A new study has revealed that trees live perilously close to the limits of their inner plumbing systems.
Out of several hundred tree species, up to 70 percent live with the risk that a serious drought would prevent water from being transported from their roots to their leaves. Even in wet, tropical regions the trees maintain a precarious balance that if interrupted could prove disastrous. The find emphasizes just how vulnerable our forests are to changes in the climate.
"I think this is a really big deal," said ecologist David Breshears. "We’ve been trying to be careful as a community not to be alarmist [but] our forests are really vulnerable." Given that 30 percent of the Earth's land is covered in forests and the important role that these play in maintaining the environment, it is vital that we do what we can to protect the world's trees while we still have them.
"Trees in most forests, even wet ones, live perilously close to the limits of their inner plumbing systems, a global survey of forests finds."
View: Full article | Source: Science News
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