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Articles 1 - 16 of 16
Full-Text Articles in Physical Sciences and Mathematics
Using Diatoms To Reconstruct Eutrophication In Lake Carmi, Vt, Margaret Polifrone, Sarah Wasserman, Ismar Biberovic, Kaleb Jones, Andrew Schroth, Andrea Lini, Ana Morales-Williams
Using Diatoms To Reconstruct Eutrophication In Lake Carmi, Vt, Margaret Polifrone, Sarah Wasserman, Ismar Biberovic, Kaleb Jones, Andrew Schroth, Andrea Lini, Ana Morales-Williams
Lake Champlain Sea Grant Institute
No abstract provided.
Maintaining Driveways, Lake Champlain Sea Grant
Maintaining Driveways, Lake Champlain Sea Grant
Lake Champlain Sea Grant Institute
This presentation produced by Lake Champlain Sea Grant's BLUE BTV initiative explains how driveways can contribute to stormwater and pollutant runoff into waterways, what cities, like Burlington, Vermont, are doing to encourage impervious driveways, and actions that individuals can take to maintain their own driveways to keep waterways clean.
Best Lawn Care Practices, Lake Champlain Sea Grant
Best Lawn Care Practices, Lake Champlain Sea Grant
Lake Champlain Sea Grant Institute
Lawn care practices that contribute to a healthy lawn and better water quality are described.
Programs in Burlington, Vermont, are described.
Stormwater Subsurface Gravel Wetlands In Vermont: Permitting, Performance, And Chloride Concerns, Watershed Consulting Associates, Llc, University Of Vermont
Stormwater Subsurface Gravel Wetlands In Vermont: Permitting, Performance, And Chloride Concerns, Watershed Consulting Associates, Llc, University Of Vermont
Lake Champlain Sea Grant Institute
Subsurface gravel wetlands (SGW) are water treatment practices that utilize a saturated bed of gravel and (sometimes) wetland vegetation to filter incoming water and remove pollutants through a combination of physical filtration, adsorption, biological uptake, and microbial transformation. Water level is controlled by an outlet structure to retain a permanent subsurface pool, providing retention of stormwater volume in addition to pollutant removal. SGW are becoming increasingly popular tools for stormwater treatment in Vermont.
A varied group of partners including academic researchers, municipal stormwater managers, and consulting designers and engineers, have identified questions around stormwater gravel wetland performance as significant in …
Evaluating Water Quality Regulation As A Driver Of Farmer Behavior: A Social-Ecological Systems Approach, Courtney R.Hammond Wagner, Suzie Greenhalgh, Meredith T. Niles, Asim Zia, William B. Bowden
Evaluating Water Quality Regulation As A Driver Of Farmer Behavior: A Social-Ecological Systems Approach, Courtney R.Hammond Wagner, Suzie Greenhalgh, Meredith T. Niles, Asim Zia, William B. Bowden
College of Agriculture and Life Sciences Faculty Publications
Water quality policy for agricultural lands seeks to improve water quality by changing farmer behavior. We investigate farmer behavior in three water quality regimes that differ by rule structure to examine the fit and interplay of each policy within its social-ecological context, important aspects for improving water quality. Vermont, USA’s practice-based policy requires the adoption of specific practices, whereas New Zealand’s Lake Taupo and Lake Rotorua performance-based policies require farmers to meet a numeric limit for nutrient loss on their farm. Across the three regions we interviewed 38 farmers to elicit mental models of nutrient management changes. We utilized the …
Payment For Ecosystem Services: Incentives To Support Environmental Quality & Farming In Vermont, Stephen Posner, Taylor Ricketts, Eric Roy
Payment For Ecosystem Services: Incentives To Support Environmental Quality & Farming In Vermont, Stephen Posner, Taylor Ricketts, Eric Roy
Reports and Policy Briefs
Environmental quality is an ongoing concern in the Lake Champlain Basin. Vermont farmers are in a unique position to manage land in a way that maintains and improves environmental quality. A payment for ecosystem services (PES) program for Vermont would both support the economic vi- ability of Vermont farms and incentivize farmers to improve water quality and soil health. How- ever, conceptual and practical implementation challenges remain.
Edge-Of-Field Hydrology And Nutrient Fluxes Within Northeastern Agroecosystems: Evaluation Of Alternative Management Practices And Water Quality Models, Cameron Robert Twombly
Edge-Of-Field Hydrology And Nutrient Fluxes Within Northeastern Agroecosystems: Evaluation Of Alternative Management Practices And Water Quality Models, Cameron Robert Twombly
Graduate College Dissertations and Theses
Agricultural runoff is one of largest contributors of phosphorus (P), nitrogen (N), and sediment affecting freshwater systems in watersheds across the Northeastern U.S., including the Lake Champlain Basin in Vermont. Agricultural cropping systems, such as corn silage and haylands, used for dairy feed production have been shown to impact watershed hydrology and water quality. Agricultural best management practices (BMPs) have the potential to decrease runoff volumes and flow rates and the associated export of nutrients and sediment from agricultural fields. Many states in the Northeastern U.S., including Vermont, are beginning to require farmers to implement water quality BMPs and further …
Shining Light On The Storm: Using High-Frequency Optical Water Quality Sensors To Characterize And Interpret Storm Nutrient And Carbon Dynamics Among Contrasting Land Uses, Matthew Ch Vaughan
Shining Light On The Storm: Using High-Frequency Optical Water Quality Sensors To Characterize And Interpret Storm Nutrient And Carbon Dynamics Among Contrasting Land Uses, Matthew Ch Vaughan
Graduate College Dissertations and Theses
Elevated nutrient concentrations present significant challenges to surface water quality management globally, and dissolved organic matter mediates several key biogeochemical processes. Storm events often dominate riverine loads of nitrate, phosphorus, and dissolved organic matter, and are expected to increase in frequency and intensity in many regions due to climate change. The recent development of in situ optical sensors has revolutionized water quality monitoring and has highlighted the important role storms play in water quality. This dissertation focuses on improving the application of in situ optical water quality sensors and interpreting the high-frequency data they produce to better understand biogeochemical and …
Governing Water Quality Limits In Agricultural Watersheds, Courtney Ryder Hammond Wagner
Governing Water Quality Limits In Agricultural Watersheds, Courtney Ryder Hammond Wagner
Graduate College Dissertations and Theses
The diffuse runoff of agricultural nutrients, also called agricultural nonpoint source pollution (NPS), is a widespread threat to freshwater resources. Despite decades of research into the processes of eutrophication and agricultural nutrient management, social, economic, and political barriers have slowed progress towards improving water quality. A critical challenge to managing agricultural NPS pollution is motivating landowners to act against their individual farm production incentives in response to distant ecological impacts. The complexity of governing the social-ecological system requires improved understanding of how policy shapes farmer behavior to improve the state of water quality. This dissertation contributes both theoretically and empirically …
Water Quality Performance And Greenhouse Gas Flux Dynamics From Compost-Amended Bioretention Systems & Potential Trade-Offs Between Phytoremediation And Water Quality Stemming From Compost Amendments, Paliza Shrestha
Graduate College Dissertations and Theses
Stormwater runoff from existing impervious surfaces needs to be managed to protect downstream waterbodies from hydrologic and water quality impacts associated with development. As urban expansion continues at a rapid pace, increasing impervious cover, and climate change yields more frequent extreme precipitation events, increasing the need for improved stormwater management. Although green infrastructure such as bioretention has been implemented in urban areas for stormwater quality improvements and volume reductions, these systems are seldom monitored to validate their performance. Herein, we evaluate flow attenuation, stormwater quality performance, and nutrient cycling from eight roadside bioretention cells in their third and fourth years …
Identifying The Spatial Pattern And Importance Of Hydro-Geomorphic Drainage Impairments On Unpaved Roads In The Northeastern Usa, Beverley C. Wemple, Gordon E. Clark, Donald S. Ross, Donna M. Rizzo
Identifying The Spatial Pattern And Importance Of Hydro-Geomorphic Drainage Impairments On Unpaved Roads In The Northeastern Usa, Beverley C. Wemple, Gordon E. Clark, Donald S. Ross, Donna M. Rizzo
College of Arts and Sciences Faculty Publications
Roads have been widely studied as sources of runoff and sediment and identified as pollutant production sources to receiving waters. Despite the wealth of research on logging roads in forested, upland settings, little work has been conducted to examine the role of extensive networks of rural, low-volume, unpaved roads on water quality degradation at the catchment scale. We studied a network of municipal unpaved roads in the northeastern US to identify the type and spatial extent of ‘hydro-geomorphic impairments’ to water quality. We mapped erosional and depositional features on roads to develop an estimate of pollutant production. We also mapped …
Geochemical Evolution Of The Critical Zone Across Variable Time Scales Informs Concentration-Discharge Relationships: Jemez River Basin Critical Zone Observatory, Jennifer C. Mcintosh, Courtney Schaumberg, Julia Perdrial, Adrian Harpold, Angélica Vázquez-Ortega, Craig Rasmussen, David Vinson, Xavier Zapata-Rios, Paul D. Brooks, Thomas Meixner, Jon Pelletier, Louis Derry, Jon Chorover
Geochemical Evolution Of The Critical Zone Across Variable Time Scales Informs Concentration-Discharge Relationships: Jemez River Basin Critical Zone Observatory, Jennifer C. Mcintosh, Courtney Schaumberg, Julia Perdrial, Adrian Harpold, Angélica Vázquez-Ortega, Craig Rasmussen, David Vinson, Xavier Zapata-Rios, Paul D. Brooks, Thomas Meixner, Jon Pelletier, Louis Derry, Jon Chorover
College of Arts and Sciences Faculty Publications
This study investigates the influence of water, carbon, and energy fluxes on solute production and transport through the Jemez Critical Zone (CZ) and impacts on C-Q relationships over variable spatial and temporal scales. Chemical depletion-enrichment profiles of soils, combined with regolith thickness and groundwater data indicate the importance to stream hydrochemistry of incongruent dissolution of silicate minerals during deep bedrock weathering, which is primarily limited by water fluxes, in this highly fractured, young volcanic terrain. Under high flow conditions (e.g., spring snowmelt), wetting of soil and regolith surfaces and presence of organic acids promote mineral dissolution and provide a constant …
Coupled Impacts Of Climate And Land Use Change Across A River-Lake Continuum: Insights From An Integrated Assessment Model Of Lake Champlain's Missisquoi Basin, 2000-2040, Asim Zia, Arne Bomblies, Andrew W. Schroth, Christopher Koliba, Peter D.F. Isles, Yushiou Tsai, Ibrahim N. Mohammed, Gabriela Bucini, Patrick J. Clemins, Scott Turnbull, Morgan Rodgers, Ahmed Hamed, Brian Beckage, Jonathan Winter
Coupled Impacts Of Climate And Land Use Change Across A River-Lake Continuum: Insights From An Integrated Assessment Model Of Lake Champlain's Missisquoi Basin, 2000-2040, Asim Zia, Arne Bomblies, Andrew W. Schroth, Christopher Koliba, Peter D.F. Isles, Yushiou Tsai, Ibrahim N. Mohammed, Gabriela Bucini, Patrick J. Clemins, Scott Turnbull, Morgan Rodgers, Ahmed Hamed, Brian Beckage, Jonathan Winter
College of Engineering and Mathematical Sciences Faculty Publications
Global climate change (GCC) is projected to bring higher-intensity precipitation and higher-variability temperature regimes to the Northeastern United States. The interactive effects of GCC with anthropogenic land use and land cover changes (LULCCs) are unknown for watershed level hydrological dynamics and nutrient fluxes to freshwater lakes. Increased nutrient fluxes can promote harmful algal blooms, also exacerbated by warmer water temperatures due to GCC. To address the complex interactions of climate, land and humans, we developed a cascading integrated assessment model to test the impacts of GCC and LULCC on the hydrological regime, water temperature, water quality, bloom duration and severity …
Coupled Impacts Of Climate And Land Use Change Across A River-Lake Continuum: Insights From An Integrated Assessment Model Of Lake Champlain's Missisquoi Basin, 2000-2040, Asim Zia, Arne Bomblies, Andrew W. Schroth, Christopher Koliba, Peter D.F. Isles, Yushiou Tsai, Ibrahim N. Mohammed, Gabriela Bucini, Patrick J. Clemins, Scott Turnbull, Morgan Rodgers, Ahmed Hamed, Brian Beckage, Jonathan Winter, Carol Adair, Gillian L. Galford, Donna Rizzo, Judith Van Houten
Coupled Impacts Of Climate And Land Use Change Across A River-Lake Continuum: Insights From An Integrated Assessment Model Of Lake Champlain's Missisquoi Basin, 2000-2040, Asim Zia, Arne Bomblies, Andrew W. Schroth, Christopher Koliba, Peter D.F. Isles, Yushiou Tsai, Ibrahim N. Mohammed, Gabriela Bucini, Patrick J. Clemins, Scott Turnbull, Morgan Rodgers, Ahmed Hamed, Brian Beckage, Jonathan Winter, Carol Adair, Gillian L. Galford, Donna Rizzo, Judith Van Houten
Rubenstein School of Environment and Natural Resources Faculty Publications
Global climate change (GCC) is projected to bring higher-intensity precipitation and higher-variability temperature regimes to the Northeastern United States. The interactive effects of GCC with anthropogenic land use and land cover changes (LULCCs) are unknown for watershed level hydrological dynamics and nutrient fluxes to freshwater lakes. Increased nutrient fluxes can promote harmful algal blooms, also exacerbated by warmer water temperatures due to GCC. To address the complex interactions of climate, land and humans, we developed a cascading integrated assessment model to test the impacts of GCC and LULCC on the hydrological regime, water temperature, water quality, bloom duration and severity …
New Insights For The Future Of Lake Champlain: Practical Approaches And Useful Tools For Grappling With Uncertainty And Weighing Trade-Offs In Watershed Management., Philip Halteman
Graduate College Dissertations and Theses
The effective management of non-point source nutrient pollution continues to prove elusive. Though the scientific literature is unequivocal that all anthropogenic land uses contribute to non-point source (NPS) pollution, variable levels of contribution over time and across location and complex relationships between cost and effect make finding technologically effective management solutions difficult. In addition, these solutions are implemented in a world of scarce resources, diverse and often competing concerns and values, and intense public scrutiny. Clearly, making the best possible decision about how to manage NPS pollution under these conditions is not simple. My overarching goal was to develop and …
Master's Project: Evaluating The Effectiveness Of Best Management Practices On Rural Backroads Of Vermont: A Retrospective Assessment And Cost Analysis, Joanne S. Garton
Master's Project: Evaluating The Effectiveness Of Best Management Practices On Rural Backroads Of Vermont: A Retrospective Assessment And Cost Analysis, Joanne S. Garton
Rubenstein School Masters Project Publications
Repeated erosion of over 7,000 miles of unpaved roads in Vermont is degrading water quality and draining limited town budgets. Best Management Practices (BMPs), including stone-lined ditches, turn outs, check dams, revetments, culverts and vegetative controls, are recommended by the Vermont Department of Transportation as low cost means of reducing the sediment and phosphorous run-off from backroads. However, their effectiveness, longevity and cost benefit are unknown. To address this gap, I assessed 100 BMPs at 43 erosion control projects constructed between 2005 and 2012 with funding from the Vermont Better Backroads program. BMP condition was compared to environmental factors that …