Fire history of a ponderosa pine/Douglas fir forest in the Colorado front range
Biogeography ; Colorado ; Dating ; Fire ; Forest ; Forestry ; Mountain ; United States
The main objectives of this study are : 1) to characterize the fire regime of an area of montane forest in the Colorado Front Range; and 2) to compare the utility of the different methods of dating fires in these forests.
This paper's hypothesis is that, just as summer climate warming in Canada has produced dramatic increases in the number and total area of forestfires, so tool will any increase in summer temperatures in Fennoscandia. If this is so, complacency
concerning the current low level of forestfires in Fennoscandia is misplaced. Likewise, temporal variations in forest have induced important changes in Canadian landscapes, and the same may be true of Fennoscandia if increased forestfire occurrence
Fire history and tree recruitment in an uncut New England forest
Biogeography ; Dating ; Dendrology ; Drought ; Fire ; Forest ; New England ; Pine ; United States of America
This paper describes the fire history of the Battell Research Forest (BRF), in Vermont, recorded by the age distributions of living and dead trees and by fire scars. The results illustrate a fire cycle that has controlled the recruitment
and mortality of most pine and probably most hemlock trees in this forest over the past 500 yr.
Spatial patterns of fire occurrence in the central Appalachian Mountains and implications for wildland fire management
Appalachian Mountains ; Ecosystem ; Environmental management ; Forest ; Forestfire ; Forestry ; Human impact ; Resource management ; Seasonality ; Spatial variation ; United States of America ; Virginia
The AA. investigate spatial variations in the incidence of anthropogenic and natural (lightning-ignited) fire in the central Appalachian Mountains of Virginia and West Virginia using a record of wildland fires that occurred on federal lands between
1970 and 2003. A consideration of spatial variability in wildland fire is important for allocating fire-suppression resources and for informing resource managers who use naturally ignited wildland fires or prescribed fires in ecological restoration
efforts and fuel reduction treatments. The AA. compare ignition density, maximum fire size, and fire cycle in the 3 physiographic provinces of this region.
Fire weather in Israel - Synoptic climatological analysis
Applied climatology ; Forestfire ; Israel ; Mediterranean area ; Moisture ; Natural hazards ; Spatial distribution ; Synoptic climatology ; Temperature ; Wind
This study analyzes the characteristics of fire weather in Israel throughout the years 1987-1995. The objectives are to study the different synoptic situations during forestfires and their relationship to the temporal and spatial distribution
of the fires, and to analyze the weather conditions during the fire days and their correlation with the expansion of the fires.
The forestfires in Indonesia 1997-98 : possible causes and pervasive consequences
Biodiversity ; Drought ; Ecosystem ; El Niño ; Forest ; Forestfire ; Health ; Human impact ; Impact ; Indonesia ; Monsoon ; Pollution ; Tropical rain forest
The recent (September 1997 to June 1998) forestfires in Indonesia represent an unprecedented ecological disaster. This article describes recent events, evaluates the possible natural and human causes of the fires, and surveys the possible
Current approaches to modelling the spread of wildland fire : a review
Ecosystem ; Environmental management ; Forecast ; Forestfire ; Geographical information system ; Model ; Remote sensing
This article reviews some of the important trends in modelling fire behaviour and the likely directions of future research. A consideration of such fire behaviour models is important because they form the basis of many contemporary fire and resource
management models. Fire spread models may be divided into 2 broad classes : those concerned with the quantification of fire behaviour through the prediction of parameters such as rate of spread and fireline intensity, and those concerned with the prediction
of the final shape of a fire event. Both types are considered and also the potential applications of GIS and remote sensing technologies.
Fire severity, water repellency characteristics and hydrogeomorphological changes following the Christmas 2001 Sydney forestfires
Australia ; Comparative study ; Forest ; Forestfire ; New South Wales ; Remote sensing ; SPOT ; Soil erosion ; Soil properties ; Soil water ; Sydney ; Water quality ; Watershed
For 2 sub-catchments with differences in fire severities in Nattai National Park, south-west of Sydney, this paper considers : 1) the links between fire severity based on SPOT image analysis and ground observations of fire severity and repellency; 2
) the textural and organic/minerogenic characteristics of eroded sediment; and 3) erodibility, erosion and deposition of soils in both catchments. The fire did not trigger major geomorphological change in the study area, but fires probably cause important topsoil
The contemporary fire regime of the central Appalachian Mountains and its relation to climate
Appalachian Mountains ; Drought ; Fire ; Forest ; Forestfire ; Human impact ; Mountain ; Natural hazards ; United States of America ; Vegetation dynamics ; Virginia
This paper uses records of wildland fire to investigate the contemporary fire regime on federal lands in the central Appalachian Mountains of Virginia and West Virginia. During the study period (1970-2003), 1557 anthropogenic fires and 344 natural
fires occurred on these lands. Anthropogenic fires burned more area than natural fires and consequently they had a shorter fire cycle. The dry conditions of spring and fall were especially favorable for burning. Moreover, on an interannual level, drought
had a strong influence on the amount of fire activity.
Relationships between forestfire and hill-slope hydrology in the Selva region of Catalonia are studied. This paper summarises the results of about 150 rainfall simulation experiments and presents an overview of work carried out so far.
analyzed to reconstruct the long-term fire history of an old-growth deciduous forest in southern Québec. AMS radiocarbon dates from 16 charcoal fragments indicated that forestfires were widespread during the early Holocene, whereas no fires were recorded
The AA. used botanically identified and radiocarbon-dated charcoal macrofossils in mineral soils as a paleoecological tool to reconstruct past fire activity at the stand scale. Charcoal macrofossils buried in podzolic soils by tree uprooting were
Fire history of mixed-conifer forests on the North Rim, Grand Canyon National Park, Arizona
Altitude ; Arizona ; Biogeography ; Canyon ; Dendrochronology ; Dendrology ; Ecotone ; Forest ; Forestfire ; Historical geography ; United States of America ; Vegetation dynamics
This study uses dendrochronology and historical fire records to determine the fire history of mixed-conifer forests along an elevation and temporal gradient. The research constitutes a component of a broader mixed-conifer project that investigates
disturbance and age structure by elevation over time on the North Rim of the Grand Canyon National Park in Arizona. Specifically, long-term fire histories were reconstructed in order to compare fire frequency during 3 eras : pre-Euro-American settlement (prior
to 1870), settlement (1870-1919), and fire suppression (1920-1995), and for 3 elevation zones.
diversity. The fire-prone ecosystems of mediterranean-type shrublands and heathlands, savannas and grasslands, and boreal and other coniferous forests are the main geographic focus of the paper.
The focus of this paper is on the occurrence of fire in fire-prone ecosystems, in which plant species have evolved fire-survival and/or fire-persistence traits that may even be necessary for the continued existence of the vegetation community
Runoff and erosion processes after a forestfire in Mount Carmel, a mediterranean area
Forestfire ; Israel ; Mediterranean area ; Mountain ; Rill wash ; Sediment budget ; Soil erosion ; Water erosion
In the mediterranean forest area of Israel, fires increase runoff and sediment yield rates relative to undisturbed forested land. This study aims to : 1) determine the rates of water runoff and sediment yield from burnt slope sites, related
Effect of fire on soil, rice, weeds and forest regrowth in a rain forest zone (Côte d'Ivoire)
Agricultural practice ; Agropedology ; Fire ; Forest ; Geochemistry ; Ivory Coast ; Rice ; Soil ; Soil properties
Forest, soil, rice, weeds and regrowth were studied in the fields off local farmers in permanent plots during 2-5 years. The fields covered all currently cultivated soil types and forest types. This study is concerned with the full shifting
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-fireforest 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
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
statistic that quantifies hotspot areas of fire risk 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
and accessibility factors were used in a multivariate statistical framework. Results suggested a clear variation in hotspots of fire occurences among districts.
Modelling wild fires in the mediterranean region : a geographical tool for monitoring the problem. A case study for Southwest-Messinia (Peloponnese, Greece)
Fire ; Forestfire ; Geographical information system ; Greece ; Mediterranean area ; Model ; Natural hazards ; Peloponnese ; Remote sensing ; Statistics ; Thematic map ; Years 1980-89 ; Years 1990-99
The aim of this study is to model the wild fire behaviour in the Eparchy of Pylias (Southwest-Messinia, Greece), and more specific to acquire more knowledge about the wild fires control problem as it concerns the fire frequency and the possibility
of fire spreading. A hazard model is set up based upon a combination of remote sensing techniques and a GIS. A multi source data is used, comprising cartographic documents, meteorological data, satellite imagery and statistical information about the fire
history of the region (1978-1996). A thematic study is performed for each of the controlling factors and a hazard map for fire occurrence is obtained.
wildfire at the end of summer 1988. The results suggest that light and moderate forestfires may increase soil fertility without cousing a marked difference in soil runoff and erosion.