang, Lei;Huang, Lei
关键词:Constructed wetland; Biochar; Biofilm; Extracellular polymeric substance; Extracellular protein
-
Characterization of Gut Microbiota Compositions along the Intestinal Tract in CD163/pAPN Double Knockout Piglets and Their Potential Roles in Iron Absorption
作者:Zhang, Xiu-Ling;Xu, Kui;Xu, Chang-Jiang;Che, Jing-Jing;Liu, Zhi-Guo;Wang, Bing-Yuan;Mu, Yu-Lian;Li, Kui;Zhang, Xiu-Ling;Zhou, Yan-Rong;Xu, Si;Xiong, Yu-Jian;Xiao, Shao-Bo;Zhou, Yan-Rong;Xu, Si;Xiong, Yu-Jian;Xiao, Shao-Bo;Xu, Song-Song;Huang, Lei;Li, Kui
关键词:16S rRNA; iron absorption; gut microbiota; piglet; carboxylic acids
-
PCSK9-D374Y Suppresses Hepatocyte Migration through Downregulating Free Cholesterol Efflux Rate and Activity of Extracellular Signal-Regulated Kinase
作者:Huang, Lei;Cheng, Ying;Li, Kui;Mu, Yulian
关键词:
-
Strategies to alleviate clogging in constructed wetlands: What can be learned from the microbial fuel cell coupled membrane bioreactor?
作者:Huang, Lei;He, Jinke;Jiang, Chunli;Weng, Sijia;Zhao, Fang;Zhong, Hui;Chen, Yucheng;Huang, Lei;He, Jinke;Jiang, Chunli;Weng, Sijia;Zhao, Fang;Zhong, Hui;Chen, Yucheng;Huang, Lei;Chen, Yucheng;Chen, Yucheng
关键词:Constructed wetland; Bioelectrochemistry; Microbial fuel cell; Biological clogging; Extracellular polymeric substances
-
MAE-seq refines regulatory elements across the genome
作者:Zhu, Xiusheng;Huang, Qitong;Huang, Lei;Luo, Jing;Li, Qing;Kong, Dashuai;Deng, Biao;Gu, Yi;Wang, Xueyan;Li, Chenying;Kong, Siyuan;Zhang, Yubo;Huang, Qitong;Zhang, Yubo
关键词:
-
Characterization of A-to-I Editing in Pigs under a Long-Term High-Energy Diet
作者:Yang, Liu;Huang, Lei;Li, Kui;Mu, Yulian;Li, Kui;Mu, Yulian;Li, Kui
关键词:pig; high-energy diet-induced; A-to-I editing; gene regulation
-
Multiple domestications of Asian rice
作者:Jing, Chun-Yan;Zhang, Fu-Min;Wang, Xiu-Hua;Wang, Mei-Xia;Zhou, Lian;Cai, Zhe;Han, Jing-Dan;Geng, Mu-Fan;Yu, Wen-Hao;Jiao, Zi-Hui;Huang, Lei;Liu, Rong;Zheng, Xiao-Ming;Meng, Qing-Lin;Ren, Ning-Ning;Zhang, Hong-Xiang;Du, Yu-Su;Wang, Xin;Qiang, Cheng-Gen;Zou, Xin-Hui;Ge, Song;Jing, Chun-Yan;Zhang, Fu-Min;Wang, Xiu-Hua;Wang, Mei-Xia;Geng, Mu-Fan;Yu, Wen-Hao;Jiao, Zi-Hui;Meng, Qing-Lin;Ren, Ning-Ning;Zhang, Hong-Xiang;Du, Yu-Su;Wang, Xin;Qiang, Cheng-Gen;Zou, Xin-Hui;Ge, Song;Liu, Rong;Zheng, Xiao-Ming;Gaut, Brandon S.
关键词: