Drought, fire management and land use changes have led to denser forests in California

(Phys.org)—A team of researchers with members from several institutions in the U.S. has found that compared to the beginning of the last century, California's forests are more dense, with fewer large trees, more small growth and are a much bigger risk for fires. In their paper published in Proceedings of the National Academy of Sciences, the researchers describe how they compared forest surveys over the past century and the changes they noted and what it might mean for the future of forest management in the state.

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