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Understanding the Environmental and Social Impacts of Residential Flood Irrigation in the Metropolitan Area of Phoenix, AZ
Understanding the Environmental and Social Impacts of Residential Flood Irrigation in the Metropolitan Area of Phoenix, AZ
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105310
- ISBN
- 9798265465900
- DDC
- 577
- 저자명
- Vahid, Eric.
- 서명/저자
- Understanding the Environmental and Social Impacts of Residential Flood Irrigation in the Metropolitan Area of Phoenix, AZ
- 발행사항
- [Sl] : Arizona State University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 134 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-06, Section: A.
- 주기사항
- Advisor: Childers, Daniel L.
- 학위논문주기
- Thesis (Ph.D.)--Arizona State University, 2025.
- 초록/해제
- 요약Urban sustainability in arid environments demands careful attention to the interplay between ecological processes, infrastructure legacies, and social dynamics. In the Phoenix, Arizona metropolitan area, residential flood irrigation-a legacy practice originating in early agricultural settlement-persists in more than 25,000 homes, yet its environmental and social implications remain poorly understood. This dissertation integrates ecological, microclimatic, and social perspectives to examine the consequences of residential flood irrigation for greenhouse gas emissions, neighborhood thermal regulation, and community dynamics.To investigate soil-based impacts, I conducted field measurements at ten residential properties across Phoenix, Tempe, and Mesa. Nitrous oxide (N₂O) emissions were quantified using gas chambers, while soil cores were analyzed for denitrification potential (DNP), moisture, and organic matter. Results revealed that flood irrigation produces exceptionally high N₂O fluxes-40 to 600 times greater than non-irrigated landscapes-with emissions strongly correlated to soil moisture and time since flooding. In contrast, DNP values were comparable to other urban soils, with vegetation type influencing rates more than vegetation density. To assess microclimatic and infrastructural dimensions, I deployed microclimate sensors and analyzed municipal data to evaluate air temperature, relative humidity, water consumption, and energy savings. Findings showed that flood irrigation temporarily reduced yard-level air temperatures and increased humidity, yielding modest but measurable cooling benefits on the order of 2-6 °C in some cases. However, these thermal advantages came at the cost of disproportionately high water use, raising questions about trade-offs in the energy-water nexus of desert cities. Finally, to explore social dimensions, I conducted semi-structured interviews with twenty residents across seven neighborhoods. Thematic analysis highlighted both cooperation and conflict embedded in flood irrigation practices, including shared gate management, disputes over water timing, and perceptions of fairness in distribution. Flood irrigation also fostered environmental identity and neighborhood cohesion, underscoring its role as a socio-technical system that extends beyond water delivery. Taken together, this research demonstrated that residential flood irrigation is simultaneously an environmental liability and a socially valued practice. By linking biogeochemical fluxes, microclimatic effects, and neighborhood relationships, this dissertation contributes to broader debates on urban ecological infrastructure and climate adaptation. The findings provide actionable insights for policymakers, utility managers, and residents seeking to balance water conservation, climate resilience, community values and community cohesion [DC1.1]in arid urban contexts.
- 일반주제명
- Environmental science
- 일반주제명
- Ecology
- 일반주제명
- Social research
- 일반주제명
- Agricultural engineering
- 키워드
- Biogeochemistry
- 키워드
- Flood irrigation
- 키워드
- Microclimate
- 키워드
- Water use
- 기타저자
- Arizona State University Sustainability
- 기본자료저록
- Dissertations Abstracts International. 87-06A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2025 us c eng d■001000017360137
■00520260202105310
■006m o d
■007cr#unu||||||||
■020 ▼a9798265465900
■035 ▼a(MiAaPQ)AAI32284244
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a577
■1001 ▼aVahid, Eric.
■24510▼aUnderstanding the Environmental and Social Impacts of Residential Flood Irrigation in the Metropolitan Area of Phoenix, AZ
■260 ▼a[Sl]▼bArizona State University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a134 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-06, Section: A.
■500 ▼aAdvisor: Childers, Daniel L.
■5021 ▼aThesis (Ph.D.)--Arizona State University, 2025.
■520 ▼aUrban sustainability in arid environments demands careful attention to the interplay between ecological processes, infrastructure legacies, and social dynamics. In the Phoenix, Arizona metropolitan area, residential flood irrigation-a legacy practice originating in early agricultural settlement-persists in more than 25,000 homes, yet its environmental and social implications remain poorly understood. This dissertation integrates ecological, microclimatic, and social perspectives to examine the consequences of residential flood irrigation for greenhouse gas emissions, neighborhood thermal regulation, and community dynamics.To investigate soil-based impacts, I conducted field measurements at ten residential properties across Phoenix, Tempe, and Mesa. Nitrous oxide (N₂O) emissions were quantified using gas chambers, while soil cores were analyzed for denitrification potential (DNP), moisture, and organic matter. Results revealed that flood irrigation produces exceptionally high N₂O fluxes-40 to 600 times greater than non-irrigated landscapes-with emissions strongly correlated to soil moisture and time since flooding. In contrast, DNP values were comparable to other urban soils, with vegetation type influencing rates more than vegetation density. To assess microclimatic and infrastructural dimensions, I deployed microclimate sensors and analyzed municipal data to evaluate air temperature, relative humidity, water consumption, and energy savings. Findings showed that flood irrigation temporarily reduced yard-level air temperatures and increased humidity, yielding modest but measurable cooling benefits on the order of 2-6 °C in some cases. However, these thermal advantages came at the cost of disproportionately high water use, raising questions about trade-offs in the energy-water nexus of desert cities. Finally, to explore social dimensions, I conducted semi-structured interviews with twenty residents across seven neighborhoods. Thematic analysis highlighted both cooperation and conflict embedded in flood irrigation practices, including shared gate management, disputes over water timing, and perceptions of fairness in distribution. Flood irrigation also fostered environmental identity and neighborhood cohesion, underscoring its role as a socio-technical system that extends beyond water delivery. Taken together, this research demonstrated that residential flood irrigation is simultaneously an environmental liability and a socially valued practice. By linking biogeochemical fluxes, microclimatic effects, and neighborhood relationships, this dissertation contributes to broader debates on urban ecological infrastructure and climate adaptation. The findings provide actionable insights for policymakers, utility managers, and residents seeking to balance water conservation, climate resilience, community values and community cohesion [DC1.1]in arid urban contexts.
■590 ▼aSchool code: 0010.
■650 4▼aEnvironmental science
■650 4▼aEcology
■650 4▼aSocial research
■650 4▼aAgricultural engineering
■650 4▼aWater resources management
■653 ▼aBiogeochemistry
■653 ▼aFlood irrigation
■653 ▼aGreenhouse gas emissions
■653 ▼aMicroclimate
■653 ▼aNeighborhood dynamics
■653 ▼aWater use
■690 ▼a0768
■690 ▼a0329
■690 ▼a0344
■690 ▼a0539
■690 ▼a0595
■71020▼aArizona State University▼bSustainability.
■7730 ▼tDissertations Abstracts International▼g87-06A.
■790 ▼a0010
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360137▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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