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- All Subjects: Environmental mapping
- All Subjects: Tanque Verde Wash (Ariz.)
- Creators: Pima County (Ariz.). County Administrator's Office
This memorandum analyzed fourteen mapping efforts that have taken place in the past decades, or that are ongoing. About half of these initiatives created data that is useful for a basemap for regional bio-planning purposes. Analysis provides advice about how future research and mapping initiatives within Pima County can gather data in a more effective manner.
Pima County assembled a comprehensive land cover map for the the SDCP and in the process of doing so, identified the strengths and weaknesses of prior mapping efforts. In order to combine the best aspects of past efforts, a common language had to be established among the classification systems.
In the early 1990s, a study of the Tanque Verde Creek by Dr. Julie Stromberg and others described the relationship between the depth to groundwater and the health of the mesquite woodland habitat in the area. This report revisits the Stromberg study to describe variations in groundwater levels since the report was completed early last decade. They identified around 3,000 acres of riparian vegetation in the Tanque Verde-Agua Caliente shallow groundwater zone.
The final version of the report issued in early 2001. County staff responded in writing to clarify misunderstandings in the letter by Tucson Water. Pima County will continue to assess and look for ways to contribute to the protection of the resources in the Tanque Verde area.