statistic that quantifies hotspot areas of firerisk has been used to identify statistically significant fire clusters during the ten-year time period. To assess the causative factors of fires, topographic, vegetation, climatic, anthropogenic
The aim of this study is to characterize spatio-temporal characteristics of fire events in Orissa state, eastern India. In this study, ATSR satellite remote sensing data have been used to quantify fire events from 1997 to 2006. The spatial scan
and accessibility factors were used in a multivariate statistical framework. Results suggested a clear variation in hotspots of fire occurences among districts.
The stratigraphy and fire history of the Kutai peatlands, Kalimantan, Indonesia
Charcoal ; Fire ; Forest ; Holocene ; Indonesia ; Kalimantan ; Palaeo-ecology ; Palaeolimnology ; Palynology ; Peat bog ; Pollen diagram ; Quaternary ; Stratigraphy
of the peat in the Kutai lies below the regional water table and is not at risk, however, forest and peat regrowth will be impacted by repeated fires. The limited pollen data for recovery after past fire events suggest that post-fire forest regeneration
This paper reports preliminary observations on the stratigraphy and fire history of the peat, supported by limited palynology and dating. Historical fires are associated with extreme El Niño yrs of drought, but human agency is important. The bulk
Using SPOT images and field sampling to map burn severity and vegetation factors affecting post forest fire erosion risk
Cartography ; Fire ; Forest ; France ; Remote sensing ; Risk ; SPOT ; Soil erosion ; South-Eastern France ; Vegetation dynamics ; Vegetation index ; Vinegrowing area ; Watershed
The aims of this study were to test the use of SPOT multispectral images for mapping burn severity, pre fire vegetation density, and longer term (2.5 years) vegetation recovery in the Giscle catchment, SE France. Indices tested include
the Normalized Burn Ratio (NBR), Normalized Difference Vegetation Index (NDVI), Differenced Normalized Burn Ratio (dNBR), and Differenced Normalized Difference Vegetation Index (dNDVI). Indices were compared to field data gathered immediately after the fire
and about 2.5 years later. The multi-temporal indices (dNBR and dNDVI) were more useful for burn severity mapping in the the heterogeneous foret-scrubland-vineyard environment. The second tests were on the potential impact of slope aspect on post fire
vegetation recovery rates 2.5 years after the fire using a combination of field and remote sensing methods. It is suggested that relationships between topography and soil properties can be useful for mapping both soil erodibility and post fire vegetation
The effects of 2 fire intensities on soil microbial biomass and soil respiration were measured in a field-scale experiment on a sweet chestnut forest slope in St. Antonino, southern Switzerland. 20 hours after a higher intensity fire on a slope
with double fuel load, soil respiration had increased and remained high for several months. The AA. suggest that this would increase the risk of nutrient outwash from the burnt slope. However, the size of the microbial biomass was unchanged compared to unburnt
control sites. Soil microbial biomass therefore played no significant role in limiting nutrient losses after the fire.
Atmospheric electricity ; Climatic index ; Drought ; Forest ; Forest fire ; Model ; Natural hazards ; United States of America ; Years 1990-99
precipitation and Palmer Drought Severity Index, PDSI, values). Lightning-caused fires were most common in Florida, where seasonally-dry winters and high lightning-flash density elevate firerisk. Overall regression models consistently identified fire season
The AA. compiled the record of wildfires from each national forest unit in the southeastern United States for the period 1989 to 1998, then regressed annual fire numbers against lightning flash densities and measures of climatic drought (seasonal
PDSI as the most influential explanatory variable in accounting for the spatial and temporal pattern of fires.
Mapping erosion risk and selecting sites for simple erosion control measures after a forest fire in Mediterranean France
Erosion control ; Forest fire ; France ; Mediterranean area ; Methodology ; Model ; Provence-Alpes-Côte d'Azur ; Risk ; Soil erosion ; Thematic map ; Var
Erosion control strategies must be established in the weeks following a forest fire to reduce fire impacts during the critical phase. The aim of this paper is to present a method used to define the location of log erosion barrages (LEBs), log debris
dams (LDDs) and grass filter strips in the weeks following a major forest fire in southeast France during the summer of 2003. The method is based, firstly, on a simple soil erosion model that identifies critical erosion zones, and secondly, on a more
detailed analysis of high risk slopes according to their potential impact on the main river channel, the value of the soil ressource to be protected, the availability of pine logs, and accessibility to the site.
A Wildland-Urban Interface Typology for Forest FireRisk Management in Mediterranean Areas
Environmental management ; Forest ; Forest fire ; GIS ; Geographical information system ; Landscape ; Landscape analysis ; Mediterranean area ; Preventive measure ; Risk ; Sierra Calderona ; Urban fringe ; Vulnerability ; firerisk ; landscape
The transitional areas that lie between wildlands and urbanized spaces, generally defined as wildland-urban interfaces (WUI), represent an increasing risk factor in Mediterranean areas; these define a new scenario in forest fire fighting
Integrating fire behavior and pedestrian mobility models to assess potential risk to humans from wildfires within the U.S.-Mexico border zone
Behaviour ; Fire ; Geographical information system ; Mexico ; Mobility ; Model ; Pedestrians ; Risk ; Trans-border area ; United States of America ; Wilderness
Seeing beyond the smoke : the political ecology of fire in Horta de Sant Joan (Catalonia)
Applied ecology ; Catalonia ; Discourse ; Ecological capital ; Forest ; Forest fire ; Political ecology ; Preventive measure ; Resilience ; Responsibility ; Risk management ; Spain
This article examines the political ecology of fire in Horta de Sant Joan (Catalonia). Through the discourse of resilience, it shows how it embraces and aspires to tinker with the turbulent and unpredictable character of nature. Embodied in GRAF
, Catalonia’s internationally renowned special fire-fighting unit, this vision faced its hour of judgment in the Horta de Sant Joan fire, when five GRAF firefighters tragically lost their lives. Although the tragedy opened an opportunity for learning
, the political processes dealing with the tragedy failed to engage with the fundamental frictions underlying forests and fires. It raises doubts about the possibility for resilience in an increasingly depoliticised public sphere.
Fire ; Risk ; Security ; Simulation ; Spatial choice ; Urban district ; Urban traffic ; Urban transport
times under various scenarios. A case study is presented for a controversial fire-prone canyon community east of Salt Lake City. GIS is used to map the spatial effects of a proposed second access road on household evacuation times.
Aborigines ; Australia ; C 14 dating ; Charcoal ; Fire ; Holocene ; Human impact ; New South Wales ; Palaeo-environment ; Palynology ; Pollen diagram
the prehistoric interrelationships between vegetation, fire and human activity. It is possible that the change in fire activity from 3 ka represented an alteration to Aboriginal management strategies associated with an increasing population and/or the increased
risk of conflagrations in an ENSO-dominated climate.
The aims of this paper are to identify what features contribute to post fire soil erodibility using field and laboratory analysis and to develop a qualitative scoring system that allows land managers to identify lands at risk of erosion in the wake
Australia ; Debris flow ; Decision making process ; Fire ; Hydro-geomorphology ; Impact ; Land management ; Model ; New South Wales ; Precipitation ; Rainfall regime ; Risk ; Water erosion ; Watershed
) timescales, the fire regime itself, and not just fire severity, becomes a variable component of the model. At this temporal scale, the catchment processes respond to variations in the frequency and severity with which a landscape is conditioned (or primed
) by fire and rain storms. The review therefore includes a discussion on fire and rainfall regimes as variables which drive decadal and regional variability in hydro-geomorphic processes.
What influences hazard mitigation ? Household decision making about wildfire risks in Arizona's White Mountains
Arizona ; Forest fire ; Household behaviour ; Model ; Multivariate analysis ; Phoenix ; Preventive measure ; Risk ; United States of America ; Vulnerability