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Fire regimes of United States plants. Savannas have regimes of a few years: blue, pink, and light green areas. When first encountered by Europeans, many ecosystems were the result of repeated fires every one to three years, resulting in the replacement of forests with grassland or savanna, or opening up the forest by removing undergrowth. [23]
A County Public Works director, Mark Pestrella, reported "significant damage" to Los Angeles county's sewer systems in addition to its power and transportation systems, each due to massive amounts of debris and thousands of felled trees caused by the fires and corresponding windstorm. [257]
Fire suppression, in combination with other human-caused environmental changes, may have resulted in unforeseen consequences for natural ecosystems. Some large wildfires in the United States have been blamed on years of fire suppression and the continuing expansion of people into fire-adapted ecosystems as well as climate change . [ 5 ]
Instead of fire-hardening the park, the city — which the state said had undertaken the work without proper permitting — ended up paying $2 million in fines and was ordered by the California ...
About 95% of fires in California are caused by humans, whether through an intentional act of arson, a downed power line, or a backyard barbeque party or fireworks celebration gone awry, Cal Fire ...
The causes that sparked the fires are under investigation, and the scientists noted that because there are no natural ignition sources this time of year, the fires were almost certainly started by ...
For example, trees evolved with fire-embracing traits can "sacrifice" themselves during fires. But they also cause fires to spread and kill their less flammable neighbors. With the help of other fire adaptive traits such as serotiny, flammable trees will occupy the gap created by fires and colonize the habitat. [20] [21]
The Palisades Fire, the biggest and most destructive wildfire in Los Angeles history, has “human origins” as a likely cause, according to a new report. Authorities investigating the cause of...