Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1705168114 |
Southern Annular Mode drives multicentury wildfire activity in southern South America | |
Holz, Andres1; Paritsis, Juan2; Mundo, Ignacio A.3,4; Veblen, Thomas T.5; Kitzberger, Thomas2; Williamson, Grant J.6; Araoz, Ezequiel7; Bustos-Schindler, Carlos8; Gonzalez, Mauro E.8,9; Ricardo Grau, H.7,10,11; Quezada, Juan M.12 | |
2017-09-05 | |
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 | 2017 |
卷号 | 114期号:36页码:9552-9557 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Argentina; Australia; Chile |
英文摘要 | The Southern Annular Mode (SAM) is the main driver of climate variability at mid to high latitudes in the Southern Hemisphere, affecting wildfire activity, which in turn pollutes the air and contributes to human health problems and mortality, and potentially provides strong feedback to the climate system through emissions and land cover changes. Here we report the largest Southern Hemisphere network of annually resolved tree ring fire histories, consisting of 1,767 fire-scarred trees from 97 sites (from 22 05 to 54 05) in southern South America (SAS), to quantify the coupling of SAM and regional wildfire variability using recently created multicentury proxy indices of SAM for the years 1531-2010 AD. We show that at interannual time scales, as well as at multidecadal time scales across 37-54 degrees s, latitudinal gradient elevated wildfire activity is synchronous with positive phases of the SAM over the years 1665-1995. Positive phases of the SAM are associated primarily with warm conditions in these biomass-rich forests, in which widespread fire activity depends on fuel desiccation. Climate modeling studies indicate that greenhouse gases will force SAM into its positive phase even if stratospheric ozone returns to normal levels, so that climate conditions conducive to widespread fire activity in SAS will continue throughout the 21st century. |
英文关键词 | fire scars climate modes AAO synchrony warming |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409182200041 |
WOS关键词 | ATLANTIC OCEAN INFLUENCE ; FIRE REGIMES ; CLIMATE-CHANGE ; NORTHERN PATAGONIA ; WESTERN PATAGONIA ; PAST MILLENNIUM ; TIME-SERIES ; FORESTS ; HISTORY ; USA |
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/204776 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Portland State Univ, Dept Geog, Portland, OR 97207 USA; 2.Univ Nacl Comahue, Inst Invest Biodiversidad & Medioambiente, Lab Ecotono, Consejo Nacl Invest Cient & Tecn, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina; 3.Consejo Nacl Invest Cient & Tecn, Inst Argentino Nivol Glaciol & Ciencias Ambiental, Lab Dendrocronol & Hist Ambiental, Ctr Cient Tecnol, M5502IRA, Mendoza, Argentina; 4.Univ Nacl Cuyo, Fac Ciencias Exactas & Nat, M5502JMA, Mendoza, Argentina; 5.Univ Colorado, Dept Geog, Boulder, CO 80309 USA; 6.Univ Tasmania, Sch Biol Sci, Hobart, Tas 7001, Australia; 7.Univ Nacl Tucuman, Consejo Nacl Invest Cient & Tecn, Inst Ecol Reg, RA-4172 Yerba Buena, Argentina; 8.Univ Austral Chile, Inst Silvicultura, Fac Ciencias Forestales & Recursos Nat, Inst Conservac Biodiversidad & Terr, Valdivia, Chile; 9.Ctr Climate & Resilience Res CR2, Santiago, Chile; 10.Univ Nacl Tucuman, Fac Ciencias Nat, RA-4000 San Miguel De Tucuman, Tucuman, Argentina; 11.Univ Nacl Tucuman, Inst Miguel Lillo, RA-4000 San Miguel De Tucuman, Tucuman, Argentina; 12.Univ Nacl Misiones, Fac Ciencias Forestales, RA-3380 Eldorado, Misiones, Argentina |
推荐引用方式 GB/T 7714 | Holz, Andres,Paritsis, Juan,Mundo, Ignacio A.,et al. Southern Annular Mode drives multicentury wildfire activity in southern South America[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(36):9552-9557. |
APA | Holz, Andres.,Paritsis, Juan.,Mundo, Ignacio A..,Veblen, Thomas T..,Kitzberger, Thomas.,...&Quezada, Juan M..(2017).Southern Annular Mode drives multicentury wildfire activity in southern South America.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(36),9552-9557. |
MLA | Holz, Andres,et al."Southern Annular Mode drives multicentury wildfire activity in southern South America".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.36(2017):9552-9557. |
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