| Isotopic Stratification and Its Implications in Groundwater of Northern China |
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| 作者姓名： | Chen Zongyu Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological Sciences Shijiazhuang College of Earth Sciences Jilin University Changchun Zhang Guanghui Ni Zhenlong Qi Jixiang Nan Yunju Institute of Hy |
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| 作者单位： | Chen Zongyu Institute of Hydrogeology and Environmental Geology，Chinese Academy of Geological Sciences，Shijiazhuang 050061; College of Earth Sciences，Jilin University，Changchun 130026Zhang Guanghui Ni Zhenlong Qi Jixiang Nan Yunju Institute of Hy |
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| 基金项目： | theNationalNaturalScienceFoundationofChina (No .498710 79) |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＭａｎｙｓｔｕｄｉｅｓｏｆｇｌｏｂａｌｃｈａｎｇｅｓｓｈｏｗｔｈａｔｔｈｅｈｙｄｒｏｌｏｇｉｃａｌｃｙｃｌｅｏｆａｃｏｎｔｉｎｅｎｔａｌｓｃａｌｅｃａｎｂｅｒｅｌａｔｅｄｔｏｃｌｉｍａｔｉｃｃｈａｎｇｅｓ(Ａｎｄｅｒｓｏｎｅｔａｌ.,2 0 0 1;ＫａｒｅｎａｎｄＤａｒａ,2 0 0 1;ＭｉｃｈａｅｌａｎｄＭｉｃｈａｅｌ,1999;Ｈｕｇｏｅｔａｌ.,1996 ;Ｌａｒｒｙｅｔａｌ.,1996 ) .Ｃｕｒ ｒｅｎｔｄｉｓｔｒｉｂｕｔｉｏｎｐａｔｔｅｒｎｓｏｆｄｅｕｔｅｒｉｕｍａｎｄｏｘｙｇｅｎ 18ｃｏｎｃｅｎ …
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Isotopic Stratification and Its Implications in Groundwater of Northern China |
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| Chen Zongyu Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang , College of Earth Sciences,Jilin University,Changchun Zhang Guanghui Ni Zhenlong Qi Jixiang Nan Yunju Institute of Hy.Isotopic Stratification and Its Implications in Groundwater of Northern China[J].Journal of China University of Geosciences,2001,12(3). |
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| Authors: | Chen Zongyu ZHANG Guanghui Ni Zhenlong QI Jixiang Nan Yunju |
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| Abstract: | The contents of D, 8O, 3H and 14C, distinctive in shallow and deep Quaternary aquifers beneath northern China, reflect differences in average paleoclimatic conditions between the Holocene and the last glacial period in Pleistocene. Groundwater in deep confined aquifer was recharged during the last glacial period. The depletions of δ(D) and δ(18O) of this water, 4× 10-3 -16× 10-3 and 1 × 10-3 -2 × 10-3 when compared with the shallow water recharged in Holocene, suggest that the annual mean temperature was lower in the last glacial period than that in the Holocene. The continental gradient of D and 18O fount in old groundwater is essentially similar to that in Holocene, suggesting that the atmospheric circulation did not undergo substantial changes over northern China for the past 30 000 years in spite of the changes in the temperature. Groundwater isotopic stratification indicates three different recharge mechanisms and the influence of modern hydrological circulation, which are very important for the understanding of the continental hydrological circulation and the sustainable development of groundwater resources.`` |
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| Keywords: | isotopes aquifers paleoclimate and paleohydrology recharge mechanism sustainable development northern China |
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