渭北东部奥陶系岩溶地下水环境同位素特征分析

本文通过对渭北东部岩溶地下水环境同位素组成特征的研究,分析了大气降水、地表水、地下水三者之间的转化关系,并对研究区岩溶地下水的形成进行了初步探讨,认为大气降水是研究区岩溶地下水的补给源,地表水与地下水之间存在水力联系,地表水对地下水的补给占补给水源的74.3%.西部岩溶裸露区为岩溶水的直接补给区,其周边浅埋区为岩溶水的间接补给区,东南部的岩溶中-深埋区为岩溶水的径流排泄区.

The environment isotopic character of Ordovician cast water in east of wei north

This paper analysis the relationship among the precipitation and surface water and ground water through researching the isotope character of Ordovician cast water in wei north.It also discuss the form of cast water in the researching area.It point out that precipitation is the main origin of cast water in the area,and there are some water relationship between surface water and ground water,in the total recharge of groundwater,it takes about 74.3% that from surface water.It thinks that the west where cast is exposed is the direct recharging area and the the circumjacent where water level is shallow is the indirect recharging area and the southeast where water level is relatively deep is the discharging area.