Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1805259115 |
Indigenous impacts on North American Great Plains fire regimes of the past millennium | |
Roos, Christopher I.1; Zedeno, Maria Nieves2; Hollenback, Kacy L.1; Erlick, Mary M. H.3 | |
2018-08-07 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:32页码:8143-8148 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Fire use has played an important role in human evolution and subsequent dispersals across the globe, yet the relative importance of human activity and climate on fire regimes is controversial. This is particularly true for historical fire regimes of the Americas, where indigenous groups used fire for myriad reasons but paleofire records indicate strong climate-fire relationships. In North American grasslands, decadal-scale wet periods facilitated widespread fire activity because of the abundance of fuel promoted by pluvial episodes. In these settings, human impacts on fire regimes are assumed to be independent of climate, thereby diminishing the strength of climate-fire relationships. We used an offsite geoarchaeological approach to link terrestrial records of prairie fire activity with spatially related archaeological features (driveline complexes) used for intensive, communal bison hunting in north-central Montana. Radiocarbon-dated charcoal layers from alluvial and colluvial deposits associated with driveline complexes indicate that peak fire activity over the past millennium occurred coincident with the use of these features (ca. 1100-1650 CE). However, comparison of dated fire deposits with Palmer Drought Severity Index reconstructions reveal strong climate-fire linkages. More than half of all charcoal layers coincide with modest pluvial episodes, suggesting that fire use by indigenous hunters enhanced the effects of climate variability on prairie fire regimes. These results indicate that relatively small, mobile human populations can impact natural fire regimes, even in pyrogeographic settings in which climate exerts strong, top-down controls on fuels. |
英文关键词 | anthropogenic burning bison hunting pyric herbivory climate-fire relationships hunter gatherers |
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:000440982000044 |
WOS关键词 | UNITED-STATES ; CLIMATE ; IDENTIFICATION ; DEPOPULATION ; VARIABILITY ; GRASSLANDS ; HISTORY ; HUMANS |
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/204963 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Southern Methodist Univ, Dept Anthropol, Dallas, TX 75275 USA; 2.Univ Arizona, Sch Anthropol, Bur Appl Res Anthropol, Tucson, AZ 85721 USA; 3.Utah State Univ, Dept Sociol Social Work & Anthropol, Logan, UT 84322 USA |
推荐引用方式 GB/T 7714 | Roos, Christopher I.,Zedeno, Maria Nieves,Hollenback, Kacy L.,et al. Indigenous impacts on North American Great Plains fire regimes of the past millennium[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(32):8143-8148. |
APA | Roos, Christopher I.,Zedeno, Maria Nieves,Hollenback, Kacy L.,&Erlick, Mary M. H..(2018).Indigenous impacts on North American Great Plains fire regimes of the past millennium.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(32),8143-8148. |
MLA | Roos, Christopher I.,et al."Indigenous impacts on North American Great Plains fire regimes of the past millennium".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.32(2018):8143-8148. |
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