When the fire truck arrived the fire was strong and the trees were still burning. This continued until the whole forest was burnt to the ground and had to
be.....................( replant)
Answers
Answer:When a fire sweeps through a forest, or a lumber company strips an area of all of its trees, the greenery will eventually grow back. Or so many forestry researchers thought. But a new study in the tropics suggests that these second-growth forests can look very different from what they replaced—a finding that may cause biologists to wonder what biodiversity will be restored and forestry experts to reconsider how much they should or can intervene in the regrowth.
“There’s a high degree of random effects” in what comes back, says Jefferson Hall, a forest ecologist at the Smithsonian Tropical Research Institute in Panama who was not involved with the work. “It’s a very important study.
When a forest is burned or cut down and farmed temporarily, that land tends to undergo a series of changes. Some pioneer plants will quickly take hold, gradually changing the landscape—how much the ground is shaded and the soil composition—such that a new set of plants will thrive there. This in turn creates yet another set of conditions that eventually allows for the return of the forest. For a long time, ecologists have thought this process, called succession, followed a fairly preordained course such that the same trees ultimately dominated the landscape once again. But they have been limited by imperfect evidence. Not likely to get funding for a 200-year-long study, plant ecologists have examined succession by studying regrowth in plots where original forests that had been cut down at different times, an approach called chronosequencing.
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