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Full-Text Articles in Physical Sciences and Mathematics

Corn And Soybean Response To Wastewater-Recycled Phosphorus Fertilizers, Shane Ylagan Dec 2020

Corn And Soybean Response To Wastewater-Recycled Phosphorus Fertilizers, Shane Ylagan

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

The ability to recycle phosphorus (P) from wastewaters could provide a sustainable, continuous source of P that might also help protect surface water quality from P enrichment. The mineral struvite (MgNH4PO4·6H2O) is an understudied material that can be created from Pcontaining wastewater and has been shown to have agricultural fertilizer value. The objective of this study was to evaluate the effects of electrochemically precipitated struvite (ECST), chemically precipitated struvite (Crystal Green; CG), diammonium phosphate (DAP), monoammonium phosphate (MAP), rock phosphate (RP), and triple super phosphate (TSP) on corn (Zea mays) and soybean (Glycine max) response in a 79-day greenhouse ...


Energy Intensity Variation Among California Urban Water Supplies, Madeline Willett May 2020

Energy Intensity Variation Among California Urban Water Supplies, Madeline Willett

Master's Projects and Capstones

Drought, population growth, and warmer temperatures will continue to strain and stress California's water supplies. Surface water and groundwater will not suffice as primary water supplies in the future. As California looks to build a more resilient water supply portfolio, the energy intensity of the water supplies in California could increase. This study examines 4 cities in California and their varied water supplies. Urban Water Management Plans (UWMP) are used to calculate the projected change in energy intensity of each city's supply. The results show that there is such variation in climate and water supply sources across California ...


A Review Of The Methods And Metrics In Research, Implementation, And Management Of Integrated Multi-Trophic Aquaculture, Cassandra Erickson May 2020

A Review Of The Methods And Metrics In Research, Implementation, And Management Of Integrated Multi-Trophic Aquaculture, Cassandra Erickson

Master's Projects and Capstones

As seafood demand rises with the growing population, methods of providing sustainable and reliable protein are needed. Wild fishery stocks have decreased so aquaculture is seen as the way to meet these growing demands. The aquaculture industry has continued to grow 8.3% every year since 1970 primarily through using intensive cultivation of a single species creating negative effects on the marine environment. An increase in nutrients from these intensive cultivations can lead to eutrophication, a decrease in oxygen, and alter the ecosystem structure and biodiversity. Integrated multi-trophic aquaculture (IMTA) aims to offset the increased input of nutrients through fish ...


What Is The U.S. Drought Monitor?, National Drought Mitigation Center May 2020

What Is The U.S. Drought Monitor?, National Drought Mitigation Center

Publications of the National Drought Mitigation Center

The USDA uses the map as a trigger for programs that help agricultural producers recover from drought and other natural disasters:

Livestock Forage Disaster Program (LFP)

Emergency Assistance for Livestock, Honeybees, and Farm Raised Fish Program (ELAP)

Fast-Track Secretarial Disaster Declarations

Emergency Loans Program


The U.S. Drought Monitor Network: Improving Drought Early Warning, The U.S. Drought Monitor Network May 2020

The U.S. Drought Monitor Network: Improving Drought Early Warning, The U.S. Drought Monitor Network

Publications of the National Drought Mitigation Center

WHAT IS THE U.S. DROUGHT MONITOR NETWORK?

WHO ARE THE OBSERVERS?

WHAT BENEFITS?

The network in action

HOW DOES IT WORK?

WHO CREATES THE MAP?


Zenneck Waves In Decision Agriculture: An Empirical Verification And Application In Em-Based Underground Wireless Power Transfer, Usman Raza, Abdul Salam May 2020

Zenneck Waves In Decision Agriculture: An Empirical Verification And Application In Em-Based Underground Wireless Power Transfer, Usman Raza, Abdul Salam

Faculty Publications

In this article, the results of experiments for the observation of Zenneck surface waves in sub GHz frequency range using dipole antennas are presented. Experiments are conducted over three different soils for communications distances of up to 1 m. This empirical analysis confirms the existence of Zenneck waves over the soil surface. Through the power delay profile (PDP) analysis, it has been shown that other subsurface components exhibit rapid decay as compared to the Zenneck waves. A potential application of the Zenneck waves for energy transmission in the area of decision agriculture is explored. Accordingly, a novel wireless through-the-soil power ...


Building Adaptive Capacity In Tribal Communities Of The Missouri River Basin To Manage Drought And Climate Extremes: A Case Study From The Wind River Indian Reservation, Crystal J. Stiles, Natalie Umphlett, Mitch Cottenoir May 2020

Building Adaptive Capacity In Tribal Communities Of The Missouri River Basin To Manage Drought And Climate Extremes: A Case Study From The Wind River Indian Reservation, Crystal J. Stiles, Natalie Umphlett, Mitch Cottenoir

HPRCC Personnel Publications

Native American peoples of the Northern and Central Plains have long endured harsh climate conditions, such as floods and droughts, and they possess valuable traditional knowledges that have enhanced their resilience to these extreme events. However, in recent times, limited capacity to adapt to a rapidly changing climate combined with a lack of resources have increased tribes’ vulnerability to climate extremes and their associated impacts. In response, a number of projects have been developed to assist tribes with their self-identified climate- and drought-related needs, particularly in the context of on-reservation decision-making. In this case study, we present an engagement strategy ...


Charismatic Predators In Modern Africa: Spotted Hyena (Crocuta Crocuta) And Human Coexistence In The Northern Tuli Game Reserve, Botswana, Jazmin Castillo May 2020

Charismatic Predators In Modern Africa: Spotted Hyena (Crocuta Crocuta) And Human Coexistence In The Northern Tuli Game Reserve, Botswana, Jazmin Castillo

Dissertations & Theses in Natural Resources

Increasing human populations has led researchers to investigate the impacts of high human population density and its impact on carnivore populations. Spotted hyenas (Crocuta crocuta) hold a unique place in African ecosystems due to being a very successful top predator with an adaptable diet whereas other top predators, like the African lion, are rapidly decreasing in abundance. We investigated past and current spotted hyena abundance within the Northern Tuli Game Reserve to better aid in wildlife management. Spotted hyenas showed no significant difference in the change in population abundance throughout the different years of the study (2008-2016). Spotted hyena populations ...


Private Land, Public Trust: Strategic Conservation Planning For Public Wildlife On Private Lands Through The Usfws Partners For Fish And Wildlife Program, Clint Wirick May 2020

Private Land, Public Trust: Strategic Conservation Planning For Public Wildlife On Private Lands Through The Usfws Partners For Fish And Wildlife Program, Clint Wirick

All Graduate Plan B and other Reports

Law requires federal agencies to develop long-term strategic plans. Strategic plans define goals, objectives, and performance measures defining how the agencies and programs will reach their stated goals. U.S. Fish and Wildlife Service’s Partners for Fish and Wildlife (PFW) develops strategic plans every five years. Each individual state develops a plan for their respective state. Those state plans are compiled for the region and become part of Regional Comprehensive Strategic Plan. The current strategic plan expires in 2021. States will begin the strategic planning process in 2020. In Utah, PFW staff will also begin developing a strategic plan ...


Irrigation Design In Montana: Accommodating Varying Water Accessibility Across The Continental Divide., John Garrett Lampson May 2020

Irrigation Design In Montana: Accommodating Varying Water Accessibility Across The Continental Divide., John Garrett Lampson

Biological and Agricultural Engineering Undergraduate Honors Theses

The design work performed in this project was conducted over two summers (2018, 2019) of internship experience with the Natural Resources Conservation Service (NRCS) across the state of Montana. The first summer’s design work was based out of Glendive, MT, in Dawson County, approximately 50 kilometers from the North Dakota border. The second summer was in Missoula, MT, in Missoula County, near the Idaho border. The two areas differ significantly in topography, weather, and water availability with the main separating geographic influence being the Rocky Mountains.

This paper focuses on the design process and requirements for two farms located ...


Changes In Land Use Land Cover (Lulc), Surface Water Quality And Modelling Surface Discharge In Beaver Creek Watershed, Northeast Tennessee And Southwest Virginia, Tosin James May 2020

Changes In Land Use Land Cover (Lulc), Surface Water Quality And Modelling Surface Discharge In Beaver Creek Watershed, Northeast Tennessee And Southwest Virginia, Tosin James

Electronic Theses and Dissertations

Beaver Creek is an impaired streams that is not supporting its designated use for recreation due to Escherichia coli (E.coli), and sediment. To address this problem, this thesis was divided into two studies.

The first study explored changes in Land Use Land Cover (LULC), and its impact on surface water quality. Changes in E.coli load between 1997-2001 and 2014-2018 were analyzed. Also, Landsat data of 2001, and 2018 were examined in Terrset 18.31. Mann-Whitney test only showed a significant reduction in E.coli for one site. Negative correlation was established between E.coli load, and Developed LULC ...


Arcgis Analysis Of Riparian Zone Restoration Potential In The Middle Creek – Penns Creek Huc-12 Watershed, Julie Benco Apr 2020

Arcgis Analysis Of Riparian Zone Restoration Potential In The Middle Creek – Penns Creek Huc-12 Watershed, Julie Benco

Senior Scholars Day

The Middle Creek – Penns Creek HUC-12 watershed contains 48.9 miles of impaired streams out of the greater 73.1 miles of waterways within its capacity. The known impaired streams fail, by the water quality standards set by the Department of Environmental Protection, to meet the qualifications necessary to obtain their regulated attainments. In order to restore the waterways, best management practices (BMPs) can be installed to reduce nutrients, such as nitrogen and phosphorous, and sediment loads. ArcGIS and Model my Watershed are utilized to produce a spatial analysis of the watershed and model how the best management practices will ...


The Impact Of Lake Stratification On Biogeochemical Cycling And Downstream Water Quality: Case Study Of Faylor And Walker Lakes In Snyder County, Pa, Trent Millum Apr 2020

The Impact Of Lake Stratification On Biogeochemical Cycling And Downstream Water Quality: Case Study Of Faylor And Walker Lakes In Snyder County, Pa, Trent Millum

Senior Scholars Day

In recent years, dams have received extensive scrutiny for their effects on stream and river systems throughout the United States. Dams vary greatly in size and scale, but investigations often focus on large-scale dams because of their visibility in the public eye and pronounced impact. This can result in smaller and less impactful impoundments being overlooked, despite the cumulative impacts these dams can have on higher order water systems. Two small water impoundments, Walker and Faylor Lakes located respectively on the north and west branches of Middle Creek in Snyder County, Pennsylvania have demonstrated an impact on Middle Creek. This ...


The Effects Of Temperature On Evacuation Rates And Absorption Efficiency Of Flathead Catfish, Zach Horstman Apr 2020

The Effects Of Temperature On Evacuation Rates And Absorption Efficiency Of Flathead Catfish, Zach Horstman

Dissertations & Theses in Natural Resources

Knowledge of fish gastric evacuation rates are a necessary component for both field and laboratory studies when trying to understand feeding rates, modeling energy budgets, and understanding trophic dynamics of aquatic ecosystems. Many freshwater fish encounter a broad range of environmental temperatures across life history stages, but the mechanistic link between temperature and physiological processes often remains poorly understood. We designed three recirculating aquatic systems capable of rearing Flathead Catfish Plyodictis olivaris in order to quantify gastric evacuation rates and gross energy absorption at three temperatures (17º C, 22º C and 25º C). We examined the relationship between temperature and ...


In Hot Water: Influence Of Multiple Stressors On Thermal Tolerance Of Fathead Minnows Pimephales Promelas, Alexander Engel Apr 2020

In Hot Water: Influence Of Multiple Stressors On Thermal Tolerance Of Fathead Minnows Pimephales Promelas, Alexander Engel

Dissertations & Theses in Natural Resources

Freshwater aquatic systems around the globe are often subjected to physical, biological, and chemical alterations to support societal needs. The Great Plains contains one of the largest agricultural industries in North America, but its productivity has ecological repercussions for adjacent freshwater ecosystems. Specifically, the dependency on surface water irrigation and application of chemical treatments has altered the thermal and chemical composition of freshwater ecosystems throughout the region. Stressors such as elevated temperatures, altered flow regimes, increased contaminant loads affect the physiology and behavior of fishes and can lead to long-term population effects. We examined thermal tolerance of Fathead minnows Pimephales ...


Impact Of Streambank Stabilization On Sediment Deposition And Erosion In Central Nebraska Streams, Matthew Russell Apr 2020

Impact Of Streambank Stabilization On Sediment Deposition And Erosion In Central Nebraska Streams, Matthew Russell

Dissertations & Theses in Natural Resources

Stabilization projects are increasingly used to mitigate the effects of anthropogenic streambank erosion, yet the effectiveness of these practices has been insufficiently monitored and assessed to date. Sound monitoring practices promote engineered effectiveness, in addition to allowing adjustments in implementation and maintenance to improve practices over time. However, current methods to quickly and efficiently quantify deposition and erosion within a stream continue to be costly and inefficient. Therefore, the objectives of this project were to 1) Measure streambank migration of three reaches at Cedar River in Nebraska, from 1993 to 2006 (pre-stabilization) and from 2006 to 2018 (post-stabilization) using aerial ...


Water Supply Capacity Development In The Context Of Global Change, Patrick Breach Apr 2020

Water Supply Capacity Development In The Context Of Global Change, Patrick Breach

Electronic Thesis and Dissertation Repository

The ANEMI model is an integrated assessment model of global change that emphasizes the role of water resources. The model is based on the principles of system dynamics simulation in order to analyze changes in the Earth system using feedback processes. Securing water resources for the future is a key issue of global change, and ties into global systems of population growth, climate change carbon cycle, hydrologic cycle, economy, energy production, land use and pollution generation.

This thesis focusses on the development of global water supplies necessary to keep pace with a growing population and global economy using an integrated ...


Water 4.0, Arthur Preston Apr 2020

Water 4.0, Arthur Preston

OHSU-PSU School of Public Health Annual Conference

A review of local drinking water quality/technologies, and strategies to improve water quality using emerging next generation technology.


Exploring How Graduates Of The Nebraska Water Leaders Academy Influence Community Capitals: Two Case Studies, Dakota Staggs Apr 2020

Exploring How Graduates Of The Nebraska Water Leaders Academy Influence Community Capitals: Two Case Studies, Dakota Staggs

Dissertations & Theses in Natural Resources

Natural resources are foundational to any community and so leadership regarding those resources is a key factor to consider in order to understand communities. The vitality and strength of a community, however, is not solely dependent upon the natural resources available to it but depends on the collection of assets and individuals within it. This study sought to understand how individual leaders, graduates of the Nebraska Water Leaders Academy, influence each of the seven community capitals outlined by Flora, Flora, and Gasteyer (2016), and how their individual civic capacity, as defined by Sun and Anderson (2012), contribute to community capacity ...


Geochemical Analyses Of Base Metals In Sediments And Stream Water Black Cypress Bayou, Marion County, Texas, Melanie L. Ertons Apr 2020

Geochemical Analyses Of Base Metals In Sediments And Stream Water Black Cypress Bayou, Marion County, Texas, Melanie L. Ertons

Undergraduate Research Conference

Black Cypress Bayou is a primary tributary of Caddo Lake watershed in eastern Texas. The watershed is underlain by Eocene-aged strata from the Wilcox and Claiborne groups, which represent transgressive/regressive shoreline fluctuations that deposited interbedded friable sandstones and mudstones. The Wilcox Group is of special interest because it contains lignite coal, which has a direct link to heavy metals in sediment and natural waters. Caddo Lake has been listed on the Texas Commission on Environmental Quality 303(d) list for impairment due to mercury in edible tissue since 1995 and Black Cypress Bayou has been listed for impaired waters ...


Sustainable Wastewater Treatment In The American South, Caroline Miles Apr 2020

Sustainable Wastewater Treatment In The American South, Caroline Miles

Master's Theses

Aging infrastructure and changing social and environmental conditions are two factors that are currently pushing wastewater treatment towards more sustainable methods. This thesis investigates what sustainable treatment technologies are being used in the American South through a focused sample of six cities across the region: Austin, Texas; Fayetteville, Arkansas; Hattiesburg, Mississippi; Memphis, Tennessee; Ocean Springs, Mississippi; and Tuscaloosa, Alabama. The study assesses the types of sustainable treatment technology utilized at each facility, the perspectives of wastewater professionals about the technology, and the economic and environmental sustainability of each facility. Data was collected through direct observations on tours of the facilities ...


Water Scarcity And Fish Imperilment Driven By Beef Production, Brian D. Richter, Dominique Bartak, Peter Caldwell, Kyle Fankel Davis, Peter Debaere, Arjen Y. Hoekstra, Tianshu Li, Landon Marston, Ryan Mcmanamay, Mesfin Mergia Mekonnen, Benjamin L. Ruddell, Richard R. Rushforth, Tara J. Troy Apr 2020

Water Scarcity And Fish Imperilment Driven By Beef Production, Brian D. Richter, Dominique Bartak, Peter Caldwell, Kyle Fankel Davis, Peter Debaere, Arjen Y. Hoekstra, Tianshu Li, Landon Marston, Ryan Mcmanamay, Mesfin Mergia Mekonnen, Benjamin L. Ruddell, Richard R. Rushforth, Tara J. Troy

Daugherty Water for Food Global Institute: Faculty Publications

Human consumption of freshwater is now approaching or surpassing the rate at which water sources are being naturally replenished in many regions, creating water shortage risks for people and ecosystems. Here we assess the impact of human water uses and their connection to water scarcity and ecological damage across the United States, identify primary causes of river dewatering and explore ways to ameliorate them. We find irrigation of cattle-feed crops to be the greatest consumer of river water in the western United States, implicating beef and dairy consumption as the leading driver of water shortages and fish imperilment in the ...


A Hydrometeorological Assessment Of The Historic 2019 Flood Of Nebraska, Iowa, And South Dakota, Paul Xavier Flanagan, Rezaul Mahmood, Natalie Umphlett, Erin M.K. Haacker, Chittaranjan Ray, Bill Sorensen, Martha Shulski, Crystal J. Stiles, David Pearson, Paul Fajman Apr 2020

A Hydrometeorological Assessment Of The Historic 2019 Flood Of Nebraska, Iowa, And South Dakota, Paul Xavier Flanagan, Rezaul Mahmood, Natalie Umphlett, Erin M.K. Haacker, Chittaranjan Ray, Bill Sorensen, Martha Shulski, Crystal J. Stiles, David Pearson, Paul Fajman

HPRCC Personnel Publications

During early 2019, a series of events set the stage for devastating floods in eastern Nebraska, western Iowa, and southeastern South Dakota. When the floodwaters hit, dams and levees failed, cutting off towns, while destroying roads, bridges, and rail lines, further exacerbating the crisis. Lives were lost and thousands of cattle were stranded. Estimates indicate that the cost of the flooding has topped $3 billion as of August 2019, with this number expected to rise.

After a warm and wet start to winter, eastern Nebraska, western Iowa, and southeastern South Dakota endured anomalously low temperatures and record-breaking snowfall. By March ...


Understanding The Effects Of Above- And Belowground Linkages On Carbon Cycling In A High Latitude, Coastal Wetland, Trisha Atwood Mar 2020

Understanding The Effects Of Above- And Belowground Linkages On Carbon Cycling In A High Latitude, Coastal Wetland, Trisha Atwood

Funded Research Records

No abstract provided.


Evaluating W.A.S.H. (Water, Sanitation And Hygiene) Interventions In Rural Schools Of West Bengal, India, Akudo Ejelonu, Huiran Feng, Thomas Mckeon Mar 2020

Evaluating W.A.S.H. (Water, Sanitation And Hygiene) Interventions In Rural Schools Of West Bengal, India, Akudo Ejelonu, Huiran Feng, Thomas Mckeon

wH2O: The Journal of Gender and Water

Poor sanitation exacerbates adverse health outcomes such as infectious disease, diarrhea and childhood stunting. People of India suffer from disproportionately high rates of poor sanitation. Diarrheal diseases are preventable and better sanitation can reduce disease transmission through improved access to latrines, hygiene education and clean water. A significant concentration of behaviors related to poor sanitation occurring in India requires sustainability and an assessment of programs working towards improving water access, sanitation and hygiene (WASH). We assessed the health and environmental impact of Non-Governmental Organizations (NGOs) such as Sarboday Sangha and Water for People which implemented WASH projects in about 141 ...


Future Leader In Sustainable Enterprise — Prescilla Awino, Akudo Ejelonu Mar 2020

Future Leader In Sustainable Enterprise — Prescilla Awino, Akudo Ejelonu

wH2O: The Journal of Gender and Water

Prescilla is a trainer and a mentor of teenagers and young adolescent women. She successfully managed the Girls Leadership and Advocacy Series (GALS Kenya), a Program of Women Campaign International (WCI). WCI is a Philadelphia based non-profit organization that empowers women globally to actively participate in civil society, political leadership, economic development and peace building.


Menstrual Health And Hygiene Management And Wash In Urban Slums: Gaps In The Evidence And Recommendations, Sarah J. Goddard Mph, Mia, Marni Sommer Drph, Msn, Rn Mar 2020

Menstrual Health And Hygiene Management And Wash In Urban Slums: Gaps In The Evidence And Recommendations, Sarah J. Goddard Mph, Mia, Marni Sommer Drph, Msn, Rn

wH2O: The Journal of Gender and Water

The rapid urbanization and development of megacities across many low- and middle-income countries creates new challenges in global health; this is particularly true for women and girls who are disproportionately affected by poor urban planning, inadequate sanitation infrastructure, and limited access to water. Urban slums serve to reinforce many gendered inequalities, as reflected in poor sexual and reproductive health outcomes and various other health and wellbeing indicators. Women and adolescent girls in urban slums are particularly vulnerable in relation to their experiences of menstruation, given the limited access they may have to safe, private spaces with water for changing, washing ...


Barriers And Bias: Women In Water Utilities Are Breaking Them All, Swati Hegde Mar 2020

Barriers And Bias: Women In Water Utilities Are Breaking Them All, Swati Hegde

wH2O: The Journal of Gender and Water

Around the world, women are the mainstays of society, from raising children to supporting families to caring for the needy. In developing countries, they are also usually responsible for collecting and providing water for the family. In doing so, their time, health, safety, education and income are compromised. Outdated and undisputed social norms create the biases that force women to bear the responsibility to secure and distribute water, thereby creating barriers to women’s advancement in educational opportunities and significantly reducing income-earning potential. Similarly, in the developed world, outdated social norms create biases and barriers in the water industry that ...


Good Mums: A Gender Equality Perspective On The Constructions Of The Mother In Handwashing Campaigns, Sue Cavill, Chelsea Huggett Mar 2020

Good Mums: A Gender Equality Perspective On The Constructions Of The Mother In Handwashing Campaigns, Sue Cavill, Chelsea Huggett

wH2O: The Journal of Gender and Water

The first part of this paper provides a brief overview of the framing of women in hygiene interventions. The following section provides a review of the literature on best practices for handwashing and hygiene, as framed by discourses on the good mother. The goal of this paper is to illustrate how promotional approaches are targeting mothers to change handwashing and hygiene behavior, and to contrast such interventions with the possibility of more gender transformative approaches. We argue that women don’t always implement the handwashing practices they would prefer. This is clearly not due to laziness and thoughtlessness, and it ...


Gender Contribution In Household Management Of Water And Its Impact On Residents Of Dholak Basti (Slum) In Haldwani City Of India, Yashi Gupta, Riyan Habeeb, Manya Singh, Anvita Pandey, Vishal Singh, Elizabeth Barker Mar 2020

Gender Contribution In Household Management Of Water And Its Impact On Residents Of Dholak Basti (Slum) In Haldwani City Of India, Yashi Gupta, Riyan Habeeb, Manya Singh, Anvita Pandey, Vishal Singh, Elizabeth Barker

wH2O: The Journal of Gender and Water

The paper explores water and gender sensitivity in one of the slum areas of Haldwani City, one of the fastest growing and least studied cities of Uttarakhand. The study is intended to contextualise the analysis of household water management and role of gender with respect to water management in the city. First, a city-wide ward wise analysis was conducted to identify wards with low socio-economic profile and high illiteracy based on Census of India, 2011 data and analysed spatially in Geographical Information System (GIS). The spatial analysis was followed by primary surveys in one of the identified wards and statistical ...