新疆尉犁县绿洲区微咸水水化学特征及可利用潜力分析

Chemical Characteristics and Utilization Potential of Brackish Water in Oasis Area of Yuli County,Xinjiang

为探明新疆尉犁县绿洲区微咸水水化学特征、成因及可利用潜力,促进非常规水资源利用与水资源优化配置,综合采用Piper三线图、描述性统计分析、Gibbs图、离子比值法、水均衡法等对研究区地下水进行分析计算。结果表明:研究区微咸水水化学类型主要为SO_(4)·Cl-Na、SO_(4)·Cl-Na·Ca、SO_(4)·Cl-Na·Mg型,蒸发浓缩作用是微咸水形成的主要因素,其次是岩石风化作用;微咸水分布面积3851.35 km^(2),占研究区总面积的56.18%,可利用量为19237万m^(3)/a,开利用潜力较大。

In order to explore the chemical characteristics,origin and utilization potential of brackish water in the oasis area of Yuli County,Xinjiang,and promote the utilization of unconventional water resources and rational allocation of water resources,Piper three-line analysis,descriptive statistical analysis,Gibbs map,ion ratio method,water balance and other methods were used to analyze and calculate the ground-water quality and water quantity.The results show that the chemical types of brackish water in this area are mainly SO_(4)·Cl-Na,SO_(4)·Cl-Na·Ca and SO_(4)·Cl-Na·Mg.Evaporation-concentration is the main factor of brackish water formation,followed by rock weathering.The brackish water distribution area covers 3851.35 km^(2),which accounts for 56.18%of the total study area.The available volume is estimated at 192.37 million m^(3) per year,indicating significant mining potential.