Mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestation

Land use changes are known to account for over 20% of human greenhouse gas emissions and tree cover losses can significantly influence land-climate dynamics. Land-climate feedbacks have been identified and evaluated for a long time. However, in addition to the direct effect of climate change on fore...

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Main Author: Antoine Leblois
Format: Article
Language:English
Published: IOP Publishing 2021-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/abdbf0
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author Antoine Leblois
author_facet Antoine Leblois
author_sort Antoine Leblois
collection DOAJ
description Land use changes are known to account for over 20% of human greenhouse gas emissions and tree cover losses can significantly influence land-climate dynamics. Land-climate feedbacks have been identified and evaluated for a long time. However, in addition to the direct effect of climate change on forest biomes, recent sparse evidence has shown that land use changes may increase as a result of weather shocks. In Western and Central Africa, agriculture is the main source of income and employment for rural populations. Economies rely on agricultural production, which is largely rainfed, and therefore dependent predominantly upon seasonal rainfall. In this article, I explore the impact of seasonal rainfall quality on deforestation, by combining high-resolution remotely-sensed annual tree cover loss, land cover, human activity and daily rainfall data. I show that in poor regions that are mainly reliant on rainfed agriculture, a bad rainy season leads to large deforestation shocks. These shocks notably depend on the proportion of agricultural land and on the remoteness of the areas in question, as remoteness determines the ability to import food and the existence of alternative income sources. In areas with significant forest cover, a short rainfall season leads to a 15% increase in deforestation. In unconnected areas with small proportions of crop area, the increase in deforestation reaches 20%. Findings suggest that a refined understanding of the land use changes caused by rainfall shocks might be used to improve the design and effectiveness of development, adaptation and conservation policies.
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spelling doaj.art-0bfabb8c5c904321820ce966c1396e2c2023-08-09T14:53:48ZengIOP PublishingEnvironmental Research Letters1748-93262021-01-0116505400310.1088/1748-9326/abdbf0Mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestationAntoine Leblois0https://orcid.org/0000-0003-0504-884XCEE-M, Univ Montpellier, CNRS, INRAE, Institut Agro , 2 place Viala, 34000 Montpellier, FranceLand use changes are known to account for over 20% of human greenhouse gas emissions and tree cover losses can significantly influence land-climate dynamics. Land-climate feedbacks have been identified and evaluated for a long time. However, in addition to the direct effect of climate change on forest biomes, recent sparse evidence has shown that land use changes may increase as a result of weather shocks. In Western and Central Africa, agriculture is the main source of income and employment for rural populations. Economies rely on agricultural production, which is largely rainfed, and therefore dependent predominantly upon seasonal rainfall. In this article, I explore the impact of seasonal rainfall quality on deforestation, by combining high-resolution remotely-sensed annual tree cover loss, land cover, human activity and daily rainfall data. I show that in poor regions that are mainly reliant on rainfed agriculture, a bad rainy season leads to large deforestation shocks. These shocks notably depend on the proportion of agricultural land and on the remoteness of the areas in question, as remoteness determines the ability to import food and the existence of alternative income sources. In areas with significant forest cover, a short rainfall season leads to a 15% increase in deforestation. In unconnected areas with small proportions of crop area, the increase in deforestation reaches 20%. Findings suggest that a refined understanding of the land use changes caused by rainfall shocks might be used to improve the design and effectiveness of development, adaptation and conservation policies.https://doi.org/10.1088/1748-9326/abdbf0deforestationrainfall shocksWest Africa
spellingShingle Antoine Leblois
Mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestation
Environmental Research Letters
deforestation
rainfall shocks
West Africa
title Mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestation
title_full Mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestation
title_fullStr Mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestation
title_full_unstemmed Mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestation
title_short Mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestation
title_sort mitigating the impact of bad rainy seasons in poor agricultural regions to tackle deforestation
topic deforestation
rainfall shocks
West Africa
url https://doi.org/10.1088/1748-9326/abdbf0
work_keys_str_mv AT antoineleblois mitigatingtheimpactofbadrainyseasonsinpooragriculturalregionstotackledeforestation