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According to the passage, soil erosion ----.
Wildfires are an important environmental hazard in
many geographical areas. Those areas most prone to
wildfires have wet seasons followed by dry seasons.
Vegetation that grows and accumulates during the
wet season dries out enough during the dry season
to burn easily. When lightning hits the ground, it
ignites the dry organic material, and a fire spreads
through the area. Actually fires have several effects
on the environment. First, burning frees the minerals
that are locked in organic matter. The ashes
remaining after a fire are rich in potassium,
phosphorus, calcium, and other minerals essential for
plant growth. Thus, vegetation flourishes following a
fire. Second, fire removes plant cover and exposes
the soil, which stimulates the germination of seeds
requiring bare soil, and encourages the growth of
shade-intolerant plants. Third, fire can cause
increased soil erosion because it removes plant
cover, leaving the soil more vulnerable to wind and
water.
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is undoubtedly the most adverse effect that wildfires have on areas where plant cover is thick due to heavy vegetation |
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can happen in an area which, due to wildfires, has lost its plant cover, whereby the soil has become exposed to wind and water |
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can be prevented in areas prone to wildfires just as strict measures are taken to maintain adequate plant cover |
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extensively undermines environmental sustainability because it not only removes plant cover, but also prevents plant growth |
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is mainly caused by wind and water, which destroy the plant cover of an area and turn the area into an arid land |