ASU Electronic Theses and Dissertations
This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.
In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.
Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.
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Description
With the projected population growth, the need to produce higher agricultural yield to meet projected demand is hindered by water scarcity. Out of many the approaches that could be implemented to meet the water gap, intensification of agriculture through adoption of advanced agricultural irrigation techniques is the focus for this research. Current high water consumption by agricultural sector in Arizona is due to historical dominance in the state economy and established water rights. Efficiency gained in agricultural water use in Arizona has the most potential to reduce the overall water consumption. This research studies the agricultural sector and water management of several counties in Arizona (Maricopa, Pinal, and Yuma). Several research approaches are employed: modeling of agricultural technology adoption using replicator dynamics, interview with water managers and farmers, and Arizona water management law and history review. Using systems thinking, the components of the local farming environment are documented through socio-ecological system/robustness lenses. The replicator dynamics model is employed to evaluate possible conditions in which water efficient agricultural irrigation systems proliferate. The evaluation of conditions that promote the shift towards advanced irrigation technology is conducted through a combination of literature review, interview data, and model analysis. Systematic shift from the currently dominant flood irrigation toward a more water efficient irrigation technologies could be attributed to the followings: the increase in advanced irrigation technology yield efficiency; the reduction of advanced irrigation technology implementation and maintenance cost; the change in growing higher value crop; and the change in growing/harvesting time where there is less competition from other states. Insights learned will further the knowledge useful for this arid state's agricultural policy decision making that will both adhere to the water management goals and meet the projected food production and demand gap.
ContributorsBudiyanto, Yoshi (Author) / Muneepeerakul, Rachata (Thesis advisor) / Smith, Karen (Committee member) / Abbott, Joshua (Committee member) / Arizona State University (Publisher)
Created2014
Description
Water scarcity in the Western United States has been the focus of recent policy discussion. Researchers and policymakers agree that the implications of water scarcity are severe and widespread, and as such have stressed the importance of addressing water allocation in the short term and long term. However, this urgency has led to some short-term solutions, like rotational fallowing, being implemented without evaluation, or some long-term solutions, like re-structuring of rights, being suggested without precedent. This dissertation aims at reducing the gap between proposed solutions, existing data, and program evaluation by developing and analyzing two novel datasets useful for causal identification, evaluating both a long-term and short-term approach to water scarcity with these data, and finally demonstrating the ability of overlapping institutions to respond to increasing weather variability. Chapter 1 evaluates a short-term approach, rotational fallowing, and identifies the impact of this approach on water savings. Chapter 2 develops novel trade panel data and exploits the only share-based water market in the US: the Colorado-Big Thompson Project. This chapter compares trade and crop choice outside of the CBT, to those same outcomes within the CBT, and identifies the differences. Chapter 3 expands on crop choice within the CBT and identifies the extent to which overlapping institutions can mediate weather variability compared to prior appropriation.
ContributorsWright, Katherine (Author) / Leonard, Bryan (Thesis advisor) / Abbott, Joshua (Committee member) / York, Abigail (Committee member) / Arizona State University (Publisher)
Created2023