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Soil microbial respiration rate and temperature sensitivity along a north-south forest transect in eastern China: Patterns and influencing factors

文献类型：期刊论文

作者Gao, Yang1; Wang, Qing1,2; He, Nianpeng1; Yu, Guirui1; Wen, Xuefa1; Wang, Rongfu2; Koerner, Sally E.3; Yu, Qiang4,5,6
刊名JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
出版日期2016-02-01
卷号121期号:2页码:399-410
ISSN号2169-8953
关键词Latitude Soil Organic Matter Decomposition Temperature Sensitivity Carbon Quality-temperature Hypothesis
DOI10.1002/2015JG003217
英文摘要Soil organic matter is one of the most important carbon (C) pools in terrestrial ecosystems, and future warming from climate change will likely alter soil C storage via temperature effects on microbial respiration. In this study, we collected forest soils from eight locations along a 3700km north-south transect in eastern China (NSTEC). For 8weeks these soils were incubated under a periodically changing temperature range of 6-30 degrees C while frequently measuring soil microbial respiration rate (Rs; each sample about every 20min). This experimental design allowed us to investigate Rs and the temperature sensitivity of Rs (Q(10)) along the NSTEC. Both Rs at 20 degrees C (R-20) and Q(10) significantly increased (logarithmically) with increasing latitude along the NSTEC suggesting that the sensitivity of soil microbial respiration to changing temperatures is higher in forest soils from locations with lower temperature. Our findings from an incubation experiment provide support for the hypothesis that temperature sensitivity of soil microbial respiration increases with biochemical recalcitrance (C quality-temperature hypothesis) across forest soils on a large spatial scale. Furthermore, microbial properties primarily controlled the observed patterns of R-20, whereas both substrate and microbial properties collectively controlled the observed patterns of Q(10). These findings advance our understanding of the driving factors (microbial versus substrate properties) of R-20 and Q(10) as well as the general relationships between temperature sensitivity of soil microbial respiration and environmental factors.
WOS研究方向Environmental Sciences & Ecology ; Geology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000373197300010
源URL[http://210.72.129.5/handle/321005/122567]  
专题中国科学院沈阳应用生态研究所
通讯作者He, Nianpeng; Yu, Qiang
作者单位1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
2.Anhui Agr Univ, Hefei, Peoples R China
3.Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA
4.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China
5.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA
6.Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA
推荐引用方式
GB/T 7714		 Gao, Yang,Wang, Qing,He, Nianpeng,et al. Soil microbial respiration rate and temperature sensitivity along a north-south forest transect in eastern China: Patterns and influencing factors[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2016,121(2):399-410.
APA Gao, Yang.,Wang, Qing.,He, Nianpeng.,Yu, Guirui.,Wen, Xuefa.,...&Yu, Qiang.(2016).Soil microbial respiration rate and temperature sensitivity along a north-south forest transect in eastern China: Patterns and influencing factors.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,121(2),399-410.
MLA Gao, Yang,et al."Soil microbial respiration rate and temperature sensitivity along a north-south forest transect in eastern China: Patterns and influencing factors".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 121.2(2016):399-410.

入库方式： OAI收割

来源：沈阳应用生态研究所

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