呼和浩特盆地地下水流系统变异机制及其资源效应
发布时间：2018-12-21 14:12
【摘要】：几十年的高强度开采致使呼和浩特盆地地下水流系统发生了很大变化。在对含水系统结构特征分析的基础上,结合地下水流场及水位动态特征,对地下水流系统演化模式进行了分析总结,基本可归纳为3个演化阶段,地下水人工开采及沟谷水利工程的修建是地下流系统变异的主要驱动因子。采用均衡法对现状条件下地下水均衡情况进行了定量计算,通过与历史时期均衡情况对比分析,发现在不同水流系统演化阶段,各含水层地下水补排量差异较大,从而导致地下水资源量发生变化,与历史时期相比,潜水含水层资源量明显减小,承压含水层资源量有所增加,但总资源量一定程度减小,地下流系统变异的资源效应明显。
[Abstract]:Decades of high-intensity mining have caused great changes in the groundwater flow system in the Hohhot Basin. Based on the analysis of the structural characteristics of the water-bearing system and the dynamic characteristics of the groundwater flow field and water level, the evolution model of the groundwater flow system is analyzed and summarized, which can be basically divided into three stages of evolution. The artificial exploitation of groundwater and the construction of gully water conservancy project are the main driving factors of the variation of groundwater downflow system. The equilibrium method is used to quantitatively calculate the groundwater equilibrium under the present condition. By comparing the equilibrium with the historical equilibrium, it is found that the groundwater recharge and discharge of each aquifer varies greatly in the evolution stages of different flow systems. As a result, the amount of groundwater resources changed. Compared with the historical period, the amount of groundwater aquifer resources decreased obviously, the amount of confined aquifer resources increased, but the total amount of resources decreased to a certain extent, and the resource effect of variation of groundwater flow system was obvious.
【作者单位】： 英国纽卡斯尔大学;中国地质科学院水文地质环境地质研究所;中国地质大学(北京);
【基金】：中国地质科学院基本科研业务费项目“越流系统数值模拟及递进式参数反演研究”(YYWF201626)
【分类号】：P641.2
[Abstract]:Decades of high-intensity mining have caused great changes in the groundwater flow system in the Hohhot Basin. Based on the analysis of the structural characteristics of the water-bearing system and the dynamic characteristics of the groundwater flow field and water level, the evolution model of the groundwater flow system is analyzed and summarized, which can be basically divided into three stages of evolution. The artificial exploitation of groundwater and the construction of gully water conservancy project are the main driving factors of the variation of groundwater downflow system. The equilibrium method is used to quantitatively calculate the groundwater equilibrium under the present condition. By comparing the equilibrium with the historical equilibrium, it is found that the groundwater recharge and discharge of each aquifer varies greatly in the evolution stages of different flow systems. As a result, the amount of groundwater resources changed. Compared with the historical period, the amount of groundwater aquifer resources decreased obviously, the amount of confined aquifer resources increased, but the total amount of resources decreased to a certain extent, and the resource effect of variation of groundwater flow system was obvious.
【作者单位】： 英国纽卡斯尔大学;中国地质科学院水文地质环境地质研究所;中国地质大学(北京);
【基金】：中国地质科学院基本科研业务费项目“越流系统数值模拟及递进式参数反演研究”(YYWF201626)
【分类号】：P641.2
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