干旱区生态环境知识资源中心(Arid): Modeling maize and soybean responses to climatic change and soil degradation in a region of South America

Arid

DOI	10.1002/agj2.20585
	Modeling maize and soybean responses to climatic change and soil degradation in a region of South America
	Casali, Lucia; Herrera, Juan M.; Rubio, Gerardo
通讯作者	Rubio, G (corresponding author), Univ Buenos Aires, Sch Agr, Av San Martin 4453,1417DSE, Buenos Aires, DF, Argentina.
来源期刊	AGRONOMY JOURNAL
ISSN	0002-1962
EISSN	1435-0645
出版年	2021
卷号	113 期号:2 页码:1381-1393
英文摘要	Climatic change effects on crop yields are expected to be crop- and site specific. Here, Decision Support System for Agrotechnology Transfer models were used to evaluate climatic change effects and mitigation strategies on maize (Zea mays L.) and soybean [Glycine max (L.) Merr.] yields in soils of the subtropical and semi-arid region of Chaco. Simulations were performed for the DK747 and A8000 genotypes, calibrated for the CERES-Maize model in a previous report and for the CROPGRO-Soybean model in the present study, respectively. Both crops markedly differ in their response to climatic change and putative levels of atmospheric CO2 concentration. The observed significant reductions in maize yields in future climate scenarios (5-42% compared with the baseline, 1986-2010) were more associated with increased temperatures that shortened the crop cycle than with water stress. Delaying the sowing date is a feasible strategy to mitigate this effect. Projected temperature increases are expected to play a secondary role in determining soybean yields. Instead, water stress will continue to be an important constraint to soybean yield in the context of global warming, but this effect is strongly affected by rainfall regimes. Responses to raising CO2 levels were more pronounced in soybean (+10-40%) than in maize (+2-4%). Soil degradation exacerbated the negative effects of global warming on crop yields, especially on maize, which highlights the importance of soil conservation practices. The observed high interannual climatic variability and the different sensitivities of maize and soybean to climatic variables indicate that crop diversification would be the key to improve the resilience of the agrosystems under the future scenarios.
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000631906600001
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349376
作者单位	[Casali, Lucia; Herrera, Juan M.; Rubio, Gerardo] Inst Invest Biociencias Agr & Ambientales CONICET, RA-1417 Buenos Aires, DF, Argentina; [Casali, Lucia; Rubio, Gerardo] Univ Buenos Aires, Soil Fertil & Fertilizers, Sch Agr, Av San Martin 4453,1417DSE, Buenos Aires, DF, Argentina; [Herrera, Juan M.] Agroscope, Plants & Plant Prod, Route Duillier 50, Nyon, Switzerland
推荐引用方式 GB/T 7714	Casali, Lucia,Herrera, Juan M.,Rubio, Gerardo. Modeling maize and soybean responses to climatic change and soil degradation in a region of South America[J],2021,113(2):1381-1393.
APA	Casali, Lucia,Herrera, Juan M.,&Rubio, Gerardo.(2021).Modeling maize and soybean responses to climatic change and soil degradation in a region of South America.AGRONOMY JOURNAL,113(2),1381-1393.
MLA	Casali, Lucia,et al."Modeling maize and soybean responses to climatic change and soil degradation in a region of South America".AGRONOMY JOURNAL 113.2(2021):1381-1393.