Casey Trees. “How to water a tree,” 2022. www.Caseytrees.org. Conservation Montgomery. “Home Tree Care 101,” 2023. www.ConservationMontgomery.org International Society of Arboriculture. “Trees are Good.” 2022, www.treesaregood.org Johnson, Jill R. et al., Tree Owner’s Manual . Newton Square, Pennsylvania. Forest Service, U.S. Department of Agriculture, 2010. Lilly, Sharon J. Arborists’ Certification Study Guide. Champaign, Illinois. International Society of Arboriculture, 2010. Murray, Richard C. Tree Biology Notebook: An Introduction to the Science and Ecology of Trees, Revised Edition. Silver Spring, Maryland. STL Publishing. 2009. Shigo, Alex L. Tree Pruning, a Worldwide Photo Guide . Snohomish, WA. Shigo and Trees Associates, LLC. 2011. University of Maryland, Extension Service. “Planting and Care of Trees” , 2022. https://extension.umd.edu/resources/yard-garden/trees/planting-and-care-trees Local tree programs Montgomery County Department of Environmental Protection. “Tree Laws, Programs and Committees,” 2022. https://www.montgomerycountymd.gov/green/trees/laws-and- programs.html Montgomery County Department of Environmental Protection. “Tree Montgomery,” 2022. www.TreeMontgomery.org Montgomery County Department of Transportation: Division of Highway Services. “Tree Maintenance” . 2022, https://www.montgomerycountymd.gov/DOT-Highway/Tree/index.html Reforest Montgomery. https://montgomeryplanning.org/planning/environment/forest- conservation-and-trees/reforest-montgomery/. Accessed July 1, 2023. History of Trees and Forest Growth or Loss Trends in the United States DellaSala DA, Mackey B, Norman P, Campbell C, Comer PJ, Kormos CF, Keith H and Rogers B (2022) Mature and old-growth forests contribute to large-scale conservation targets in the conterminous United States. Front. For. Glob. Change 5:979528. doi: 10.3389/ffgc.2022.979528 National Conference of State Legislatures , “ Brief: The Role of Forests in Carbon Sequestration and Storage.” 2016. www.ncsl.org Nowak, David J., Greenfield, Eric J. Declining urban and community tree cover in the United States. Urban Forestry and Urban Greening Journal, 2018. Rutkow, Eric. American Canopy: Trees, Forests, and the Making of a Nation . New York, New York. Scribner. 2012. United States Department of Agriculture, Forest Service. Mature and Old-Growth Forests: Definition, Identification, and Initial Inventory on Lands Managed by the Forest Service and Bureau of Land Management . FS-1215a. April 2023 United States Department of Agriculture, Forest Service. “U.S. Forests Facts and Historical Trends.” FS-696. 2018.
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