The Sanshui Transformation Relation Research Of Lightning River Based On Environmental Isotope Precipitation Groundwater And Surface Water

With the rapid development of global climate changes,resulting in serious damage to the ecological environment,life,a variety of water problems more and more serious.According to local conditions to put forward the comprehensive protection of groundwater countermeasures and measures,and ultimately to achieve the blue flag,water,natural and harmonious development,Based on the study of the lightning river basin in Zhenglan Banner,Based on the determination of hydrogen and oxygen isotopes in groundwater,surface water and atmospheric precipitation,.From the perspective of time,space and climate,the relationship between "Sanshui" is analyzed,and the relationship between supply and supply of Sanshui is calculated by three-way source linear proportional mixing.On the basis of comprehensive analysis and discussion,We can conclude that:(1)HydrBy using the theory of hydrogen and oxygen stable isotope tracer respectively the atmosphere precipitation,surface water and groundwater,ogen and oxygen isotope distribution corresponding to the water body and supply relationship.Compared to the average of the deuterium surplus for four seasons.The deuterium surplus value of winter is numerically greater than that of spring,summer and autumn.And with the change of ambient temperature and rainfall,the value of deuterium surplus decreases first and then increases.The maximum amount of precipitation when the surplus value of the smallest.(2)Combined with four years of temperature and rainfall,the ?D and ?180 contents of atmospheric precipitation were analyzed and studied.The results show that the ?D and ?18O contents of precipitation in the June and July precipitation are higher than those with high temperature and rainfall.The content of ?D and ?18O in the precipitation is increasing with the increase of the temperature increasing.(3)The relationship between groundwater and surface water is studied separately:the surface water is closer to the local precipitation line than the groundwater point,and this can explain the large amount of groundwater for groundwater point,and this can explain the large amount of groundwater for the precipitation.After receiving the precipitation of groundwater for a period of time,the ?D and ?18O contents in the groundwater slowly approached the?D and ?18O contents in the local precipitation.(4)Basing on calculating by the three components mix proportion,The results show that from the spring to the autumn in the same section of the precipitation,the proportion of upstream surface water supply increased first and then decreased,the proportion of groundwater recharge decreased first and then increased.