Silver linden trees grace 23rd Street |
In the summer of 2001, the City of Salem took part in two studies to measure how much tree "cover" there is in both Salem and the Willamette Valley. Both studies used satellite imagery that can detect the presence of trees. However, the studies are quite different. For example, the regional study of the Willamette Valley (and Lower Columbia River) measure the changes of tree canopy over a 30 year period. The Salem study conveys detailed information on today's canopy cover (within the city limits) and estimates the benefits that the trees provide.
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