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
黄康有(1979年生),男;研究方向:第四纪地质学;E-mail:hkangy@mail.sysu.edu.cn
纸质出版日期:2022-01-25,
网络出版日期:2021-07-14,
收稿日期:2021-05-10,
录用日期:2021-05-13
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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.
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
14
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。
Based on AMS
14
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.
长江流域MIS3阶段孢粉分析古环境
the Yangtze River basinMIS3pollen analysispaleoenvironment
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