Drip irrigation with brackish water is crucial for the efficient use of scarce water resources and ecological restoration. A 2‐year study was conducted to examine the effects of drip irrigation with brackish water on soil physicochemical properties and on the desert plant Haloxylon ammodendron which is essential in maintaining the ecological balance in desert areas. Field experiments were conducted to examine the effects of brackish water irrigation with different salinities (1, 3, 6, 9 and 12 g l⁻¹) on the salt migration, ion contents and chemical characteristics of the soil solution. For irrigation salinities between 1 and 6 g l⁻¹, the soil water content increased with elevated salinity, whereas, under treatments with salinities of 9 and 12 g l⁻¹, the soil water content showed a decreasing trend with elevated salinity. Brackish water irrigation could accumulate salt and the soil salt content in the 60–80 cm soil layer was the highest; With elevated irrigation salinity, the changes in SO₄²⁻, Cl⁻, K⁺ and Na⁺ ion contents in the soil increased significantly. The cations in the soil aqueous solution gradually changed from Ca²⁺ to Na⁺, the anions changed from SO₄²⁻ to Cl⁻ and the hydrochemical facies changed from SO₄²⁻ − Ca²⁺·Mg²⁺ to SO₄²⁻·Cl⁻ – Na⁺. © 2020 John Wiley & Sons, Ltd.

中文翻译：

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苦咸水滴灌对玛纳斯河流域典型沙漠植物（梭形哈密顿）的土壤化学性质的影响

用微咸水进行滴灌对有效利用稀缺水资源和生态恢复至关重要。进行了为期两年的研究，研究了微咸水滴灌对土壤理化特性以及对沙漠植物梭梭梭（Haloxylon ammodendron）的影响，这对于维持沙漠地区的生态平衡至关重要。进行了野外试验，以研究不同盐度（1、3、6、9和12 g l ^-1）的微咸水灌溉对土壤溶液中盐分迁移，离子含量和化学特性的影响。对于1到6 g l ^-1的灌溉盐度，土壤水含量随盐度的升高而增加，而在盐度9到12 g l的处理下^-1，随着盐分的升高，土壤含水量呈下降趋势。咸淡水灌溉会累积盐分，并且60-80 cm土层中的土壤盐分含量最高。与升高的灌溉盐度，在SO的变化₄ ^2-，氯^-，K ⁺和Na ⁺在土壤离子含量显著增加。在土壤中的水溶液选自Ca逐渐改变阳离子²⁺与Na ⁺，阴离子从SO变为₄ ^2-对氯^-和水化学相从SO改变₄ ^2- -钙²⁺ ·镁²⁺到SO₄ ^2- ·氯^- -钠⁺。分级为4 +©2020 John Wiley＆Sons，Ltd.