气候变化领域集成服务门户(CCPortal): Multi-proxy evidence of late-Holocene paleoenvironmental change at Princessvlei; South Africa: The effects of fire; herbivores; and humans

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DOI	10.1016/j.quascirev.2019.105896
	Multi-proxy evidence of late-Holocene paleoenvironmental change at Princessvlei; South Africa: The effects of fire; herbivores; and humans
	Cordova C.E.; Kirsten K.L.; Scott L.; Meadows M.; Lücke A.
发表日期	2019
ISSN	0277-3791
卷号	221
英文摘要	A multi-proxy approach conducted on a sediment core from a small lake in the Cape Flats (Princessvlei, South Africa), supported by five AMS dates, reveals the paleoenvironments over the last 3900 years. Despite some gaps in the records, phytoliths, diatoms, δ18Odiatom, pollen, coprophilous fungus spores, microscopic charred particles (micro-charcoal), and burnt-grass phytoliths, indicate vegetation disturbances caused by climatic changes, anthropogenic influences, fire, and herbivore activity. Pollen spectra indicates a moist period (3600-2600 cal yr BP), which co-occurs with an increase in fires, possibly due to greater biomass fuel loads coupled with the moderate presence of large herbivores. Subsequently, a dry period (2600-1900 cal yr BP) saw a rapid increase of large herbivores probably congregating around the lake, a contention supported also by the occurrence of nutrient-rich waters. This dry period saw reduced fires and a decline of C3 grasses in favor of C4 grasses. The arrival of herders in the Cape after 2000 cal yr BP is not immediately apparent in the multiple records, except for minor vegetation changes and regional fires c. 1200–1400 cal yr BP. However, a more consistent presence of livestock in the immediate area of Princessvlei occurs only after c. 600 cal yr BP, when peak frequencies of coprophilous spores coincide with changes in vegetation composition and occurrence of more eutrophic waters in the lake. The introduction of exotic flora, fire suppression, and a reduction of herding activities, characterizes the period of European settlement (c. 300 BP to present). © 2019 Elsevier Ltd
语种	英语
scopus关键词	Agriculture; Animals; Charcoal; Drought; Lakes; Vegetation; Anthropogenic influence; Climatic changes; Multi-proxy evidences; Nutrient-rich water; Paleoenvironmental change; Paleoenvironments; Vegetation change; Vegetation composition; Fires; accelerator mass spectrometry; anthropogenic effect; C3 plant; C4 plant; climate variation; diatom; environmental change; herbivory; Holocene; oxygen isotope; paleoenvironment; phytolith; pollen; proxy climate record; sediment core; vegetation cover; Cape Flats; South Africa; Western Cape; Bacillariophyta; Fungi; Poaceae
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151769
作者单位	Department of Geography, Oklahoma State University, Stillwater, OK 74078, United States; Laboratory of Archaeometry, Kazan Federal University, Kazan, Tatarstan, Russian Federation; Department of Environmental and Geographical Science, University of Cape Town, South Lane, Upper Campus, Rondebosch, 7701, South Africa; Department of Plant Sciences, University of the Free State, Bloemfontein, South Africa; Department of Geographical Sciences, East China Normal University, Shanghai, China; Institute of Bio- and Geosciences, Agrosphere Institute (IBG-3), Forschungszentrum Jülich GmbH, Jülich, 52425, Germany
推荐引用方式 GB/T 7714	Cordova C.E.,Kirsten K.L.,Scott L.,et al. Multi-proxy evidence of late-Holocene paleoenvironmental change at Princessvlei; South Africa: The effects of fire; herbivores; and humans[J],2019,221.
APA	Cordova C.E.,Kirsten K.L.,Scott L.,Meadows M.,&Lücke A..(2019).Multi-proxy evidence of late-Holocene paleoenvironmental change at Princessvlei; South Africa: The effects of fire; herbivores; and humans.Quaternary Science Reviews,221.
MLA	Cordova C.E.,et al."Multi-proxy evidence of late-Holocene paleoenvironmental change at Princessvlei; South Africa: The effects of fire; herbivores; and humans".Quaternary Science Reviews 221(2019).