| 释义 |
Definition of crown fire in English: crown firenoun A forest fire that spreads from treetop to treetop. 树冠火 Example sentencesExamples - When that happens, a crown fire breaks out, and the forest can burn with destructive intensity.
- Sometimes a rapid crown fire singes pine cones hut the seeds inside are protected.
- This was an era of very limited fire suppression, and yet like today, large crown fires covering tens of thousands of acres were not uncommon.
- But these upland areas were susceptible to lightning strike and crown fires may have spread rapidly.
- In Canada's boreal forests, fire regimes are generally characterized by high-intensity crown fires that initiate secondary-succession processes in the burnt areas.
- High fire-induced mortality in these forests could result from either high intensity crown fire or lower intensity surface fire.
- When crown fires sweep through these forests, the public takes notice.
- In the West, where fires are more apt to crown (or burn in the treetops rather than stay to the ground) firelines as wide as Interstate highways frequently are rendered useless because of the intense conditions of crown fires.
- This high-intensity crown fire killed almost all trees in the area, leaving only small patches of unburned forest.
- Flames, which boiled in the crowns of Douglas fir and ponderosa pines, catapulted forward on heavy winds partly of the fire's own making-a classic crown fire.
- But dead wood and saplings serve as a ladder for surface fires to climb into the canopy, where they become the blast furnace of wildfires: the crown fire, in which temperatures surge beyond 1,800 degrees Fahrenheit.
- In these crowded stands, trees become increasingly susceptible to attack by insects and pathogens, blowdowns in storms, and catastrophic crown fires as live and dead forest fuel builds up.
- When flames get that large, the resulting crown fires can kill mature ponderosa pines that have survived less intense surface blazes.
Definition of crown fire in US English: crown firenoun A forest fire that spreads from treetop to treetop. 树冠火 Example sentencesExamples - But dead wood and saplings serve as a ladder for surface fires to climb into the canopy, where they become the blast furnace of wildfires: the crown fire, in which temperatures surge beyond 1,800 degrees Fahrenheit.
- Flames, which boiled in the crowns of Douglas fir and ponderosa pines, catapulted forward on heavy winds partly of the fire's own making-a classic crown fire.
- When that happens, a crown fire breaks out, and the forest can burn with destructive intensity.
- When crown fires sweep through these forests, the public takes notice.
- But these upland areas were susceptible to lightning strike and crown fires may have spread rapidly.
- High fire-induced mortality in these forests could result from either high intensity crown fire or lower intensity surface fire.
- In the West, where fires are more apt to crown (or burn in the treetops rather than stay to the ground) firelines as wide as Interstate highways frequently are rendered useless because of the intense conditions of crown fires.
- This high-intensity crown fire killed almost all trees in the area, leaving only small patches of unburned forest.
- In these crowded stands, trees become increasingly susceptible to attack by insects and pathogens, blowdowns in storms, and catastrophic crown fires as live and dead forest fuel builds up.
- Sometimes a rapid crown fire singes pine cones hut the seeds inside are protected.
- This was an era of very limited fire suppression, and yet like today, large crown fires covering tens of thousands of acres were not uncommon.
- In Canada's boreal forests, fire regimes are generally characterized by high-intensity crown fires that initiate secondary-succession processes in the burnt areas.
- When flames get that large, the resulting crown fires can kill mature ponderosa pines that have survived less intense surface blazes.
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