Water scarcity and food security in the mediterranean region: The role of alternative water sources and controlled-environment agriculture

IF 2.3 3区 经济学 Q2 ECONOMICS
Ruslana Rachel Palatnik , Orna Raviv , Julia Sirota , Mordechai Shechter
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引用次数: 0

Abstract

Climate change and population growth exacerbate water scarcity in the Mediterranean region, threatening food security. A variety of modeling approaches that embed water into a Computable General Equilibrium (CGE) framework is available. However, only a few studies incorporate non-conventional, alternative water sources (e.g., desalination, treated, brackish) into economic analyses. Alternative water sources vary in energy and capital intensity and, therefore, in costs and externalities. We present the first study to introduce alternative water sources to a global CGE model. We also investigate the role of novel technologies of controlled-environment agriculture (CEA) that save water and land at the cost of higher energy intensity than traditional agriculture practices. The results show that the availability of alternative water sources increases the domestic production of grain crops in the North Mediterranean region. The countries that gain the most from CEA technologies are those with a higher share of irrigation and skilled labor. The results reflect the significant value of alternative water sources and CEA technologies to the agricultural sector. The outcomes also indicate that alternative water practices and CEA may bring about a positive trajectory in food security and the global economy, with a negligible effect on energy use.
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来源期刊
Water Resources and Economics
Water Resources and Economics Environmental Science-Water Science and Technology
CiteScore
5.00
自引率
0.00%
发文量
17
审稿时长
51 days
期刊介绍: Water Resources and Economics is one of a series of specialist titles launched by the highly-regarded Water Research. For the purpose of sustainable water resources management, understanding the multiple connections and feedback mechanisms between water resources and the economy is crucial. Water Resources and Economics addresses the financial and economic dimensions associated with water resources use and governance, across different economic sectors like agriculture, energy, industry, shipping, recreation and urban and rural water supply, at local, regional and transboundary scale. Topics of interest include (but are not restricted to) the economics of: Aquatic ecosystem services- Blue economy- Climate change and flood risk management- Climate smart agriculture- Coastal management- Droughts and water scarcity- Environmental flows- Eutrophication- Food, water, energy nexus- Groundwater management- Hydropower generation- Hydrological risks and uncertainties- Marine resources- Nature-based solutions- Resource recovery- River restoration- Storm water harvesting- Transboundary water allocation- Urban water management- Wastewater treatment- Watershed management- Water health risks- Water pollution- Water quality management- Water security- Water stress- Water technology innovation.
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