Vegetation and Climate Changes around Celebes Sea during Holocene
Bian Yeping
Li Jiabiao
Jian Zhimin
Chu Fengyou
Chu Zhihui
Kuhnt Wolfgang
Ye Liming
Abstract：The environment and climate information during the Holocene is indispensable data for the global climate modeling and forecasting.Scenarios of regional vegetation and climate changes around the Celebes Sea during the Holocene are explored based on the alynological and oxygen isotope records of core MD98-21 78 (3.6200°N,1 18.7000°E;1 984 m water depth)from the northwest Celebes Sea in this study.Sea-level changes are discussed since the marine pollen record of core MD98-21 78 is considered as an indicator.The sharp decline in concentration of all pollen groups during the Early Holocene,~10-7 ka BP, indicates a sea-level rise.All pollen groups at 7-4 ka BP suggest sustaining of a high sea-level.The marine pollen record after 4 ka BP shows a slight fall of sea-level.The significant increase in pollen percentage of the tropical montane forest during the Middle Holocene,5-4 ka BP,suggests a much cold condition along the Celebes Sea at the time.It is suggested that precipita-tion along the Celebes Sea has been affected by variations of land-ocean distribution and solar activities.It is implied by fluctua-tion in fern spores record that precipitation was at a high level during the Early Holocene,but lowered after the Middle Hol-ocene,which is in a similar pattern as indicated by the Indonesian stalagmite records.
Keywords：HoloceneCelebes Seapollen analysissea-level changetemperatureprecipitationclimate changevegetation
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：11( 870-880 )