This chapter presents some of the ways human activities have changed western fire regimes. The fire suppression policies of federal agencies resulted in a heavy accumulation of fuels in forests. One example is fire-suppression fuel buildups based on the study of ponderosa pine forests. In other ecosystems, suppression policy plays only a minor role in creating fires. The major anthropogenic factors that cause changing fire regimes are: global climate change, unrestrained development in the wildland-urban interface, inappropriate logging and grazing practices, and the introductions of nonnative species.
Keywords: human activities; fire regimes; fire suppression; fuel buildups; climate change; logging; grazing; nonnative species
Chapter. 6783 words. Illustrated.
Subjects: Animal Pathology and Diseases
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