Temperature Distribution Around Synthetic Trees During Grass Fires
Heat from grass fires may be partitioned differentially around tree boles and cause different degrees of injury which may be manifested as localized bark charting or fire scars. To study heat partitioning, and to avoid many of the field problems such as asymmetric fuel distribution around trees, four cylinders (diameter 7, 17, 27, and 34 cm and length 3.5 m) were constructed, covered with woven asbestos, and subjected to grass fires in a former woodland community in northeastern Australia. Between the layers of asbestos cloth 24 thermocouples, at six heights and four aspects on each cylinder, were used as temperature sensors. Temperatures recorded during the fires were related to fuel, fire behavior, and environmental variables. Maxima (in time) were greatest at heights of 40 cm on the leeward aspects of the cylinders. The pattern of temperature distribution around large diameter cylinders was more predictable than that around small cylinders. Predictions of the damage to real trees in a forest is the ultimate aim of this research. Forest Sci. 22:269-276.
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Document Type: Journal Article
Affiliations: Division of Plant Industry, CSIRO, P.O. Box 1600, Canberra City, Australia
Publication date: 1976-09-01
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Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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