Soil microbial respiration rate and temperature sensitivity along a north-south forest transect in eastern China: Patterns and influencing factors
Wang, Q; He, NP; Yu, GR; Gao, Y; Wen, XF; Wang, RF; Koerner, SE; Yu, Q
2016
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
ISSN2169-8953
Volume121Issue:2Pages:399-410
AbstractSoil 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.
SubtypeJournal
Keywordlatitude soil organic matter decomposition temperature sensitivity carbon quality-temperature hypothesis
Subject AreaEnvironmental Sciences & Ecology ; Geology
WOS Subject ExtendedEnvironmental Sciences ; Geosciences, Multidisciplinary
WOS KeywordORGANIC-MATTER DECOMPOSITION ; CARBON DECOMPOSITION ; SUBSTRATE AVAILABILITY ; BACTERIAL COMMUNITIES ; THERMAL-ACCLIMATION ; CHANGBAI MOUNTAIN ; GLOBAL-SCALE ; QUALITY ; DEPENDENCE ; MOISTURE
Indexed BySCI
Language英语
WOS IDWOS:000373197300010
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44279
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Wang, Q,He, NP,Yu, GR,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 Wang, Q.,He, NP.,Yu, GR.,Gao, Y.,Wen, XF.,...&Yu, Q.(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 Wang, Q,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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Q]'s Articles
[He, NP]'s Articles
[Yu, GR]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Q]'s Articles
[He, NP]'s Articles
[Yu, GR]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Q]'s Articles
[He, NP]'s Articles
[Yu, GR]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.