TY - JOUR PY - 2017// TI - Climatic influences on interannual variability in regional burn severity across western US forests JO - International journal of wildland fire A1 - Abatzoglou, John T. A1 - Kolden, Crystal A. A1 - Williams, A. Park A1 - Lutz, James A. A1 - Smith, Alistair M. S. SP - 269 EP - 275 VL - 26 IS - 4 N2 - Interannual variability in burn severity is assessed across forested ecoregions of the western United States to understand how it is influenced by variations in area burned and climate during 1984-2014. Strong correlations (|r| > 0.6) between annual area burned and climate metrics were found across many of the studied regions. The burn severity of individual fires and fire seasons was weakly, but significantly (P < 0.05), correlated with burned area across many regions. Interannual variability in fuel dryness evaluated with fuel aridity metrics demonstrated weak-to-moderate (|r| >0.4) relationships with regional burn severity, congruent with but weaker than those between climate and area burned for most ecoregions. These results collectively suggest that irrespective of other factors, long-term increases in fuel aridity will lead to increased burn severity in western United States forests for existing vegetation regimes.
Language: en
LA - en SN - 1049-8001 UR - http://dx.doi.org/10.1071/WF16165 ID - ref1 ER -