Grain legumes and dryland cereals contribute to carbon sequestration in the drylands of Africa and South Asia

dc.creatorShem Kuyah
dc.creatorMuoni, T.
dc.creatorBayala, J.
dc.creatorChopin, P.
dc.creatorDahlin, S.
dc.creatorHughes, K.
dc.creatorJonsson, M.
dc.creatorShalander Kumar
dc.creatorGudeta Weldesemayat Sileshi
dc.creatorDimobe, K.
dc.creatorÖborn, I.
dc.date2023-06-22T20:00:12Z
dc.date2023-06-22T20:00:12Z
dc.date2023
dc.date.accessioned2023-07-17T20:10:36Z
dc.date.available2023-07-17T20:10:36Z
dc.identifierhttps://hdl.handle.net/10883/22610
dc.identifier10.1016/j.agee.2023.108583
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7514353
dc.descriptionGrain legumes and drylands cereals including chickpea (Cicer arietinum), common bean (Phaseolus vulgaris), cowpea (Vigna unguiculata), groundnut (Arachis hypogaea), lentil (Lens culinaris), pigeon pea (Cajanus cajan), soybean (Glycine max), finger millet (Eleusine coracana), pearl millet (Pennisetum glaucum) and sorghum (Sorghum bicolor) are the leading sources of food grain in drylands of Africa and South Asia. These crops can help smallholder agriculture to become more resilient, productive, and profitable, but their quantitative impact on carbon sequestration is unknown. The aim of this review study was to quantify their contribution to carbon sequestration across the drylands of Africa and South Asia based on 437 publications with 1319 observations in studies conducted across 32 countries. Cropping systems with grain legumes showed the greatest increase in soil organic carbon (SOC) concentrations, while cereals (and pigeon pea) gave the largest amount of aboveground carbon stock (>2 Mg C ha−1). Estimated carbon stock in post-harvest residues of these crops was 1.51 ± 0.05 Mg C ha−1 in Africa and 2.29 ± 0.10 Mg C ha−1 in South Asia. These crops produced more aboveground carbon, and significantly increased SOC, when grown as intercrops. Soils with low initial SOC (<1%) and high clay content (>32%) showed the greatest potential for carbon sequestration when cropped with grain legumes and dryland cereals. This study is the first of its kind to provide evidence that grain legumes and drylands cereals improve carbon sequestration across Africa and South Asia.
dc.languageEnglish
dc.publisherElsevier
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source355
dc.source0167-8809
dc.sourceAgriculture, Ecosystems and Environment
dc.source108583
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectAboveground Carbon
dc.subjectAERIAL PARTS
dc.subjectCROP ROTATION
dc.subjectINTERCROPPING
dc.subjectSOIL ORGANIC CARBON
dc.subjectSUSTAINABLE INTENSIFICATION
dc.subjectInstitutional
dc.titleGrain legumes and dryland cereals contribute to carbon sequestration in the drylands of Africa and South Asia
dc.typeArticle
dc.typePublished Version
dc.coverageAfrica
dc.coverageSouth Asia
dc.coverageAmsterdam (Netherlands)


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