Nationally, Pennsylvania ranks number one in hardwood production and forest-based recreation in Pennsylvania is a large component of tourism, the state's second-largest industry.
Species importance values (IV) are calculated using a formula that takes into account the relative leaf area and relative abundance. The most important species in Philadelphia's urban forest, according to calculated IVs, are black cherry, tulip tree, and red maple.
Philadelphia ranks only behind Atlanta, New York, and Baltimore in total city tree population.
3 years ago
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