Simulation of surface fire to study the spread rate of it`s distribution in mixed hardwood
Wildfires as one of the natural events influence forest ecosystems. Global warming and it’s effect on lengthening of dry season along with accumulation of senesced litter may couple the effects of fire in forest ecosystems. Hyrcanian forests of Iran are often bothered from the natural and also manma...
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| Format: | Article |
| Language: | fas |
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Research Institute of Forests and Rangelands of Iran
2012-05-01
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| Series: | تحقیقات جنگل و صنوبر ایران |
| Subjects: | |
| Online Access: | http://ijfpr.areeo.ac.ir/article_6100_6e6b16ccc3f4cd254fdd15880e75c156.pdf |
| _version_ | 1818442480934191104 |
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| author | Mehran Nasiri Seyed Mohammad Hojjati Mehrsedeh Tafazoli |
| author_facet | Mehran Nasiri Seyed Mohammad Hojjati Mehrsedeh Tafazoli |
| author_sort | Mehran Nasiri |
| collection | DOAJ |
| description | Wildfires as one of the natural events influence forest ecosystems. Global warming and it’s effect on lengthening of dry season along with accumulation of senesced litter may couple the effects of fire in forest ecosystems. Hyrcanian forests of Iran are often bothered from the natural and also manmade fires severely. The present study was conducted to investigate the spread rate of surface fire and the effective factors which influence on it in natural mixed forest of Chalmardi- Mazandaran, Northern Iran. The spread rate of fire was measured under different conditions which were simulated with different wind speed (1-16 m s-1), slope classes (% 0-90), species (Parrotia persica C.A.M., Acer velutinum L., Fagus orientalis L., Carpinus betulus L., Quercus castaneifolia L.) and thicknesses of leaf litter (1-8 cm). Results showed that the surface fire distributed intensively with increasing wind speed. This was also accelerated in greater slope degrees. Our findings revealed that the spread rate of fire increased with increasing litter thicknesses up to 4 cm and then decreased. The types of leaf litter influence the spread rate of fire, as leaves with small thickness (Fagus orientalis L.) and large width (Acer velutinum L.), facilitate the fire transmission to neighbor litter by bending itself and increase the spread rate of fire, and leaves with greater (Quercus castaneifolia L.) and smaller (Carpinus betulus L.) thickness reduce the spread rate of fire due to the lack of rapid transmission of fire to the neighbor litter. |
| first_indexed | 2024-12-14T18:44:49Z |
| format | Article |
| id | doaj.art-8eaed9e9fe954a35b1ef388d3f88ce1a |
| institution | Directory Open Access Journal |
| issn | 1735-0883 2383-1146 |
| language | fas |
| last_indexed | 2024-12-14T18:44:49Z |
| publishDate | 2012-05-01 |
| publisher | Research Institute of Forests and Rangelands of Iran |
| record_format | Article |
| series | تحقیقات جنگل و صنوبر ایران |
| spelling | doaj.art-8eaed9e9fe954a35b1ef388d3f88ce1a2022-12-21T22:51:24ZfasResearch Institute of Forests and Rangelands of Iranتحقیقات جنگل و صنوبر ایران1735-08832383-11462012-05-01201506110.22092/ijfpr.2012.61006100Simulation of surface fire to study the spread rate of it`s distribution in mixed hardwoodMehran Nasiri0Seyed Mohammad Hojjati1Mehrsedeh Tafazoli2M.Sc. student of Forest Engineering, Faculty of Natural Resources, Sari Agricultural Science and Natural Resources UniversityAssistant Prof., Faculty of Natural Resources, Sari Agricultural Science and Natural Resources UniversityM.Sc. student of Forestry, Faculty of Natural Resources, Sari Agricultural Science and Natural Resources UniversityWildfires as one of the natural events influence forest ecosystems. Global warming and it’s effect on lengthening of dry season along with accumulation of senesced litter may couple the effects of fire in forest ecosystems. Hyrcanian forests of Iran are often bothered from the natural and also manmade fires severely. The present study was conducted to investigate the spread rate of surface fire and the effective factors which influence on it in natural mixed forest of Chalmardi- Mazandaran, Northern Iran. The spread rate of fire was measured under different conditions which were simulated with different wind speed (1-16 m s-1), slope classes (% 0-90), species (Parrotia persica C.A.M., Acer velutinum L., Fagus orientalis L., Carpinus betulus L., Quercus castaneifolia L.) and thicknesses of leaf litter (1-8 cm). Results showed that the surface fire distributed intensively with increasing wind speed. This was also accelerated in greater slope degrees. Our findings revealed that the spread rate of fire increased with increasing litter thicknesses up to 4 cm and then decreased. The types of leaf litter influence the spread rate of fire, as leaves with small thickness (Fagus orientalis L.) and large width (Acer velutinum L.), facilitate the fire transmission to neighbor litter by bending itself and increase the spread rate of fire, and leaves with greater (Quercus castaneifolia L.) and smaller (Carpinus betulus L.) thickness reduce the spread rate of fire due to the lack of rapid transmission of fire to the neighbor litter.http://ijfpr.areeo.ac.ir/article_6100_6e6b16ccc3f4cd254fdd15880e75c156.pdfsurface firewind speedSlopelitter thicknesslitter typespread rate of fire |
| spellingShingle | Mehran Nasiri Seyed Mohammad Hojjati Mehrsedeh Tafazoli Simulation of surface fire to study the spread rate of it`s distribution in mixed hardwood تحقیقات جنگل و صنوبر ایران surface fire wind speed Slope litter thickness litter type spread rate of fire |
| title | Simulation of surface fire to study the spread rate of it`s distribution in mixed hardwood |
| title_full | Simulation of surface fire to study the spread rate of it`s distribution in mixed hardwood |
| title_fullStr | Simulation of surface fire to study the spread rate of it`s distribution in mixed hardwood |
| title_full_unstemmed | Simulation of surface fire to study the spread rate of it`s distribution in mixed hardwood |
| title_short | Simulation of surface fire to study the spread rate of it`s distribution in mixed hardwood |
| title_sort | simulation of surface fire to study the spread rate of it s distribution in mixed hardwood |
| topic | surface fire wind speed Slope litter thickness litter type spread rate of fire |
| url | http://ijfpr.areeo.ac.ir/article_6100_6e6b16ccc3f4cd254fdd15880e75c156.pdf |
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