Agrohydrological analysis of groundwater recharge and land use changes in the Pampas of Argentina

Joop Kroes, Jos van Dam, Iwan Supit, Diego de Abelleyra, Santiago Verón, Allard de Wit, Hendrik Boogaard, Marcos Angelini, Francisco Damiano, Piet Groenendijk, Jan Wesseling and Ab Veldhuizen

Agricultural Water Management, 2019, vol. 213, issue C, 843-857

Abstract: This paper studies the changes of groundwater, climate and land use in the Pampas of Argentina. These changes offer opportunities and threats. Lowering groundwater without irrigation causes drought and successive crop and yield damage. Rising groundwater may alleviate drought as capillary rise supports root water uptake and crop growth, thus narrowing the difference between potential and actual yields. However, rising groundwater may also limit soil water storage, cause flooding in metropolitan areas and have a negative impact on crop yields. Changing land use from continuous soy bean into crop rotations or natural vegetation may decrease groundwater recharge and thus decrease groundwater levels. In case of crop rotation however, leaching of nutrients like nitrate may increase.

Keywords: Groundwater recharge; Capillary rise; Land use; Soybean; Pampas; Argentina; SWAP; WOFOST (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:213:y:2019:i:c:p:843-857

DOI: 10.1016/j.agwat.2018.12.008

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