06-30-2009
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#22 (permalink)
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Creating
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North of Sydney Australia
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Re: Do plants make rain?
[quote] Where giant plants dare to grow
Quote:
. . .
Species growing at the equator are around 30 times taller on average than those at high latitudes, they found.
Their analysis also shows that rainfall has a bigger influence on plant height than temperature or soil fertility.
. . .
Instead, the single best predictor of plant height was how much it rained during the wettest month of the year.
"It might seem obvious that plants are taller in the tropics, a. . .
"However, there are plenty of tropical ecosystems that are dominated by short plants, such as savannas, and plenty of high-latitude ecosystems that are dominated by very tall plants, such as boreal forests."
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"Instead there turns out to be a remarkable scarcity of very short plants in very warm, wet, productive environments like rainforests."
"We hadn't predicted this
What's more, she points out, the tallest plants in the world do not grow in the tropics.
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BBC - Earth News - Where giant plants dare to grow
Which came first the chicken or the egg? |
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