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But Sillett said placing sprinklers around the sequoias in Yosemite isn't really necessary. "The main thing they are doing with sprinklers is appeasing the public, who are worrying about how ugly the area will look when they visit later and that some trees are going to die," he said. "The big trees are going to be fine," Sillett explained. "Smaller, weaker, non-giant sequoias will die, but it's not so much that they are protecting the trees." Sillett said full-grown sequoias are adapted to survive even the hottest wildfires. They have fibrous, fire-resistant bark that can grow up to two feet thick. Although fires can damage the biggest trees, they usually don't kill them.
Forest managers have not been able to conduct controlled burns in places where too many people live nearby, such as Calaveras Big Trees State Park and Mountain Home Demonstration State Forest. Instead, scientists take a combined approach. They selectively prune and log dead and dying trees and then stack up the wood and burn it in controlled piles. "Giant sequoias are flourishing in response. They love it," said Sillett. (See pictures of scaling sequoias.) How Fire Benefits Sequoias Schoolchildren often learn that sequoias benefit from fire because the heat makes their cones open up, the flames eliminate competing plants, and the ash serves as fertilizer. The relationship is actually a bit more complex. "It's not like sequoias need fire to spread their seeds, but they live in a fire-prone environment, and they know what they're doing," he said.
Originally posted by Happy1
reply to post by ForbiddenDesire
I wanted to add that some species of animals, plants, ect. die off in nature's way - then stupid man comes and tries to save things, or clone dinosaurs? - isn't there a very good reason they are extinct?edit on 28-8-2013 by Happy1 because: (no reason given)