干旱区生态环境知识资源中心(Arid): Climate change impacts on water sustainability of South African crop production

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DOI	10.1088/1748-9326/ac80cf
	Climate change impacts on water sustainability of South African crop production
	Bonetti, Sara; Sutanudjaja, Edwin H.; Mabhaudhi, Tafadzwanashe; Slotow, Rob; Dalin, Carole
通讯作者	Bonetti, S
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2022
卷号	17 期号:8
英文摘要	Agricultural production in arid and semi-arid regions is particularly vulnerable to climate change, which, combined with projected food requirements, makes the sustainable management of water resources critical to ensure national and global food security. Using South Africa as an example, we map the spatial distribution of water use by seventeen major crops under current and future climate scenarios, and assess their sustainability in terms of water resources, using the water debt repayment time indicator. We find high water debts, indicating unsustainable production, for potatoes, pulses, grapes, cotton, rice, and wheat due to irrigation in arid areas. Climate change scenarios suggest an intensification of such pressure on water resources, especially in regions already vulnerable, with a country-scale increase in irrigation demand of between 6.5% and 32% by 2090. Future land use planning and management should carefully consider the spatial distribution and local sustainability of crop water requirements to reduce water consumption in water risk hotspots and guarantee long-term food security.
英文关键词	water sustainability water debt indicator South African crop production water resources food security water footprint climate change
类型	Article
语种	英语
开放获取类型	Green Published, Green Accepted, gold
收录类别	SCI-E
WOS记录号	WOS:000829575800001
WOS关键词	FOOTPRINT ASSESSMENT ; YIELD ; DROUGHT ; SORGHUM
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392507
推荐引用方式 GB/T 7714	Bonetti, Sara,Sutanudjaja, Edwin H.,Mabhaudhi, Tafadzwanashe,et al. Climate change impacts on water sustainability of South African crop production[J],2022,17(8).
APA	Bonetti, Sara,Sutanudjaja, Edwin H.,Mabhaudhi, Tafadzwanashe,Slotow, Rob,&Dalin, Carole.(2022).Climate change impacts on water sustainability of South African crop production.ENVIRONMENTAL RESEARCH LETTERS,17(8).
MLA	Bonetti, Sara,et al."Climate change impacts on water sustainability of South African crop production".ENVIRONMENTAL RESEARCH LETTERS 17.8(2022).