Paleovegetation succession over the past 30 000 yr and human activities during the late Holocene in Chizhou city， Anhui Province

HUANG Kangyou; ZHOU Yijun; CHEN Cong; TANG Yongjie; CEN Caifeng

doi:10.13471/j.cnki.acta.snus.2021D034

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Paleovegetation succession over the past 30 000 yr and human activities during the late Holocene in Chizhou city， Anhui Province

Research articles | 更新时间：2023-11-01

- Paleovegetation succession over the past 30 000 yr and human activities during the late Holocene in Chizhou city， Anhui Province
- Acta Scientiarum Naturalium Universitatis Sunyatseni Vol. 61, Issue 1, Pages: 151-160(2022)
- 作者机构：
  
  1.中山大学地球科学与工程学院/广东省地球动力作用与地质灾害重点实验室，广东珠海 519082
  2.南方海洋科学与工程广东省实验室（珠海），广东珠海 519082
- 作者简介：
- 基金信息：
- DOI：10.13471/j.cnki.acta.snus.2021D034
  CLC： P52
- Published：25 January 2022，
  
  Published Online：14 July 2021，
  
  Received：10 May 2021，
  
  Accepted：13 May 2021
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黄康有,周怡君,陈聪等.安徽省池州地区距今3万年以来古植被演替过程及晚全新世人类活动的影响[J].中山大学学报(自然科学版),2022,61(01):151-160.

HUANG Kangyou,ZHOU Yijun,CHEN Cong,et al.Paleovegetation succession over the past 30 000 yr and human activities during the late Holocene in Chizhou city， Anhui Province[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2022,61(01):151-160.
黄康有,周怡君,陈聪等.安徽省池州地区距今3万年以来古植被演替过程及晚全新世人类活动的影响[J].中山大学学报(自然科学版),2022,61(01):151-160. DOI： 10.13471/j.cnki.acta.snus.2021D034.

HUANG Kangyou,ZHOU Yijun,CHEN Cong,et al.Paleovegetation succession over the past 30 000 yr and human activities during the late Holocene in Chizhou city， Anhui Province[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2022,61(01):151-160. DOI： 10.13471/j.cnki.acta.snus.2021D034.

摘要

通过对长江下游安庆池州市地区钻孔岩芯开展古环境变化研究，基于岩芯5个沉积物样品的AMS

C测年结果建立沉积深度-年龄框架，根据孢粉分析结果探讨研究区域MIS3晚期以来古植被演变过程，并分析了全新世晚期人类活动对植被的干扰信号。研究结果表明：1）在MIS3阶段晚期（~30 540~25 330 cal a BP），研究区域植被类型表现为常绿落叶阔叶混交林，优势种类以壳斗科常绿类型青冈属和松属植物为主，落叶栎属和栗/锥属植物相对较少，反映了当时气候为温暖湿润； 2）在MIS2阶段（25 330~9 640 cal a BP），研究区域植被以落叶阔叶林为主要特征，该阶段气候从末次盛冰期时期的寒冷干燥逐渐转变为温凉湿润；3）在早-中全新世阶段（9 640~5 180 cal a BP），森林植被开始繁盛，尤其是乔木类植物含量达到峰值，反映出当时气候温暖潮湿；4）在晚全新世阶段（5 180 cal a BP以来），禾本科植物花粉（

40 μm）剧增，可能与当时稻作农业规模增大有关；同时乔木类花粉锐减，反映了人类活动对自然植被干扰强度增加。

Abstract

Based on AMS

C dating results of five samples of drilling core GMD06， the sedimentary framework of the age-depth of Chizhou， Anhui Province， was established. The pollen analysis data reveal the vegetation succession history in this Yangtze River basin since the late MIS3. During the late MIS3 period （~30 540 - 25 330 cal a BP）， the vegetation type of the study area was evergreen deciduous broad-leaved mixed forest； the dominant species were

Cyclobalanopsis

and

Pinus

， while the

Quercus

-deciduous and

Castanea/Castanopsis

were relatively less； and the climate was warm-cool and humid. During the MIS2 period （25 330 - 9 640 cal a BP）， the vegetation was mainly characterized by deciduous broad-leaved forest； the climate gradually changed from cold and dry to cool and wet during the last glacial maximum. During the early and middle Holocene （9 640 - 5 180 cal a BP）， the vegetation began to flourish， particularly， the tree pollen reached the peak； the climate was warm and humid. During the late Holocene （~5 180 cal a BP）， the Poaceae （

40 μm） pollen increase significantly which probably indicates the increased rice agricultural activities； coupled with the sharp decreasing of tree pollen， it suggests the intensified disturbance of natural vegetation by human activities.

关键词

长江流域MIS3阶段孢粉分析古环境

Keywords

the Yangtze River basinMIS3pollen analysispaleoenvironment

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