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- 1541591
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- 2023-4-3
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- 1970-1-1
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单词:
conifer 针叶树,一种树
mitigation 缓解
postfire logging 火灾后伐木
detrimental 有害的
seedling 幼苗
hectare 公顷
coarse 粗糙的
notably 特别地
congruent 合适的(方法)
preclude 排除
主旨:by presenting historic data, the author argues that postfire logging can be counterproductive and active reforestation efforts may be unnecessary.
P1: postfire logging increases the fire risk and thus is counterproductive to the goal of forest regeneration and fuel reduction
P2: Contrary to the traditional view that post postfire logging diminishes the fire risk and that forests will not regenerate without intervention, the author holds that postfire logging is detrimental to long- term development.
P3: The contrast of logged and unlogged areas in two years after a fire
P4: A data shows that postfire logging will not achieve the goal better than natural regeneration will.
P5: postfire logging will aggravate the impact on reburn in the fine and coarse woody fuel loads
P6: fuel reduction treatments, including prescribed burning and mechanical removal, are used to mitigate the short-term fire risk. The former method is most feasible but will bring side effects, and the second method is too expensive to enact. Therefore the best way to reduce the fire risk is to leave dead trees standing and far away from surface flame.
P7:data presented to show postfire logging can be counterproductive and forest regeneration is not necessary.
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