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Salt accumulation in irrigated loamy soil; Lower Euphrates Valley, Syria

机译：灌溉壤土中的盐分积累;叙利亚下幼发拉底河谷

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In arid and semi-arid regions, soil salinity is a common problem threatening fertility of irrigated lands. The Lower Euphrates valley in Syria suffers from salt accumulation in soil because of the inappropriate climatic conditions, using the traditional methods in irrigation; flood irrigation. HYDRUS 1-D model was used to simulate water flow, salt transport and root water uptake processes in this area. Data from seventy soil profiles were acquired from the pedological reports obtained from the Ministry of Irrigation in Syria. Representative monthly evapotranspiration (ET 0 ) values in Deir Ez-Zor were taken from the FAO CLIMWAT database. The seventy soil profiles were grouped in fourteen zones distributed over the study area. For each zone, the monthly recharge and its salt concentration was estimated. The model was run for 24-month duration. The results showed increasing in soil salinity and, consequently, increasing in salts load transmitted into groundwater. Accordingly, mitigation measures have been suggested.
机译：在干旱和半干旱地区，土壤盐分是威胁灌溉土地肥力的普遍问题。叙利亚的下幼发拉底河谷由于气候条件不适当而遭受土壤盐分的积聚，采用传统的灌溉方法;洪水灌溉。 HYDRUS 1-D模型用于模拟该区域的水流，盐分迁移和根系吸水过程。从叙利亚灌溉部获得的教育报告中获得了70种土壤剖面的数据。 Deir Ez-Zor中的代表性月蒸散量（ET 0）值取自FAO CLIMWAT数据库。将70个土壤剖面分为研究区域分布的14个区域。对于每个区域，估计每月的补给量及其盐浓度。该模型运行了24个月。结果表明，土壤盐分增加，因此盐分传递到地下水中的负荷增加。因此，已经提出了缓解措施。

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