Arid
DOI10.1016/j.agwat.2014.01.010
Adaptive strategies of on-farm water management under water supply constraints in south-eastern Spain
Martinez-Alvarez, V.; Garcia-Bastida, P. A.; Martin-Gorriz, B.; Soto-Garcia, M.
通讯作者Martinez-Alvarez, V.
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2014
卷号136页码:59-67
英文摘要

The study analyses the effect of irrigation water constraints on-farm management in the Campo de Cartagena Irrigation District (south-eastern Spain), which is characterised by a semi-arid climate with a marked structural water deficit. The methodology applied was the comparative assessment of management indicators during two periods with very differing water availability. A set of performance indicators was selected and calculated to assess the effects on on-farm water management and productivity.


The results indicate low productivity sensitivity to water supply constraints since the farmers adopt a number of adaptive strategies, such as intensifying the extraction of brackish groundwater, reducing the irrigated surface area of short-cycle crops, applying deficit irrigation, and even desalinating brackish groundwater in the more sensible to salinity crops. As a consequence of managing water with a greater salinity the leachable fraction needed is increased, giving rise to greater irrigation requirements. Moreover, the greater salinity of the irrigation water causes lower yields in the majority of crops. Although these adaptive strategies let the farmers maintaining their activity under water scarcity periods, their effect in the groundwater and soil salinization as well as in the crop production costs and yields can be unsustainable in the mid-long term. (C) 2014 Elsevier B.V. All rights reserved.


英文关键词Performance indicators Water scarcity Irrigation strategies Annual relative irrigation supply (ARIS) Desalination Deficit irrigation
类型Article
语种英语
国家Spain
收录类别SCI-E
WOS记录号WOS:000334001200007
WOS关键词IRRIGATION WATER ; SEMIARID CLIMATE ; SE SPAIN ; PERFORMANCE ; INDICATORS ; SCARCITY ; COMMUNICATION ; MODERNIZATION ; PRODUCTIVITY ; BENCHMARKING
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/180515
作者单位Univ Politecn Cartagena, Escuela Tecn Super Ingn Agron, Cartagena 30203, Spain
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GB/T 7714
Martinez-Alvarez, V.,Garcia-Bastida, P. A.,Martin-Gorriz, B.,et al. Adaptive strategies of on-farm water management under water supply constraints in south-eastern Spain[J],2014,136:59-67.
APA Martinez-Alvarez, V.,Garcia-Bastida, P. A.,Martin-Gorriz, B.,&Soto-Garcia, M..(2014).Adaptive strategies of on-farm water management under water supply constraints in south-eastern Spain.AGRICULTURAL WATER MANAGEMENT,136,59-67.
MLA Martinez-Alvarez, V.,et al."Adaptive strategies of on-farm water management under water supply constraints in south-eastern Spain".AGRICULTURAL WATER MANAGEMENT 136(2014):59-67.
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