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  Coupled Impacts of Soil Acidification and Climate Change on Future Crop Suitability in Ethiopia

Jimma, T. B., Chemura, A., Spillane, C., Demissie, T., Abera, W., Ture, K., Terefe, T., Solomon, D., Gleixner, S. (2024): Coupled Impacts of Soil Acidification and Climate Change on Future Crop Suitability in Ethiopia. - Sustainability, 16, 4, 1468.
https://doi.org/10.3390/su16041468

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 Creators:
Jimma, Tamirat B.1, Author
Chemura, Abel2, Author              
Spillane, Charles1, Author
Demissie, Teferi1, Author
Abera, Wuletawu1, Author
Ture, Kassahun1, Author
Terefe, Tadesse1, Author
Solomon, Dawit1, Author
Gleixner, Stephanie2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, ou_persistent13              

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Free keywords: soil pH; agriculture; climate adaptation; soil quality; EcoCrop; sustainability
 Abstract: Agricultural sustainability faces challenges in the changing climate, particularly for rain-fed systems like those in Ethiopia. This study examines the combined impacts of climate change and soil acidity on future crop potential, focusing on Ethiopia as a case study. The EcoCrop crop suitability model was parameterized and run for four key food crops in Ethiopia (teff, maize, barley and common wheat), under current and mid-century climate conditions. To assess the impacts of soil acidification on crop suitability, a simulation study was conducted by lowering the soil pH values by 0.5, 1.0 and 1.5 and re-running the suitability model, comparing the changes in the area suitable for each crop. Our evaluation of the model, by comparing the modeled suitable areas with reference data, indicated that there was a good fit for all the four crops. Using default soil pH values, we project that there will be no significant changes in the suitability of maize, barley and wheat and an increase in the suitability of teff by the mid-century, as influenced by projected increases in rainfall in the country. Our results demonstrate a direct relationship between the lowering of soil pH and increasing losses in the area suitable for all crops, but especially for teff, barley and wheat. We conclude that soil acidification can have a strong impact on crop suitability in Ethiopia under climate change, and precautionary measures to avoid soil acidification should be a key element in the design of climate change adaptation strategies.

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Language(s): eng - English
 Dates: 2024-02-052024-02-092024-02-09
 Publication Status: Finally published
 Pages: 17
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.3390/su16041468
Organisational keyword: RD2 - Climate Resilience
PIKDOMAIN: RD2 - Climate Resilience
Working Group: Adaptation in Agricultural Systems
MDB-ID: No data to archive
Regional keyword: Africa
Model / method: Quantitative Methods
Research topic keyword: Land use
Research topic keyword: Climate impacts
Research topic keyword: Food & Agriculture
OATYPE: Gold Open Access
 Degree: -

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Title: Sustainability
Source Genre: Journal, SCI, p3, oa, in Scopus nur von 2009-2013
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Publ. Info: -
Pages: - Volume / Issue: 16 (4) Sequence Number: 1468 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/1507021
Publisher: MDPI