| 西藏拉萨地区5000a来古气候古环境变迁 |
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| 引用本文： | 陈陵康,陈林,张伟.西藏拉萨地区5000a来古气候古环境变迁[J].干旱区资源与环境,2011(5):89-97. |
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| 作者姓名： | 陈陵康 陈林 张伟 |
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| 作者单位： | 中国地质大学(武汉)地球科学学院;西藏生态环境地质研究所;广东省地质调查院; |
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| 基金项目： | 西藏拉萨-工布江达地区环境地质综合调查与评价(中国地质调查局水[2009]07-35)资助 |
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| 摘 要： | 根据西藏拉萨桑达第四系剖面的研究,采用植硅体、分子化石等气候待用指标,并配以TL测年,探讨了拉萨地区5000a来气候及环境变迁.结果表明:1)在5.889Ka.BP-2.3 Ka.BP,植硅体形态类型为齿形-平滑棒型、石屑型、网脊块状,反映的植被景观为森林-草原景观,气候温凉;C27+C29/C31+C33值>1,木本...
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| 关 键 词： | 西藏拉萨 古气候 古环境 植硅体 分子化石 |
Paleoclimate and paleoenvironment changes during the past 5000 years in the Lhasa Area,Tibet. |
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| CHEN Lingkang,CHEN Lin,ZHANG Wei.Paleoclimate and paleoenvironment changes during the past 5000 years in the Lhasa Area,Tibet.[J].Journal of Arid Land Resources and Environment,2011(5):89-97. |
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| Authors: | CHEN Lingkang CHEN Lin ZHANG Wei |
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| Institution: | CHEN Lingkang1,2,CHEN Lin1,ZHANG Wei3(1.Faculty of Earth Science,China University of Geosciences,WuHai 430074,P.R.China,2.Institute of Ecological Environment and Geological in Tibet,Lhasa 851400,3.Guangdong Institute of Gelogical Survey,Guangzhou 510080,P.R.China) |
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| Abstract: | According to the substitution index of climate and identifying age of the Quaternary section at Sangda village in Lhasa,Tibet.and through systematic analyzing of combination character of phytolith and molecular fossil,we discussed paleoclimate and paleoenvironment changing during the past 5000 years in the Lhasa Area.The conclusion indicated:firstly,during the 5.889Ka.BP-2.3Ka.BP,the phtolith morphologicial style were tooth model-smooth bar model,chip model,murus block,it was reflected that the vegetation w... |
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| Keywords: | Lhasa Area paleoclimate paleoenvironment Phytolith Molecular fossil |
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