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Responses of carbon sequestration services to multiple soil and water conservation projects in Yanhe Basin, Loess Plateau
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  • Jianxiang Zhang,
  • Yafeng Wang,
  • Jian Sun,
  • Junhe Chen,
  • Jingtian Zhang,
  • Dong Wang,
  • Huangyu Huo,
  • Eryuan Liang
Jianxiang Zhang
Institute of Tibetan Plateau Research Chinese Academy of Sciences

Corresponding Author:[email protected]

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Yafeng Wang
Institute of Tibetan Plateau Research Chinese Academy of Sciences
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Jian Sun
Institute of Tibetan Plateau Research Chinese Academy of Sciences
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Junhe Chen
Institute of Tibetan Plateau Research Chinese Academy of Sciences
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Jingtian Zhang
Institute of Tibetan Plateau Research Chinese Academy of Sciences
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Dong Wang
Longdong University
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Huangyu Huo
Institute of Tibetan Plateau Research Chinese Academy of Sciences
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Eryuan Liang
Institute of Tibetan Plateau Research Chinese Academy of Sciences
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Abstract

Ecosystem carbon sequestration services (CSSs) are the most important ecosystem services (ESs) to mitigate global warming. Multiple soil and water conservation projects (SWCPs) have been implemented to restore disturbed ecosystems on the Loess Plateau, China. However, responses of CSSs to SWCPs are unclear due to trade-offs between CSSs and other ESs. Here, we quantified key ESs (i.e. carbon sequestration, water yield, soil conservation and crop production) and the spatio-temporal trade-off relationships by using RS/GIS techniques and ecosystem modeling in the Yanhe Basin, Loess Plateau, during 1990-2020. Additionally, the structural equation model (SEM) was used to estimate the direct and indirect inflences of multiple SWCPs including check dams, terraces and Grain for Green (GFG) on CSSs. Results show that CSSs has improved to 457 t/ha in 2020, which was twice compared to 1990. Here in, 57% of CSSs changes were explained by ESs and SWCPs. That is, water yield (-77%), soil conservation (76%), crop production (22%), GFG (80%), check dams (16%), and terraces (-72%), respectively. In order to balance trade-offs among ESs, GFG project with a focus on vegetation protection need to be prioritised, followed by check dams, and non-agricultural terraces such as [reverse-slope level terrace](http://search.ebscohost.com/login.aspx?direct=true&profile=ehost&scope=site&authtype=crawler&jrnl=10019332&asa=Y&AN=63484555&h=G6mLycMgNlOVPgRoCYkOUk10bJVLBylqio15fIxfweqCrJzP5PEtwMoYDxnyvIpHMRMXk%2BO8V2wSOuIGuR9DpA%3D%3D&crl=c)s and fish-scale pits. Our results provide a mechanistic understanding of how interacting processes of human activities at small catchments scales to influence carbon sequestration, and promote sustainable utlization of ESs in hill and gully regions of the Loess Plateau.
03 May 2022Submitted to Land Degradation & Development
08 May 2022Submission Checks Completed
08 May 2022Assigned to Editor
18 May 2022Reviewer(s) Assigned
04 Jul 2022Review(s) Completed, Editorial Evaluation Pending
06 Sep 20221st Revision Received
09 Sep 2022Submission Checks Completed
09 Sep 2022Assigned to Editor
17 Oct 2022Review(s) Completed, Editorial Evaluation Pending
17 Oct 2022Editorial Decision: Revise Minor
02 Nov 20222nd Revision Received
11 Nov 2022Assigned to Editor
11 Nov 2022Submission Checks Completed
11 Nov 2022Review(s) Completed, Editorial Evaluation Pending
14 Nov 2022Reviewer(s) Assigned
27 Nov 2022Editorial Decision: Revise Minor
12 Dec 20223rd Revision Received
13 Dec 2022Submission Checks Completed
13 Dec 2022Assigned to Editor
13 Dec 2022Review(s) Completed, Editorial Evaluation Pending
18 Dec 2022Editorial Decision: Revise Minor
29 Dec 20224th Revision Received
29 Dec 2022Submission Checks Completed
29 Dec 2022Assigned to Editor
29 Dec 2022Review(s) Completed, Editorial Evaluation Pending
08 Jan 2023Editorial Decision: Accept