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  African rainforest moisture contribution to continental agricultural water consumption

Nyasulu, M. K., Fetzer, I., Wang-Erlandsson, L., Stenzel, F., Gerten, D., Rockström, J., Falkenmark, M. (2024): African rainforest moisture contribution to continental agricultural water consumption. - Agricultural and Forest Meteorology, 346, 109867.
https://doi.org/10.1016/j.agrformet.2023.109867

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 Creators:
Nyasulu, Maganizo Kruger1, Author              
Fetzer, Ingo2, Author
Wang-Erlandsson, Lan1, Author              
Stenzel, Fabian1, Author              
Gerten, Dieter1, Author              
Rockström, Johan1, Author              
Falkenmark, Malin2, Author
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1Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              
2External Organizations, ou_persistent22              

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 Abstract: Precipitation is essential for food production in Sub-Saharan Africa, where more than 80 % of agriculture is rainfed. Although ∼40 % of precipitation in certain regions is recycled moisture from Africa's tropical rainforest, there needs to be more knowledge about how this moisture supports the continent's agriculture. In this study, we quantify all moisture sources for agrarian precipitation (African agricultural precipitationshed), the estimates of African rainforest's moisture contribution to agricultural precipitation, and the evaporation from agricultural land across the continent. Applying a moisture tracking model (UTRACK) and a dynamic global vegetation model (LPJmL), we find that the Congo rainforest (>60 % tree cover) is a crucial moisture source for many agricultural regions. Although most of the rainforest acreage is in the DRC, many neighboring nations rely significantly on rainforest moisture for their rainfed agriculture, and even in remote places, rainforest moisture accounts for ∼10–20 % of agricultural water use. Given continuous deforestation and climate change, which impact rainforest areas and resilience, more robust governance for conserving the Congo rainforest is necessary to ensure future food production across multiple Sub-Saharan African countries.

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Language(s): eng - English
 Dates: 2023-12-182024-01-052024-03-01
 Publication Status: Finally published
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: PIKDOMAIN: RD1 - Earth System Analysis
Organisational keyword: RD1 - Earth System Analysis
Organisational keyword: Director Rockström
PIKDOMAIN: Director / Executive Staff / Science & Society
Working Group: Terrestrial Safe Operating Space
Regional keyword: Africa
Model / method: LPJmL
Research topic keyword: Freshwater
Research topic keyword: Food & Agriculture
Research topic keyword: Forest
MDB-ID: pending
OATYPE: Hybrid Open Access
DOI: 10.1016/j.agrformet.2023.109867
 Degree: -

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Title: Agricultural and Forest Meteorology
Source Genre: Journal, SCI, Scopus, p3
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Pages: - Volume / Issue: 346 Sequence Number: 109867 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/journals15
Publisher: Elsevier