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America's forests: 1999 health update

Author: U.S. Department of Agriculture, Forest Service
Date: 2000
Periodical: Agriculture Information Bulletin 757. U.S. Department of Agriculture, Forest Service
Abstract: This report provides a summary of forest ecosystem health issues in America’s forests. There are seven general concerns that have not changed from previous years: Forest wildfire threat (fuel-live and dead vegetation-buildups), invasion of exotic (nonnative invasive) pests, wildland/urban interface, loss of biodiversity, air pollution, degraded riparian areas, and changed ecological conditions.