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- Title
Vegetative characteristics of urban land covers in metropolitan Tucson
- Authors
Livingston, Margaret; Shaw, William W.; Harris, Lisa K.
- Abstract
In this study we developed a methodology that associated land cover categories to aerial photographs. We selected 4, 42-mile (10 km2) study sites within metropolitan Tucson, Arizona for our pilotstudy. Land uses within these sites covered the range of landscapes found within Pima County, Arizona, although not necessarily in proportions representative of the metropolitan area. We designated land cover categories within the pilot sites based on recent (March, 1990) aerial photographs and developed a geographical information system (GIS) database of these land cover categories. We measured vegetation attributes on randomly selected samples within each land cover category and classified vegetation occurring on specific land cover categoriesaccording to the Brown et al. (1979) system. Our land cover classification system was nominal with a hierarchical structure, facilitatingorganization and providing flexibility for adding new categories. Our results showed that although neighborhood parks contained the greatest vegetated areas within our four study plots, very low density housing (34 acres/house), rivers whose banks were partially stabilized,naturally occurring washes (with no bank stabilization), and naturalopen space contained the highest percentage of native vegetation. Within our four study sites, low density housing (34 acres/house), rivers with partially stabilized banks, naturally occurring washes (no bank stabilization), and natural open space land cover categories contained the most area that was covered with vegetation providing escape cover.
- Subjects
AERIAL photography; WILDLIFE conservation; LAND use; CITIES &; towns; GEOGRAPHY
- Publication
Urban Ecosystems, 1998, Vol 2, Issue 2/3, p65
- ISSN
1083-8155
- Publication type
Article