Filtering by
- All Subjects: Historic preservation
- All Subjects: Riparian ecology
- All Subjects: Riparian restoration
- Creators: Pima County (Ariz.). County Administrator's Office
- Status: Published
The purpose of this report is to highlight lands acquired with 1997 and 2004 voter-approved bond funds, provide a historical record of Pima County’s land conservation efforts and consider how these properties contribute to Pima County’s long-term vision – the Sonoran Desert Conservation Plan. The report also provides a special feature on the evolution of conservation and land use planning in Pima County.
Stream flow disappearance due to groundwater pumping, floodplain development, and habitat loss due to erosion have significantly altered the biologically rich and diverse riparian corridors of eastern Pima County. Today, there are new opportunities to recreate our watercourses as a gathering place for people and wildlife.
This report was drafted to facilitate discussion about protection of cultural resources under the Sonoran Desert Conservation Plan. The first part of the report provides an overview of historic preservation in Pima County, while the second part provides analysis and recommendations for improving Pima County's historic preservation policy.
Invasions by non-native species cause serious problems in many parts of Pima County. It will benefit from adopting policies and increasing coordination with government and non-profit groups to deal effectively with invasive species.
A restoration effort of the San Pedro River to restore sacaton grassland, riparian trees and mesquite to about half the 50 acres of fallow agricultural fields at the Bingham Cienega. The overriding goals were to (1) establish a diversity of riparian habitats in the fields which in turn will support a greater number of invertebrate, reptile, mammal and bird species; and (2) develop practical techniques for promoting establishment of native plants that require little or no irrigation.
Ten watercourses in eastern Pima County were selected because, except for one, each has a 100-year discharge in excess of 10,000 cfs, and each is located within an urbanized or urbanizing area, or in an area where an increasing number of permits are being sought to develop in the floodplain.
This memorandum describes (1) the potential applicability to Pima County of a national initiative to institute reforms in floodplain management; and (2) an assessment of the effectiveness of Pima County's Riparian Habitat Mitigation Ordinance (attachment). An inter-departmental team was formed to formulate specific proposals for consideration as part of the Riparian Protection Element of the SDCP and the major plan amendment to the County's comprehensive plan.
Arizona's fish story begins in 1904 with the publication of Morton Chambrlain's "Survey of Arizona Fishes", the first detailed study by an aquatic biologist of the area. He was able to count sixteen native species in Arizona. Today more than half are either extinct or listed as threatened or endangered, and most of the rest are considered to be imperiled. In Pima County, we count more extirpated native fish than remaining residents. The story, absent a fairly dramatic change in circumstances, will end with the extirpation or extinction of all native fish in the region. This report provides an opportunity to change the circumstances of aquatic and riparian systems in eastern Pima County.
Describes a comprehensive regional policy direction to achieve meaningful riparian restoration necessary for endangered species compliance and the basic relation of water policy to conservation planning.
Provides a brief analysis of the legal and financial feasibility of the March 16, 2000 proposal, as well as a comparative analysis of (1) the conservation value, (2) the level of cultural resource protection, and (3) the fiscal impact of the proposal as measured against other development projects and against the various alternatives that might be exercised by the landowner.