A Guide to the Law and Good Practice UK government's Department of the Environment, Transport and the Regions guide that sets out the Governments policy advice on the tree preservation order system. These orders can be used to prohibit cutting down, uprooting, topping, or other tree alteration without local planning authority consent. Urban Forest Center Program of American Forests to promote tree-planting in cities. Provides tools to city manager for evaluation of urban tree-planting effects. Urban Forest Ecosystems Institute California Polytechnic Insitute.
Site includes a tree selection guide for California and other urban forestry resources.
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