Alrwis Khalid Nahar, Ghanem Adel Mohamed, Alnashwan Othman Saad, Al Duwais Abdul Aziz M, Alaagib Sharaf Aldin Bakri, Aldawdahi Nageeb Mohammed
Department of Agricultural Economics, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia.
Saudi J Biol Sci. 2021 Jan;28(1):191-195. doi: 10.1016/j.sjbs.2020.09.038. Epub 2020 Sep 24.
This research measures the impact of water scarcity on agricultural economic development and economic development indicators in the Kingdom of Saudi Arabia during 1995-2018. By examining the current status of available water resources and their uses, and estimating a model to study the impact of water scarcity on agricultural economic development. The study relied on descriptive and standard economic analysis to estimate the proposed regression model. It found that a 10% change in the amount of water resources available leads to a 5.1% change in the same direction of the crop area. A 10% change in the estimated crop area results in a 1.5% change in the same direction of the total agricultural output value. A 10% change in employment and agricultural loans leads to a change in the same direction of the aggregate agricultural output value of 5.1% and 7.2%, respectively. A 10% change in the total value of the estimated agricultural output leads to a 2.9% change in the same direction of GDP. Thus, a lack of water resources will decrease the crop area and have a negative impact on the value of agricultural output, thereby impacting GDP. We therefore include policy recommendations for the conservation of water resources: The government should stop the export of virtual water, particularly for water-depleting products; an economic accounting framework for water should be introduced to monitor the amount of water in excess of the water codification for various crops prevailing in the crop composition.
本研究衡量了1995 - 2018年期间水资源短缺对沙特阿拉伯王国农业经济发展和经济发展指标的影响。通过考察可用水资源的现状及其利用情况,并估计一个模型来研究水资源短缺对农业经济发展的影响。该研究依靠描述性和标准经济分析来估计所提出的回归模型。研究发现,可用水资源量10%的变化会导致作物种植面积同向变化5.1%。估计作物种植面积10%的变化会导致农业总产值同向变化1.5%。就业和农业贷款10%的变化分别会导致农业总产值同向变化5.1%和7.2%。估计农业总产值10%的变化会导致国内生产总值同向变化2.9%。因此,水资源短缺将减少作物种植面积,并对农业产值产生负面影响,进而影响国内生产总值。我们因此提出了水资源保护的政策建议:政府应停止虚拟水的出口,特别是针对耗水型产品;应引入水的经济核算框架,以监测作物构成中各种作物超过水编码量的水量。