摘要
通过对四川红原日干乔泥炭剖面的孢粉研究,建立了4个孢粉组合带。自13.6ka以来,日干乔地区古气候经历了以下演化阶段:13.688～11.093ka以温湿气候为主,11.093～8.512ka气候较为干旱,2.74～5.39ka,8.512～5ka气候转暖,温和湿润,5ka至今,该地区气候环境最好,温暖湿润。孢粉组合特征显示该区在此阶段总体为温湿的草原环境,孢粉记录反应了红原县日干乔地区第四纪更新世经历了潮湿—干燥—潮湿的气候变化过程。
Through study on sporopollen in peat profile in Riganqiao region in Hongyuan in Sichuan province, four pollen assemblage zones have been set up. As showed by pollen assemblage characteristics, this area is wet plate environment during this period. According to sporopollen records, climate evolution in Hongyuan area has experienced a wet - dry - wet climate change process.
出处
《山东国土资源》
2012年第8期1-4,共4页
Shandong Land and Resources
基金
中国地质调查局国土资源大调查1:25万若尔盖县幅(I48C003001)
红原县幅(I48C004001)
炉霍县幅(I47C001004)
马尔康县幅(I48C001001)区调修测项目(编号:1212010510304)
