塔里木河干流下游地下水特征分析

本文基于 90年代末塔里木河干流下游地下水埋深和水化学资料 ,系统分析了塔河下游在断流 2 0多年后地下水水化学特征和地下水埋深情况 ,对地下水的矿化度、离子含量和化学类型的分析结果表明 ,水化学特征的水平和垂直地带性分布规律 ,水化学成分变化的区间性 ;高矿化地下水的普遍性等 ;地下水埋深在断流 2 0多年后河道附近地下水水位为 6.5米 -1 0米。地下水的盐分和埋深分布特点和规律表明 ,在解决塔河下游生态问题时 ,除解决下游来水问题还必须考虑到下游不同地段的水化学特征。

analysis of the Groundwater Characteristics at the Lower Reaches of Talim River

Based on the depth and water chemistry data of the ground water at lower reaches of the Talim River in 90',the groundwater depth and water chemistry were analyzed systemically after water flow has been interrupted for more than 20 years.The mineralization?ion content and the chemical types were analyzed.The results showed that the characteristics of the groundwater chemistry has the horizontal and vertical distributation;the chamical components changed gradually from the water source;the groundwater universally mineralized.The groundwater depth near the rivercourse was between 6.5~10m after 20 years of no water in the watercourse.According to the distribution rule?characteristics of the salinity and depth of the groundwater,the groundwater characteristics especially the salinity must be taken into account when soluing the problem of water source of lower reaches.