摘要
西藏札达盆地托林剖面的孢粉分析显示,该地区在5.4～5.05MaBP时期,气候环境由温凉干旱转变为温暖稍湿,植被相应地经历了疏林草原植被—森林草原植被的演变过程;到了5.05～4.40MaBP时期,转变为温暖潮湿的气候,植被亦相应地经历了由森林草原—暖温带针阔叶混交林—亚热带针阔叶混交林的演变过程。总地来说,当时该地区的植被是乔木植物(松属)和草本植物(蒿属、藜科)占主导地位,气候总体表现为温暖湿润。
Palynological records of the Toling section in Zanda basin, Tibet, have revealed that at 5.4-5,05 Ma BP the climate changed from warm-cool and dry to warm and slightly wet and that accordingly the vegetation also went through an evolutionary process from the veld to sylvosteppe vegetations. At 5.05-4.40 Ma BP, the climate became warm and wet and the vegetation also underwent an evolutionary process from sylvosteppe→warm-temperate zone mixed coniferous and latifoliate forest→subtropical zone mixed coniferous and latifoliate forest. Generally the vegetation then was dominated by arbores （Pinus） and herbs （Chenopodiaceae and Artemisia）, and the paleoclimate was warm and wet.
出处
《地质通报》
CAS
CSCD
北大核心
2006年第12期1475-1480,共6页
Geological Bulletin of China
基金
中国地质调查局<青藏高原第三纪重点古湖泊环境演变序列>项目(编号:200313000066)
<青藏高原生态地质环境遥感调查与监测项目>(编号:200315100002)的阶段性成果
关键词
西藏
札达盆地
托林剖面
植被
孢粉分析
Tibet
Zanda basin
Toling section
vegetation
palynological records
