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Agricultural irrigation of vine crops from desalinated and brackish groundwater under an economic perspective. A case study in Siġġiewi, Malta

Author

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  • Aparicio, Jesus
  • Tenza-Abril, Antonio
  • Borg, Malcolm
  • Galea, John
  • Candela, Lucila

Abstract

Maltese agriculture faces great challenges due to the severe scarcity ofwater. Sufficientwater resources, in quantity and quality, are necessary to cover the demand in the production of wine grape, one of the most important crops in Maltese agriculture. But also, economic efficiency is essential in the grape cultivation. A Cost-Benefit Analysis (CBA) is defined for Maltese vineyards in the Siġġiewi region, considering two irrigation scenarios, irrigation with groundwater or “do-nothing”, comparedwith the “use non-conventional waters” from mixing water from a small desalination plant and groundwater. For the alternative ‘mixing desalinatedwater with groundwater’ it is possible to improve water availability and quality for vine crops, while increasing economic benefits for farmer. The results indicate a profitable project fromaminimumarea of 1 ha, but final benefit is highly dependent on the irrigated surface extension according to water price. Desalination, compared with other type of nonconventional water is considered the best option in this assessment with a small reverse osmosis (RO) desalination plant (120 m3 /day) for covering the irrigation needs.

Suggested Citation

  • Aparicio, Jesus & Tenza-Abril, Antonio & Borg, Malcolm & Galea, John & Candela, Lucila, 2018. "Agricultural irrigation of vine crops from desalinated and brackish groundwater under an economic perspective. A case study in Siġġiewi, Malta," MPRA Paper 92268, University Library of Munich, Germany, revised 04 Sep 2018.
    • Handle: RePEc:pra:mprapa:92268
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    References listed on IDEAS

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    1. Zhang, Yuehong & Li, Xianyue & Šimůnek, Jirí & Shi, Haibin & Chen, Ning & Hu, Qi & Tian, Tong, 2021. "Evaluating soil salt dynamics in a field drip-irrigated with brackish water and leached with freshwater during different crop growth stages," Agricultural Water Management, Elsevier, vol. 244(C).

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    More about this item

    Keywords

    Cost Benefit Analysis Desalinated water Groundwater Vine crops Agricultural management;

    JEL classification:

    • Q01 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General - - - Sustainable Development
    • Q14 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Finance
    • Q16 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - R&D; Agricultural Technology; Biofuels; Agricultural Extension Services
    • Q56 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environment and Development; Environment and Trade; Sustainability; Environmental Accounts and Accounting; Environmental Equity; Population Growth

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