包气带剖面中古水文—气候信息的初步研究 |
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关键词:unsaturated zone North China Plain paleorecharge paleoclimate chloride mass balance technique |
基金项目:国家自然科学基金(批准号49871079),原地质矿产部环境地质开放研究实验室(K96004) |
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摘要: |
A Tentative Discussion on Paleohydrological and Paleoclimatical Information from Unsaturated Zone Profile |
The unsaturated zone, as a sensitive zone relating to various processes at the surface of the earth, has a unique recording function and hence serves as potential archives of the past hydrological or climatic changes. From two unsaturated zone profiles in Shijiazhuang of North China Plain, the authors revealed the implications of paleohydrology and paleoclimate by analyzing the chloride profiles and estimating the recharge rate with chloride mass balance method. Meanwhile, the recharge history of this area was reconstructed. The results suggest that there seem to have had three dry/wet hydrological cycles over the last 300 years. Furthermore, the changes of recharge rate have also reflected these hydrological fluctuations. |
CHEN Zhong-yu,BI Er-ping,NIE Zhen-long,YE Hao,NAN Yun-ju.2001.A Tentative Discussion on Paleohydrological and Paleoclimatical Information from Unsaturated Zone Profile[J].Acta Geoscientica Sinica,22(4):335-339. |
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