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DescriptionSection 1: Introduction, Section 2: Physical Features, Section 3: Biological Resources, Section 4: Social/Economic, Section 5: Important Resources, Section 6: Watershed Classification, Section 7: Watershed Management, Section 8: Watershed Planning, Appendix A: Water Quality Data and Assessments, Appendix B: Selected References, Appendix C: RUSLE, Appendix D: AGWA
CollectionsArizona NEMO Watershed-Based Plans
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Arizona Watershed Stewardship Guide: Life in the Watershed -- Part I: Watershed EcologyEmanuel, Robert; Radden, Russ; Clark, Richard J.; Natural Resources & the Environment, School of (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2005)Arizona Watershed Stewardship Guide was created to help individuals and groups build a mutual foundation of basic knowledge about watersheds in Arizona. It is intended to help Arizonans understand and be good stewards of their watersheds. The guide was designed to compliment the mission of Arizona Master Watershed Steward program to educate and train citizens across the state of Arizona to serve as volunteers in the monitoring, restoration, conservation, and protection of their water and watersheds. The guide consists of 10 self-contained modules which teach about one or more important aspects of watershed science or management.
Parting the Watershed: The Political Ecology of a Corporate Community in the Santa Cruz River Watershed, Sonora, Mexico.Emanuel, Robert M. (The University of Arizona., 2006)Ecological change very often parallels social change. The concept of the social-ecological system (SES) provides a holistic means of accounting for the dualistic nature of human-environmental interactions by acknowledging that social, political and economic factors influence and are in turn influenced by the processes of ecological change. These transformations can be contextualized within nested adaptive cycles of change that respond to pre-existing conditions and which provide new opportunities for system actors. The adaptive cycle also grants that processes of social and ecological change may be permanent, irreversible and result in new configurations not previously imaginable. The ability for an SES to respond to these processes of change depends upon its resilience which defines the range of reversible change within a stable state. Resilience is determined by a system's vulnerability, by the pre-existing or available capital.Within this dissertation, I assert that resilience is an important factor to consider in studying arid land political ecology. Resilience can be influenced by both institutional and environmental factors. I assert here that institutional factors alone cannot explain the pace of change in a particular political ecology. While institutions constitute the dominant signals with regards to economic decision making, environmental signals may be ultimately more significant. I utilize a detailed case study focused upon a watershed and ejido in northwestern Mexico. This case study demonstrates the influence of strong political and economic signals that influence local economics. Nature bats last and can exert powerful forces over institutional choices. Using this case study, I demonstrate how a dramatic shift in climatic as well as hydrologic regimes leads ultimately to a general degradation of agropastoral ecological resources and their replacement with new, stable but less desirable states. Land-use has subsequently changed. The latter set of ecological changes has become a sort of death of a thousand cuts that has reduced the community's ability to tap local natural capital and thereby generate economic capital. This study is intends to contribute to our knowledge of political ecology by evaluating the concepts of ecological resilience, multiple stable states, and adaptive cycles to the study of these social-ecological systems.
The effects of watershed treatments on the relationship between runoff peak and volume for the Beaver Creek watershed, ArizonaHaddad, Munir Salim, 1953- (The University of Arizona., 1990)The relationship between runoff peak and volume was examined for ten sub-watersheds in the Beaver Creek, Arizona watershed. Least square analyses, linear regression, and coefficient analysis were utilized to evaluate the effects of treatments. Different treatments, such as clear cutting, uprooting, herbicide, and thinning, were applied on watersheds. For most of the watersheds, treatments were shown to have no significant effect on the relationship. However, herbicide treatment and clear cutting treatment in watersheds 3 and 12 respectively showed highly significant increases in peak flows. Significant increase in peak for the smaller events resulted from scattered patch cutting in watershed #10.