| 大同盆地全新世以来孢粉特征和环境演变 |
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| 引用本文： | 范淑贤,刘海坤,周建柱,童国榜,毕志伟.大同盆地全新世以来孢粉特征和环境演变[J].地球学报,2007,28(6):535-540. |
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| 作者姓名： | 范淑贤 刘海坤 周建柱 童国榜 毕志伟 |
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| 作者单位： | 中国地质科学院水文地质环境地质研究所，河北石家庄050061;中国地质科学院水文地质环境地质研究所，河北石家庄050061;河北省国土资源厅矿产资源储量评审中心,河北石家庄050031;中国地质科学院水文地质环境地质研究所，河北石家庄050061;中国地质科学院水文地质环境地质研究所，河北石家庄050061 |
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| 基金项目： | 国家自然科学基金项目“黄土高原东北部中更新世以来气候变化与全球变化对比”(编号:49171064) |
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| 摘 要： | 通过对大同盆地东水头剖面孢粉植物群分析研究,揭示了全新世气候环境的演变特征.结果表明:全新世以来草本植物始终占据优势地位,落叶阔叶植物和针叶植物虽然有时在木本植物中出现高峰,但仍然未形成稳定的森林景观.该区植被类型是以疏林草原和草原植被为主,气候温暖偏干.全新世大暖期在8.5～4 kaB.P.间,气候不稳定,气候波动明显,与黄土高原地区具有良好的可比性.
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| 关 键 词： | 大同盆地 全新世 孢粉 植物群 |
Spore and Pollen Characteristics and Environment Evolution in Datong Basin Since Holocene |
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| FAN Shu-xian,LIU Hai-kun,ZHOU Jian-zhu,TONG Guo-bang and BI Zhi-wei.Spore and Pollen Characteristics and Environment Evolution in Datong Basin Since Holocene[J].Acta Geoscientia Sinica,2007,28(6):535-540. |
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| Authors: | FAN Shu-xian LIU Hai-kun ZHOU Jian-zhu TONG Guo-bang and BI Zhi-wei |
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| Institution: | Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, Hebei 050061;Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, Hebei 050061;Centre of Mineral Reserves Examination and appraisal, Hebei Bureau of Land and Resources, Hebei 050031;Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, Hebei 050061;Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, Hebei 050061 |
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| Abstract: | Based on a study of the spore-pollen flora from the Dongshuitou section of Datong basin, the authors revealed evolutionary characteristics of the climatic environment in Holocene. The results indicate that the herb has been dominant all the time since Holocene. Although the deciduous and broad-leaf plants and the coniferous plants sometimes possessed important positions in the woody plants, they have not yet formed the stable forest landscape. The vegetation types in the study area are dominated by veld and grassland plants, suggesting a warm and dry climate. The megathermal period of the Holocene lasted from 8.5 kaB.P. to 4 kaB.P. when the climate was unstable, which has good comparability with that of the Loess Plateau. |
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| Keywords: | Datong basin Holocene spore and pollen plant community |
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