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Title: Stronger warming effects on microbial abundances in colder regions

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep18032· OSTI ID:1240142
 [1];  [2];  [2];  [2];  [3];  [3];  [2];  [2];  [2];  [4]
  1. Chinese Academy of Sciences, Xi'an (China); Univ. of Chinese Academy of Science, Beijing (China)
  2. Univ. of Oklahoma, Norman, OK (United States)
  3. Fudan Univ., Coastal Ecosystems Research Station of Yangtze River Estuary, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, The Institute of Biodiversity Science, Shanghai (China)
  4. Chinese Academy of Sciences, Xi'an (China); Xi'an Jiaotong Univ., Xi'an (China)

Soil microbes play critical roles in regulating terrestrial carbon (C) cycle and its feedback to climate change. However, it is still unclear how the soil microbial community and abundance respond to future climate change scenarios. In this meta-analysis, we synthesized the responses of microbial community and abundance to experimental warming from 64 published field studies. Our results showed that warming significantly increased soil microbial abundance by 7.6% on average. When grouped by vegetation or soil types, tundras and histosols had the strongest microbial responses to warming with increased microbial, fungal, and bacterial abundances by 15.0%, 9.5% and 37.0% in tundra, and 16.5%, 13.2% and 13.3% in histosols, respectively. We found significant negative relationships of the response ratios of microbial, fungal and bacterial abundances with the mean annual temperature, indicating that warming had stronger effects in colder than warmer regions. Moreover, the response ratios of microbial abundance to warming were positively correlated with those of soil respiration. Our results therefore indicate that the large quantities of C stored in colder regions are likely to be more vulnerable to climate warming than the soil C stored in other warmer regions.

Research Organization:
Univ. of Oklahoma, Norman, OK (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0008270
OSTI ID:
1240142
Journal Information:
Scientific Reports, Vol. 5; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 60 works
Citation information provided by
Web of Science

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Cited By (11)

Faster nitrogen cycling and more fungal and root biomass in cold ecosystems under experimental warming: a meta‐analysis journal September 2019
Divergent responses of ecosystem respiration components to livestock exclusion on the Qinghai Tibetan Plateau journal May 2018
Changes in soil organic carbon in croplands subjected to fertilizer management: a global meta-analysis journal June 2016
Contrasting responses after fires of the source components of soil respiration and ecosystem respiration journal May 2019
Differential responses of carbon-degrading enzyme activities to warming: Implications for soil respiration journal August 2018
Soil carbon loss with warming: New evidence from carbon‐degrading enzymes journal April 2020
A keystone microbial enzyme for nitrogen control of soil carbon storage journal August 2018
Uncovering the Uncultivated Majority in Antarctic Soils: Toward a Synergistic Approach journal February 2019
Effects of initial microbial biomass abundance on respiration during pine litter decomposition journal February 2020
The distribution and relative ecological roles of autotrophic and heterotrophic diazotrophs in the McMurdo Dry Valleys, Antarctica journal January 2020
Long-Term Warming Alters Carbohydrate Degradation Potential in Temperate Forest Soils journal September 2016