2004
DOI: 10.1071/wf03063
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A comparison of thermocouples and temperature paints to monitor spatial and temporal characteristics of landscape-scale prescribed fires

Abstract: A method to better monitor landscape-level fire characteristics is presented. Three study areas in southern Ohio oak-hickory (Quercus-Carya) forests were established with four treatment areas of ~20 ha each: control (C), burn only (B), thin only (T) or thin plus burn (TB). Two independent measures useful for qualitatively characterising fire intensity were established on a 50-m grid, resulting in over 120 sampling locations at each site, in the burned areas: aluminum tags painted with temperature-sensitive pai… Show more

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Cited by 72 publications
(45 citation statements)
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“…When overstory thinning is done to increase residual tree growth or to aid in developing woodland/savanna structure, subsequent fires usually increase the percent of trees scarred due to increased fuel loading from the thinning [74]. However, a previous paper [84] found that burning immediately after thinning in upland mixed-oak forests, before the newly added fuels had cured, actually reduced fire temperature, rate of spread and, hence, intensity. When heavy fuels from shelterwood harvesting are allowed to cure, e.g., 2 to 4 years, before prescribed burning, then severe mortality and bole damage is probable when heavy slash is within 1 m of the boles of oaks, hickories and yellow-poplar [76].…”
Section: Bole Wounding and Decaymentioning
confidence: 92%
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“…When overstory thinning is done to increase residual tree growth or to aid in developing woodland/savanna structure, subsequent fires usually increase the percent of trees scarred due to increased fuel loading from the thinning [74]. However, a previous paper [84] found that burning immediately after thinning in upland mixed-oak forests, before the newly added fuels had cured, actually reduced fire temperature, rate of spread and, hence, intensity. When heavy fuels from shelterwood harvesting are allowed to cure, e.g., 2 to 4 years, before prescribed burning, then severe mortality and bole damage is probable when heavy slash is within 1 m of the boles of oaks, hickories and yellow-poplar [76].…”
Section: Bole Wounding and Decaymentioning
confidence: 92%
“…However, large oak seedlings and saplings are better able to persist with repeated burning than their major competitors [81]. In general, oak species have a distinct advantage over competitors for surviving fire because they preferentially allocate carbohydrates to root growth and have an abundance of dormant buds commonly located in the soil where they are insulated from the heat of a fire [19,66,84,92,93]. Nonetheless, oak stems < 10 cm dbh are susceptible to top-kill, but the larger stems have a high capacity to persist by sprouting [94], especially when there is adequate light for growth during the fire-free period.…”
Section: Tree Speciesmentioning
confidence: 99%
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“…Across all sites, fires in the burn treatment exhibited slightly greater coverage (area burned) and intensity than the thin + burn treatments because the skidder trails and uncured slash interrupted the spread of fire across thinned stands (Iverson et al, 2004a). For a more complete description of fire behavior, see Iverson et al (2004b).…”
Section: Treatmentsmentioning
confidence: 99%
“…Fires were heterogeneous within and across sites, but flame lengths rarely exceeded 2 m in height. Based on fire behavior data collected at geo-referenced gridpoints from all study sites, the mean rates of spread ranged from 6.2 to 11.3 m/min (Iverson et al, 2004b). Fires consumed unconsolidated leaf litter while 1-h woody fuels were occasionally consumed.…”
Section: Treatmentsmentioning
confidence: 99%