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International Journal of Wildland Fire International Journal of Wildland Fire Society
Journal of the International Association of Wildland Fire
International Journal of Wildland Fire

International Journal of Wildland Fire

Volume 25 Number 2 2016

WF15036On the extent of fire-induced forest degradation in Mato Grosso, Brazilian Amazon, in 2000, 2005 and 2010

Jukka Miettinen, Yosio E. Shimabukuro, René Beuchle, Rosana C. Grecchi, Marcela Velasco Gomez, Dario Simonetti and Frédéric Achard
pp. 129-136

We analyse the extent of fire-induced forest degradation in Mato Grosso State, Brazil, in 2000, 2005 and 2010. The largest extent of fire-induced forest degradation is recorded in 2010, in a year with less severe fire season than 2005, potentially indicating increase in fire susceptibility of Amazonian forests.

WF14205The effect of fire on tree–grass coexistence in savannas: a simulation study

Veiko Lehsten, Almut Arneth, Allan Spessa, Kirsten Thonicke and Aristides Moustakas
pp. 137-146

A dynamic vegetation model is used to assess the effect of fire on tree:grass ratios and the African savanna biome distribution. High fire frequencies were found to maintain tree–grass coexistence under mesic conditions (700–900 mm mean annual precipitation) and the incorporation of fire substantially improved continental simulations of biomes.


Wildfire plays a vital role in grassland ecosystems. Satellite images with a high spatial and temporal coverage offer an effective tool for investigating grassland fires. This study used Landsat imagery that was available publicly to investigate a wildfire disturbance in the Grasslands National Park, Canada and provided insights for fire management in the grasslands.

WF15130Towards a new paradigm in fire severity research using dose–response experiments

Alistair M. S. Smith, Aaron M. Sparks, Crystal A. Kolden, John T. Abatzoglou, Alan F. Talhelm, Daniel M. Johnson, Luigi Boschetti, James A. Lutz, Kent G. Apostol, Kara M. Yedinak, Wade T. Tinkham and Robert J. Kremens
pp. 158-166

This study presents an alternative approach to developing severity assessments. A synthesis of challenges using current approaches is presented. The proposed approach links heat transfer dose–response experimental treatments with plant physiology response metrics. The potential of this new approach is demonstrated via a case study.

WF14216Quantifying the influence of previously burned areas on suppression effectiveness and avoided exposure: a case study of the Las Conchas Fire

Matthew P. Thompson, Patrick Freeborn, Jon D. Rieck, David E. Calkin, Julie W. Gilbertson-Day, Mark A. Cochrane and Michael S. Hand
pp. 167-181

We present a case study of the Las Conchas Fire (2011), examining how previously burned areas may have influenced fire outcomes. Our analyses quantify fire line effectiveness and avoided exposure, and suggest in particular that the Cerro Grande Fire (2000) helped mitigate fire behaviour and enhance suppression effectiveness.

WF15107Wildland fire limits subsequent fire occurrence

Sean A. Parks, Carol Miller, Lisa M. Holsinger, L. Scott Baggett and Benjamin J. Bird
pp. 182-190

We evaluated the extent to which previous wildland fire inhibits the ignition and spread of subsequent fire in four large study areas in the western US. Results indicate that wildland fire limits subsequent fire occurrence in all study areas. The longevity of this effect, however, varies among study areas.

WF15091Future burn probability in south-central British Columbia

Xianli Wang, Marc-André Parisien, Stephen W. Taylor, Daniel D. B. Perrakis, John Little and Mike D. Flannigan
pp. 200-212

A simulation-based framework was used to assess the effect of future fuels, weather and ignitions on burn probability in the Thompson–Okanagan region, British Columbia. Changes in potential vegetation may offset the effect of increases in the number of fire ignitions and fire weather severity on burn probability in this region.

WF14217The long-term impact of low-intensity surface fires on litter decomposition and enzyme activities in boreal coniferous forests

Kajar Köster, Frank Berninger, Jussi Heinonsalo, Aki Lindén, Egle Köster, Hannu Ilvesniemi and Jukka Pumpanen
pp. 213-223

We assessed the impact of low-intensity surface fires in natural sub-arctic stands. Our results indicate long-lasting fire effects on soil CO2 efflux, litter decomposition, soil fungal and microbial biomass, and extracellular enzyme activities. These values were lowest soon after fire and recovered within 40 to 60 years following the fire disturbance.

WF15027Using the photoload technique with double sampling to improve surface fuel loading estimates

Wade T. Tinkham, Chad M. Hoffman, Jesse M. Canfield, Emma Vakili and Robin M. Reich
pp. 224-228

This study evaluated double sampling to improve photoload estimates of fine woody fuels. We found that double sampling with a regression correction provided a substantial improvement in the accuracy and precision of fine woody fuel load estimates, when sample size is ≥20 and double sampling rate is ≥20%.

WF15131Replacing time with space: using laboratory fires to explore the effects of repeated burning on black carbon degradation

Wade T. Tinkham, Alistair M. S. Smith, Philip E. Higuera, Jeffery A. Hatten, Nolan W. Brewer and Stefan H. Doerr
pp. 242-248

We highlight via a laboratory experiment the potential of repeated burns to reduce black carbon residence times. Our results indicate that for black carbon that remains in situ to be most effective as a net carbon sink, it must be incorporated deep into the organic layer or into the mineral soil matrix before subsequent burning.

WF15074Modelling and quantifying the spatial distribution of post-wildfire ash loads

Chris J. Chafer, Cristina Santín and Stefan H. Doerr
pp. 249-255

We present a new methodology that allowed modelling the amount and spatial distribution of wildfire ash (t ha−1) in a burnt south-east Australian eucalypt forest. This tool can be applied in the region and adapted for use elsewhere, to inform post-fire land management for mitigating the effects of ash, such as debris flows or water contamination.

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