干旱区生态环境知识资源中心(Arid): Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices

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DOI	10.3390/agronomy9100639
	Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices
	Freduah, Bright S.1; MacCarthy, Dilys S.1; Adam, Myriam 2,3,4,5; Ly, Mouhamed 6,7,8; Ruane, Alex C.9,10; Timpong-Jones, Eric C.11; Traore, Pierre S.4,12; Boote, Kenneth J.13; Porter, Cheryl 13; Adiku, Samuel G. K.14
通讯作者	MacCarthy, Dilys S.
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2019
卷号	9 期号:10
英文摘要	Climate change is estimated to exacerbate existing challenges faced by smallholder farmers in Sub-Sahara Africa. However, limited studies quantify the extent of variation in climate change impact under these systems at the local scale. The Decision Support System for Agro-technological Transfer (DSSAT) was used to quantify variation in climate change impacts on maize yield under current agricultural practices in semi-arid regions of Senegal (Nioro du Rip) and Ghana (Navrongo and Tamale). Multi-benchmark climate models (Mid-Century, 2040-2069 for two Representative Concentration Pathways, RCP4.5 and RCP8.5), and multiple soil and management information from agronomic surveys were used as input for DSSAT. The average impact of climate scenarios on grain yield among farms ranged between -9% and -39% across sites. Substantial variation in climate response exists across farms in the same farming zone with relative standard deviations from 8% to 117% at Nioro du Rip, 13% to 64% in Navrongo and 9% to 37% in Tamale across climate models. Variations in fertilizer application, planting dates and soil types explained the variation in the impact among farms. This study provides insight into the complexities of the impact of climate scenarios on maize yield and the need for better representation of heterogeneous farming systems for optimized outcomes in adaptation and resilience planning in smallholder systems.
英文关键词	cereals general circulation models climate change DSSAT Agriculture AgMIP
类型	Article
语种	英语
国家	Ghana ; Burkina Faso ; France ; Mali ; Niger ; Senegal ; Germany ; USA ; Mauritius
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000498268600073
WOS关键词	SUB-SAHARAN AFRICA ; ZEA-MAYS L. ; POTENTIAL IMPACTS
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
EI主题词	2019-10-01
来源机构	International Crops Research Institute for the Semi-Arid Tropics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310157
作者单位	1.Univ Ghana, CBAS, Sch Agr, Soil & Irrigat Res Ctr, POOB LG 68, Accra, Ghana; 2.CIRAD, UMR AGAP, Bobo Dioulasso 01, Burkina Faso; 3.Univ Montpellier, INRA, CIRAD, AGAP,Montpellier SupAgro, F-34000 Montpellier, France; 4.Int Crops Res Inst Semi Arid Trop, BP 320, Bamako, Mali; 5.Inst Natl Environm & Rech Agr, O4 BP 8645, Ouagadougou, Burkina Faso; 6.Ctr Reg AGRHYMET, 425 Blvd lUniv,BP 11011, Niamey, Niger; 7.Cheikh Anta Diop Univ, LPAOSF ESP, Dakar 5085, Senegal; 8.Climate Analyt, D-10961 Berlin, Germany; 9.NASA, Goddard Inst Space Studies, 2880 Broadway, New York, NY 10025 USA; 10.Columbia Univ, Ctr Climate Syst Res, 2880 Broadway, New York, NY 10025 USA; 11.Univ Ghana, CBAS, Sch Agr, Livestock & Poultry Res Ctr, POB LG 68, Accra, Ghana; 12.Manobi Africa PLC, Level 2 Max City Bldg,Remy Ollier St, Port Louis 11602, Mauritius; 13.Univ Florida, Dept Agr & Biol Engn, Frazier Rogers Hall, Gainesville, FL 32611 USA; 14.Univ Ghana, Sch Agr, Dept Soil Sci, POB LG 245, Accra, Ghana
推荐引用方式 GB/T 7714	Freduah, Bright S.,MacCarthy, Dilys S.,Adam, Myriam,et al. Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices[J]. International Crops Research Institute for the Semi-Arid Tropics,2019,9(10).
APA	Freduah, Bright S..,MacCarthy, Dilys S..,Adam, Myriam.,Ly, Mouhamed.,Ruane, Alex C..,...&Adiku, Samuel G. K..(2019).Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices.AGRONOMY-BASEL,9(10).
MLA	Freduah, Bright S.,et al."Sensitivity of Maize Yield in Smallholder Systems to Climate Scenarios in Semi-Arid Regions of West Africa: Accounting for Variability in Farm Management Practices".AGRONOMY-BASEL 9.10(2019).