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Soil respiration under climate warming: differential response of heterotrophic and autotrophic respiration

文献类型：期刊论文

作者Wang, Xin1; Liu, Lingli; Piao, Shilong2; Janssens, Ivan A.; Tang, Jianwu4; Liu, Weixing; Chi, Yonggang; Wang, Jing1; Xu, Shan1
刊名GLOBAL CHANGE BIOLOGY
出版日期2014
卷号20期号:10页码:3229-3237
关键词acclimation apparent Q10 ecosystem warming forest grassland mediterranean meta-analysis soil moisture tundra warming duration
ISSN号1354-1013
DOI10.1111/gcb.12620
文献子类Article
英文摘要Despite decades of research, how climate warming alters the global flux of soil respiration is still poorly characterized. Here, we use meta-analysis to synthesize 202 soil respiration datasets from 50 ecosystem warming experiments across multiple terrestrial ecosystems. We found that, on average, warming by 2 degrees C increased soil respiration by 12% during the early warming years, but warming-induced drought partially offset this effect. More significantly, the two components of soil respiration, heterotrophic respiration and autotrophic respiration showed distinct responses. The warming effect on autotrophic respiration was not statistically detectable during the early warming years, but nonetheless decreased with treatment duration. In contrast, warming by 2 degrees C increased heterotrophic respiration by an average of 21%, and this stimulation remained stable over the warming duration. This result challenged the assumption that microbial activity would acclimate to the rising temperature. Together, our findings demonstrate that distinguishing heterotrophic respiration and autotrophic respiration would allow us better understand and predict the long-term response of soil respiration to warming. The dependence of soil respiration on soil moisture condition also underscores the importance of incorporating warming-induced soil hydrological changes when modeling soil respiration under climate change.
学科主题Biodiversity Conservation ; Ecology ; Environmental Sciences
出版地HOBOKEN
电子版国际标准刊号1365-2486
WOS关键词ECOSYSTEM CARBON FLUXES ; CO2 EFFLUX ; TEMPERATURE SENSITIVITY ; MICROBIAL RESPIRATION ; THERMAL ADAPTATION ; ELEVATED CO2 ; FOREST ; CYCLE ; COMPONENTS ; WATER
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000342168500019
出版者WILEY
资助机构Chinese National Key Development Program for Basic Research [2013CB956304, 2014CB954003] ; National Natural Science Foundation of China [13263A1001] ; National 1000 Young Talents Program
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/27172]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing 100871, Peoples R China
4.Janssens, Ivan A.] Univ Antwerp, Dept Biol, Res Grp Plant & Vegetat Ecol, B-2610 Antwerp, Belgium
5.Marine Biol Lab, Ecosyst Ctr, Woods Hole, MA 02543 USA
推荐引用方式
GB/T 7714		 Wang, Xin,Liu, Lingli,Piao, Shilong,et al. Soil respiration under climate warming: differential response of heterotrophic and autotrophic respiration[J]. GLOBAL CHANGE BIOLOGY,2014,20(10):3229-3237.
APA Wang, Xin.,Liu, Lingli.,Piao, Shilong.,Janssens, Ivan A..,Tang, Jianwu.,...&Xu, Shan.(2014).Soil respiration under climate warming: differential response of heterotrophic and autotrophic respiration.GLOBAL CHANGE BIOLOGY,20(10),3229-3237.
MLA Wang, Xin,et al."Soil respiration under climate warming: differential response of heterotrophic and autotrophic respiration".GLOBAL CHANGE BIOLOGY 20.10(2014):3229-3237.

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来源：植物研究所

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