Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1715336115 |
Early anthropogenic impact on Western Central African rainforests 2,600 y ago | |
Garcin, Yannick1; Deschamps, Pierre2; Menot, Guillemette3; de Saulieu, Geoffroy4; Schefuss, Enno5; Sebag, David6,7,8; Dupont, Lydie M.5; Oslisly, Richard4,9; Brademann, Brian10; Mbusnum, Kevin G.11; Onana, Jean-Michel12,13; Ako, Andrew A.14; Epp, Laura S.15; Tjallingii, Rik10; Strecker, Manfred R.1; Brauer, Achim10; Sachse, Dirk16 | |
2018-03-27 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:13页码:3261-3266 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; France; Switzerland; Gabon; Cameroon |
英文摘要 | A potential human footprint on Western Central African rainforests before the Common Era has become the focus of an ongoing controversy. Between 3,000 y ago and 2,000 y ago, regional pollen sequences indicate a replacement of mature rainforests by a forest-savannah mosaic including pioneer trees. Although some studies suggested an anthropogenic influence on this forest fragmentation, current interpretations based on pollen data attribute the "rainforest crisis" to climate change toward a drier, more seasonal climate. A rigorous test of this hypothesis, however, requires climate proxies independent of vegetation changes. Here we resolve this controversy through a continuous 10,500-y record of both vegetation and hydrological changes from Lake Barombi in Southwest Cameroon based on changes in carbon and hydrogen isotope compositions of plant waxes. delta C-13-inferred vegetation changes confirm a prominent and abrupt appearance of C-4 plants in the Lake Barombi catchment, at 2,600 calendar years before AD 1950 (cal y BP), followed by an equally sudden return to rainforest vegetation at 2,020 cal y BP. delta D values from the same plant wax compounds, however, show no simultaneous hydrological change. Based on the combination of these data with a comprehensive regional archaeological database we provide evidence that humans triggered the rainforest fragmentation 2,600 y ago. Our findings suggest that technological developments, including agricultural practices and iron metallurgy, possibly related to the large-scale Bantu expansion, significantly impacted the ecosystems before the Common Era. |
英文关键词 | Western Central Africa late Holocene rainforest crisis paleohydrology human activity |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000428382400038 |
WOS关键词 | LAKE BAROMBI MBO ; HYDROGEN-ISOTOPIC COMPOSITION ; HUMID PERIOD TERMINATION ; CLIMATIC CHANGES ; VEGETATION CHANGE ; CENTRAL CAMEROON ; BANTU EXPANSION ; POLLEN ; BP ; RESOLUTION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204887 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Potsdam, Inst Earth & Environm Sci, D-14476 Potsdam, Germany; 2.Aix Marseille Univ, CNRS, IRD, Coll France,Ctr Europeen Rech & Enseignement Geos, F-13545 Aix En Provence, France; 3.Univ Lyon 1, Univ Lyon, Ens Lyon, CNRS,UMR LGL TPE 5276, F-69342 Lyon, France; 4.MNHN, IRD, Patrimoines Locaux & Gouvernance UMR 208, F-75005 Paris, France; 5.Univ Bremen, MARUM Ctr Marine Environm Sci, D-28359 Bremen, Germany; 6.Normandie Univ, UNIROUEN, UNICAEN, CNRS,M2C, F-76000 Rouen, France; 7.Univ Montpellier, IRD, LMI PicassEau, HSM, F-34095 Montpellier, France; 8.Univ Lausanne, Geopolis, Inst Earth Surface Dynam, CH-1015 Lausanne, Switzerland; 9.Agence Natl Parcs Nationaux, Libreville 20379, Gabon; 10.GFZ German Res Ctr Geosci, Climate Dynam & Landscape Evolut, Sect 5-2, D-14473 Potsdam, Germany; 11.Aix Marseille Univ, CNRS, Lab Chim Environm FRE 3416, F-13545 Aix En Provence, France; 12.Univ Yaounde I, Fac Sci, Dept Plant Biol, Yaounde, Cameroon; 13.Inst Rech Agr Dev, Herbier Natl Cameroun, Yaounde, Cameroon; 14.Inst Geol & Min Res, Yaounde, Cameroon; 15.Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, D-14473 Potsdam, Germany; 16.GFZ German Res Ctr Geosci, Geomorphol, Sect 5-1, D-14473 Potsdam, Germany |
推荐引用方式 GB/T 7714 | Garcin, Yannick,Deschamps, Pierre,Menot, Guillemette,et al. Early anthropogenic impact on Western Central African rainforests 2,600 y ago[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(13):3261-3266. |
APA | Garcin, Yannick.,Deschamps, Pierre.,Menot, Guillemette.,de Saulieu, Geoffroy.,Schefuss, Enno.,...&Sachse, Dirk.(2018).Early anthropogenic impact on Western Central African rainforests 2,600 y ago.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(13),3261-3266. |
MLA | Garcin, Yannick,et al."Early anthropogenic impact on Western Central African rainforests 2,600 y ago".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.13(2018):3261-3266. |
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