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Evaluating Hourly Rainfall Characteristics Over The U.S. Great Plains In Dynamically Downscaled Climate Model Simulations Using Nasa-Unified Wrf, Huikyo Lee, Duane E. Waliser, Robert Ferraro, Takamichi Iguchi, Christa D. Peters-Lidard, Baijun Tian, Paul C. Loikith, Daniel B. Wright Jan 2017

Evaluating Hourly Rainfall Characteristics Over The U.S. Great Plains In Dynamically Downscaled Climate Model Simulations Using Nasa-Unified Wrf, Huikyo Lee, Duane E. Waliser, Robert Ferraro, Takamichi Iguchi, Christa D. Peters-Lidard, Baijun Tian, Paul C. Loikith, Daniel B. Wright

Geography Faculty Publications and Presentations

Accurate simulation of extreme precipitation events remains a challenge in climate models. This study utilizes hourly precipitation data from ground stations and satellite instruments to evaluate rainfall characteristics simulated by the NASA-Unified Weather Research and Forecasting (NU-WRF) regional climate model at horizontal resolutions of 4, 12, and 24 km over the Great Plains of the United States. We also examined the sensitivity of the simulated precipitation to different spectral nudging approaches and the cumulus parameterizations. The rainfall characteristics in the observations and simulations were defined as an hourly diurnal cycle of precipitation and a joint probability distribution function (JPDF) between …

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City Of Gresham Stormwater Retrofit Master Plan, Teresa F. Huntsinger Jan 2017

City Of Gresham Stormwater Retrofit Master Plan, Teresa F. Huntsinger

Civil and Environmental Engineering Master's Project Reports

The Stormwater Retrofit Master Plan identifies more than 50 stormwater retrofit project opportunities across three watersheds in the City of Gresham. The retrofit projects are prioritized in a scoring system to evaluate the costs and benefits of diverse project sizes and types. Project types range from bioswales and planters in city parking lots and along arterial roads, to regional end-of-pipe facilities and retrofits of existing detention ponds. Top projects will move forward for further assessment, design and construction, helping the city achieve its water quality improvement goals. The scoring system may be used to evaluate additional projects in the future.

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Information Technology Approaches To Forest Management, Mary Snow, Richard Snow Jan 2017

Information Technology Approaches To Forest Management, Mary Snow, Richard Snow

Publications

The majority of the world’s forests occur where there is a dry season long enough to affect a seasonal change in the forest community. The seasonal forest may include evergreen, semi-deciduous, deciduous trees, or some combination of these. Local differences in soil or other site characteristics often determine which community persists. Since the seasonal forests exist where there is seasonal precipitation, the character of the forest is closely associated with the length of the rainy season. As the length of the rainy season decreases, the density of the canopy decreases. If the global climate system warms and prolonged drought gives …

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Deadly Heat Waves Projected In The Densely Populated Agricultural Regions Of South Asia, Eun-Soon Im, Jeremy S. Pal, Elfatih A. B. Eltahir Jan 2017

Deadly Heat Waves Projected In The Densely Populated Agricultural Regions Of South Asia, Eun-Soon Im, Jeremy S. Pal, Elfatih A. B. Eltahir

Civil and Environmental Engineering Faculty Works

The risk associated with any climate change impact reflects intensity of natural hazard and level of human vulnerability. Previous work has shown that a wet-bulb temperature of 35°C can be considered an upper limit on human survivability. On the basis of an ensemble of high-resolution climate change simulations, we project that extremes of wet-bulb temperature in South Asia are likely to approach and, in a few locations, exceed this critical threshold by the late 21st century under the business-as-usual scenario of future greenhouse gas emissions. The most intense hazard from extreme future heat waves is concentrated around densely populated agricultural …

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Climate Change Adaptation For Southern California Groundwater Managers: A Case Study Of The Six Basins Aquifer, Frank Lyles Jan 2017

Climate Change Adaptation For Southern California Groundwater Managers: A Case Study Of The Six Basins Aquifer, Frank Lyles

Pomona Senior Theses

Groundwater has been very important to the economic development of Southern California, and will continue to be a crucial resource in the 21st century. However, Climate Change threatens to disrupt many of the physical and economic processes that control the flow of water in and out of aquifers. One groundwater manager, the Six Basins Watermaster in eastern Los Angeles and western San Bernardino Counties, has developed a long-term planning document called the Strategic Plan that mostly fails to address the implications of Climate Change, especially for local water supplies. This thesis presents an in-depth analysis of the Six Basin Watermaster’s …

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Social Sustainability: The Role Of Ecotourism In Regenerating Cultural And Environmental Histories In Rio De Janeiro, Nia Mcallister Jan 2017

Social Sustainability: The Role Of Ecotourism In Regenerating Cultural And Environmental Histories In Rio De Janeiro, Nia Mcallister

Pomona Senior Theses

Ecotourism is a rapidly growing global export industry that aims to uphold the ethics of responsible tourism by engaging with local communities and encouraging environmentally conscious travel. With existing critiques of the greenwashing of ecotourism and the tendency for tourism agencies to exploit host communities, I advocate for participatory community-based models of ecotourism. This thesis explores both the material and conceptual benefits of community-based ecotourism through the critical examination of community-based ecotourism projects in Rio de Janeiro Brazil. Focusing on the implementation of ecotourism in of some of Rio de Janeiro’s peripheral communities, areas that are impacted by social and …

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Evaluating The Potential Of A Geospatial/Geostatistical Methodology For Locating Rain-Derived Infiltration And Inflow Into Wastewater Treatment Systems In The Minneapolis/St. Paul Metropolitan Area, Minnesota, Usa, Vinson Aaron Williams Jan 2017

Evaluating The Potential Of A Geospatial/Geostatistical Methodology For Locating Rain-Derived Infiltration And Inflow Into Wastewater Treatment Systems In The Minneapolis/St. Paul Metropolitan Area, Minnesota, Usa, Vinson Aaron Williams

All Graduate Theses, Dissertations, and Other Capstone Projects

A significant issue facing municipal wastewater treatment infrastructure (WWTI) is how to manage infiltration and inflow (I/I). I/I of rain and ground water permeate into WWTI after precipitation events, periods of groundwater table rise, and percolation from surrounding surface waters. This can create discharges above the infrastructure's flow capacity, increase costs for processing the wastewater and add undesired stress to aging wastewater networks. In an attempt to assess this problem cost and time inefficient approaches have commonly been applied. This study utilizes a new and more radical methodology to try and make WWTI management more efficient. This study applies ArcGIS …

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Advancing High Spatial And Spectral Resolution Remote Sensing For Observing Plant Community Response To Environmental Variability And Change In The Alaskan Arctic, Sergio Armando Vargas Jan 2017

Advancing High Spatial And Spectral Resolution Remote Sensing For Observing Plant Community Response To Environmental Variability And Change In The Alaskan Arctic, Sergio Armando Vargas

Open Access Theses & Dissertations

The Arctic is being impacted by climate change more than any other region on Earth. Impacts to terrestrial ecosystems have the potential to manifest through feedbacks with other components of the Earth System. Of particular concern is the potential for the massive store of soil organic carbon to be released from arctic permafrost to the atmosphere where it could exacerbate greenhouse warming and impact global climate and biogeochemical cycles. Even though substantial gains to our understanding of the changing Arctic have been made, especially over the past decade, linking research results from plot to regional scales remains a challenge due …

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Environmental And Climate Justice Along The Brahmaputra River In Northeast India, Costanza Rampini Jan 2017

Environmental And Climate Justice Along The Brahmaputra River In Northeast India, Costanza Rampini

Faculty Publications, Environmental Studies

The glaciers of the Himalayas are the source of all of Asia’s major rivers and are crucial to Asia’s water supply, economies, and livelihoods. The Himalayan region is uniquely vulnerable to the impacts of anthropogenic climate change, while also becoming one of the most dammed regions in the world. This case study explores the unequal distribution of the impacts of climate change and dam building along the Brahmaputra River in Northeast India. It examines how the combined impacts of these two processes negatively affect local communities and explores environmental and climate justice issues. In discussing climate change impacts and hydropower …

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Developing A Hydrological Monitoring Program For Ponds In Wapusk National Park, Manitoba, Using Water Isotope Tracers, Stephanie Roy Jan 2017

Developing A Hydrological Monitoring Program For Ponds In Wapusk National Park, Manitoba, Using Water Isotope Tracers, Stephanie Roy

Theses and Dissertations (Comprehensive)

Northern lake-rich landscapes are vulnerable to increases in surface air temperatures and are changing in dynamic ways. Current meteorological records indicate that some of the greatest warming in the past century has occurred in the Hudson Bay Lowlands (HBL). As the HBL is an extensive wetland consisting of hundreds of thousands of shallow lakes and ponds, it is difficult to anticipate the long-term implications that climate change will have on pond water balance. To develop and implement long-term monitoring of hydrological conditions, sampling of pond water isotope composition has occurred during the past six years in Wapusk National Park (WNP), …

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Permafrost Thaw Induced Changes To Runoff Generation And Hydrologic Connectivity In Low-Relief, Discontinuous Permafrost Terrains, Ryan Connon Jan 2017

Permafrost Thaw Induced Changes To Runoff Generation And Hydrologic Connectivity In Low-Relief, Discontinuous Permafrost Terrains, Ryan Connon

Theses and Dissertations (Comprehensive)

Recent climate warming in northwestern Canada is occurring at an unprecedented rate in recorded history and has resulted in the widespread thaw of permafrost. Where present, permafrost exerts a significant control on local hydrology, and disappearance of permafrost threatens to change the hydrology of northern basins. In the peatlands that characterise the southern distribution of permafrost in low relief terrain, permafrost takes the form of forested peat plateaus and is interspersed by permafrost-free wetlands (i.e. channel fens and flat bogs). Previous field studies have found that channel fens serve as the drainage network and route water to the basin …

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Understanding Community Character As A Socio-Ecological Framework To Enhance Local-Scale Adaptation: An Interdisciplinary Case Study From Rural Northwest Connecticut, Joanna Wozniak-Brown Jan 2017

Understanding Community Character As A Socio-Ecological Framework To Enhance Local-Scale Adaptation: An Interdisciplinary Case Study From Rural Northwest Connecticut, Joanna Wozniak-Brown

Antioch University Dissertations & Theses

Around the world, municipalities are facing new challenges, not the least of which is climate change. This is especially true for rural communities that, for a variety of reasons, will be disproportionately affected by the climatic changes and accompanying policies or programs.

This dissertation, written in manuscript-style, integrates climate change and social-ecological scholarship to address the unique character of rural communities, to communicate the complexity of rural identity through the term "rural character"; and to empower rural communities to incorporate adaptation strategies into their daily municipal operations and planning.

Specifically, this dissertation seeks to answer the following questions: What is …

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A Poetics Of Food In The Bahamas: Intentional Journeys Through Food, Consciousness, And The Aesthetic Of Everyday Life, Hilary B. Booker Jan 2017

A Poetics Of Food In The Bahamas: Intentional Journeys Through Food, Consciousness, And The Aesthetic Of Everyday Life, Hilary B. Booker

Antioch University Dissertations & Theses

This research explores intentional food practices and journeys of consciousness in a network of people in The Bahamas. Intentional food practices are defined as interactions with food chosen for particular purposes, while journeys of consciousness are cumulative successions of events that people associate with healing, restoration, and decolonization personally and collectively. This research examines (1) experiences and moments that influenced people’s intentional food practices; (2) food practices that people enact daily; and (3) how people’s intentional food practices connect to broader spiritual, philosophical, and ideological perspectives guiding their lives. The theoretical framework emerges from a specific lineage of theories and …

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Steinernema Pwaniensis N. Sp., A New Entomopathogenic Nematode (Nematoda: Steinernematidae) From Tanzania, V. Půža, J. Nermut, Z. Mráček, S. Gengler, S. Haukeland Jan 2017

Steinernema Pwaniensis N. Sp., A New Entomopathogenic Nematode (Nematoda: Steinernematidae) From Tanzania, V. Půža, J. Nermut, Z. Mráček, S. Gengler, S. Haukeland

All Peer-Reviewed Publications

A new species of entomopathogenic nematode, Steinernema pwaniensis n. sp., belonging to the glaseri group, is described from Tanzania. The infective juveniles of S. pwaniensis n. sp. are characterized by a body length of 978 μm (808-1131), distance from anterior end to excretory pore of 86 μm (80-95) and a tail length of 87 μm (75-95). The ratios a, c and E% of S. pwaniensis n. sp. are substantially lower than those of all other African 'glaseri' group members. The first-generation males of S. pwaniensis n. sp. can be distinguished by a large spicule length of 92 μm (80-97) and …

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Accumulating Risk: Environmental Justice And The History Of Capitalism In Detroit, 1880-2015, Josiah John Rector Jan 2017

Accumulating Risk: Environmental Justice And The History Of Capitalism In Detroit, 1880-2015, Josiah John Rector

Wayne State University Dissertations

This dissertation is an environmental history of Detroit, Michigan from the 19th century to the present. Recent scholarship on the history of capitalism has largely ignored the problem of environmental inequality, and the negative externalities of economic growth. In contrast, studies of the environmental justice movement have richly documented race, class, and gender inequalities in environmental risk exposure. However, they have neglected the relationship between the development of the environmental justice movement and the restructuring of American capitalism since the 1970s, including deindustrialization and the shift to neoliberalism. Bringing these fields together, this dissertation connects Detroit’s long-term economic transformation to …

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Mesonets: Meso-Scale Weather And Climate Observations For The U.S., Rezaul Mahmood Jan 2017

Mesonets: Meso-Scale Weather And Climate Observations For The U.S., Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.

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Droughts Of The Twentieth And Early Twenty First Centuries: Influences On The Production Of Beef And Forage In Kentucky, Usa, Rezaul Mahmood Jan 2017

Droughts Of The Twentieth And Early Twenty First Centuries: Influences On The Production Of Beef And Forage In Kentucky, Usa, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.

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Future Water Stewardship And Fact-Based Water Policy: An Aquatic Science Education Pathway Model, Rudolph A. Rosen, Erin Scanlon, Johnnie Smith Jan 2017

Future Water Stewardship And Fact-Based Water Policy: An Aquatic Science Education Pathway Model, Rudolph A. Rosen, Erin Scanlon, Johnnie Smith

Water Resources Science and Technology Faculty Publications (Archived)

Texas Aquatic Science originated from a project seeking better ways to educate students about water because of concern that current education was failing to promote good decisions about water by adult citizens and political leaders. A comprehensive water education curriculum was developed to engage learners from middle school through university using an education pathway to create water-savvy citizens of tomorrow who will take personal action to ensure effective stewardship of water and support evidence-based water policies. This paper will describe the pathway and present results of research on the pathway’s effectiveness with middle and high school students and teachers.

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Hard Apple Cider In The New York Hudson Valley Region: A Tourism Study, Meghann Smith, Pankaj Lal Jan 2017

Hard Apple Cider In The New York Hudson Valley Region: A Tourism Study, Meghann Smith, Pankaj Lal

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Hard apple cider production is an emerging industry in apple-growing regions of the United States due to the growing popularity of local craft products in the alcoholic beverage industry. This study strives to understand how hard cideries may affect local product promotion, rural tourism, and agriculture’s economic viability in the Hudson Valley region of New York. Tourism is evolving towards travelling for experiential value; the hard cider industry can offer an authentic environmentally and historically significant experience. By identifying the consumers and their expectations, the possibilities for building tourism specifically surrounding products with regional significance expand significantly. In this study, …

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Degradation Of Crude 4‑Mchm (4-Methylcyclohexanemethanol) In Sediments From Elk River, West Virginia, Isabelle M. Cozzarelli, Denise M. Akob, Mary Jo Baedecker, Tracey Spencer, Jeanne Jaeschke, Darren S. Dunlap, Adam C. Mumford, Amisha T, Poret-Peterson, Douglas B. Chambers Jan 2017

Degradation Of Crude 4‑Mchm (4-Methylcyclohexanemethanol) In Sediments From Elk River, West Virginia, Isabelle M. Cozzarelli, Denise M. Akob, Mary Jo Baedecker, Tracey Spencer, Jeanne Jaeschke, Darren S. Dunlap, Adam C. Mumford, Amisha T, Poret-Peterson, Douglas B. Chambers

United States Geological Survey: Staff Publications

In January 2014, approximately 37 800 L of crude 4-methylcyclohexanemethanol (crude MCHM) spilled into the Elk River, West Virginia. To understand the long-term fate of 4-MCHM, we conducted experiments under environmentally relevant conditions to assess the potential for the 2 primary compounds in crude MCHM (1) to undergo biodegradation and (2) for sediments to serve as a long-term source of 4-MCHM. We developed a solid phase microextraction (SPME) method to quantify the cis- and transisomers of 4-MCHM. Autoclaved Elk River sediment slurries sorbed 17.5% of cis-4-MCHM and 31% of trans-4-MCHM from water during the 2-week experiment. …

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Key Differences Between Lakes And Reservoirs Modify Climate Signals: A Case For A New Conceptual Model, Nicole M. Hayes, Bridget R. Deemer, Jessica R. Corman, N. Roxanna Razavi, Kristin E. Strock Jan 2017

Key Differences Between Lakes And Reservoirs Modify Climate Signals: A Case For A New Conceptual Model, Nicole M. Hayes, Bridget R. Deemer, Jessica R. Corman, N. Roxanna Razavi, Kristin E. Strock

United States Geological Survey: Staff Publications

Lakes and reservoirs are recognized as important sentinels of climate change, integrating catchment and atmospheric climate change drivers. Climate change conceptual models generally consider lakes and reservoirs together despite the possibility that these systems respond differently to climate-related drivers. Here, we synthesize differences between lake and reservoir characteristics that are likely important for predicting waterbody response to climate change. To better articulate these differences, we revised the energy mass flux framework, a conceptual model for the effects of climate change on lentic ecosystems, to explicitly consider the differential responses of lake versus reservoir ecosystems. The model predicts that catchment and …

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A Review Of The Occurrence Of Pharmaceuticals And Personal Care Products In Indian Water Bodies, Keshava Balakrishna, Amlan Rath, Yerabham Praveenkumarreddy, Keerthi Siri Guruge, Bikram Subedi Jan 2017

A Review Of The Occurrence Of Pharmaceuticals And Personal Care Products In Indian Water Bodies, Keshava Balakrishna, Amlan Rath, Yerabham Praveenkumarreddy, Keerthi Siri Guruge, Bikram Subedi

Faculty & Staff Research and Creative Activity

Little information exists on the occurrence and the ultimate fate of pharmaceuticals in the water bodies in India despite being one of the world leaders in pharmaceutical production and consumption. This paper has reviewed 19 published reports of pharmaceutical occurrence in the aquatic environment in India [conventional activated sludge wastewater treatment plants (WTPs), hospital WTPs, rivers, and groundwater]. Carbamazepine (antipsychoactive), atenolol (antihypertensive), triclocarban and triclosan (antimicrobials), trimethoprim and sulfamethoxazole (antibacterials), ibuprofen and acetaminophen (analgesics), and caffeine (stimulant) are the most commonly detected at higher concentrations in Indian WTPs that treat predominantly the domestic sewage. The concentration of ciprofloxacin, sulfamethoxazole, amoxicillin, …

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Recent Land Cover Changes And Sensitivity Of The Model Simulations To Various Land Cover Datasets For China, Rezaul Mahmood Jan 2017

Recent Land Cover Changes And Sensitivity Of The Model Simulations To Various Land Cover Datasets For China, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.

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Characterization Of Ecological Water Stress In The U.S. Great Lakes Region Using A Geospatial Modeling Approach, Sara Alian Jan 2017

Characterization Of Ecological Water Stress In The U.S. Great Lakes Region Using A Geospatial Modeling Approach, Sara Alian

Dissertations, Master's Theses and Master's Reports

Anthropocentric water resources management affects aquatic habitats by changing streamflow regime. Understanding the impacts of water withdrawal from different sources and consumption by various economic sectors at different spatial and temporal scales is key to characterizing ecologically harmful streamflow disturbances. To this end, we developed a generic, integrative framework to characterize catchment scale water stress at annual and monthly time scales. The framework accounts for spatially cumulative consumptive and non-consumptive use impacts and associated changes in flow due to depletion and return flow along the stream network. Application of the framework to the U.S. Great Lakes Region indicates that a …

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Public Perception Of Environmental Programs In The Sierra Gorda Biosphere Reserve, Landa De Matamoros, Queretaro, Mexico, Danielle Marie Salisbury Jan 2017

Public Perception Of Environmental Programs In The Sierra Gorda Biosphere Reserve, Landa De Matamoros, Queretaro, Mexico, Danielle Marie Salisbury

Bard Center for Environmental Policy

Biological or ecological corridors have recently been sought out as a solution to biodiversity loss due to habitat fragmentation. In eastern Mexico, the Mexican and German governments are collaborating to connect fragmented landscapes and Natural Protected Areas (NPAs) over five states across a Madrean Pine-Oak biodiversity hotspot through the implementation of the Ecological Corridor of the Sierra Madre Oriental (CESMO). One of the ways the CESMO is accomplishing its conservation goals is by extending environmental programs that are currently in place within NPAs to other areas within the corridor, but outside of NPA borders. However, the success of the corridor …

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The Relationship Between Ethical Leadership And Sustainability In Small Businesses, David Amisano Jan 2017

The Relationship Between Ethical Leadership And Sustainability In Small Businesses, David Amisano

Walden Dissertations and Doctoral Studies

Since the 2008 financial crisis, business leaders' ethical behaviors have been under scrutiny. These leaders face uncertainty regarding ethical leadership behaviors and their impact. Because small business leadership involves multiple facets of behavior and decision-making, small business leaders may have an insufficient understanding of the impact of ethical leadership behaviors on the sustainability of their businesses. The purpose of this correlational study was to examine the relationship between ethical leadership and financial, social, and environmental sustainability in small businesses. Integrated social contracts theory was the theoretical framework. The participants consisted of 80 members of a chamber of commerce located in …

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Environmental Relocation Policy As Experienced By One Eastern Missouri Dioxin-Contaminated Community, Susan Annette Olsen Jan 2017

Environmental Relocation Policy As Experienced By One Eastern Missouri Dioxin-Contaminated Community, Susan Annette Olsen

Walden Dissertations and Doctoral Studies

Research on environmental relocation is scant and narrow, focusing on a few aspects of permanent relocation and social impacts of natural disasters. As a result, little is known about the long term social impacts of the Environmental Protection Agency's (EPA) environmental relocation policy. A combined conceptual and theoretical framework of Walter's placeways; Ullberg's disaster memoryscapes; Richardson's remembrance and memorialization; Dynes' social capital; and, Norris, Stevens, Pfefferbaum, Wyche, and Pfefferbaum's work on community resilience guided this phenomenological study with the purpose of better understanding competing and complementary roles of each of these constructs in the context of environmental relocation of one …

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Implications Of A Health Careers Exploration Program For Minority Student Matriculation, Angelica Ellman Christie Jan 2017

Implications Of A Health Careers Exploration Program For Minority Student Matriculation, Angelica Ellman Christie

Walden Dissertations and Doctoral Studies

Organizations that deliver programs to promote the entry of students from marginalized populations into the U.S. health workforce often struggle to demonstrate the effective achievement of outcomes, and face diminishing fiscal resources. This study was an empirical examination of the extent and manner that a statewide, precollege, health careers exploration program fostered the matriculation of underrepresented minority students into health degree education programs. Schneider and Stevenson's aligned ambitions framework provided the theoretical foundation. The research questions for this study examined the relationship between program participation and the successful health degree matriculation of racial minority students based on the extent of …

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Social Justice In Social-Ecological Systems: Resilience Through Stakeholder Engagement, Frederick I. Lauer Jan 2017

Social Justice In Social-Ecological Systems: Resilience Through Stakeholder Engagement, Frederick I. Lauer

Graduate Student Theses, Dissertations, & Professional Papers

Successful management of social-ecological systems (SES) is predicated on quality collaborative exchanges between project stakeholders and management. The Southwest Crown of the Continent Collaborative (SWCC) Collaborative Forest Landscape Restoration Program (CFLRP) provided an opportunity to explore landscape scale collaborative management and SES outcomes. Global change and future uncertainty of landscapes prompted the SWCC to employ restoration treatment alternatives throughout 1.4 million acres of forests, most of which are publicly held. The SWCC currently monitors environmental and economic variables, with plans to monitor social variables. This thesis formalizes a proposed framework to investigate SES resilience, and explores public engagement as an …

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Does Timing Of Herbicide Use Influence Rates Of Germination Or Seedling Biomass Of Native Plants Used For Restoration?, Christine Mcmanamen Jan 2017

Does Timing Of Herbicide Use Influence Rates Of Germination Or Seedling Biomass Of Native Plants Used For Restoration?, Christine Mcmanamen

Graduate Student Theses, Dissertations, & Professional Papers

Invasive plants can negatively impact native grasslands by changing their species composition, productivity, and function. Managers commonly use herbicides as a control method; however, this practice can lead to secondary invasion by other non-native invasive plants, unless measures are taken to promote natives. Because of this, managers often seed native plants after spraying herbicides. There is evidence, however, that chemical control of invasive plants may reduce the effectiveness of subsequent seed-addition treatments, but there is currently little quantitative information on optimal timing between spraying and seeding or on variation in herbicide sensitivity among native plants commonly used in seed mixes. …

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