Big trees are disappearing from the face of the planet. Scientists brought up more signs showing that climate change and global warming are serial killers, and their victims, are also trees.
A research published in the in the publication, the Proceedings of the National Academy of Science, has been studying the changes happening in among large trees, species of 2 feet in diameter or more. The notes followed studies of the trees from 1920 to 1930 and the first ten years of this century.
The research included all California, and arrive to the conclusion that all the regions have suffered serious decline in the number of trees. Up to 75% of the big trees had died in southern regions of the state. The killer of the trees is suspected to be the climate change and global warming, as bigger trees are more sensitive to drought than the smaller ones. One of the other causes would be the human activities of cutting down the trees.
However, researchers have stated that in national parks logging is prohibited. The most dramatic loss has been in the souther parts of California, because these regions has been dealing with drought for longer periods of time. The smallest death rate in big trees, appeared to be up north in the state, where the drought has been less severe and damaging.
The results are disturbing, as some of the most known species of big trees in California, are disappearing one by one. Redwoods and ponderosa pines are among the big trees dying as we speak. The older big trees are dying because of a certain disease, logging, drought, or many other factors, but what is worrying is that this is happening all around the state. One of the explanations, would be lack of water, explained leader of the study Patrick McIntyre, from the University of Berkley California.
The smaller trees keeping increasing their numbers in forests, and trees like oaks, are becoming more preponderant as pines keep on declining, added, study leader Patrick McIntyre.
Researchers can’t say for sure why bigger trees are more affected by drought, but they assume it has to do with the fact that they need more water than the smaller ones in order to survive disease and drought.
Big trees are extremely important contributors to keeping the air clean of carbon dioxide. The continuous disappearance of big trees could be catastrophic for the atmosphere as it was hoped that big trees forests would manage to soak up certain qualities of carbon emission.
Unfortunately this process will keep of evolving and it cannot be stopped. By 2100, temperatures should be higher with 5% and the water supplies reduced with 30%.
Image Source: Kathy Scott Licensing
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