干旱区生态环境知识资源中心(Arid): Complex Policy Mixes are Needed to Cope with Agricultural Water Demands Under Climate Change

Arid

DOI	10.1007/s11269-023-03481-5
	Complex Policy Mixes are Needed to Cope with Agricultural Water Demands Under Climate Change
	Martinez-Valderrama, Jaime; Olcina, Jorge; Delacamara, Gonzalo; Guirado, Emilio; Maestre, Fernando T.
通讯作者	Martínez-Valderrama, J
来源期刊	WATER RESOURCES MANAGEMENT
ISSN	0920-4741
EISSN	1573-1650
出版年	2023
卷号	37 期号:6-7 页码:2805-2834
英文摘要	The divergence between agricultural water use and the annual supply of water resources (water gap) has been increasing for decades. The forecast is that this water gap will continue to widen, compromising the water security of a large share of the global population. On the one hand, the increase in demand is attributed to an ever-growing population that, in addition, is adopting a high-water consumption per capita lifestyle (e.g., meat-rich diet, increased use of biofuels and of irrigated agriculture). On the other hand, climate change is increasing aridification and the spatio-temporal heterogeneity of precipitation worldwide. The water gap is particularly acute in drylands, where development and food security has been based on the massive exploitation of water resources, particularly groundwater. Here we analyze the mechanisms underlying this water gap, which is mainly driven by water use in agriculture, and suggest suitable solutions that can help to close it. Using causal diagrams, we show how population generates different demands that create a water gap that prevailing supply-side solutions cannot close. Indeed, it has been widening over the years because water consumption has grown exponentially. This behaviour is explained by a series of mechanisms that it is necessary to understand to realize the complexity of water scarcity problems. For solving the water gap, we propose and exemplify eight lines of action that can be combined and tailored to each territory. Our analyses corroborate the urgent need to plan an integral management of water resources to avoid widespread scenarios of water scarcity under future climatic conditions.
英文关键词	Water gap Drylands Supply-side solutions Water management Causal diagrams Desertification
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000943630900001
WOS关键词	SUSTAINABLE DEVELOPMENT ; GROUNDWATER DEPLETION ; SEAWATER DESALINATION ; EMPIRICAL-ANALYSIS ; LAND DEGRADATION ; REVERSE-OSMOSIS ; CROP IRRIGATION ; GLOBAL LAND ; FOOD ; DESERTIFICATION
WOS类目	Engineering, Civil ; Water Resources
WOS研究方向	Engineering ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399146
推荐引用方式 GB/T 7714	Martinez-Valderrama, Jaime,Olcina, Jorge,Delacamara, Gonzalo,et al. Complex Policy Mixes are Needed to Cope with Agricultural Water Demands Under Climate Change[J],2023,37(6-7):2805-2834.
APA	Martinez-Valderrama, Jaime,Olcina, Jorge,Delacamara, Gonzalo,Guirado, Emilio,&Maestre, Fernando T..(2023).Complex Policy Mixes are Needed to Cope with Agricultural Water Demands Under Climate Change.WATER RESOURCES MANAGEMENT,37(6-7),2805-2834.
MLA	Martinez-Valderrama, Jaime,et al."Complex Policy Mixes are Needed to Cope with Agricultural Water Demands Under Climate Change".WATER RESOURCES MANAGEMENT 37.6-7(2023):2805-2834.