The North American tree‐ring fire‐scar network

作者：Ellis Q. Margolis, Christopher H. Guiterman, Raphaël D. Chavardès, Jonathan D. Coop, Kelsey Copes‐Gerbitz, Denyse A. Dawe, Donald A. Falk, James D. Johnston, Evan R. Larson, Hang Li, Joseph M. Marschall, Cameron E. Naficy, Adam T. Naito, Marc‐André Parisien, Sean A. Parks, Jeanne Portier, Helen M. Poulos, Kevin M. Robertson, James H. Speer‬, Michael C. Stambaugh, Thomas W. Swetnam, Alan J. Tepley, Ichchha Thapa, Craig D. Allen, Yves Bergeron, Lori D. Daniels, Peter Z. Fulé, David Gervais, Martin P. Girardin, Grant L. Harley, Jill E. Harvey, Kira M. Hoffman, Jean M. Huffman, Matthew D. Hurteau, Lane B. Johnson, Charles W. Lafon, Manuel K. Lopez, Richard Maxwell, Jed Meunier, Malcolm P. North, Monica T. Rother, Micah R. Schmidt, Rosemary L. Sherriff, Lauren A. Stachowiak, Alan H. Taylor, Erana J. Taylor, Valérie Trouet, Miguel L. Villarreal, Larissa L. Yocom, Karen B. Arabas, Alexis H. Arizpe, Dominique Arseneault, Alicia Azpeleta Tarancón, Christopher Baisan, Erica R Bigio, Franco Biondi, Gabriel D. Cahalan, Anthony C. Caprio, Julián Cerano‐Paredes, Brandon M. Collins, Daniel C. Dey, Igor Drobyshev, Calvin A. Farris, M. Adele Fenwick, William T. Flatley, M. Lisa Floyd, Ze’ev Gedalof, Andrés Holz, Lauren F. Howard, David W. Huffman, José M. Iniguez, Kurt F. Kipfmueller, Stanley G. Kitchen, Keith Lombardo, Donald McKenzie, Andrew G. Merschel, Kerry L. Metlen, Jesse Minor, Christopher D. O’Connor, Laura Platt, William Platt, Thomas Saladyga, Amanda B. Stan, Scott L. Stephens, Colleen M. Sutheimer, Ramzi Touchan, Peter J. Weisberg · 发表于：Ecosphere · 年份：2022 · DOI：10.1002/ecs2.4159 · 被引用次数：71 · 研究领域：Fire effects on ecosystems、Tree-ring climate responses、Plant Water Relations and Carbon Dynamics

Abstract Fire regimes in North American forests are diverse and modern fire records are often too short to capture important patterns, trends, feedbacks, and drivers of variability. Tree‐ring fire scars provide valuable perspectives on fire regimes, including centuries‐long records of fire year, season, frequency, severity, and size. Here, we introduce the newly compiled North American tree‐ring fire‐scar network (NAFSN), which contains 2562 sites, >37,000 fire‐scarred trees, and covers large parts of North America. We investigate the NAFSN in terms of geography, sample depth, vegetation, topography, climate, and human land use. Fire scars are found in most ecoregions, from boreal forests in northern Alaska and Canada to subtropical forests in southern Florida and Mexico. The network includes 91 tree species, but is dominated by gymnosperms in the genus Pinus . Fire scars are found from sea level to >4000‐m elevation and across a range of topographic settings that vary by ecoregion. Multiple regions are densely sampled (e.g., >1000 fire‐scarred trees), enabling new spatial analyses such as reconstructions of area burned. To demonstrate the potential of the network, we compared the climate space of the NAFSN to those of modern fires and forests; the NAFSN spans a climate space largely representative of the forested areas in North America, with notable gaps in warmer tropical climates. Modern fires are burning in similar climate spaces as historical fires, but dispropo...