ASSESSMENT OF NATURAL GROUNDWATER RESOURCES AND HYDRODYNAMIC AND HYDROCHEMICAL REGIMES OF THE AKHANGARAN BASIN

This article examines changes in the groundwater regime of the Akhangaron basin, as well as patterns of formation and development of hydrodynamic and hydrochemical aspects under the influence of various factors. As part of the research, an analysis was conducted on the geological and hydrogeological conditions of the basin, including groundwater recharge sources and discharge areas, as well as the characteristics of groundwater occurrence and distribution. The assessment of natural resources was carried out using methods of hydrogeological zoning, water balance calculations, and analysis of long-term observations of groundwater level regimes. Special attention was given to studying the hydrodynamic parameters of aquifers, including hydraulic conductivity coefficients, specific yield, and groundwater flow directions. Hydrochemical analysis allowed for the determination of mineralization, ionic composition, and spatial-temporal variability of groundwater quality, as well as the identification of natural and anthropogenic impact factors. The main types of groundwater were classified according to their chemical composition, and their suitability for domestic drinking water and agricultural water supply was assessed. The obtained results can be used in the development of measures for the rational exploitation and protection of groundwater resources in the basin.本文探讨了阿汉加兰盆地（Akhangaron basin）的地下水动态（groundwater regime）变化，以及多因素影响下水动力（hydrodynamic）与水化学（hydrochemical）特征的形成与演化规律。 本研究首先对该盆地的地质与水文地质（hydrogeological）条件开展分析，涵盖地下水补给源（groundwater recharge sources）、排泄区（discharge areas），以及地下水赋存与分布特征。本次地下水资源量评估采用了水文地质分区（hydrogeological zoning）、水平衡计算（water balance calculations）及地下水位动态长期观测分析等方法。研究重点聚焦于含水层（aquifer）的水动力参数，包括导水系数（hydraulic conductivity coefficients）、给水度（specific yield）与地下水流向。 通过水化学分析，可确定地下水的矿化度（mineralization）、离子组成（ionic composition）与水质时空变异性（spatial-temporal variability），同时识别自然与人为（anthropogenic）影响因素。研究依据化学组成对地下水的主要类型进行了分类，并评估了其在生活饮用水（domestic drinking water）与农业供水（agricultural water supply）方面的适用性。 本研究所得成果可用于制定该盆地地下水资源合理开发利用与保护措施。