Climate change and wheat production in Argentina

Magrin, Graciela O.; Travasso, Maria; Rodríguez, Gabriel; Solman, Silvina Alicia; Núñez, Mario N.

doi:10.1504/ijgw.2009.027090

Cited by 29 publications

(31 citation statements)

References 20 publications

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“…Crop simulation models indicate that after filtering technology‐induced trends, greater water availability for crops in the Pampa region during 1970–2000 (as compared with 1930–1960) led to yield increments in soybean (38%), maize (18%), wheat (13%), and sunflower (12%), as well as in the productivity of temperate grasses (7%) especially in the southern and western zones . However, in the case of wheat, model simulations also indicate that the gains due to precipitation changes were reduced in response to higher minimum temperatures . In addition, the more humid climate, together with a number of other factors such as new production technologies and genotypes, the enhanced global food demand, and the increase in grains price, allowed the expansion of agriculture toward the western zones and the inclusion of new lands for agriculture …”

Section: Impactsmentioning

confidence: 99%

“…39,40 However, in the case of wheat, model simulations also indicate that the gains due to precipitation changes were reduced in response to higher minimum temperatures. 41 In addition, the more humid climate, together with a number of other factors such as new production technologies and genotypes, the enhanced global food demand, and the increase in grains price, allowed the expansion of agriculture toward the western zones and the inclusion of new lands for agriculture. 42 Although observed climate change has favored the yields of the main crops, the increased frequency of extreme weather events constitutes a growing risk.…”

Section: Agriculturementioning

confidence: 99%

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Climate change in Argentina: trends, projections, impacts and adaptation

Barros

Boninsegna²,

Camilloni

et al. 2014

WIREs Climate Change

270

156

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In most of Argentina, the warming since 1901 was a little lower than the global average, although with strong trends in temperature extremes and in heat waves during the most recent decades. There was a remarkable increase in precipitation over most of subtropical Argentina, especially since 1960. This has favored agriculture yields and the extension of crop lands into semiarid regions, but this increase also came with more frequent heavy rainfalls and consequent flooding of rural and urban areas. Since the early 1970s, the main rivers of the Plata Basin have increased their mean flows, but this was attributable not only to increased precipitation, but also to land use changes. In contrast, over the Andes Mountains, reduced rainfall and increased temperature has led to glaciers receding and reduced river flows. Climate projections for the first half of this century maintain observed trends and raise additional concerns that in most cases can be dealt with timely adaptation policies. However, by the end of this century, under an extreme emissions scenario, the projected warming reaches 3.5°C in the north of the country with respect to present‐day conditions. There is insufficient knowledge to assume that this warming would not create severe damages to the people and the economy of Argentina. Because of the damages and casualties that heat waves and extreme precipitation events are already producing, the first and most urgent adaptation required is to reinforce early warning systems and contingency planning to cope with climatic extremes and their consequences on health. WIREs Clim Change 2015, 6:151–169. doi: 10.1002/wcc.316 This article is categorized under: Trans‐Disciplinary Perspectives > National Reviews

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Section: Impactsmentioning

confidence: 99%

Section: Agriculturementioning

confidence: 99%

Climate change in Argentina: trends, projections, impacts and adaptation

Barros

Boninsegna²,

Camilloni

et al. 2014

WIREs Climate Change

270

156

View full text Add to dashboard Cite

show abstract

“…Temperature is the most affected and predictable variable under climate change scenarios (IPCC, 2014) and rising minimum temperatures are projected to continue (Alexander et al, 2006;Sillmann et al, 2013a;Sillmann et al, 2013b). Empirical regressions between observed or simulated crop yield (mainly wheat) and historical temperature data have shown that temperate cereals grain yield is strongly correlated to minimum temperature (Lobell and Ortiz-Monasterio, 2007;Magrin et al, 2009;Peltonen-Sainio et al, 2010). Although variations across cropping regions exist, the trend is that the higher the minimum temperatures are, the lower the grain yield is.…”

Section: Introductionmentioning

confidence: 99%

Post-anthesis warm nights reduce grain weight in field-grown wheat and barley

García

Serrago

Dreccer

et al. 2016

Field Crops Research

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“…The increase of minimum temperature results in increased wheat and barley respiration rates and shorter grain filling period diminishing their yields (Magrin et al, 2009;Verón et al, 2015). According to García et al (2015), wheat and barley yields were reduced under increased minimum temperatures by 7% without considering technological improvements.…”

Section: Decadal To Multidecadalmentioning

confidence: 99%