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a conduct of the management of public forests after large fires—postfire logging: beneficial or detrimental?
this passage cited data to get an answer: an example with statistics
--> of conifer regneration (能增加吗？) & fuel loads （能减少吗？）
Figure A: conifier regeneration
areas after large fire with no reforestion efforts (比如此文的讨论对象 postfire logging) are better for regeneration than those with efforts <-- detrimental --> - soil diturbance
- physical burial by woody material during logging operations
Figure B: fuels reduction
a. increase not reduce
b. logging alone cannot work. subsequent treatments are needed to reduce the fire risk 转折 BUT --> implementing these treatments is also problematic (不干没有效果，干了也有别的方面的副作用):
<-- detrimental -->
- additional seedling mortality
- potentially severe soil impacts
Conclusion:
a. the answer to the question beforehead—detrimental (counterproductive to its goals) -->
- in removing naturally seeded conifers
- increasing surface fuel loads
b. forest regneration is possible in some areas and postfire logging is not constructive as believed by people but conflict with ecosystem recovery goals |
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发表于 2022-8-18 00:03:40
