Iron Age landscape changes in the Benoue River Valley, Cameroon

doi:10.1017/qua.2019.25

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Iron Age landscape changes in the Benoue River Valley, Cameroon
	Wright, David K.1,2; MacEachern, Scott 3; Ambrose, Stanley H.4; Choi, Jungyu 1; Choi, Jeong-Heon 5; Lang, Carol 6; Wang, Hong 2,7
通讯作者	Wright, David K.(daudi.wright@gmail.com)
	2019-09-01
发表期刊	QUATERNARY RESEARCH
ISSN	0033-5894
卷号	92 期号:2 页码:323-339
摘要	The introduction of agriculture is known to have profoundly affected the ecological complexion of landscapes. In this study, a rapid transition from C-3 to C-4 vegetation is inferred from a shift to higher stable carbon (C-13/C-12) isotope ratios of soils and sediments in the Benoue River Valley and upland Fali Mountains in northern Cameroon. Landscape change is viewed from the perspective of two settlement mounds and adjacent floodplains, as well as a rock terrace agricultural field dating from 1100 cal yr BP to the recent past (<400 cal yr BP). Nitrogen (N-15/N-14) isotope ratios and soil micromorphology demonstrate variable uses of land adjacent to the mound sites. These results indicate that Early Iron Age settlement practices involved exploitation of C-3 plants on soils with low delta N-15 values, indicating wetter soils. Conversely, from the Late Iron Age (>700 cal yr BP) until recent times, high soil and sediment delta C-13 and delta N-15 values reflect more C-4 biomass and anthropogenic organic matter in open, dry environments. The results suggest that Iron Age settlement practices profoundly changed landscapes in this part of West Africa through land clearance and/or utilization of C-4 plants.
关键词	Holocene Savanna West Africa Agriculture Anthropogenic soils Niche construction Soil carbon Nitrogen isotopes
DOI	10.1017/qua.2019.25
关键词[WOS]	DOSE-RATES ; LAND-USE ; HOLOCENE ; FORESTS ; AFRICA ; SINGLE ; N-15 ; LUMINESCENCE ; ABUNDANCES ; ISOTOPES
收录类别	SCI ; SCI
语种	英语
资助项目	National Geographic Committee for Research and Exploration grant[9404-13] ; Seoul National University faculty research grant
WOS研究方向	Physical Geography ; Geology
项目资助者	National Geographic Committee for Research and Exploration grant ; Seoul National University faculty research grant
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000487316500004
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/13346
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Wright, David K.
作者单位	1.Univ Oslo, Dept Archaeol Conservat & Hist, N-0315 Oslo, Norway 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 3.Duke Kunshan Univ, Div Social Sci, Kunshan 215316, Jiangsu, Peoples R China 4.Univ Illinois, Dept Anthropol, 109 Davenport Hall, Urbana, IL 61801 USA 5.Korea Basic Sci Inst, Dept Earth & Environm Sci, Chungbuk 28119, South Korea 6.Univ York, Dept Archaeol, York YO1 7EP, N Yorkshire, England 7.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Wright, David K.,MacEachern, Scott,Ambrose, Stanley H.,et al. Iron Age landscape changes in the Benoue River Valley, Cameroon[J]. QUATERNARY RESEARCH,2019,92(2):323-339.
APA	Wright, David K..,MacEachern, Scott.,Ambrose, Stanley H..,Choi, Jungyu.,Choi, Jeong-Heon.,...&Wang, Hong.(2019).Iron Age landscape changes in the Benoue River Valley, Cameroon.QUATERNARY RESEARCH,92(2),323-339.
MLA	Wright, David K.,et al."Iron Age landscape changes in the Benoue River Valley, Cameroon".QUATERNARY RESEARCH 92.2(2019):323-339.