| 云南西部羊邑和龙陵地区晚上新世植被和古气候 |
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| 引用本文： | 徐景先,王宇飞,杜乃秋.云南西部羊邑和龙陵地区晚上新世植被和古气候[J].古地理学报,2003,5(2):217-223. |
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| 作者姓名： | 徐景先 王宇飞 杜乃秋 |
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| 作者单位： | 1.中国科学院植物研究所 北京 100093 ;2.中国科学院地球环境研究所黄土与第四纪地质国家重点实验室 陕西西安 710075 |
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| 基金项目： | 中国科学院知识创新工程重大项目“西部生态环境演变规律与水土资源可持续利用研究” (KZCX 1 -10 - 0 1)，中国科学院知识创新工程重要方向项目“我国自然环境分异耦合过程与发展趋势” (KZCX2 - SW -118)，中国科学院地球环境研究所黄土与第四纪地质国家重点实验室 |
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| 摘 要： | 云南西部羊邑和龙陵地区晚上新世孢粉组合均以被子植物占优势，蕨类和裸子植物次之，藻类类群少。龙陵孢粉组合比羊邑孢粉组合含有更丰富的亚热带被子植物成分；裸子植物类群相对较少；蕨类类群较多，但孢子含量低。与研究地区现生植被对比研究的结果显示羊邑孢粉组合的大部分类群来自常绿针阔叶混交林，现在分布于羊邑地区海拔2800-3100m的地带，其余部分来自海拔3200m以上的云冷杉林；而龙陵孢粉组合的大部分类群来自山地湿润常绿阔叶林，分布于今日龙陵地区海拔1600-2500m的地带，其余部分来自海拔2300-2900m的常绿针阔叶混交林。这些云南西部晚上新世植被反映了湿润的亚热带山地立体气候。
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| 关 键 词： | 云南 龙陵地区 羊邑地区 晚上新世 古气候 孢粉组合 植被 |
| 文章编号： | 1671-1505(2003)02-0217-07 |
| 修稿时间： | 2002年2月1日 |
LATE PLIOCENE VEGETATION AND PALAEOCLIMATE OF YANGYI AND LONGLING OF WESTERN YUNNAN PROVINCE |
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| Xu Jingxian , Wang Yufei Du Naiqiu Institute of Botany,Chinese Academy of Sciences,Beijing State Key Laboratory of Loess and Quaternary Geology.LATE PLIOCENE VEGETATION AND PALAEOCLIMATE OF YANGYI AND LONGLING OF WESTERN YUNNAN PROVINCE[J].Journal of Palaeogeography,2003,5(2):217-223. |
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| Authors: | Xu Jingxian Wang Yufei Du Naiqiu Institute of Botany Chinese Academy of Sciences Beijing State Key Laboratory of Loess and Quaternary Geology |
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| Institution: | 1.Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing 100093;2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, Shanxi |
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| Abstract: | Late Pliocene palynofloras of both Yangyi and Longling are dominated by angiosperms, along with a moderate number of ferns and gymnosperms, and a few algae. Compared with Yangyi playnoflora, Longling palynoflora contains more abundant subtropical elements of angiosperms, more ferns and less gymnosperms. Based on comparison with the vertical zones of modern vegetations, most elements of Longling palynoflora derived from the montane humid evergreen broad-leaved forest at elevation of 1600—2500m, with less contributions of the evergreen coniferous and broad-leaved mixed forest from 2300 to 2900m, whereas most of Yangyi palynoflora derived from the evergreen coniferous and broad-leaved mixed forest at elevation of 2800—3100m, with less contributions of evergreen coniferous forest above 3200m. Both Late Pliocene vegetations reflect a mountain subtropical climate with humidity. |
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| Keywords: | Late Pliocene vegetation palaeoclimate Yunnan Province |
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