The second stressor results from forest fires, some of which are caused by arson. The KKL no longer runs in to replant burnt forests immediately. The current thinking is to allow the forest the opportunity to regenerate over five years from the seedbank (mature seeds that have fallen to the ground and are buried in the soil). Conifers regenerate first and supply the necessary canopy layer for the understory broadleaf trees. This understory layer needs to be shielded by the conifers in order to grow and thrive.
Therefore, as the conifers regrow from seed, some of the burnt understory trees whose roots are still alive – oaks, pistachios, and arbutus – can regrow from those roots.
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Thank you.