干旱区生态环境知识资源中心(Arid): Future climate change could reduce irrigated and rainfed wheat water footprint in arid environments

Arid

DOI	10.1016/j.scitotenv.2021.150991
	Future climate change could reduce irrigated and rainfed wheat water footprint in arid environments
	Deihimfard, Reza; Rahimi-Moghaddam, Sajjad; Collins, Brian; Azizi, Khosro
通讯作者	Rahimi-Moghaddam, S (corresponding author)，Lorestan Univ, Fac Agr, Dept Agron & Plant Breeding, Khorramabad 6815144316, Iran.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	807
英文摘要	The concept of water footprint (WF) has been used to manage freshwater resources for the past two decades and is considered as indicator of the sustainability of agricultural systems. Accordingly, the current study aimed to quantify WF and its components in the future climate for rainfed and irrigated wheat agro-ecosystems in 17 provinces of Iran located in arid or semi-arid environments. The provinces were divided into five climate classes. The simulations were conducted under current (1980-2010) and future climate (2040-2070) using the Agricultural Production Systems siMulator (APSIM) crop model, following the Agricultural Model Intercomparison and Improvement Project (AgMIP) protocol. Baseline simulations indicated that the total WF, averaged across all climate classes, was 1148 m(3) t(-1) for irrigated and 1155 m(3) t(-1) for rainfed wheat. WF was projected to decline in the future compared to baseline in both irrigated and rainfed systems mostly because of increases in yield of +9% in rainfed systems and 35% in irrigated systems, and decreases in water consumption by -5.4% and -10.1%, respectively. However, the share of gray water footprint (WF gray ) was projected to increase in the near future for both rainfed (+5.4%) and irrigated (+6.9%) systems. These findings suggest that cleaner and more sustainable production (i.e. obtaining grain yield under optimal water and nitrogen consumption) could be achieved in irrigated and rainfed wheat ago-ecosystems if optimal N fertilizer management is adopted. Additionally, rainfed cultivation can be further expanded in some areas which is expected to result in a substantial reduction in blue water (i.e. less irrigation), especially in sub-humid and semi-arid cool areas. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	APSIM Evapotranspiration Iran RCP scenarios Multi-model ensemble Water footprint
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000744133400007
WOS关键词	CHANGE IMPACTS ; RIVER-BASIN ; CROP MODELS ; YIELD ; MAIZE ; ADAPTATION ; SIMULATION ; IMPLEMENTATION ; UNCERTAINTIES ; STRATEGIES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376913
作者单位	[Deihimfard, Reza] Shahid Beheshti Univ, Environm Sci Res Inst, Dept Agroecol, Tehran, Iran; [Rahimi-Moghaddam, Sajjad; Azizi, Khosro] Lorestan Univ, Fac Agr, Dept Agron & Plant Breeding, Khorramabad 6815144316, Iran; [Collins, Brian] James Cook Univ, Coll Sci & Engn, Townsville, Qld 4811, Australia
推荐引用方式 GB/T 7714	Deihimfard, Reza,Rahimi-Moghaddam, Sajjad,Collins, Brian,et al. Future climate change could reduce irrigated and rainfed wheat water footprint in arid environments[J],2022,807.
APA	Deihimfard, Reza,Rahimi-Moghaddam, Sajjad,Collins, Brian,&Azizi, Khosro.(2022).Future climate change could reduce irrigated and rainfed wheat water footprint in arid environments.SCIENCE OF THE TOTAL ENVIRONMENT,807.
MLA	Deihimfard, Reza,et al."Future climate change could reduce irrigated and rainfed wheat water footprint in arid environments".SCIENCE OF THE TOTAL ENVIRONMENT 807(2022).