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Lin Wei, Ding Junjun, Xu Chunying, Zheng Qian, Zhuang Shan, Mao Lili, Li Qiaozhen, Liu Xiaoying, Li Yuzhong. Evaluation of N2O sources after fertilizers application in vegetable soil by dual isotopocule plots approach. ENVIRONMENTAL RESEARCH. DOI: 10.1016/j.envres.2020.109818

来源:ENVIRONMENTAL RESEARCH 发布时间:2020-09-17 作者:林伟 点击数:

标题: Evaluation of N2O sources after fertilizers application in vegetable soil by dual isotopocule plots approach
作者: Lin, W (Lin, Wei); Ding, JJ (Ding, Junjun); Xu, CY (Xu, Chunying); Zheng, Q (Zheng, Qian); Zhuang, S (Zhuang, Shan); Mao, LL (Mao, Lili); Li, QZ (Li, Qiaozhen); Liu, XY (Liu, Xiaoying); Li, YZ (Li, Yuzhong)
来源出版物: ENVIRONMENTAL RESEARCH  卷: 188  文献号: 109818  DOI: 10.1016/j.envres.2020.109818  出版年: SEP 2020  
影响因子 (2019 年): 5.715
摘要: Nitrogen (N) fertilizer is the major deriver of nitrous oxide (N2O) emissions in agricultural soil. In the vegetable fields in China both inorganic and organic fertilizers are largely applied as basic sources of nitrogen. Identifying the effects of fertilizer type on soil microbial activities involved in N2O emissions would be of great help for future development of N2O reduction strategies. N2O isotopocule deltas, including delta N-15(bu)lk, delta O-1(8) and SP (the N-15 site preference in N2O), have been used to analyze microbial pathways of N2O production under different treatments, including bio-organic fertilizer treatment, half bio-organic fertilizer and half urea (mixed fertilizer) treatment, urea treatment and no fertilizer treatment. We measured environmental factors, N2O fluxes and N2O isotopocule deltas to evaluate the dynamics of N2O emissions and constructed the dual isotopocule plots (delta N-15(bu)lk vs. SP and delta O-18 vs. SP) of the main N2O emission phases to assess contribution of the involved microbial processes (bacterial nitrification, bacterial denitrification, nitrifier denitrification and fungal denitrification). According to the results of the main N2O emission phases, we found that bio-organic fertilizer and mix fertilizer treatments had significantly lower N2O emissions compared to urea treatment, with average N2O fluxes of 1477 +/- 204, 1243 +/- 187 and 1941 +/- 164 mu g m(-3) h(-1), respectively, but there were no significant effects on mineral N and cabbage yield. In addition, the urea treatment and the mixed fertilizer treatment had close and higher nitrogen use efficiency. Furthermore, the delta O-18 vs. SP plot was useful for providing insight into microbial processes, showing that fungal denitrification/bacterial nitrification was the dominant microbial pathway and bio-organic fertilizer and mix fertilizer treatments had higher denitrification and N2O reduction compared to urea treatment. Those findings demonstrated that the partial replacement of urea with bio-organic fertilizer was a better choice, by means of enhancing denitrification to reduce N2O emissions and also guaranteeing the nitrogen use efficiency and the cabbage yield.
入藏号: WOS:000564652400007
PubMed ID: 32599391
语言: English
文献类型: Article
作者关键词: Fungal denitrification; N2O reduction; N2O isotopocule Deltas; Bio-organic fertilizer; Urea
KeyWords Plus: NITROUS-OXIDE PRODUCTION; BIOORGANIC FERTILIZER; FUSARIUM-WILT; EMITTED N2O; DENITRIFICATION; EMISSION; NITRIFICATION; FRACTIONATION; BACTERIAL; AVAILABILITY
地址: [Lin, Wei] Chinese Acad Agr Sci, Inst Urban Agr, Chengdu 610213, Peoples R China.
[Ding, Junjun; Xu, Chunying; Zheng, Qian; Zhuang, Shan; Mao, Lili; Li, Qiaozhen; Liu, Xiaoying; Li, Yuzhong] Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Dryland Agr, Minist Agr & Rural Affairs Peoples Republ China, Beijing 100081, Peoples R China.
[Lin, Wei; Li, Yuzhong] Chinese Acad Agr Sci, Environm Stable Isotope Lab, Beijing 100081, Peoples R China.
通讯作者地址: Li, YZ (corresponding author),Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Dryland Agr, Minist Agr & Rural Affairs Peoples Republ China, Beijing 100081, Peoples R China.
电子邮件地址: linwei01@caas.cn; liyuzhong@caas.cn
出版商: ACADEMIC PRESS INC ELSEVIER SCIENCE
出版商地址: 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
Web of Science 类别: Environmental Sciences; Public, Environmental & Occupational Health
研究方向: Environmental Sciences & Ecology; Public, Environmental & Occupational Health
IDS 号: NH4OY
ISSN: 0013-9351
eISSN: 1096-0953
29 字符的来源出版物名称缩写: ENVIRON RES
ISO 来源出版物缩写: Environ. Res.
来源出版物页码计数: 9
基金资助致谢:
基金资助机构 授权号
National Natural Science and Technology Foundation of China 
41473004 
41701308 
National Key Research and Development Program of China 
2017YFD0201702 
Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences (ASTIP-CAAS)   
Local Financial of National Agricultural Science & Technology Center, Chengdu 
NASC2020AR09 

This work was supported by The National Natural Science and Technology Foundation of China (Nos. 41473004 and 41701308), The National Key Research and Development Program of China (2017YFD0201702), The Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences (ASTIP-CAAS), and Local Financial of National Agricultural Science & Technology Center, Chengdu (NASC2020AR09).

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