Heterogeneous occurrence of evergreen broad-leaved forests in East Asia:Evidence from plant fossils  

作　　者：Jiagang Zhao Shufeng Li Jian Huang Wenna Ding Mengxiao Wu Tao Su Alexander Farnsworth Paul J.Valdes Linlin Chen Yaowu Xing Zhekun Zhou 

机构地区：[1]CAS Key Laboratory of Tropical Forest Ecology,Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Mengla 666303,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Swiss Federal Institute for Forest,Snow and Landscape Research WSL,8903 Birmensdorf,Switzerland [4]Senckenberg Natural History Collections Dresden,Koonigsbrücker Landstraße 159,01109 Dresden,Germany [5]State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation&Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China [6]School of Geographical Sciences,University of Bristol,Bristol BS81SS,UK [7]State Key Laboratory of Tibetan Plateau Earth System,Environment and Resources(TPESER),Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101,China

出　　处：《Plant Diversity》2025年第1期1-12,共12页植物多样性(英文版)

基　　金：supported by National Key R&D Program of China(No.2022YFF0800800);National Science Fund for Distinguished Young Scholars(No.32225005);National Natural Science Foundation of China(NSFC)(Nos.42072024,42320104005,42372033);the Young and Middle-aged Academic and Technical Leaders of Yunnan(No.202305AC160051);Basic Research Project of Yunnan Province(No.202401AT070222);the 14th Five-Year Plan of the Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences(Nos.XTBG-1450101,E3ZKFF7B).

摘　　要：Evergreen broad-leaved forests(EBLFs) are widely distributed in East Asia and play a vital role in ecosystem stability. The occurrence of these forests in East Asia has been a subject of debate across various disciplines. In this study, we explored the occurrence of East Asian EBLFs from a paleobotanical perspective. By collecting plant fossils from four regions in East Asia, we have established the evolutionary history of EBLFs. Through floral similarity analysis and paleoclimatic reconstruction, we have revealed a diverse spatio-temporal pattern for the occurrence of EBLFs in East Asia. The earliest occurrence of EBLFs in southern China can be traced back to the middle Eocene, followed by southwestern China during the late Eocene-early Oligocene. Subsequently, EBLFs emerged in Japan during the early Oligocene and eventually appeared in central-eastern China around the Miocene. Paleoclimate simulation results suggest that the precipitation of wettest quarter(PWet Q, mm) exceeding 600 mm is crucial for the occurrence of EBLFs. Furthermore, the heterogeneous occurrence of EBLFs in East Asia is closely associated with the evolution of the Asian Monsoon. This study provides new insights into the occurrence of EBLFs in East Asia.

关 键 词：Evergreen broad-leaved forests(EBLFs) Plant fossils East Asia PALEOCLIMATE PALEOVEGETATION Asian monsoon 

分 类 号：Q914.2[天文地球—古生物学与地层学]