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作 者 ：金建华,廖文波,王伯荪,彭少麟

期 刊 ：生态学报 2002年 22卷 3期 页码：425~432

关键词：第三纪；沉积环境；古植物群落；海南岛；多样性；

Keywords:paleodiversification, tertiary, environment, plant community, Hainan Island,

摘 要 ：海南岛第三纪沉积类型及古植物群落复杂多样。早第三纪主要为河湖相、湖泊相和湖沼相等陆相沉积 ,晚期发生海侵 ,开始出现海陆交互相沉积 ;古植物群落主要有 :温带山地针叶林和落叶阔叶林、亚热带常绿和落叶阔叶林 ,晚期开始出现红树林 ,总体属温暖湿润的亚热带气候。晚第三纪海侵加大 ,沉积类型为滨海相、滨海 -浅海相、浅海相及深水广海相等海相沉积 ,在滨海地区红树林面积大大增加 ,盆地中心平原地带发展为低地热带雨林 ,总体属炎热潮湿的热带气候 ,但在海南岛西部和西北部仍发育有山地雪松和云杉林。上新世时植被类型逐渐接近现今当地的面貌。深入研究本区第三纪古环境与古植物群落的变迁对海南岛现代生物多样性形成机制的研究具有重要意义。

Abstract:Based on a detailed analysis of the lithological characters,the Early Tertiary strata of basins in Hainan Island can be divided into river\|lake facies,lake facies,limnetic facies and continental\|oceanic facies.During the Late Tertiary,the strata of Hainan Island changed into the oceanic facies,such as the littoral facies,littoral\|shallow facies,shallow\|sea facies,and deep\|open sea facies.According to the fossil sporopollens characters,the Early Tertiary vegetation of Hainan Island were mainly the alpin...

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