浙江南部望东垟孢粉记录的中晚全新世植被演化历史与气候变化  

MIDDLE-LATE HOLOCENE VEGETATION HISTORY AND CLIMATE CHANGE IMPLIED BY POLLENS FROM WANGDONGYANG,SOUTHERN ZHEJIANG PROVINCE,EAST CHINA

作　　者：温振明 叶玮[1] 马春梅[2,3] 章云霞 胡忠行 WEN Zhenmingl;YE Wei;MA Chunmei;ZHANG Yunxia;HU Zhongxing(School of Geography and Environmental Science,Zhejiang Normal University,Jinhua 321004;School of Geography and C）eeanogra phy,Nanjing University,Nanj ing 210023;Jiangsu Collaborative Innovation Center for Climate Change,Nanjing 210023;Nanjing Institute of Geography and Limnology,Chinese Academy o f Sciences,Nanjing 210008)

机构地区：[1]浙江师范大学地理与环境科学学院,金华321004 [2]南京大学地理与海洋科学学院,南京210023 [3]江苏省气候变化协同创新中心,南京210046 [4]中国科学院南京地理与湖泊研究所,南京210008

出　　处：《微体古生物学报》2018年第3期260-272,共13页Acta Micropalaeontologica Sinica

基　　金：国家自然科学基金项目(41371206)和国家自然科学基金面上项目(41671196)联合资助~~

摘　　要：本研究通过浙江南部地区高山湿地望东垟的61个孢粉样品分析结果,结合四个AMS14C年代数据构建的年代框架,初步揭示了该区域中晚全新世以来的植被演变历史与气候变化。研究表明,该区域7.4-2.1ka B.P.气候暖湿,温暖湿润的气候塑造了当时常绿阔叶针叶混交林的地带性植被,森林覆盖率高,并持续了五千多年。2.1-1.8ka B.P.为该区域气候由暖转型到冷的过渡阶段,草本植物扩张明显。1.8ka B.P.至现今,该区域气候凉偏湿,地带性植被以常绿针叶林、落叶阔叶林、草本及蕨类植物为主。显然,自7.4ka B.P.以来,该区域植被覆盖度与生态环境的变化以气候变化为主导。但是,有证据表明1.1ka B.P.以来该区域明显有了人类活动的记录,气候变化与人类活动共同塑造了该区域的植被与生态环境。This study analyzed 61 core samples collected from Wangdongyang,the alpine wetlands of southern Zhejiang Province in East China,and built the age framework based on AMS14C data.The paper interprets the vegetation succession history and the climate change in the region during the middle-late Holocene.The results show three distinct periods of vegetation history and climate change.From 7.4 to 2.1 ka B.P.,the regional climate was warm and wet,which created the zonal vegetation of evergreen broad-leaf and coniferous forests with high forest coverage rate.2.1-1.8 ka B.P.was a transitional period from warm to cool climates,with herbs spreading obviously.From 1.8 ka B.P.to modern times,the regional climate was cool and relatively wet,where the zonal vegetation was dominated by evergreen coniferous forests,deciduous broad-leaf forests,herbaceous plants and ferns.Obviously,since 7.4 kaB.P.,the change of vegetation coverage and ecological environment in the region has been governed by climate change.However,there is evidence that a clear record of human activity has been existed in the region since 1.1 ka B.P.,which indicates that climate change and human activities shaped the vegetation and ecological environment in the region together.

关 键 词：孢粉 中晚全新世 气候变化 望东垟 浙江南部 

分 类 号：Q914.1[天文地球—古生物学与地层学]