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Improving water management in date palms using economic value of water footprint and virtual water trade concepts in Iran

机译：利用伊朗水占地面积经济价值改善枣树水管理

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Iran has the second rank in production and cultivation area and the fifth in exporting date palm in the world. Even though the date palm has a high economic value, due to the water crisis in Iran, the effect of date palm production on the water resources along with its economic value should be considered. This research assesses the index of water footprint and economic value of water footprint for three cultivars of date palms, including the soft, semi-dry and dry during the period 2008-2016. Through this study, these indices have been computed for date palms and compared with the other agricultural products in Iran. Finally, the results are used for prioritization of the cultivated area. The outputs show that the average footprint and economic value of water footprint for date palm is 3.02 m(3)/kg and 0.59 USD/m(3), respectively, which in this regards the share of green, blue and grey water footprint are 9.1 %, 76.9 %, and 14 %. The maximum value of water footprint (8.6 m(3)/kg) and economic value of water footprint (1.49 USD/m(3)) belongs to the dry date palm while the minimum value of those indices is 0.97 m(3)/kg and 0.19 USD/m(3) which belongs to the semi-dry date palm. In comparison the date palm with 43 agricultural products in Iran, the dry date palm is ranked 33 in water footprint and 18 in the economic value of water footprint while the semi-dry and the soft date palms are ranked 33 and 34 in water footprint and 29 and 30 in the economic value of water footprint. The volume of water footprint for date palm is about 2437 million cubic meters (MCM) per year in Iran, which the share of soft, semi-dry, and dry date palms are 79.6 %, 18 %, and 2.45 % respectively. The volume of the exported virtual water is 1243 MCM with 733 million USD economic value of water footprint, whereas the net benefit of exported date palm is one-quarter of its economic value of water footprint. The results of this study show that the indices discussed through this study capable to provide valuable information for prioritization of date palm cultivation and management of water resources in Iran.
机译：伊朗在世界生产和栽培区的第二级等级，以及世界出口日期掌上的第五等级。尽管日期掌在经济价值很高，但由于伊朗的水危机，应考虑日期棕榈生产对水资源的影响以及其经济价值。本研究评估了三种枣椰树水占地面积的水占卜和经济价值指标，包括2008 - 2016年期间软，半干燥和干燥。通过这项研究，这些指数已经计算了枣椰树，并与伊朗的其他农产品相比。最后，结果用于栽培区域的优先排序。该产出分别表明，枣掌的水平占地面积的平均占地面积和经济价值分别为3.02米（3）/ kg和0.59美元/米（3），这在这方面的份额是绿色，蓝色和灰水脚印的份额9.1％，76.9％和14％。水占地面积的最大值（8.6米（3）/ kg）和水占地面积的经济价值（1.49美元/ m（3））属于干燥的枣掌，而这些指数的最小值为0.97米（3）/ kg和0.19美元/ m（3），属于半干枣棕榈。与伊朗的43家农产品的日期掌上相比，干燥的枣手掌在水占地面积中排名33，在水占地面积的经济价值中排名33，而软枣棕榈树在水足迹中排名33和34。 29和30在水足迹的经济价值。枣掌量的水占地面积每年为伊朗每年约2.437亿立方米（MCM），柔软，半干燥和干旱枣椰树的份额分别为79.6％，18％和2.45％。出口的虚拟水的数量为1243 MCM，拥有73300万美元的水占地面积，而出口日期Palm的净利润是其经济价值的水平。本研究的结果表明，通过本研究讨论的指数能够提供有价值的信息，以提供伊朗水利水资源的优先级排序。

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