Analysis of dynamic characteristics of groundwater level in Dunhuang Basin
Taking the shallow groundwater in the plain area of Dunhuang Basin as the research object,the dynamic moni-toring curve of groundwater in 79 holes in the study area was analyzed.It is believed that under the influence of natural and hu-man factors,there are four dynamic types of underground diving in the study area:runoff type,runoff-mining type,mining type and evaporation type.The runoff groundwater is affected by the annual ecological discharge of Shuangta Reservoir and Dan-ghe Reservoir,The runoff-mining groundwater level is gradually increased by field infiltration and canal system infiltration re-charge,and a large amount of concentrated mining leads to groundwater level decline and local funnels,while mining groundw-ater level is greatly reduced by mechanical well mining and local funnels occur.Evaporative groundwater level decreases with the increase of temperature and evaporation.
groundwaterdynamic characteristicsDunhuang Basinshoal water
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