中国亚热带山地泥炭记录的全新世古气候变化  

HOLOCENE CLIMATE CHANGES RECORDEDE IN SUBTROPICAL MOUNTAIN PEATLANDS OF CHINA

作　　者：曾瑶瑶 赵琳 饶志国 ZENG Yaoyao;ZHAO Lin;RAO Zhiguo(College of Geographic Science,Hunan Normal University,Changsha 410081,China;Hunan Provincial Key Laboratory for Eco-environmental Changes and Carbon Sequestration of the Dongting Lake Basin,Changsha 410081,China)

机构地区：[1]湖南师范大学地理科学学院,长沙410081 [2]洞庭湖流域生态环境变化与固碳增汇湖南省重点实验室,长沙410081

出　　处：《微体古生物学报(中英文)》2024年第4期357-369,共13页Acta Micropalaeontologica Sinica

基　　金：国家自然科学基金项目(批准号:42271168);湖南省科技创新计划(批准号:2024RC3156);湖南省教育厅科学研究重点项目(批准号:23A0052);湖南省普通高等学校科技创新团队支持计划;湖南省大学生研究性学习和创新性实验计划项目(批准号:S202410542031)共同资助。

摘　　要：全新世是地质历史中距今最近的时期,因其与人类活动密切相关,故而该时期气候演化过程备受关注。中国亚热带地区作为东部季风区前缘,是研究全新世气候变化和季风演化的热点地区。然而,该地区的全新世气候变化研究结论仍存在不一致性。本文选取中国亚热带山地泥炭区的10个泥炭点位、15条指标记录,经归一化处理,集成重建了亚热带全新世温度和降水序列,探讨亚热带地区泥炭记录的全新世气候演化信息。结果显示,早全新世至中全新世气候逐渐变暖湿,晚全新世气候变干冷。早中全新世气候变化主要受太阳辐射和高纬驱动影响,晚全新世气候变化更多受太阳辐射和低纬驱动影响。The Holocene epoch is the most recent period in geological history,which is closely related to human activities and makes its climatic evolution process of great interest.The subtropical region of China,located at the forefront of the East Asian monsoon area,is a hotspot for studying Holocene climate change and monsoon evolution.However,relevant studies about Holocene climate change in this region are still controversial.Thus,more reliable records from the subtropical region are essential if we are to gain a better understanding of the climate change of the subtropical region of China.In this study,we selected 10 peat sites and 15 climate records from the subtropical peatlands of China,which were normalized to reconstruct the temperature and precipitation sequences of the subtropical Holocene.The results suggest that the climate gradually became warmer and wetter from the early to middle Holocene,while cooler and drier in the late Holocene.Furthermore,this study also indicates that the climate changes from the early to mid-Holocene were mainly influenced by solar radiation and high-latitude drivers,while the late Holocene may have been controlled by solar radiation and low-latitude drivers.

关 键 词：古气候 亚热带 泥炭记录 全新世 

分 类 号：P534.632[天文地球—第四纪地质学] P532[天文地球—古生物学与地层学]