Nature-based solutions in the savanna belt of Africa: Insights from a systematic review

Nature-based Solutions (NbS) are powerful tools whereby, using nature as the template, societal challenges can be addressed, while simultaneously achieving co-benefits for the environment. NbS have been successfully demonstrated in different ecosystems around the globe, but for savanna ecosystems -...

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Main Authors: Daniel O. Olago, Timothy A. Downing, Yvonne Githiora, Christian Borgemeister, Juliet Kamau, Gerda Kuiper, N'golo A. Koné, Christine Omuombo
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Nature-Based Solutions
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Online Access:http://www.sciencedirect.com/science/article/pii/S2772411524000454
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author Daniel O. Olago
Timothy A. Downing
Yvonne Githiora
Christian Borgemeister
Juliet Kamau
Gerda Kuiper
N'golo A. Koné
Christine Omuombo
author_facet Daniel O. Olago
Timothy A. Downing
Yvonne Githiora
Christian Borgemeister
Juliet Kamau
Gerda Kuiper
N'golo A. Koné
Christine Omuombo
author_sort Daniel O. Olago
collection DOAJ
description Nature-based Solutions (NbS) are powerful tools whereby, using nature as the template, societal challenges can be addressed, while simultaneously achieving co-benefits for the environment. NbS have been successfully demonstrated in different ecosystems around the globe, but for savanna ecosystems - the planet's largest terrestrial biome - there is a lingering lack of clarity of what constitutes an NbS. We undertook a systematic review of literature in the savanna belt of Africa - stretching from Senegal to Tanzania. This review examined 3,714 journal articles from 2018 to 2022, out of which 271 papers met the inclusion criteria. Results show that there are a wide variety of nature-based techniques and strategies being used in the savanna-belt. Yet upon greater scrutiny, few qualified as NbS according to the IUCN criteria. Less than 2 % of papers met all the criteria, falling short in the areas of biodiversity gains, economic viability, governance processes, trade-offs, and adaptive management. The geographical and sectoral scopes of these solutions were also limited: 72 % of papers were from just 5 countries, and 80 % were from the agriculture/livestock sectors. Notably, 5 % involved creation of new ecosystems. Author collaborations between countries of the global south with savanna ecosystems were few. Our findings suggest research silos in NbS discourses: the peer-reviewed literature revolves around smallholder farming in just a few countries, where the research is generally driven by the global north. These factors prevent NbS from becoming truly transformational in addressing societal challenges in the savanna belt of Africa.
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spelling doaj-art-ae5c41d9f0b64802b328335ce49519ae2025-08-20T02:49:35ZengElsevierNature-Based Solutions2772-41152024-12-01610015410.1016/j.nbsj.2024.100154Nature-based solutions in the savanna belt of Africa: Insights from a systematic reviewDaniel O. Olago0Timothy A. Downing1Yvonne Githiora2Christian Borgemeister3Juliet Kamau4Gerda Kuiper5N'golo A. Koné6Christine Omuombo7Department of Earth and Climate Sciences, University of Nairobi, P.O. Box 30197, Nairobi 00100, KenyaDepartment of Earth and Climate Sciences, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya; Corresponding author.Department of Earth and Climate Sciences, University of Nairobi, P.O. Box 30197, Nairobi 00100, KenyaCentre for Development Research, University of Bonn, Bonn, GermanyCentre for Development Research, University of Bonn, Bonn, GermanyGlobal South Studies Centre, University of Cologne, Cologne, GermanyAfrican Center of Excellence on Climate Change, Biodiversity and Sustainable Agriculture CEA-CCBAD, Université Félix Houphouet Boigny, Abidjan, Côte d'Ivoire; Department of Natural Sciences (UFR-SN), Université Nangui Abrogoua, Abidjan, Côte d'IvoireDepartment of Earth and Climate Sciences, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya; Department of Geosciences and the Environment, Technical University of Kenya, Nairobi, KenyaNature-based Solutions (NbS) are powerful tools whereby, using nature as the template, societal challenges can be addressed, while simultaneously achieving co-benefits for the environment. NbS have been successfully demonstrated in different ecosystems around the globe, but for savanna ecosystems - the planet's largest terrestrial biome - there is a lingering lack of clarity of what constitutes an NbS. We undertook a systematic review of literature in the savanna belt of Africa - stretching from Senegal to Tanzania. This review examined 3,714 journal articles from 2018 to 2022, out of which 271 papers met the inclusion criteria. Results show that there are a wide variety of nature-based techniques and strategies being used in the savanna-belt. Yet upon greater scrutiny, few qualified as NbS according to the IUCN criteria. Less than 2 % of papers met all the criteria, falling short in the areas of biodiversity gains, economic viability, governance processes, trade-offs, and adaptive management. The geographical and sectoral scopes of these solutions were also limited: 72 % of papers were from just 5 countries, and 80 % were from the agriculture/livestock sectors. Notably, 5 % involved creation of new ecosystems. Author collaborations between countries of the global south with savanna ecosystems were few. Our findings suggest research silos in NbS discourses: the peer-reviewed literature revolves around smallholder farming in just a few countries, where the research is generally driven by the global north. These factors prevent NbS from becoming truly transformational in addressing societal challenges in the savanna belt of Africa.http://www.sciencedirect.com/science/article/pii/S2772411524000454Savanna restorationClimate change adaptationNature-based solutionsEcosystem-based adaptation
spellingShingle Daniel O. Olago
Timothy A. Downing
Yvonne Githiora
Christian Borgemeister
Juliet Kamau
Gerda Kuiper
N'golo A. Koné
Christine Omuombo
Nature-based solutions in the savanna belt of Africa: Insights from a systematic review
Nature-Based Solutions
Savanna restoration
Climate change adaptation
Nature-based solutions
Ecosystem-based adaptation
title Nature-based solutions in the savanna belt of Africa: Insights from a systematic review
title_full Nature-based solutions in the savanna belt of Africa: Insights from a systematic review
title_fullStr Nature-based solutions in the savanna belt of Africa: Insights from a systematic review
title_full_unstemmed Nature-based solutions in the savanna belt of Africa: Insights from a systematic review
title_short Nature-based solutions in the savanna belt of Africa: Insights from a systematic review
title_sort nature based solutions in the savanna belt of africa insights from a systematic review
topic Savanna restoration
Climate change adaptation
Nature-based solutions
Ecosystem-based adaptation
url http://www.sciencedirect.com/science/article/pii/S2772411524000454
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