Arid
DOI10.1139/cjss-2018-0002
Responses and mechanisms of soil greenhouse gas fluxes to changes in precipitation intensity and duration: a meta-analysis for a global perspective
Yan, Guoyong1,2; Mu, Changcheng1; Xing, Yajuan2,3; Wang, Qinggui1,2
通讯作者Wang, Qinggui
来源期刊CANADIAN JOURNAL OF SOIL SCIENCE
ISSN0008-4271
EISSN1918-1841
出版年2018
卷号98期号:4页码:591-603
英文摘要

Although extensive manipulative experiments have been conducted to study the effects of altered precipitation intensity and duration on soil greenhouse gas (GHG; carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O)) fluxes, the general patterns of GHGs to altered precipitation have not been globally described across biomes. Thus, we performed a meta-analysis of 84 published studies to examine the general responses of CO2, CH4, and N2O fluxes to altered precipitation. Our results indicated that increased precipitation significantly increased N2O emissions (+154.0%) and CO2 fluxes (+112.2%) and significantly decreased CH4 uptake (-41.4%); decreased precipitation significantly decreased N2O emissions (-64.7%) and CO2 fluxes (-8.6%) and significantly increased CH4 uptake (+32.4%). Moreover, increased precipitation significantly increased litter biomass and microbial biomass and decreased root biomass and the root: shoot ratio. However, decreased precipitation significantly decreased litter biomass and root biomass and significantly increased root: shoot ratio. These results suggest that precipitation changes could alter the carbon distribution patterns in plants. In addition, the CO2, CH4, and N2O fluxes exhibited diverse responses to different ecosystems, durations of precipitation changes, and changes in precipitation intensity. These results demonstrate that there are many factors that regulate the responses of GHG to precipitation changes.


英文关键词soil greenhouse gas fluxes altered precipitation meta-analysis
类型Review
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000452428800001
WOS关键词MICROBIAL COMMUNITY COMPOSITION ; FINE-ROOT BIOMASS ; INCREASING PRECIPITATION ; TEMPERATE DESERT ; INNER-MONGOLIA ; CARBON ; RESPIRATION ; EMISSIONS ; DROUGHT ; CH4
WOS类目Soil Science
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/208290
作者单位1.Northeast Forestry Univ, Sch Forestry, Ctr Ecol Res, Harbin 150040, Heilongjiang, Peoples R China;
2.Heilongjiang Univ, Coll Agr Resource & Environm, 74 Xuefu Rd, Harbin 150080, Heilongjiang, Peoples R China;
3.Inst Forestry Sci Heilongjiang Prov, 134 Haping Rd, Harbin 150081, Heilongjiang, Peoples R China
推荐引用方式
GB/T 7714
Yan, Guoyong,Mu, Changcheng,Xing, Yajuan,et al. Responses and mechanisms of soil greenhouse gas fluxes to changes in precipitation intensity and duration: a meta-analysis for a global perspective[J],2018,98(4):591-603.
APA Yan, Guoyong,Mu, Changcheng,Xing, Yajuan,&Wang, Qinggui.(2018).Responses and mechanisms of soil greenhouse gas fluxes to changes in precipitation intensity and duration: a meta-analysis for a global perspective.CANADIAN JOURNAL OF SOIL SCIENCE,98(4),591-603.
MLA Yan, Guoyong,et al."Responses and mechanisms of soil greenhouse gas fluxes to changes in precipitation intensity and duration: a meta-analysis for a global perspective".CANADIAN JOURNAL OF SOIL SCIENCE 98.4(2018):591-603.
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