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DOI10.1111/ele.13480
Phosphorus alleviation of nitrogen-suppressed methane sink in global grasslands
Zhang, Lihua1,2,3,4; Yuan, Fenghui3,5; Bai, Junhong6; Duan, Hongtao7; Gu, Xueying4; Hou, Longyu4; Huang, Yao4; Yang, Mingan8; He, Jin-Sheng9; Zhang, Zhenhua9; Yu, Lijun10; Song, Changchun2; Lipson, David A.3; Zona, Donatella3; Oechel, Walter3; Janssens, Ivan A.11; Xu, Xiaofeng2,3
2020-02-25
发表期刊ECOLOGY LETTERS
ISSN1461-023X
EISSN1461-0248
出版年2020
卷号23期号:5页码:821-830
文章类型Article
语种英语
国家Peoples R China; USA; Belgium
英文摘要

Grassland ecosystems account for more than 10% of the global CH4 sink in soils. A 4-year field experiment found that addition of P alone did not affect CH4 uptake and experimental addition of N alone significantly suppressed CH4 uptake, whereas concurrent N and P additions suppressed CH4 uptake to a lesser degree. A meta-analysis including 382 data points in global grasslands corroborated these findings. Global extrapolation with an empirical modelling approach estimated that contemporary N addition suppresses CH4 sink in global grassland by 11.4% and concurrent N and P deposition alleviates this suppression to 5.8%. The P alleviation of N-suppressed CH4 sink is primarily attributed to substrate competition, defined as the competition between ammonium and CH4 for the methane mono-oxygenase enzyme. The N and P impacts on CH4 uptake indicate that projected increases in N and P depositions might substantially affect CH4 uptake and alter the global CH4 cycle.


英文关键词Grassland methane nitrogen phosphorus substrate competition theory
领域资源环境
收录类别SCI-E
WOS记录号WOS:000515513100001
WOS关键词INNER-MONGOLIA ; ATMOSPHERIC METHANE ; ECOSYSTEM RESPIRATION ; SEMIARID GRASSLAND ; N2O FLUXES ; CH4 UPTAKE ; DEPOSITION ; FERTILIZATION ; OXIDATION ; FOREST
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/279122
专题资源环境科学
作者单位1.Minzu Univ China, Coll Life & Environm Sci, Beijing 100081, Peoples R China;
2.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China;
3.San Diego State Univ, Biol Dept, San Diego, CA 92182 USA;
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China;
5.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China;
6.Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China;
7.Chinese Acad Sci, Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing 210008, Peoples R China;
8.San Diego State Univ, Div Epidemiol & Biostat, San Diego, CA 92182 USA;
9.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China;
10.Chinese Acad Sci, Inst Atmospher Phys, LAPC, Beijing 100029, Peoples R China;
11.Univ Antwerp, Dept Biol, Antwerp, Belgium
推荐引用方式
GB/T 7714
Zhang, Lihua,Yuan, Fenghui,Bai, Junhong,et al. Phosphorus alleviation of nitrogen-suppressed methane sink in global grasslands[J]. ECOLOGY LETTERS,2020,23(5):821-830.
APA Zhang, Lihua.,Yuan, Fenghui.,Bai, Junhong.,Duan, Hongtao.,Gu, Xueying.,...&Xu, Xiaofeng.(2020).Phosphorus alleviation of nitrogen-suppressed methane sink in global grasslands.ECOLOGY LETTERS,23(5),821-830.
MLA Zhang, Lihua,et al."Phosphorus alleviation of nitrogen-suppressed methane sink in global grasslands".ECOLOGY LETTERS 23.5(2020):821-830.
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