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对比浅层地下水与河水及降水的环境同位素数据表明，塔里木河下游浅层地下水直接起源于河水，其初始同位素组成为δＤ＝－７０．５‰，δ１８Ｏ＝－１０．５‰。稳定同位素研究证明，地下水中的高盐份主要是再度强烈蒸发的结果。利用环境氚，根据指数模型初步计算了地下水年龄和年平均补给量。
The comparison of the environmental isotope data of shallow groundwater with river water and precipitation shows that the shallow groundwater in the lower reaches of the Tarim River originated directly from the river. The initial isotopic composition of the groundwater is δD = -70.5 ‰ and δ18O = -10.5 ‰. Stable isotope studies have shown that the high salinity in groundwater is mainly the result of intense evaporation. Based on the exponential model, groundwater age and annual average recharge were calculated using environmental tritium.