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Title: D3.1-10 Fire occurence: relationships with fuel moisture content and remotely-sensed plant phenology data: final results (merged with D3.1-9) /
Language: English
Description: Fire is a basic ecological factor that contributes to determine vegetation diversity and dynamics in time and space. Fuel characteristics play an essential role in fire ignition and propagation; at the landscape scale fuel availability and flammability are closely related to the vegetation phenology that directly affects wildfire pattern in time and space. In this view, the annual NDVI profiles derived from high temporal resolution satellites, like SPOT Vegetation, represent an effective tool for monitoring the coarse-scale vegetation seasonal timing. The objective of this study thus consists in quantifying the explanatory power of multitemporal NDVI profiles on the fire regime characteristics of the potential natural vegetation (PNV) types of Sardinia (Italy) over a five-year period (2000-2004). The results obtained show a good association between the NDVI temporal dynamics of the PNV of Sardinia and the corresponding fire regime characteristics, emphasizing the role of the bioclimatic timing of the vegetation in controlling the coarse-scale wildfire spatio-temporal distribution of Sardinia. By providing a sound phytogeographical framework for describing different wildfire regimes, PNV maps can thus be considered helpful cartographic documents for fire management strategies at the landscape scale.
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Title: D4.1-1a Spatial and temporal statistics on wildfire regimes across Europe /
Language: English
Description: An assessment was made of the spatial and temporal distribution of fires in different areas in Italy, Switzerland, Greece and Portugal. In this first stage of analysis on fire selectivity, we focused solely on fire ignitions without taking into account the corresponding burned areas. The development of appropriate statistical methods for computing the strength of association between the burned area of wildfires and land cover classes on a coarse-scale basis will be the subject of additional work. The analyzed data sets are composed of: (i) 13377 fire records in Sardinia (Italy) during the period 2000-2004, (ii) 1331 fire records in the Cantons of Ticino, Graubuenden and Uri (Switzerland) during the period 1982-2005, (iii) 250 fire records in the Chalkidiki Peninsula (Macedonia, Greece) during the period 1985-1997, and (iv) 3023 fire records in the Coimbra Region (Portugal).
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Title: D4.1-1b Publication describing wildfire regimes distribution in selected European study areas /
Language: English
Description: The deliverable is composed of four studies for different regions: (1) Analysis of the fire occurrence in the phytoclimatic regions of Sardinia; (2) Analysis of fire occurrences in the vegetation zones of Macedonia, Greece; (3) Assessing the relative fire proneness of different forest types in Portugal; (4) Selective burning of forest vegetation in Canton Ticino (Southern Switzerland).
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Title: 4.1-2b-39 Publication on the fire proneness of different land use classes in selected European study areas /
Language: English
Description: This study investigated the fire proneness of different land use classes with specific reference to a case study for the whole of Portugal, and then investigated the relationships between ignitions and land cover for three selected European study areas: (1) Sardinia, Italy; (2) Coimbra District, Portugal; (3) Cantons of Ticino, Graubuenden and Uri, Switzerland.
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Title: Comportamiento del fuego en un pastizal del sitio ecológico ‘media loma’, región chaqueña occidental (Argentina) / Fire behaviour in grassland ecological site 'media loma', western Chaco region (Argentina)
Language: Spanish
Description: Fire behavior, considered a part of fire ecology, is together with fire prevention one of the two components of the ´fire triangle´ currently used as a basis for fire management and control. We assessed the fire behavior in a grassland located in the midland range ecological site in the Chaco region, northwestern Argentina. The site of the experiments was the ´La María´Experimental ranch, INTA Santiago del Estero Research Station, (28º 03’ S 64º 15’ E). Fire was applied in two study sites in 6 plots each. Fine fuel load, botanical composition, and fine fuel bulk density were estimated by sampling. Fire behavior was assessed by estimating forward rate of spread and flame length. These data were analysed using ANOVA with study site as independent variable. Correlation among variables was assessed using the Kendall’s ô correlation coefficient. Study sites presented a different botanical composition: plots were either dominated by Trichloris pluriflora (E.) Fournier, or by Pappophorum pappipherum (Lam.) Kuntze. Plant of these species possess different proportion of stems and leaves. These facts significantly affected fine fuel load, bulk density (p > F = 0,0001 in both cases) and the forward rate of spread (p > F = 0.0001). The latter was 27,62 m*min-1 in study site 1, where the first species dominated; and 21 m*.min-1 in study site 2, where the second dominated, respectively. Average flame length was 3,5 m, but reached 6 m when volatile shrubs ignited and participated in the propagation of fire. Correlations among forward rate of spread and fuel load with bulk density was positive and significant (p < 0,0001), but was not significant in the case of flame length. Fires were of high intensity and move fast and need blacklines or other indirect measures for control.
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