Modeling Landscape Disturbance

Turner, Monica G.; Dale, Virginia H.

doi:10.1007/978-1-4757-4244-2_13

Cited by 38 publications

(13 citation statements)

References 60 publications

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“…Disturbance effects can occur at many spatial scales, directly or indirectly affecting soils, plants, and stands within landscapes (Pickett and White, 1985;Gardner et al, 1999). Moreover, many disturbances (fires, insect and disease outbreaks) can propagate both contagiously and discontinuously across space; both of these characteristics make their dynamic representation in LMs a challenge (Turner and Dale, 1992;Raffa et al, 2008).…”

Section: Disturbancementioning

confidence: 99%

Representing climate, disturbance, and vegetation interactions in landscape models

Keane

McKenzie

Falk

et al. 2015

Ecological Modelling

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Section: Disturbancementioning

confidence: 99%

Representing climate, disturbance, and vegetation interactions in landscape models

Keane

McKenzie

Falk

et al. 2015

Ecological Modelling

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“…Disturbances play a fundamental role in shaping the structure and dynamics of the landscape (Turner and Dale, 1990). On one hand, the spatial propagation of the disturbances is a function of the abundance and arrangement of disturbance-susceptible habitats (Turner et al, 1989).…”

Section: Introductionmentioning

confidence: 99%

Land use and topography influences on wildfire occurrence in northern Portugal

Carmo

Moreira

Casimiro

et al. 2011

Landscape and Urban Planning

159

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a b s t r a c tUnderstanding the spatial patterns of wildfire ignition and spread has important implications for landscape planning for reducing fire hazard. In this paper we characterise the patterns of wildfire occurrence in 3 regions of northern Portugal, using selection ratio functions to evaluate the fire proneness of different land cover and topographic categories. For attaining this objective we characterised 1382 wildfires larger than 5 ha, which occurred in the years 1990-1991, according to land cover (10 categories), slope (5 categories) and aspect (5 categories) within which they occurred. For each fire, the use of the different land cover and topographic categories was compared with availability in a surrounding buffer. For land cover, fire proneness was much higher in shrublands, whereas agricultural areas and agro-forestry systems where less likely to burn. In terms of slope, steep slopes were more prone to fire. Differences in land cover in the different slope categories contributed to this result, although there was an overall slope effect on the fire proneness of all land cover types. In terms of aspect, only flat areas were less fire prone. Finally, there were regional variations in land cover susceptibility to fire, but these did not occur for slope or aspect. In terms of landscape planning these results suggest that the more effective fuel breaks should be implemented in areas with agricultural crops in flat slopes.

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“…Wildfires start from a local epicentre (ignition point) and spread across landscapes as a function of the abundance and arrangement of disturbance-susceptible patches (Forman, 1997;Turner et al, 1989). Fire spread rate can be facilitated or retarded by landscape heterogeneity (Turner and Dale, 1990). Thus, the spatial pattern of fire ignition and spread across landscapes are affected by fire proneness, i.e.…”

Section: Introductionmentioning

confidence: 99%

Landscape – wildfire interactions in southern Europe: Implications for landscape management

Moreira¹,

Viedma²,

Arianoutsou³

et al. 2011

Journal of Environmental Management

731

567

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Every year approx. half a million hectares of land are burned by wildfires in southern Europe, causing large ecological and socio-economic impacts. Climate and land use changes in the last decades have increased fire risk and danger. In this paper we review the available scientific knowledge on the relationships between landscape and wildfires in the Mediterranean region, with a focus on its application for defining landscape management guidelines and policies that could be adopted in order to promote landscapes with lower fire hazard. The main findings are that (1) socio-economic drivers have favoured land cover changes contributing to increasing fire hazard in the last decades, (2) large wildfires are becoming more frequent, (3) increased fire frequency is promoting homogeneous landscapes covered by fire-prone shrublands; (4) landscape planning to reduce fuel loads may be successful only if fire weather conditions are not extreme. The challenges to address these problems and the policy and landscape management responses that should be adopted are discussed, along with the major knowledge gaps.

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Modeling Landscape Disturbance

Cited by 38 publications

References 60 publications

Representing climate, disturbance, and vegetation interactions in landscape models

Representing climate, disturbance, and vegetation interactions in landscape models

Land use and topography influences on wildfire occurrence in northern Portugal

Landscape – wildfire interactions in southern Europe: Implications for landscape management

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