| 湖北黄岗晚更新世孢粉动态组合的统计分析及古气候性质 |
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| 引用本文： | 田明中,曹伯勋.湖北黄岗晚更新世孢粉动态组合的统计分析及古气候性质[J].地球科学,1990,15(5):505-513. |
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| 作者姓名： | 田明中 曹伯勋 |
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| 作者单位： | 中国地质大学地质系
(田明中)，中国地质大学地质系(曹伯勋) |
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| 摘 要： |
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| 关 键 词： | 晚更新世 孢粉 组合 聚类分析 |
THE STATISTICAL ANALYSIS OF SPORO-POLLEN ASSOCIA-TION AND PALAEOCLIMATE NATURE OF LATE PLEISTOCENE IN HUANGGANG, HUBEI |
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| Tian Mingzhong Cao Boxun.THE STATISTICAL ANALYSIS OF SPORO-POLLEN ASSOCIA-TION AND PALAEOCLIMATE NATURE OF LATE PLEISTOCENE IN HUANGGANG, HUBEI[J].Earth Science-Journal of China University of Geosciences,1990,15(5):505-513. |
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| Authors: | Tian Mingzhong Cao Boxun |
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| Abstract: | There isn't information about sporo-pollen until now in the Middle Yangtze River area.The authors have made a systematic sporo-pollen analysis in sediments of Late Pleistocene in Longwangshan of Huanggang, Hubei. The some variables representing marks of environments were processed by the cluster analysis. The eight associations from the bottom up to the top are as follows: 1. Quercus-Ul-mus; 2. Pinus-Ephedra-Myrica-; 3. UIrnus-Gramineae; 4. Qaercus-Cupressaceae; 5. Quercus-Compositae; 6. Quercus-UImus; 7. Pinas-Taxodiaceae-Compositae-Polypodiaceae; 8. Quercas-Salix-Cupressaceae. The rules of sporo-pollen associ-ations were tested by the similarity coefficient. From the above analysis is drawn a conclusion that the cos0 values of the similar vegetations of the above and be-low of the middle bed range from 0.92 to 0.99, which has revealed the rule of changes in Quaternary sporo-pollen association, and indicated that the climate changed from warm to cool in paleoclimate in Late Pleistocene in this area instead of a complete cool or warm cycle. |
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| Keywords: | Late Pleistocene sporo-pollen association cluster analysis simi-larity coefficient cool and warm cycle of climate Hebei Province |
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