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Glossary

Deciduous - trees that shed their leaves annually during the cold season. They typically exhibit broadleaf leaves that are flat and thin as opposed to needle-like or scale-like leaves. Examples of deciduous trees include oak, ash, and pecan trees. Diameter at breast height (DBH) – The diameter of a tree measured at 4.5 feet above ground in the United States (ISA, 2013). Ecoregion - “areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. These general purpose regions are critical for structuring and implementing ecosystem management strategies across federal agencies, state agencies, and nongovernment organizations that are responsible for different types of resources within the same geographical areas” (EPA, 2010). Escarpment - a steep slope or cliff resulting from a fault. Fair condition – “Decent branch placement, less than ideal scaffold spacing, some co-dominance present, past pruning less than ideal but possibly correctable. Canopy relatively thin, foliage chlorotic, vigor and shoot elongation below norm for species, minor pests or possibility of infestation. Some restriction imposed by deficiencies such as proximity to competing species, proximity to sidewalks, grade changes, poor irrigation, overhanging adjacent trees” (ArborPro, Inc., 2008). Fault zone – an area in which the earth fractures, forming a geologic fault. Genus - taxonomic group, composed of species having similar fundamental traits. Botanical classification under the family level and above the specific epithet (i.e., species) level (ISA, 2013).

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Profile for Austin Urban Forestry Program

Austin's Urban Forest Plan: A Master Plan for Public Property  

Today, urban forests are increasingly considered an element of a much larger green infrastructure network. Within this network, the urban fo...

Austin's Urban Forest Plan: A Master Plan for Public Property  

Today, urban forests are increasingly considered an element of a much larger green infrastructure network. Within this network, the urban fo...

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