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ŠUMARSKI LIST 11-12/2013 str. 32     <-- 32 -->        PDF

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Summary:
The Mediterranean ecosystems are affected by human activity, and the present situation is largely a result of intensive human activities and natural changes. Meteorological parameters were having a great impact on the fires. As fires are a natural phenomenon, they are small scale with minor damage can be interpreted as a dynamic natural processes. But the number of forest fires, and thus the size of the burned area, have drastically increased in recent decades. The vegetation of the Mediterranean is specific in many ways, including by cause-and-effect relationship with the forest fires. Specifically, each vegetation type has its own fire regime, and features such as fire interval, the average annual burnt area and severity (intensity of fire). Mediterranean forests are generally poor in terms of the number of species represented. Monodominant are, and as such are easily flammable and subject to the spread of fire from a mixed forest with a large number of species. This paper describes the variation of flammability (ID) major tree species of the Mediterranean area and are presented to estimate the effect of meteorological factors on the above variables. Research was conducted on Teaching Experimental Forest Object Rab Faculty of Forestry, University of Zagreb, and in an experimental laboratory for the protection of forests against fire in Makarska. Tests were carried out in the period of June 2007. until June 2009., one month per location. The results were confirmed by differences in delay between the flammability species tested at all sites, as well as the location of the species tested. The mean delay flammability of all kinds at both sites was 10.60 seconds. The results based on laboratory testing show that they can be directly used in the description and prediction of forest fire when it comes to the flammability of natural fuels in actual site conditions.
Key words: flammability, forest fires, meteorological factors, Mediterranean