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

Volume 34 Number 2 2025

WF24011Effect of fire severity and presence of bamboo (Chusquea culeou) on soil chemical properties in Andean Patagonian forests of Argentina

M. Florencia Urretavizcaya, M. Melisa Rago, Marina Caselli, Fernanda Ríos Campano, Stefano Gianolini and Virginia Alonso

Following a fire event, soil pH, organic matter, electrical conductivity, nitrogen, carbon–nitrogen ratio, and cation exchange capacity are changed by fire severity in Patagonia, Argentina. Regardless of fire, soil properties depend on forest type and presence of bamboo (Chusquea culeou). This information can be used for forest management and restoration.

WF24096Short-term impacts of operational fuel treatments on modelled fire behaviour and effects in seasonally dry forests of British Columbia, Canada

Kea H. Rutherford 0009-0000-8321-8133, Bianca N. I. Eskelson, Lori D. Daniels, Valerie LeMay, Gregory A. Greene and Robert W. Gray

We modelled fire behaviour and effects before and after operational fuel treatments in seasonally dry forests of British Columbia, Canada. Low- and high-intensity thinning reduced potential of passive and active crown fire, respectively. Pruning had little added benefit to thinning. Chipping or pile burning of residue fuel mitigated potential fire behaviour.

This study improves fire emissions inventories (FEIs) by combining high spatial and temporal resolution burned area information and accounts for missing data caused by cloud cover. This dataset provides daily fire emissions information that can be used to estimate human exposure in acute health effects studies.

This study highlights spatial clusters of forest fires in the Western Himalayan region, India, based on long-term spatial and temporal patterns of forest fire and related environmental variables. High forest fire severity is observed in years having warm and dry winters that result in loss of fuel and soil moisture.

WF24057Using hydrological modelling to improve the Fire Weather Index system over tropical peatlands of peninsular Malaysia, Sumatra and Borneo

J. Mortelmans 0000-0003-1523-2851, S. Apers 0000-0002-5566-4950, G. J. M. De Lannoy, S. Veraverbeke, R. D. Field, N. Andela, S. E. Page and M. Bechtold 0000-0002-8042-9792

Global wildfires necessitate accurate risk assessments. The Canadian Fire Weather Index (FWI) is a renowned system used to assess fire danger. Its effectiveness in peatlands, however, is limited. Prior research hints at improved FWI accuracy with inclusion of groundwater data. Our study validates this for tropical southeast Asian peatlands.

Australia’s wildfire frequency is currently estimated using incomplete data, which may be possible to rectify using magnetic susceptibility readings in combination with charcoal records. This review paper explores the potential of using magnetic susceptibility to identify past fire events in Australia.

Time to 50% maturity was 9–12 years longer and seed stores 50–90% lower in 2017 than in the 1990s for populations of two fire-killed serotinous species (Hakea decurrens and Banksia ornata) in south-east Australian woodlands/shrublands. Decreasing rainfall with climate change may already be threatening the persistence of these, and similar, species.

WF24030Experimental investigation of fire behaviours and heat transfer in single cypress tree crown fires

Hanwen Guo, Yunji Gao, Ziqun Ye, Zhengyuan Yang, Yuchun Zhang, Zijian Lei and Ao Sun

Crown fire experiments are carried out using cypress trees with different crown heights to investigate the behaviour and heat transfer of crown fire. The crown fire behaviours, including flame geometry, fire plume temperature, mass loss rate and heat flux under different crown heights, are compared and analysed.

WF24121A bottom–up savanna fire fuel consumption inventory and its application to savanna burning in Kafue National Park, Zambia

Tom Eames, Adrian Kaluka, Roland Vernooij, Cameron Yates, Jeremy Russell-Smith and Guido R. van der Werf

We detail construction of a bottom–up fuel inventory including all major fuel types relevant to savanna burning. Using this methodology can give accurate and dynamic insights into available fuel. We compare calculated emissions with those from other models and examine emissions for a case study in Kafue national park (Zambia).

This article belongs to the collection: Savanna Burning.

WF23162Pattern recognition and modelling of virulent wildfires in Spain

María Bugallo 0000-0001-6290-3510, María Dolores Esteban, Manuel Francisco Marey-Pérez 0000-0002-8947-8355 and Domingo Morales

Flow chart of procedure for analysing wildfire data to map risk of large forest fires and two resulting map outputs

This work analyses arson and natural wildfire behaviour in Spain through pattern recognition techniques and zero-inflated generalised mixed models. Models used are statistically based and mathematically supported. Our research provides risk measures that allow a better spatio-temporal distribution of fire suppression media and therefore a better management of resources.

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