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Variations in the diversity of soil microbial community and structure under various categories of degradation wetland in Sanjiang Plain, northeastern China
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  • Yining Wu,
  • Nan Xu,
  • He Wang,
  • Jinbo Li,
  • Haixiu Zhong,
  • Cheng Zong
Yining Wu
Heilongjiang Academy of Sciences Institute of Natural Resources and Ecology
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Nan Xu
Haerbin University
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He Wang
Northeast Forestry University
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Jinbo Li
Heilongjiang Academy of Sciences Institute of Natural Resources and Ecology
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Haixiu Zhong
Heilongjiang Academy of Sciences Institute of Natural Resources and Ecology
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Cheng Zong
Northeast Forestry University
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Abstract

Sanjiang Plain is the largest area of freshwater wetland in China. Due to agricultural development, a large volume of groundwater in this area has been extracted over the last few decades, resulting in wetland degradation. In order to provide information for the development and protection of wetland ecosystem, investigations examining processes of wetland degradation are important. The aim of this work is to assess the impacts of wetland degradation on the communities of soil microbial community under four different types of degradation wetland including swamp meadow (SW), meadow wetland (MW), paddy farmland (PF), and cropland (CL) in Sanjiang Plain. Using both 16S and ITS rRNA gene amplicon sequencing to evaluate the fungal and bacterial diversity and composition. The dominant fungal phyla and bacterial were Ascomycota and Proteobacteria in this study, respectively. In addition, wetland degradation remarkably augmented the partial affluence of Chloroflexi and Gemmatimonadetes, but the partial affluence of Proteobacteria and Verrucomicrobia significantly diminished. Bacterial Shannon index of SW was lower than those in other sites. While, fungal diversity had no significant differences under different types of degradation wetland. Along with the wetland degradation, such differential reactions of the dominant phyla microbial and diversity were notably coordinated with TP, TK, AK, and SOM, which were the most essential criteria influencing the soil microbial communities. Generally, these outcomes suggested that wetland degradation could result in variations in soil microbial community composition structure. These changes could be used as an early warning signal for the degradation wetland in Sanjiang Plain.

Peer review status:Published

22 Sep 2020Submitted to Land Degradation & Development
22 Sep 2020Submission Checks Completed
22 Sep 2020Assigned to Editor
24 Sep 2020Reviewer(s) Assigned
05 Oct 2020Review(s) Completed, Editorial Evaluation Pending
25 Oct 2020Editorial Decision: Revise Major
22 Nov 20201st Revision Received
24 Nov 2020Submission Checks Completed
24 Nov 2020Assigned to Editor
28 Nov 2020Review(s) Completed, Editorial Evaluation Pending
05 Dec 2020Editorial Decision: Revise Minor
10 Dec 20202nd Revision Received
10 Dec 2020Submission Checks Completed
10 Dec 2020Assigned to Editor
16 Dec 2020Review(s) Completed, Editorial Evaluation Pending
19 Dec 2020Editorial Decision: Accept
28 Dec 2020Published in Land Degradation & Development. 10.1002/ldr.3872