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神农架大九湖15.753kaB.P.以来的孢粉记录和环境演变
Authors
刘克新
卢雪峰
+6 more
唐领余
张文卿
朱诚
郑朝贵
陈惠中
马春梅
Publication date
1 January 2006
Publisher
Abstract
根据对大九湖297cm厚的泥炭地层10个AMS~(14)C年龄的测定以及148块孢粉样品的分析,发现每块样品的孢粉(浓度)含量都很高,植物种类繁多,分属于137(科)属,可划分为6个孢粉组合带,植被类型演替大体为含少量常绿树种的针阔叶混交林—含常绿阔叶树种的落叶阔叶林—常绿落叶阔叶林—含常绿阔叶树种的落叶阔叶林—含少量常绿树种的针阔叶混交林。孢粉带Ⅰ(15.753~11.280kaB.P.)记录了该区域晚冰期及其向全新世过渡时期冷暖波动频繁的气候条件,其中亚带Ⅰ-1(15.753~15.549kaB.P.),Ⅰ-3(14.936~14.505kaB.P.)和Ⅰ-5(12.655~11.280k...中文核心期刊要目总览(PKU)中国科学引文数据库(CSCD)005814-82
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