库姆塔格沙漠东北缘浅层地下水补给来源

 依据库姆塔格沙漠东北缘地表水和地下水水文、水化学和同位素相关数据,分析探讨了沙漠东北缘地下水的主要补给来源。结果表明,水体与周边流域地表水并无直接联系,主要受到南部山区贫重同位素水体的补给,但补给过程缓慢,因此,对周边地区水资源的开发非常敏感。根据地势条件和水文地质条件,祁连山沿党河洪积扇到谷地冲湖积平原可能存在一条地下水补给路径,冰雪融水和降水渗透到地下,沿党河洪积扇最终补给到疏勒河谷地。

Phreatic Water Recharged Source on the Northeast of Kumtag Desert

Recharge sources of the phreatic and surface water in the Sule River Valley have been investigated with hydrological,geochemical and isotopic techniques.Stable isotope compositions of shallow groundwater and surface water in the valley evolve from a starting composition which is more depleted.Waters in the valley and surface water in adjacent areas appear unconnected based on chemical composition and radiocarbon activities.Hydrogeological evidence points toward the Qilian Mountain as a recharge zone,which i...