by DJ Nowak, EJ Greenfield

USDA Forest Service, Northern Research Station, Newtown Square, PA


This report is an update of the first national assessment of urban forests in the United States, published in 2000 in accordance with the Forest and Rangeland Renewable Resources Planning Act of 1974. Here, higher resolution Landsat data were used to assess the current status of urban forests in each state. This report covers the west coast states of California, Oregon, and Washington individually. For each state, statistics on, e.g., population, land cover, green space, and tree cover are presented in tabular, narrative, and figure form. Urban tree benefits in the form of carbon stored and sequestered and air pollutants removed are given and described. Trends between 1990 and 2000 are discussed.

Region: California, Oregon, Washington
Publication Type: Technical report
Keywords: aerial and satellite imagery, air pollution removal, carbon sequestration, ecosystem services, ecosystem services valuation, land cover, land use, street trees, tree canopy cover, and urban forestry