| 云南上新世杜鹃属和松属化石木研究及其古气候意义 |
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| 引用本文： | 扆铁梅,李承森,姜笑梅,王宇飞.云南上新世杜鹃属和松属化石木研究及其古气候意义[J].古地理学报,2002,4(4):90-98. |
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| 作者姓名： | 扆铁梅 李承森 姜笑梅 王宇飞 |
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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;3.中国林业科学研究院，北京 100091 |
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| 基金项目： | 中国科学院知识创新重大项目 (KZC1 1 0 0 1 )，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项目 (SKLLQG0 0 1 7)，国家自然科学基金项目 (3 0 0 70 0 5 6)的资助 |
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| 摘 要： | 研究了云南西部龙陵县上新世的化石木。鉴定出两种木材类型。杜鹃花科杜鹃属的似腋花杜鹃Rhododendron cf. racemosum Franchet，其主要木材特征有散孔材，生长轮略明显，导管具多角形轮廓，螺纹加厚出现在整个导管壁上，梯状穿孔板，射线异形II型。松科华山松Pinus armandii Franchet的主要特征有交叉场纹孔窗格状，具正常轴向和纵向树脂道，且泌脂细胞壁薄，射线管胞内壁平滑或具稀疏的微锯齿。两种类型的化石木在我国均属首次报道。根据化石木结构和现代相应树种和植被的生境范围，当时植物生长于亚热带温凉湿润的山地环境，其海拔大约在1800米左右。
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| 关 键 词： | 杜鹃属 松属 化石木 华山松 上新世 古气候 云南 |
| 文章编号： | 1671-1505(2002)04-0090-07 |
| 修稿时间： | 2002年1月16日 |
PLIOCENE RHODODENDRON AND PINUS FOSSIL WOODS OF YUNNAN PROVINCE AND PALAEOCLIMATE |
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| Yi Tiemei , Li Chengsen Jiang Xiaomei Wang Yufei Institute of Botany,Chinese Academy of Sciences,Beijing State Key Laboratory of Loess and Quaternary Geology.PLIOCENE RHODODENDRON AND PINUS FOSSIL WOODS OF YUNNAN PROVINCE AND PALAEOCLIMATE[J].Journal of Palaeogeography,2002,4(4):90-98. |
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| Authors: | Yi Tiemei Li Chengsen Jiang Xiaomei Wang Yufei Institute of Botany Chinese Academy of Sciences Beijing State Key Laboratory of Loess and Quaternary Geology |
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| Institution: | Yi Tiemei Li Chengsen Jiang Xiaomei Wang Yufei ;1.Institute of Botany, Chinese Academy of Sciences, Beijing 100093;2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, ;
Chinese Academy of Sciences, Xi’an 710075;3.Institute of wood Industry, the Chinese Academy of Forestry, Beijing 100091 |
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| Abstract: | Fossil woods collected from Pliocene sediments in the western Yunnan province are studied. Two types of wood are identified. One is Rhododendron cf. racemosum Franchet belonging to Ericaceae. Its key characters include wood diffuse porous, growth rings indistinct, vessel outline angular, perforation plates of vessel scalariform, helical thickenings throughout body of vessel element and ray heterogeneous type II. The other is Pinus armandii Franchet belonging to Pinaceae. Its key characters include cross fields pitting window like, normal axial and horizontal resin canals with thin epithelial cells present. Both fossil woods are firstly reported in China. Based on anatomical features and ecological condition of extant taxa and vegetation distribution, growth environment of fossil woods is subtropical humid upland climate at an altitude of 1 800 m or so. |
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| Keywords: | fossil woods Pinus armandii Franchet Rhododendron cf racemosum Franchet Pliocene Palaeoclimate Yunnan Province |
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