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Biogeochemical Transformations Linked to Multiple Carbon-Soil Amendments During Infiltration, With Implications for Managed Recharge
Biogeochemical Transformations Linked to Multiple Carbon-Soil Amendments During Infiltration, With Implications for Managed Recharge
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202102956
- ISBN
- 9798288885303
- DDC
- 551
- 서명/저자
- Biogeochemical Transformations Linked to Multiple Carbon-Soil Amendments During Infiltration, With Implications for Managed Recharge
- 발행사항
- [Sl] : University of California, Santa Cruz, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 184 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Fisher, Andrew T.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Santa Cruz, 2025.
- 초록/해제
- 요약Groundwater resources are under dual threat from declining supply and deteriorating quality. Managed aquifer recharge (MAR) has emerged as a critical strategy to augment and sustain groundwater storage. At the same time, MAR systems present an opportunity to improve groundwater quality during infiltration. As water infiltrates through the subsurface, physical filtration and biogeochemical transformations can remove contaminants of concern, such as nitrate, thereby improving the quality of recharged water.This dissertation presents three studies that link hydrologic and biogeochemical processes to assess MAR performance and evaluate the role of carbon amendments in enhancing nitrate removal. Chapter One evaluates the hydrologic performance of a newly constructed stormwater MAR system over four years, along with the influence of multiple carbon amendments incorporated across the infiltration basin. Chapter Two investigates nitrate removal, trace metal mobilization, and subsequent attenuation using laboratory-based flow-through column and batch incubation experiments. Chapter Three examines the long-term hydrologic performance and nitrate removal capacity (and longevity) of a woodchip amended stormwater MAR basin.In Chapter One, the MAR system met its infiltration goal in three of the four monitored years, with high spatial and temporal variability in infiltration rates. Carbon amendments increased DOC availability and, in some cases, supported nitrate reduction under field conditions. Chapter Two showed that almond shells and wood mulch facilitated high nitrate removal (99%) under controlled conditions but also mobilized redox-sensitive metals (As, Mn, Fe). Batch incubations showed that contact with deeper aquitard materials led to partial attenuation of these metals under both oxic and anoxic conditions. In Chapter Three, field monitoring revealed that nitrate removal was highest in the year following woodchip application, and while elevated removal persisted in subsequent years, declining DOC concentrations and less efficient denitrification emphasize a need for periodic replenishment to sustain long-term performance.Together, these studies provide insight into the complex interactions between hydrologic processes, biogeochemical cycling, and carbon characteristics in MAR systems. The findings provide critical insights for optimizing MAR implementation to achieve sustainable groundwater management, addressing both water supply and quality concerns, particularly in agriculturally impacted regions.
- 일반주제명
- Hydrologic sciences
- 일반주제명
- Biogeochemistry
- 키워드
- Denitrification
- 키워드
- Hydrogeology
- 키워드
- Water quality
- 키워드
- Water resources
- 기타저자
- University of California, Santa Cruz Earth Science
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798288885303
■035 ▼a(MiAaPQ)AAI31769832
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a551
■1001 ▼aSerrano, Araceli.▼0(orcid)0009-0004-4222-9783
■24510▼aBiogeochemical Transformations Linked to Multiple Carbon-Soil Amendments During Infiltration, With Implications for Managed Recharge
■260 ▼a[Sl]▼bUniversity of California, Santa Cruz▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a184 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Fisher, Andrew T.
■5021 ▼aThesis (Ph.D.)--University of California, Santa Cruz, 2025.
■520 ▼aGroundwater resources are under dual threat from declining supply and deteriorating quality. Managed aquifer recharge (MAR) has emerged as a critical strategy to augment and sustain groundwater storage. At the same time, MAR systems present an opportunity to improve groundwater quality during infiltration. As water infiltrates through the subsurface, physical filtration and biogeochemical transformations can remove contaminants of concern, such as nitrate, thereby improving the quality of recharged water.This dissertation presents three studies that link hydrologic and biogeochemical processes to assess MAR performance and evaluate the role of carbon amendments in enhancing nitrate removal. Chapter One evaluates the hydrologic performance of a newly constructed stormwater MAR system over four years, along with the influence of multiple carbon amendments incorporated across the infiltration basin. Chapter Two investigates nitrate removal, trace metal mobilization, and subsequent attenuation using laboratory-based flow-through column and batch incubation experiments. Chapter Three examines the long-term hydrologic performance and nitrate removal capacity (and longevity) of a woodchip amended stormwater MAR basin.In Chapter One, the MAR system met its infiltration goal in three of the four monitored years, with high spatial and temporal variability in infiltration rates. Carbon amendments increased DOC availability and, in some cases, supported nitrate reduction under field conditions. Chapter Two showed that almond shells and wood mulch facilitated high nitrate removal (99%) under controlled conditions but also mobilized redox-sensitive metals (As, Mn, Fe). Batch incubations showed that contact with deeper aquitard materials led to partial attenuation of these metals under both oxic and anoxic conditions. In Chapter Three, field monitoring revealed that nitrate removal was highest in the year following woodchip application, and while elevated removal persisted in subsequent years, declining DOC concentrations and less efficient denitrification emphasize a need for periodic replenishment to sustain long-term performance.Together, these studies provide insight into the complex interactions between hydrologic processes, biogeochemical cycling, and carbon characteristics in MAR systems. The findings provide critical insights for optimizing MAR implementation to achieve sustainable groundwater management, addressing both water supply and quality concerns, particularly in agriculturally impacted regions.
■590 ▼aSchool code: 0036.
■650 4▼aHydrologic sciences
■650 4▼aBiogeochemistry
■650 4▼aWater resources management
■653 ▼aDenitrification
■653 ▼aHydrogeology
■653 ▼aWater quality
■653 ▼aWater resources
■653 ▼aManaged aquifer recharge
■690 ▼a0388
■690 ▼a0425
■690 ▼a0595
■71020▼aUniversity of California, Santa Cruz▼bEarth Science.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0036
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356580▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
