Arid
DOI10.1016/j.agwat.2015.08.003
Estimating groundwater use patterns of perennial and seasonal crops in a Mediterranean irrigation scheme, using remote sensing
Hunink, Johannes E.1; Contreras, Sergio1; Soto-Garcia, Mariano2,3; Martin-Gorriz, Bernardo1,3; Martinez-Alvarez, Victoriano1,3; Baille, Alain1,3
通讯作者Hunink, Johannes E.
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2015
卷号162页码:47-56
英文摘要

This work explores the use of satellite-based vegetation indices (VI) to study groundwater use in a semi-arid agricultural irrigated area. The objective is to obtain insight in spatial and temporal patterns and differences in groundwater usage of perennial (mainly fruit trees) and seasonal crops (mainly row vegetable crops) under varying climatic conditions. Cropping intensities of seasonal crops are derived for each sector and irrigation water applied (IWA) is calculated using VI-based (NDVI from MODIS) actual evapotranspiration estimates and local efficiency factors. Groundwater use is then derived as the residual of total IWA and surface water supplies for each sector and crop type. The results of IWA following this methodology were compared with survey-based results for two crop types. Results correlated well, but deviate most during drought period, likely due to salt leaching practices. Monthly groundwater use patterns and spatial and temporal differences during normal water availability and drought conditions are reported. On average, about 50% of irrigation water is extracted from aquifers, but during droughts this percentage increases considerably. Perennial crops show sharper increases in groundwater use under such conditions than seasonal crops. Overall, seasonal crops put more pressure on the groundwater resource than perennial crops. Our results and methodology will be useful for water resource managers, and policy makers concerned with the role of groundwater resources on the sustainability of semiarid agricultural regions. (C) 2015 Elsevier B.V. All rights reserved.


英文关键词Irrigation strategies Water balance Groundwater usage Water scarcity Remote sensing
类型Article
语种英语
国家Spain
收录类别SCI-E
WOS记录号WOS:000362144100004
WOS关键词WATER PRODUCTIVITY ; VEGETATION INDEX ; GLOBAL CHANGE ; EVAPOTRANSPIRATION ; COEFFICIENTS ; NDVI ; SYSTEM ; WITHDRAWALS ; PERFORMANCE ; MANAGEMENT
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/2XILL650/185623
作者单位1.FutureWater, Cartagena, Spain;
2.Comunidad Regantes del Campo Cartagena, Cartagena, Spain;
3.Univ Politecn Cartagena, Cartagena, Spain
推荐引用方式
GB/T 7714
Hunink, Johannes E.,Contreras, Sergio,Soto-Garcia, Mariano,et al. Estimating groundwater use patterns of perennial and seasonal crops in a Mediterranean irrigation scheme, using remote sensing[J],2015,162:47-56.
APA Hunink, Johannes E.,Contreras, Sergio,Soto-Garcia, Mariano,Martin-Gorriz, Bernardo,Martinez-Alvarez, Victoriano,&Baille, Alain.(2015).Estimating groundwater use patterns of perennial and seasonal crops in a Mediterranean irrigation scheme, using remote sensing.AGRICULTURAL WATER MANAGEMENT,162,47-56.
MLA Hunink, Johannes E.,et al."Estimating groundwater use patterns of perennial and seasonal crops in a Mediterranean irrigation scheme, using remote sensing".AGRICULTURAL WATER MANAGEMENT 162(2015):47-56.
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