| Fire Environment Mechanism of Lightning Fire for Daxing'an Mountains |
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| 作者姓名： | WANG Mingyu SHU Lifu TIAN Xiaorui LI Jie
Institute of Forest Protection Chinese Academy ofForestrv Forest fire management office. State Forestry Administration |
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| 作者单位： | WANG Mingyu SHU Lifu TIAN Xiaorui LI Jie
Institute of Forest Protection，Chinese Academy ofForestrv Forest fire management office. State Forestry Administration |
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| 基金项目： | Supported by Social Public Fund Project (Lightning Fire). |
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| 摘 要： | Lightning fire is one of natural fires; its mechanism is very complex and difficult to control. Daxing'an Mountain is the main region that lightning fires occur in China. Research on lightning fires indicates that special fuel, dry-storm weather and high altitude form the lightning fire environment. Lightning fires have close relation with lights. When lightning occurs, especially dry-lightning which brings little precipitation with surface temperature growing and fuel dehydrating, these often lead to lightning fires. Lightning fires have characteristics of geography, time and topography. The higher altitude forest region in Daxing'an Mountain, the more lightning fires occur. Valley with altitude above 800 m in the north of 51.N and Larix gmelinii-Pinus pumila, Pinus sylvestris var. mongolica -Pinus pumila forests on the top of mountain are the most concentrating region where lightning fires occur. One serial dry-storming can ignites many lightning fires, the furthest between them is as long as 150 km.
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Fire Environment Mechanism of Lightning Fire for Daxing'an Mountains |
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| WANG Mingyu SHU Lifu TIAN Xiaorui LI Jie
Institute of Forest Protection,Chinese Academy ofForestrv Forest fire management office. State Forestry Administration.Fire Environment Mechanism of Lightning Fire for Daxing''''an Mountains[J].中国林业科技(英文版),2003(4). |
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| Authors: | WANG Mingyu SHU Lifu TIAN Xiaorui LI Jie
Institute of Forest Protection Chinese Academy ofForestrv Forest fire management office State Forestry Administration |
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| Abstract: | Lightning fire is one of natural fires; its mechanism is very complex and difficult to control. Daxing'an Mountain is the main region that lightning fires occur in China. Research on lightning fires indicates that special fuel, dry-storm weather and high altitude form the lightning fire environment. Lightning fires have close relation with lights. When lightning occurs, especially dry-lightning which brings little precipitation with surface temperature growing and fuel dehydrating, these often lead to lightning fires. Lightning fires have characteristics of geography, time and topography. The higher altitude forest region in Daxing'an Mountain, the more lightning fires occur. Valley with altitude above 800 m in the north of 51.N and Larix gmelinii-Pinus pumila, Pinus sylvestris var. mongolica -Pinus pumila forests on the top of mountain are the most concentrating region where lightning fires occur. One serial dry-storming can ignites many lightning fires, the furthest between them is as long as 150 km. Lightning fires often occur in June-August, and the time period that lightning fires occur most is 14-17 p.m. Since lightning is stochastic, it is very difficult to prevent and put out lightning fires. We need to improve methods of lightning fires forecasting, monitoring and extinguishing. |
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| Keywords: | forest fuel fire resource dry storm lightning fire weather |
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