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Reduction of microbial diversity in grassland soil is driven by long-term climate warming

Journal Article · · Nature Microbiology
 [1];  [2];  [3];  [2];  [4];  [2];  [5];  [3];  [6];  [7];  [8];  [2];  [2];  [2];  [2];  [2];  [2];  [2];  [9];  [2] more »;  [2];  [3];  [10];  [11] « less
  1. Peking Univ., Beijing (China); Univ. of Oklahoma, Norman, OK (United States)
  2. Univ. of Oklahoma, Norman, OK (United States)
  3. Tsinghua Univ., Beijing (China)
  4. Univ. of Oklahoma, Norman, OK (United States); Central South University (China)
  5. Univ. of Oklahoma, Norman, OK (United States); Univ. of California, Berkeley, CA (United States)
  6. Univ. of Oklahoma, Norman, OK (United States); Hunan Academy of Agricultural Sciences (China)
  7. Univ. of Oklahoma, Norman, OK (United States); Hunan Agricultural University (China)
  8. Univ. of Oklahoma, Norman, OK (United States); China University of Geosciences (Wuhan) (CUG), (China)
  9. Central South University (China)
  10. Michigan State Univ., East Lansing, MI (United States)
  11. Univ. of Oklahoma, Norman, OK (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Anthropogenic climate change threatens ecosystem functioning. Soil biodiversity is essential for maintaining the health of terrestrial systems, but how climate change affects the richness and abundance of soil microbial communities remains unresolved. Here, we examined the effects of warming, altered precipitation and annual biomass removal on grassland soil bacterial, fungal and protistan communities over 7 years to determine how these representative climate changes impact microbial biodiversity and ecosystem functioning. We show that experimental warming and the concomitant reductions in soil moisture play a predominant role in shaping microbial biodiversity by decreasing the richness of bacteria (9.6%), fungi (14.5%) and protists (7.5%). Our results also show positive associations between microbial biodiversity and ecosystem functional processes, such as gross primary productivity and microbial biomass. We conclude that the detrimental effects of biodiversity loss might be more severe in a warmer world.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); China Postdoctoral Science Foundation
Grant/Contract Number:
AC02-05CH11231; SC0004601; SC0010715
OSTI ID:
1961820
Journal Information:
Nature Microbiology, Journal Name: Nature Microbiology Journal Issue: 7 Vol. 7; ISSN 2058-5276
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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