Relating surface fire spread to landscape structure: An application of FARSITE in a managed forest landscape

Ryu, Soung-Ryoul; Chen, Jiquan; Zheng, Daolan; LaCroix, Jacob J.

doi:10.1016/j.landurbplan.2007.05.002

Cited by 43 publications

(36 citation statements)

References 27 publications

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“…For example, the v www.esajournals.org influence of fuels increases sharply as spatial autocorrelation increases. These findings and those of Ryu et al (2007) could have important implications for fuels reduction treatments intended to reduce the probability of wildland fire. That is, in addition to 'area treated', spatial configuration of fuels may be an important consideration (Finney 2001).…”

Section: Discussionmentioning

confidence: 75%

Spatial bottom‐up controls on fire likelihood vary across western North America

2012

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Abstract. The unique nature of landscapes has challenged our ability to make generalizations about the effects of bottom-up controls on fire regimes. For four geographically distinct fire-prone landscapes in western North America, we used a consistent simulation approach to quantify the influence of three key bottom-up factors, ignitions, fuels, and topography, on spatial patterns of fire likelihood. We first developed working hypotheses predicting the influence of each factor based on its spatial structure (i.e., autocorrelation) in each of the four study areas. We then used a simulation model parameterized with extensive fire environment data to create high-resolution maps of fire likelihood, or burn probability (BP). To infer the influence of each bottom-up factor within and among study areas, these BP maps were compared to parallel sets of maps in which one of the three bottom-up factors was randomized. Results showed that ignition pattern had a relatively minor influence on the BP across all four study areas, whereas the influence of fuels was large. The influence of topography was the most equivocal among study areas; it had an insignificant influence in one study area and was the dominant control in another. We also found that the relationship between the influence of these factors and their spatial structure appeared nonlinear, which may have important implications for management activities aimed at attenuating the effect of fuels or ignitions on wildfire risk. This comparative study using landscapes with different biophysical and fire regime characteristics demonstrates the importance of employing consistent methodology to pinpoint the influence of bottom-up controls.

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Section: Discussionmentioning

confidence: 75%

Spatial bottom‐up controls on fire likelihood vary across western North America

2012

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“…Finally, even though both studies used three fire weather risks, the present study ran 100 simulations per landscape scenario and fire weather risks that all differed from their ignition location, as compared with the 12 different ignition points in LaCroix et al (2006). Other related studies (Ryu et al 2007;LaCroix et al 2008) have found that stands with low fuel amounts and a particular spatial shape (area-to-edge ratio) in the landscape could act as fire barriers. This is different from the results of the present study where tree species composition directly affected area burned, with ,14% of the variance explained by landscape composition.…”

Section: Discussionmentioning

confidence: 97%

Landscape composition influences local pattern of fire size in the eastern Canadian boreal forest: role of weather and landscape mosaic on fire size distribution in mixedwood boreal forest using the Prescribed Fire Analysis System

Hély

Fortin

Anderson³

et al. 2010

Int. J. Wildland Fire

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Abstract. Wildfire simulations were carried out using the Prescribed Fire Analysis System (PFAS) to study the effect of landscape composition on fire sizes in eastern Canadian boreal forests. We used the Lake Duparquet forest as reference, plus 13 forest mosaic scenarios whose compositions reflected lengths of fire cycle. Three fire weather risks based on duff moisture were used. We performed 100 simulations per risk and mosaic, with topography and hydrology set constant for the reference. Results showed that both weather and landscape composition significantly influenced fire sizes. Weather related to fire propagation explained almost 79% of the variance, while landscape composition and weather conditions for ignition explained ,14 and 2% respectively. In terms of landscape, burned area increased with increasing presence of shade-tolerant species, which are related to long fire cycles. Comparisons among the distributions of cumulated area burned from scenarios plus those from the Société de Protection des Forêts contre le Feu database archives showed that PFAS simulated realistic fire sizes using the 80-100% class of probable fire extent. Future analyses would best be performed on a larger region as the limited size of the study area could not capture fires larger than 11 000 ha, which represent 3% of fires but 65% of the total area burned at the provincial scale.

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“…Los disturbios por incendios forestales son reconocidos como un problema serio debido a sus enormes impactos ecológicos y económicos (Cardille et al, 2001;Gustafson et al, 2004;González et al, 2005;Ryu et al, 2007). Los incendios forestales resultan en enormes pérdidas económicas debido a la quema de madera, disminución de la calidad del bosque, altos costos de supresión, efectos en el medio ambiente y los valores recreacionales, y ocasionalmente causando la pérdida de vidas humanas (Yadav & Kaushik, 2007).…”

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Influencia de la heterogeneidad del paisaje en la ocurrencia de incendios forestales en Chile Central

Altamirano

Salas

Yaitul

et al. 2013

Rev. geogr. Norte Gd.

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RESUMENA pesar de la reconocida importancia de los incendios forestales, la investigación sobre modelación de ocurrencia de incendios es escasa en el Hemisferio Sur, y en particular en Chile. Se estudió el efecto de la heterogeneidad del paisaje en la ocurrencia de incendios forestales en Chile Central. Se ajustó un modelo que incluye variables climáticas, topográfi cas, de actividad humana y cobertura del suelo. La probabilidad de ocurrencia aumentó con una mayor temperatura mínima y estacionalidad de la precipitación, y disminuyó con una mayor distancia a las ciudades. El modelo clasifi có correctamente un 65% de los datos de validación. Las predicciones sugieren que un 38% del área de estudio tiene muy alta probabilidad de ocurrencia de incendios, la cual aumenta bajo un simulado escenario futuro. El modelo predictivo debería ser utilizado como una herramienta para orientar aspectos urgentes de protección y prevención, lo cual debe continuar siendo discutido y evaluado.Palabras clave: Clima, disturbios antrópicos, patrones de paisaje, regresión logísti-ca, sensores remotos. ABSTRACTForest fi res are recognized as a serious problem. Despite its importance, research into modelling of forest fi re occurrence is lacking for the southern hemisphere, in particular for Chile. We investigated how landscape heterogeneity affects the probability of the occurrence of forest fi res in Central Chile. We fi tted a logistic regression model which included climatic, topographic, human-related and land-cover variables. Estimated probabilities of forest fi re occurrence increased positively

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Relating surface fire spread to landscape structure: An application of FARSITE in a managed forest landscape

Cited by 43 publications

References 27 publications

Spatial bottom‐up controls on fire likelihood vary across western North America

Spatial bottom‐up controls on fire likelihood vary across western North America

Landscape composition influences local pattern of fire size in the eastern Canadian boreal forest: role of weather and landscape mosaic on fire size distribution in mixedwood boreal forest using the Prescribed Fire Analysis System

Influencia de la heterogeneidad del paisaje en la ocurrencia de incendios forestales en Chile Central

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