Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

PDF

Environmental Sciences

Watersheds

Institution
Publication Year
Publication
Publication Type

Articles 1 - 30 of 113

Full-Text Articles in Entire DC Network

Foundational Conditions Enabling Participatory River Management In Watersheds Of Two Regulatorily Disparate States: A Mixed Methods Study, M. E. Burbach, S. Kennedy, W. M. Eaton, K. J. Brasier Jan 2023

Foundational Conditions Enabling Participatory River Management In Watersheds Of Two Regulatorily Disparate States: A Mixed Methods Study, M. E. Burbach, S. Kennedy, W. M. Eaton, K. J. Brasier

School of Natural Resources: Faculty Publications

No abstract provided.


Glacial Loss And Threatened Fish: The Future Of Mount Rainier’S Cold-Water Bull Trout Habitats, Kathleen C. Ewen Jan 2023

Glacial Loss And Threatened Fish: The Future Of Mount Rainier’S Cold-Water Bull Trout Habitats, Kathleen C. Ewen

WWU Graduate School Collection

Glaciers play a key ecological role in the river systems that they support. Cold-water reaches supplied by glacial ice serve as critical habitats for aquatic organisms that rely on specific thermal ranges to survive. Federally threatened Bull Trout (Salvelinus confluentus) require very cold temperatures, like those found in glacial systems, to complete their life cycles. However, glaciers are retreating due to climate change and are expected to continue diminishing throughout this century. Decreased glacial extent could result in warmer stream temperatures downstream from glaciers and, depending on the magnitude of stream temperature increase, cold-water habitats relied upon by Bull Trout …


Hydrologic Modeling Study To Determine Hydrologic Impact Of Resacas On The Lower Laguna Madre Watershed, Antonio L. Reyna May 2022

Hydrologic Modeling Study To Determine Hydrologic Impact Of Resacas On The Lower Laguna Madre Watershed, Antonio L. Reyna

Theses and Dissertations

During a high intensity storm events, a series of catastrophic events occur. These catastrophic events include flooding and destruction of infrastructure. Engineers have determined a method to design for high intensity storms based off hydrologic analysis of previous storms. With this data engineers can determine the outflow of major rivers and streams that may impact infrastructure. By determining the watershed engineers can predict the flow of the water and as well as the location of the outfall. In the Rio Grande Valley, water quality is very important because after rain events stormwater from cities is carried out towards the Laguna …


The Human Health Implications Of Antibiotic Resistance In Environmental Isolates From Two Nebraska Watersheds, L. Donner, Z. Staley, J. Petali, J. Sangster, X. Li, W. Mathews, Daniel D. Snow Jan 2022

The Human Health Implications Of Antibiotic Resistance In Environmental Isolates From Two Nebraska Watersheds, L. Donner, Z. Staley, J. Petali, J. Sangster, X. Li, W. Mathews, Daniel D. Snow

School of Natural Resources: Faculty Publications

No abstract provided.


Vignette 07: Stormwater Effluent Exerts A Key Pressure On The Salish Sea, Emily Howe May 2021

Vignette 07: Stormwater Effluent Exerts A Key Pressure On The Salish Sea, Emily Howe

Institute Publications

One of the primary terrestrial pressures on the Salish Sea estuarine and marine environment is urban stormwater runoff. When rainfall runs across hard, impervious surfaces, rather than soaking into the soil, it picks up and delivers toxic contaminants directly to nearby streams, rivers, and eventually the Salish Sea. In fact, for most toxic substances, surface runoff is the largest contributing source of loading to Puget Sound. Unfortunately, the Salish Sea’s relationship with stormwater effluent is no outlier; stormwater is the fastest growing cause of surface water impairment in the United States as urbanization transitions forested and other natural landscapes to …


Salish Sea And Western North America Watersheds Contextual Landscape, Aquila Flower Jan 2021

Salish Sea And Western North America Watersheds Contextual Landscape, Aquila Flower

Salish Sea Maps

No abstract provided.


Microplastic Monitoring In Richardsonius Balteatus From Ross Lake, Wa, Sarah Vanlandingham, Anne Fuenzalida May 2020

Microplastic Monitoring In Richardsonius Balteatus From Ross Lake, Wa, Sarah Vanlandingham, Anne Fuenzalida

Scholars Week

Recent work has shown that microplastics are present in glaciers. This is a concern for water bodies such as Ross Lake (WA) where glacier runoff may transport the microplastics into the watershed and be available to aquatic organisms. Currently there is no evaluation of how organism storage methods may impact microplastic recovery. In this study microplastic type and color in whole body Richardsonius balteatus (redside shiners) from Ross Lake were counted. Fish were collected from Ross Lake on July 6th, 2019. Approximately half of the samples were stored in ethanol and the remainder on ice. Characteristics including color and type …


Presence Of Microplastics In Ephemeroptera, Plecoptera, And Trichoptera Of North Cascades National Park, Madison Pongon, Amy Owen May 2020

Presence Of Microplastics In Ephemeroptera, Plecoptera, And Trichoptera Of North Cascades National Park, Madison Pongon, Amy Owen

Scholars Week

The presence of microplastics in glaciers has led to concern for freshwater systems connected to the glaciers. In areas such as the North Cascades (WA), glacier runoff could transport these microplastics into the watershed and into organisms in the streams. Benthic macroinvertebrates are good indicators of water quality because they may be sensitive to pollution. Their relatively low status on the freshwater food chain suggests the possibility for accumulated microplastics in macroinvertebrates to be a source of microplastics to predators, proving a hazard to the health of freshwater ecosystems. Samples analyzed in this study were Emphemeroptera, Plecoptera, and Tricoptera collected …


Quantifying The Extent Of Wildfire Impacted Streams In The Western United States, Grady Ball Oct 2019

Quantifying The Extent Of Wildfire Impacted Streams In The Western United States, Grady Ball

Water Resources Professional Project Reports

Beginning in the mid-1980s, the number of fires and acres burned by wildfire in the United States has grown at an explosive rate. Several factors, anthropogenic and natural, have converged to create a new era of high frequency, high intensity fires, which is predicted to continue until at least mid-century. Investigations into wildfire impacts have largely focused on post-fire impacts on terrestrial systems, while effects on aquatic ecosystems have been underrepresented. The growing threat of fire to streams has accelerated the need for germane information regarding the spatial extent of fire impacts on watersheds and post-fire impacts to aquatic systems. …


Constituent Loads And Trends In The Upper Illinois River Watershed And Upper White River Basin: 2015 October Through 2018 September, Erin E. Scott, Brian E. Haggard Feb 2019

Constituent Loads And Trends In The Upper Illinois River Watershed And Upper White River Basin: 2015 October Through 2018 September, Erin E. Scott, Brian E. Haggard

Technical Reports

The Arkansas Natural Resources Commission (ANRC) identified two priority hydrologic unit code (HUC) 8 watersheds, the Upper White River Basin (UWRB; HUC 11010001) and the Upper Illinois River Watershed (UIRW; 11110103), in northwest Arkansas. Nonpoint source (NPS) pollution is a concern in these watersheds, such as excess nutrients from agriculture and sediment from changes in land uses. Several NPS pollution projects have been funded by ANRC, including streambank restoration on Sager Creek and best management practices (BMP) to control urban sediment in Fayetteville. The purpose of this project was to collect water samples at 15 sites in the UWRB and …


Timber Wars And Aftermath In Northwest Coastal California, Richard Gienger May 2018

Timber Wars And Aftermath In Northwest Coastal California, Richard Gienger

Humboldt Journal of Social Relations

Abstract and other info uploaded below


Increases In Synchrony Among Central Coast Salmon Populations In British Columbia Over The Last 60 Years, Eric Hertz, Brendan Connors, Katrina Connors, John Reynolds Apr 2018

Increases In Synchrony Among Central Coast Salmon Populations In British Columbia Over The Last 60 Years, Eric Hertz, Brendan Connors, Katrina Connors, John Reynolds

Salish Sea Ecosystem Conference

Understanding the dynamics of salmon populations is important for conservation and management, but the factors driving spatial and temporal variation in many salmon populations remain poorly understood. Understanding these patterns is important for many coastal First Nations, who play an important role in the monitoring and management of salmon in their traditional territories. Using data from 200 unique spawning locations on the Central Coast of British Columbia, we quantified patterns in abundance and coherence of salmon over space and time to measure the extent to which portfolio effects stabilize variation in stocks. We found strong declines in Sockeye Salmon abundance …


Origins And Transformations Of Dissolved Organic Matter In Large Arctic Rivers, Karl Kaiser, Maria Canedo-Oropeza, Rachel Mcmahon, Eainer M. W. Amon Oct 2017

Origins And Transformations Of Dissolved Organic Matter In Large Arctic Rivers, Karl Kaiser, Maria Canedo-Oropeza, Rachel Mcmahon, Eainer M. W. Amon

OES Faculty Publications

Arctic river watersheds are important components of the global climate system and show an amplified response to climate change. Here, we characterize origins and transformations of dissolved organic matter (DOM) in five major Arctic rivers (Kolyma, Lena, Yenisei, Ob, Mackenzie) over 3 years with seasonal sampling periods using measurements of carbohydrates, amino acids, bacterial biomarkers (D-amino acids), and plant protein biomarkers (hydroxyproline). A strong seasonal cycle of bioavailable DOM export was observed that correlated with discharge, vegetation, river morphology and water residence time. The chemical composition of bioavailable DOM was different among rivers reflecting unique characteristics of Arctic river watersheds. …


An Analysis Of The Relationship Between Snowpack And Groundwater Across Utah Watersheds., Samuel Wright May 2017

An Analysis Of The Relationship Between Snowpack And Groundwater Across Utah Watersheds., Samuel Wright

Electronic Theses and Dissertations

This thesis examined what type of relationship existed between snow water equivalence (SWE) volume and groundwater elevation within six sub-watersheds in Utah. Data was gathered on SWE from seventeen SNOTEL sites and groundwater elevation data was gathered from six continuously monitored groundwater wells. This data was gathered for January through May for 2011, 2013, and 2014 in order to represent the water conditions that were above average, below average, and average respectively. Using MLR formulas the total SWE for each sub-watershed was determined for each year/month. Afterwards a correlation analysis was performed to determine if any association existed between SWE …


The Watershed Game: Land Use & Water Quality. Subjects: Environmental Science, Marine/Ocean Science, Life Science/Biology Grades: 9-12, Shanna Williamson Jan 2017

The Watershed Game: Land Use & Water Quality. Subjects: Environmental Science, Marine/Ocean Science, Life Science/Biology Grades: 9-12, Shanna Williamson

Reports

This lesson plan is a hands-on activity that allows students to explore how water and nutrients are transported from a watershed with three different land cover types and eventually ends up in a nearby stream.


Watershed Planning And Management In Colorado, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment Jan 2016

Watershed Planning And Management In Colorado, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment

Books, Reports, and Studies

9 pages.

Introduction -- The watershed approach in Colorado -- Moving to the next level : implementation of the BIPs -- Possible next steps -- Conclusion.


Urban Stream Burial Increases Watershed-Scale Nitrate Export, Jake J. Beaulieu, Heather E. Golden, Christopher D. Knightes, Paul M. Mayer, Sujay S. Kaushal, Michael J. Pennino, Clay P. Arango, David A. Balz, Colleen M. Elonen, Ken M. Fritz, Brian H. Hill Jul 2015

Urban Stream Burial Increases Watershed-Scale Nitrate Export, Jake J. Beaulieu, Heather E. Golden, Christopher D. Knightes, Paul M. Mayer, Sujay S. Kaushal, Michael J. Pennino, Clay P. Arango, David A. Balz, Colleen M. Elonen, Ken M. Fritz, Brian H. Hill

All Faculty Scholarship for the College of the Sciences

Nitrogen (N) uptake in streams is an important ecosystem service that reduces nutrient loading to downstream ecosystems. Here we synthesize studies that investigated the effects of urban stream burial on N-uptake in two metropolitan areas and use simulation modeling to scale our measurements to the broader watershed scale. We report that nitrate travels on average 18 times farther downstream in buried than in open streams before being removed from the water column, indicating that burial substantially reduces N uptake in streams. Simulation modeling suggests that as burial expands throughout a river network, N uptake rates increase in the remaining open …


Freshwater Resource Supply Modeling For Developed And Undeveloped Watersheds, Kelly C. Gustafson Jul 2014

Freshwater Resource Supply Modeling For Developed And Undeveloped Watersheds, Kelly C. Gustafson

FIU Electronic Theses and Dissertations

Globally, the current state of freshwater resource management is insufficient and impeding the chance at a sustainable future. Human interference within the natural hydrologic cycle is becoming dangerously irreversible and the need to redefine resource managerial approaches is imminent.

This research involves the development of a coupled natural-human freshwater resource supply model using a System Dynamics approach. The model was applied to two case studies, Somalia, Africa and the Phoenix Active Management Area in Arizona, USA. It is suggested that System Dynamic modeling would be an invaluable tool for achieving sustainable freshwater resource management in individual watersheds. Through a series …


Application Of Stormwater Management Techniques For Mitigation And Education At The Stockbridge School Agricultural Learning Center, Samantha R. Anderson Apr 2014

Application Of Stormwater Management Techniques For Mitigation And Education At The Stockbridge School Agricultural Learning Center, Samantha R. Anderson

Landscape Architecture & Regional Planning Masters Projects

The Stockbridge School Agricultural Learning Center (SSALC) will be a 40-acre hands-on agricultural learning laboratory for students, staff, visitors, and neighbors. Still in its planning phases, the Center will be located on what is currently a hay field just north of UMass Amherst campus. A conceptual master plan was created in 2013 that is being used for fundraising as well as planning for agricultural demonstration plots and architectural hubs. Improperly managed agricultural landscapes are known as one of the biggest threats to water quality in the United States. As a model of forward thinking agricultural practices, properly managed stormwater on …


Uncertainty In Climatic Change Impacts On Multiscale Watershed Systems, Olga V. Tsvetkova Sep 2013

Uncertainty In Climatic Change Impacts On Multiscale Watershed Systems, Olga V. Tsvetkova

Open Access Dissertations

Uncertainty in climate change plays a major role in watershed systems. The increase in variability and intensity in temperature and precipitation affects hydrologic cycle in spatial and temporal dimensions. Predicting uncertainty in climate change impacts on watershed systems can help to understand future climate-induced risk on watershed systems and is essential for designing policies for mitigation and adaptation. Modeling the temporal patterns of uncertainties is assessed in the New England region for temperature and precipitation patterns over a long term. The regional uncertainty is modeled using Python scripting and GIS to analyze spatial patterns of climate change uncertainties over space …


Conesus Lake 2008: Baseline Data On The Stream Bank Restoration Project, Update On Water Quality Of Usda Monitored Watersheds, Joseph C. Makarewicz, Theodore W. Lewis, Christiann Severson May 2013

Conesus Lake 2008: Baseline Data On The Stream Bank Restoration Project, Update On Water Quality Of Usda Monitored Watersheds, Joseph C. Makarewicz, Theodore W. Lewis, Christiann Severson

Joseph C Makarewicz

Conesus Lake is fed by 18 tributaries and a number of smaller streams and rivulets (Forest et al. 1978). The terrain in the watershed is characterized by gentle slopes at the northern outlet and southern inlet areas. Steep hilly slopes characterize the flanks and southern portion of the watershed. For example, from the middle third of the lake to the southern end of the watershed, the lake and valley are flanked by steep slopes exceeding 45 percent. The soils of the Conesus Lake watershed are mostly derived from locally-occurring shale and sandstone bedrock material that has been reworked by glacial …


Evaluation Of Non-Stationarity In Annual Maximum Flood Series Of Moderately Impaired Watersheds In The Upper Midwest And Northeastern United States, Neila Salvadori Jan 2013

Evaluation Of Non-Stationarity In Annual Maximum Flood Series Of Moderately Impaired Watersheds In The Upper Midwest And Northeastern United States, Neila Salvadori

Dissertations, Master's Theses and Master's Reports - Open

United States federal agencies assess flood risk using Bulletin 17B procedures which assume annual maximum flood series are stationary. This represents a significant limitation of current flood frequency models as the flood distribution is thereby assumed to be unaffected by trends or periodicity of atmospheric/climatic variables and/or anthropogenic activities. The validity of this assumption is at the core of this thesis, which aims to improve understanding of the forms and potential causes of non-stationarity in flood series for moderately impaired watersheds in the Upper Midwest and Northeastern US. Prior studies investigated non-stationarity in flood series for unimpaired watersheds; however, as …


Integrated Assessment Of Anthropogenic, Climate, And Policy Induced Changes Of Phosphorus Export In The United States Laurentian Great Lakes Watersheds, Meredith Ballard Labeau Jan 2012

Integrated Assessment Of Anthropogenic, Climate, And Policy Induced Changes Of Phosphorus Export In The United States Laurentian Great Lakes Watersheds, Meredith Ballard Labeau

Dissertations, Master's Theses and Master's Reports - Open

Anthropogenic activities have increased phosphorus (P) loading in tributaries to the Laurentian Great Lakes resulting in eutrophication in small bays to most notably, Lake Erie. Changes to surface water quality from P loading have resulted in billions of dollars in damage and threaten the health of the world’s largest freshwater resource. To understand the factors affecting P delivery with projected increasing urban lands and biofuels expansion, two spatially explicit models were coupled. The coupled models predict that the majority of the basin will experience a significant increase in urban area P sources while the agriculture intensity and forest sources of …


Water Quality Trends For Section 319 Priority Watersheds In Northwest Arkansas, 1997-2010, Bryan William Bailey Dec 2011

Water Quality Trends For Section 319 Priority Watersheds In Northwest Arkansas, 1997-2010, Bryan William Bailey

Graduate Theses and Dissertations

Northwest Arkansas contains two Section 319 Priority Watersheds that the Arkansas Natural Resources Commission (ANRC) has identified as being impacted by point and nonpoint sources of pollution (i.e., phosphorus, nitrogen, and sediment), and the Arkansas Water Resources Center (AWRC) has monitored the water quality at several sites within these watersheds. Water-quality data has been collected over the last decade within the Illinois River Watershed (HUC #11110103) and the Upper White River Basin (Beaver Reservoir HUC# 11010001), each watershed containing three sampling sites. The Illinois River Watershed sites are located on the Illinois River, Osage Creek, and Ballard Creek, and the …


Geospatial Tools And Techniques For Watershed Management Using Swat 2009, Naresh Pai Dec 2011

Geospatial Tools And Techniques For Watershed Management Using Swat 2009, Naresh Pai

Graduate Theses and Dissertations

In this study, geospatial tools and techniques were developed to support specific aspects of watershed pollution management, such as quantifying land-use change (LUC) impacts, prioritizing subwatersheds, and communicating field-scale impacts, using the soil and water assessment tool 2009 (SWAT 2009) model.

For the land-use change objective, a geospatial tool titled SWAT2009_LUC was developed that enables SWAT modelers to prepare specific input files for simulating concurrent land-use changes during the SWAT 2009 model simulations. Testing of the tool for the Illinois River Drainage Area in Arkansas (IRDAA) watershed showed that the tool accurately represented temporal land-uses within the model. Model simulations …


Slides: Geospatial Decision Support For Shale Gas Site Development, Malcolm Williamson, Jackson Cothren, Peter Smith Oct 2010

Slides: Geospatial Decision Support For Shale Gas Site Development, Malcolm Williamson, Jackson Cothren, Peter Smith

Opportunities and Obstacles to Reducing the Environmental Footprint of Natural Gas Development in Uintah Basin (October 14)

Presenter: Malcolm Williamson, Center for Advanced Spatial Technologies, University of Arkansas

50 slides


Trace Metal Fluxes In Southwest Ohio Watersheds, Avani Naik Jan 2010

Trace Metal Fluxes In Southwest Ohio Watersheds, Avani Naik

Browse all Theses and Dissertations

Land-use and watershed characteristics affect the cycling and transport of trace metals in rivers. I investigated the influence of different land uses and water physicochemistry on loadings, partitioning, and speciation of Hg, Zn, Cr, Ni, V, Cd, Cu, and Pb in three contrasting watersheds near the Dayton, Ohio metropolitan area over a 13-month period; Wolf Creek (urban/residential), Holes Creek (urban/residential), and Little Miami River (agricultural). Metal concentrations were related positively to discharge in each stream. Dissolved organic ligands appear to influence trace-metal partitioning between filtered and particle phases, however, particle-associated metals were dominant in each site. Total Hg concentrations and …


Evaluation Of Best Management Practices To Reduce Nutrients Runoff In Watersheds In Arkansas, Hector German Rodriguez Diaz Dec 2009

Evaluation Of Best Management Practices To Reduce Nutrients Runoff In Watersheds In Arkansas, Hector German Rodriguez Diaz

Graduate Theses and Dissertations

There are many non point sources (NPS) of pollution issues across the state of Arkansas. Each region of the state has different concerns. Many watersheds have been included in the Arkansas's 2008 303(d) list for NPS impairments with sediment and nutrients being the primary causes of concern. This research hypothesized that there are no cost or net returns risks when adopting best management practices (BMPs) to control nutrients runoff and that selection, timing, placement and cost have no impact on the implementation of BMPs. Using two priority watersheds, the L'Anguille River and the Lincoln Lake, as examples, the environmental benefits …


Wilson Inlet Catchment Appraisal 2007, Ron Master Jan 2009

Wilson Inlet Catchment Appraisal 2007, Ron Master

Resource management technical reports

No abstract provided.


Slides: The Urbanizing West: Limits To Water, Limits To Growth, Lora A. Lucero Jun 2008

Slides: The Urbanizing West: Limits To Water, Limits To Growth, Lora A. Lucero

Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6)

Presenter: Lora A. Lucero, AICP, American Planning Association

18 slides