气候变化领域集成服务门户(CCPortal): A 5,000-year vegetation and fire history for tierra firme forests in the Medio Putumayo-Algodón watersheds, northeastern Peru

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DOI	10.1073/pnas.2022213118
	A 5,000-year vegetation and fire history for tierra firme forests in the Medio Putumayo-Algodón watersheds, northeastern Peru
	Piperno D.R.; McMichael C.H.; Pitman N.C.A.; Guevara Andino J.E.; Paredes M.R.; Heijink B.M.; Torres-Montenegro L.A.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:40
英文摘要	This paper addresses an important debate in Amazonian studies; namely, the scale, intensity, and nature of human modification of the forests in prehistory. Phytolith and charcoal analysis of terrestrial soils underneath mature tierra firme (nonflooded, nonriverine) forests in the remote Medio Putumayo-Algodón watersheds, northeastern Peru, provide a vegetation and fire history spanning at least the past 5,000 y. A tree inventory carried out in the region enables calibration of ancient phytolith records with standing vegetation and estimates of palm species densities on the landscape through time. Phytolith records show no evidence for forest clearing or agriculture with major annual seed and root crops. Frequencies of important economic palms such as Oenocarpus, Euterpe, Bactris, and Astrocaryum spp., some of which contain hyperdominant species in the modern flora, do not increase through prehistoric time. This indicates pre-Columbian occupations, if documented in the region with future research, did not significantly increase the abundance of those species through management or cultivation. Phytoliths from other arboreal and woody species similarly reflect a stable forest structure and diversity throughout the records. Charcoal 14C dates evidence local forest burning between ca. 2,800 and 1,400 y ago. Our data support previous research indicating that considerable areas of some Amazonian tierra firme forests were not significantly impacted by human activities during the prehistoric era. Rather, it appears that over the last 5,000 y, indigenous populations in this region coexisted with, and helped maintain, large expanses of relatively unmodified forest, as they continue to do today. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Amazonia; Charcoal; Phytoliths; Vegetation history
语种	英语
scopus关键词	Arecaceae; Article; Astrocaryum; Bactris; Euterpe; fire; forest; landscape; Oenocarpus; Peru; plant root; plant seed; vegetation; watershed
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238637
作者单位	Department of Anthropology, Smithsonian National Museum of Natural History, Washington, DC 20560, United States; Smithsonian Tropical Research Institute, Panama City, 0843-03092, Panama; Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, 1098 XH, Netherlands; Keller Science Action Center, Field Museum, Chicago, IL 60605-2496, United States; Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud–BIOMAS, Universidad de las Américas, Quito, 170513, Ecuador; Programa de Pós-Graduação em Ecologia, Universidade Federal de Juiz de Fora, MG, Juiz de Fora, 36036-900, Brazil; Herbarium Amazonense, Universidad Nacional de la Amazonía Peruana, Iquitos, 16002, Peru
推荐引用方式 GB/T 7714	Piperno D.R.,McMichael C.H.,Pitman N.C.A.,et al. A 5,000-year vegetation and fire history for tierra firme forests in the Medio Putumayo-Algodón watersheds, northeastern Peru[J],2021,118(40).
APA	Piperno D.R..,McMichael C.H..,Pitman N.C.A..,Guevara Andino J.E..,Paredes M.R..,...&Torres-Montenegro L.A..(2021).A 5,000-year vegetation and fire history for tierra firme forests in the Medio Putumayo-Algodón watersheds, northeastern Peru.Proceedings of the National Academy of Sciences of the United States of America,118(40).
MLA	Piperno D.R.,et al."A 5,000-year vegetation and fire history for tierra firme forests in the Medio Putumayo-Algodón watersheds, northeastern Peru".Proceedings of the National Academy of Sciences of the United States of America 118.40(2021).