Deborah R. Hilbert, Lara A. Roman, Andrew K. Koeser, Jess Vogt, and Natalie S. van Doorn
USDA
Urban tree mortality studies span a range of quantitative and qualitative study designs, with a dramatic increase in the number of published studies over the past ten years. For planting cohort studies, annual mortality tended to be higher during the first five years after planting, aligning with the establishment phase concept. Based on mortality rates reported in planting cohort studies, the population half-life for planted urban trees (i.e., when survivorship is 50%) is around 7 to 11 years, 13 to 18 years, and 33 to 38 years for worse-than-normal, middle of the road, and better-than-normal survivorship scenarios.
Tags: Ecological Monitoring, Street Tree, Tree Death, Tree Demography, Tree Population, Tree Survival, Urban Park, Yard Tree
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