Biome variability in southernmost Africa since the last deglaciation recorded in marine sediments

doi:10.1016/j.quascirev.2024.108912

NIGPAS OpenIR

	Biome variability in southernmost Africa since the last deglaciation recorded in marine sediments
通讯作者	Zhao, Xueqin(xqzhao@shou.edu.cn)
	Zhao, Xueqin 1; Lu, Xiaodi 1; Meadows, Michael 2,3; Dupont, Lydie 4,6; Mao, Limi5 ; Xu, Yunping 1; Ge, Huangmin 1; Zabel, Matthias 4
	2024-11-01
发表期刊	QUATERNARY SCIENCE REVIEWS (IF:4.334[JCR-2017],5.054[5-Year])
ISSN	0277-3791
卷号	343 页码:12
摘要	From a climate perspective, the southern Cape of South Africa is a particularly dynamic region because it occupies the transition between warm-temperate and subtropical circulation systems. However, in terms of understanding the longer-term dynamics of these systems, palaeoenvironmental data, especially marine records from offshore the southern coast are limited. To better understand the history of climate in the region, and its associated vegetation impacts, we present here terrestrial proxies including palynological and charcoal data and marine proxies (non-pollen palynomorph data) for marine sediment core GeoB20628-1 retrieved from offshore the southern Cape coast. Applying a chronology based on radiocarbon dating, the sediments of the core allow a detailed reconstruction of biome and climate variations in southwestern South Africa since the last deglaciation, spanning the last 13,900 years. The record clearly indicates a shift from non-marine to marine influence due to sea level rise during the transition from the last deglaciation to the Holocene. The region was evidently dominated by two major biomes (fynbos and renosterveld) throughout the record, with apparent shifts in domination during different periods. The fynbos taxa, particularly Restionaceae, that dominate the pollen record correspond well with variations in the Southern Hemisphere winter latitudinal insolation gradient. The associated charcoal record reveals the ongoing prevalence of fire in the fynbos and renosterveld biomes throughout the sequence. During the last 1300 years, a marked shift is evident, represented by a decline in Restionaceae-rich fynbos elements together with an increase in Stoebe/Elytropappus-type-rich renosterveld elements. The associated occurrence of neophyte taxa (Pinus spp.) combined with increased evidence for fire suggests that late Holocene vegetation responded to the influence of both climate and anthropogenic activities on the landscape.
关键词	Biome Climate Human impact The last deglaciation South Africa
DOI	10.1016/j.quascirev.2024.108912
收录类别	SCI
语种	英语
关键词[WOS]	WESTERN CAPE PROVINCE ; SEA-LEVEL CHANGES ; SOUTH-AFRICA ; LATE-HOLOCENE ; CLIMATE VARIABILITY ; SPELEOTHEM RECORD ; HIGH-RESOLUTION ; PINNACLE POINT ; VEGETATION DYNAMICS ; MFABENI PEATLAND
资助项目	National Natural Science Foundation of China[42206048] ; German Federal Ministry of Edu-cation and Research (BMBF)[03G0840A ']
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001309673700001
项目资助者	National Natural Science Foundation of China ; German Federal Ministry of Edu-cation and Research (BMBF)
出版者	PERGAMON-ELSEVIER SCIENCE LTD
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44286
专题	中国科学院南京地质古生物研究所
通讯作者	Zhao, Xueqin
作者单位	1.Shanghai Ocean Univ, Coll Oceanog & Ecol Sci, Shanghai Frontiers Res Ctr Hadal Biosphere, Shanghai 201306, Peoples R China 2.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China 3.Univ Cape Town, Dept Environm & Geog Sci, ZA-7701 Cape Town, South Africa 4.Univ Bremen, Ctr Marine Environm Sci, MARUM, D-28359 Bremen, Germany 5.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 6.IJsselkade 21, Zutphen, Netherlands
推荐引用方式 GB/T 7714	Zhao, Xueqin,Lu, Xiaodi,Meadows, Michael,et al. Biome variability in southernmost Africa since the last deglaciation recorded in marine sediments[J]. QUATERNARY SCIENCE REVIEWS,2024,343:12.
APA	Zhao, Xueqin.,Lu, Xiaodi.,Meadows, Michael.,Dupont, Lydie.,Mao, Limi.,...&Zabel, Matthias.(2024).Biome variability in southernmost Africa since the last deglaciation recorded in marine sediments.QUATERNARY SCIENCE REVIEWS,343,12.
MLA	Zhao, Xueqin,et al."Biome variability in southernmost Africa since the last deglaciation recorded in marine sediments".QUATERNARY SCIENCE REVIEWS 343(2024):12.