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