干旱区生态环境知识资源中心(Arid): Paleoclimate implication on the Lake Fonjak level changes (Adamawa Plateau, Central Cameroon) during the last 13,500 cal yr BP

Arid

DOI	10.1016/j.jafrearsci.2021.104286
	Paleoclimate implication on the Lake Fonjak level changes (Adamawa Plateau, Central Cameroon) during the last 13,500 cal yr BP
	N'nanga, Alexandrine; Nguetsop, Victor Francois; Tematio, Paul; Ngos, Simon, III
通讯作者	N'nanga, A (corresponding author), Univ Yaounde I, Fac Sci, Dept Earth Sci, POB 812, Yaounde, Cameroon.
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2021
卷号	182
英文摘要	A significant change towards more arid/seasonal climate conditions in the transitional zone between equatorial and sahelian zones in Central Africa was clearly recorded in the Lake Fonjak, Adamawa plateau. In the aim of taking out the implication of paleoclimate variations on lake level changes in the Adamawa plateau during the Holocene, diatoms records coupled with C/N ratio and P content in the Lake Fonjak sediments were studied. They exhibit three zones related to the water level variations since 13,500 cal yr BP. From 13,500 to 4400 cal yr BP, the zone I evidences the predominance of planktonics, suggesting a high-water level in the Lake Fonjak at this period. From 4400 to 3600 cal yr BP, the zone II shows the appearance of tychoplanktonics, followed by the rise of both aerophilous and epiphytics, indicating the lake level oscillations at centennial timescale with shallow water and dried areas in the borders. Beyond 3600 cal yr BP, the zone III corresponds to the rise of both benthics and aerophilous, suggesting an important lowering of the water-level until sub-modern conditions. These changes are linked to the displacement ITCZ mean positions in the context of the decreasing summer insolation in the northern hemisphere.
英文关键词	Diatoms Sediments Lake-level Paleoclimate Holocene
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000687339400004
WOS关键词	HUMID PERIOD TERMINATION ; WEST-AFRICA ; CLIMATIC CHANGES ; LATE QUATERNARY ; HYDROLOGICAL CHANGES ; FOREST RESPONSE ; FOSSIL DIATOMS ; RECORD ; VEGETATION ; DYNAMICS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368428
作者单位	[N'nanga, Alexandrine; Ngos, Simon, III] Univ Yaounde I, Fac Sci, Dept Earth Sci, POB 812, Yaounde, Cameroon; [Nguetsop, Victor Francois; Tematio, Paul] Univ Dschang, Fac Sci, Dept Plant Biol, POB 67, Dschang, Cameroon; [Ngos, Simon, III] Univ Maroua, Fac Sci, Dept Earth Sci, POB 46, Maroua, Cameroon
推荐引用方式 GB/T 7714	N'nanga, Alexandrine,Nguetsop, Victor Francois,Tematio, Paul,et al. Paleoclimate implication on the Lake Fonjak level changes (Adamawa Plateau, Central Cameroon) during the last 13,500 cal yr BP[J],2021,182.
APA	N'nanga, Alexandrine,Nguetsop, Victor Francois,Tematio, Paul,&Ngos, Simon, III.(2021).Paleoclimate implication on the Lake Fonjak level changes (Adamawa Plateau, Central Cameroon) during the last 13,500 cal yr BP.JOURNAL OF AFRICAN EARTH SCIENCES,182.
MLA	N'nanga, Alexandrine,et al."Paleoclimate implication on the Lake Fonjak level changes (Adamawa Plateau, Central Cameroon) during the last 13,500 cal yr BP".JOURNAL OF AFRICAN EARTH SCIENCES 182(2021).