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The Sahel region is confronted with a severe problem of land degradation, which is jeopardizing livelihoods and stymieing efforts to eradicate food insecurity. The Great Green Wall programme is a colossal initiative designed to improve communities’ resilience and restore degraded ecosystems by planting locally suitable native trees and grasses. We evaluated the economic costs and benefits of land restoration under this programme. The results show that the average annual costs of land degradation due to land use and land cover changes in the entire Sahel region during 2001–2018 period were equal to 3 billion USD. Every USD invested into land restoration is found to yield from 1.7 USD to 2.9 USD. About 10 years are needed for all land restoration activities to reach positive benefit-cost ratios from the social perspective. The amount of investments needed for land restoration across the Sahel is estimated to be between 18–70 bln USD.
Keywords
land degradation, restoration, ecosystem services, total economic value framework, CO2 sequestration
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- SupplementaryMaterials17032021.docx
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This preprint is under consideration at a Nature Portfolio Journal. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Nature journals have partnered with Research Square to offer In Review, a journal-integrated preprint deposition service.
Article
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 22 Mar, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The Sahel region is confronted with a severe problem of land degradation, which is jeopardizing livelihoods and stymieing efforts to eradicate food insecurity. The Great Green Wall programme is a colossal initiative designed to improve communities’ resilience and restore degraded ecosystems by planting locally suitable native trees and grasses. We evaluated the economic costs and benefits of land restoration under this programme. The results show that the average annual costs of land degradation due to land use and land cover changes in the entire Sahel region during 2001–2018 period were equal to 3 billion USD. Every USD invested into land restoration is found to yield from 1.7 USD to 2.9 USD. About 10 years are needed for all land restoration activities to reach positive benefit-cost ratios from the social perspective. The amount of investments needed for land restoration across the Sahel is estimated to be between 18–70 bln USD.
Figure 1
Figure 2
Figure 3
There is NO Competing Interest.
This is a list of supplementary files associated with this preprint. Click to download.
- SupplementaryMaterials17032021.docx
Submitted manuscript files
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