Impacts of climate changes on risk zoning for cowpea in the Amazonian tropical conditions

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY Bragantia Pub Date : 2021-01-01 DOI:10.1590/1678-4499.20210118
J. Pinto, D. P. Sousa, H. Nunes, Everaldo Barreiros de Souz, J. P. Melo-Abreu, Adriano Marlisom Leão Sousa, P. Souza
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引用次数: 1

Abstract

: The climate risk zoning was carried out for cowpea cultivated in northeastern Amazonia, Pará state, Brazil. Système d’Analyse Régionale des Risques Agroclimatologiques (SARRA) crop model was used and calibrated from data obtained in field experiments conducted between 2013 and 2016 in Castanhal, state of Pará. Low climate risk areas were defined as those with water requirement satisfaction index (WRSI) greater than or equal to 0.5 during flowering and early grain development and less than 20 mm of total rainfall during grain maturation and harvest for at least 80% of the simulated sowings of the crop. Simulations of the current and future climate conditions were carried out with the regional climate modelling system version 4 (RegCM4) nested with the HadGEM2 global circulation model with RCP 4.5 IPCC-AR4 scenario. The results show that climate changes are likely to reduce the duration of the optimal period for sowing cowpea in the mentioned region.
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气候变化对亚马逊热带条件下豇豆风险区划的影响
对巴西帕尔州亚马孙流域东北部豇豆种植区进行了气候风险区划。研究人员使用了 农业气候分析系统(SARRA)的作物模型,并根据2013年至2016年在帕尔州Castanhal进行的田间试验数据进行了校准。低气候风暴区是指开花和籽粒发育早期水分需求满足指数(WRSI)大于等于0.5,籽粒成熟和收获期间至少80%的模拟播种总降雨量小于20毫米的地区。利用区域气候模拟系统4 (RegCM4)和HadGEM2全球环流模式(RCP 4.5 IPCC-AR4情景)对当前和未来气候条件进行了模拟。结果表明,气候变化有可能缩短该地区豇豆最佳播种期的持续时间。
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来源期刊
Bragantia
Bragantia AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
2.40
自引率
8.30%
发文量
33
审稿时长
4 weeks
期刊介绍: Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas. A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005. É filiada à Associação Brasileira de Editores Científicos (ABEC).
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