figshare
Browse
Fuel availability not fire weather controls.pdf (966.1 kB)

Fuel availability not fire weather controls boreal wildfire severity and carbon emissions

Download (966.1 kB)
journal contribution
posted on 2021-01-28, 17:02 authored by Xanthe Walker, Brendan Rogers, Sander Veraverbeke, Jill Johnstone, Jenn Baltzer, Kirsten Barrett, L Bourgeau-Chavez, N Day, W J de Groot, C M Dieleman, S Goetz, E Hoy, L K. Jenkins, E S Kane, M A Parisien, S Potter, E A G Schuur, M Turetsky, E Whitman, M C Mack
Carbon (C) emissions from wildfires are a key terrestrial–atmosphere interaction that influences global atmospheric composition and climate. Positive feedbacks between climate warming and boreal wildfires are predicted based on top-down controls of fire weather and climate, but C emissions from boreal fires may also depend on bottom-up controls of fuel availability related to edaphic controls and overstory tree composition. Here we synthesized data from 417 field sites spanning six ecoregions in the northwestern North American boreal forest and assessed the network of interactions among potential bottom-up and top-down drivers of C emissions. Our results indicate that C emissions are more strongly driven by fuel availability than by fire weather, highlighting the importance of fine-scale drainage conditions, overstory tree species composition and fuel accumulation rates for predicting total C emissions. By implication, climate change-induced modification of fuels needs to be considered for accurately predicting future C emissions from boreal wildfires.

History

Citation

Nature Climate Change, 10, 1130–1136 (2020). https://doi.org/10.1038/s41558-020-00920-8

Author affiliation

School of Geography, Geology and Environment, University of Leicester

Version

  • AM (Accepted Manuscript)

Published in

Nature Climate Change

Volume

10

Issue

12

Pagination

1130 - 1136

Publisher

Nature Research

issn

1758-678X

eissn

1758-6798

Acceptance date

2020-09-03

Copyright date

2020

Available date

2021-04-12

Language

en

Usage metrics

    University of Leicester Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC