Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0378-3774 |
EISSN | 1873-2283 |
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 |
推荐引用方式 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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