Alleviation of aqueous nitrogen loss from paddy fields by growth and decomposition of duckweed (Lemna minor L.) after fertilization
文献类型: 外文期刊
第一作者: Wang, Yuan
作者: Wang, Yuan;Chen, Xiaodong;Guo, Bin;Liu, Chen;Liu, Junli;Qiu, Gaoyang;Fu, Qinglin;Li, Hua
作者机构:
关键词: Duckweed; Nitrogen; Rice; Floodwater; Runoff loss
期刊名称:CHEMOSPHERE ( 影响因子:8.8; 五年影响因子:8.3 )
ISSN: 0045-6535
年卷期: 2023 年 311 卷
页码:
收录情况: SCI
摘要: Runoff loss of nitrogen from paddy fields has received increasing attention in recent years. Duckweed is an aquatic plant frequently found in paddy fields. In this study, the effects of duckweed (Lemna minor L.) in floodwater on aqueous nitrogen losses from paddy fields were systematically investigated. Results demonstrated that the growth of duckweed decreased total nitrogen concentrations in floodwater and nitrogen runoff loss from paddy fields by 16.7%-18.3% and 11.2%-13.6%, respectively. Moreover, compared with NO3-, NH4+ was preferentially removed by duckweed. N-15 isotope tracer experiments revealed that the growth and decomposition of duckweed acted as a "buffer" against the nitrogen variation in floodwater after fertilization. During the growth of duckweed, leaves were found to be the principal organ to assimilate NH4+ and release NO3 by using non-invasive micro-test technology. Duckweed degradation increased the content of hydrophobic acids and marine humic-like substances in floodwater, which promoted the migration of nitrogen from floodwater to soil. Redundancy analysis and structural equation models further illustrated that pH and temperature variation in floodwater caused by duckweed played a greater role in aqueous nitrogen loss reduction than the nitrogen accumulation in duckweed. This study suggested that the growth of duckweed in paddy fields was an effective supplementary method for controlling aqueous nitrogen loss during agricultural production.
分类号:
- 相关文献
作者其他论文 更多>>
-
GhTPPA_2 enhancement of tobacco sugar accumulation and drought tolerance
作者:Wei, Yunxiao;Khan, Muhammad Aamir;Liang, Chengzhen;Meng, Zhigang;Wang, Yuan;Guo, Sandui;Zhang, Rui;Song, Yuhan
关键词:Trehalose-6-phosphate phosphatase; Drought stress; Transgenic tobacco; GhTPPA_2
-
Adsorption and desorption mechanisms of oxytetracycline on poly(butylene adipate-co-terephthalate) microplastics after degradation: The effects of biofilms, Cu(II), water pH, and dissolved organic matter
作者:Sun, Ying;Wang, Xuejiang;Li, Yuan;Wang, Yuan;Xia, Siqing;Zhao, Jianfu;Sun, Ying;Wang, Xuejiang;Li, Yuan;Xia, Siqing;Zhao, Jianfu;Wang, Yuan;Zhang, Yanan
关键词:Adsorption and desorption; Biodegradation; Oxytetracycline; Poly(butyleneadipate-co-terephthalate); Microplastics
-
Improving the catalytic activity of a detergent-compatible serine protease by rational design
作者:Wang, Xiao;Qin, Xing;Tong, Lige;Zheng, Jie;Dong, Tao;Wang, Xiaolu;Wang, Yuan;Huang, Huoqing;Yao, Bin;Zhang, Honglian;Luo, Huiying;Zhang, Honglian;Luo, Huiying
关键词:
-
Migration, Health Risks, and Source Apportionment of Heavy Metals in Agricultural Soil-Dustfall-Crop Systems in a Typical Watershed of the Taihu Region, China
作者:Chen, Lian;Tang, Cuiming;Luo, Guoqing;Wang, Zhenjiang;Lin, Sen;Zhong, Jianwu;Li, Zhiyi;Wang, Yuan;Zhou, Shenglu;Tang, Cuiming;Luo, Guoqing;Wang, Zhenjiang
关键词:Heavy metal; Soil-dustfall-crop system; Health risks; Source apportionment; Quantitative relationships
-
Engineering Cupriavidus necator H16 for heterotrophic and autotrophic production of myo-inositol
作者:Wang, Xiaolu;Wang, Kaikai;Wang, Lei;Luo, Huiying;Wang, Yaru;Wang, Yuan;Tu, Tao;Qin, Xing;Su, Xiaoyun;Bai, Yingguo;Yao, Bin;Huang, Huoqing;Zhang, Jie;Wang, Lei
关键词:Cupriavidus necator; Metabolic engineering; Myo-inositol; Renewable feedstocks; CO2
-
Toxicological response of Pacific white shrimp Litopenaeus vannamei to a hazardous cyanotoxin nodularin exposure
作者:Duan, Yafei;Xing, Yifu;Huang, Jianhua;Nan, Yuxiu;Li, Hua;Dong, Hongbiao;Duan, Yafei;Duan, Yafei
关键词:Shrimp; Cyanotoxins; Oxidative stress; Intestinal microbiota; Gene transcription; Metabolites
-
Impact of ryegrass cover crop inclusion on soil phosphorus and pqqC- and phoD-harboring bacterial communities
作者:Chen, Xiaodong;Wang, Yuan;Wang, Jianghong;Guo, Bin;Liu, Junli;Qiu, Gaoyang;Li, Hua;Wang, Yuan;Qiu, Gaoyang;Condron, Leo M.;Li, Hua
关键词:Ryegrass-rice rotation; Soil phosphorus fractions; Phosphatase enzyme activities; Inorganic P-solubilizing and organic P; mineralizing bacteria; pqqC and phoD gene communities