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Articles 1 - 30 of 115
Full-Text Articles in Environmental Sciences
Compounding Hazards And Intersecting Vulnerabilities: Experiences And Responses To Extreme Heat During Covid-19, Olga V. Wilhelmi, Peter D. Howe, Mary H. Hayden, Cassandra R. O'Lenick
Compounding Hazards And Intersecting Vulnerabilities: Experiences And Responses To Extreme Heat During Covid-19, Olga V. Wilhelmi, Peter D. Howe, Mary H. Hayden, Cassandra R. O'Lenick
Environment and Society Faculty Publications
Extreme heat is a major threat to human health worldwide. The COVID-19 pandemic, with its complexity and global reach, created unprecedented challenges for public health and highlighted societal vulnerability to hazardous hot weather. In this study, we used data from a three-wave nationally representative survey of 3036 American adults to examine how the COVID-19 pandemic affected extreme heat vulnerability during the summer of 2020. We used mixed effects models to examine the roles of socio-demographic characteristics and pandemic-related factors in the distribution of negative heat effects and experiences across the United States. The survey findings show that over a quarter …
Report: Spatial Facilitation-Inhibition Effects On Vegetation Distribution And Their Associated Patterns, Daniel D'Alessio
Report: Spatial Facilitation-Inhibition Effects On Vegetation Distribution And Their Associated Patterns, Daniel D'Alessio
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
Changes in the spatial distribution of vegetation respond to variations in the production and transportation mechanisms of seeds at different locations subject to heterogeneities, often because of soil characteristics. In semi-arid environments, the competition for water and nutrients pushes the superficial plant’s roots to obtain scarce resources at long ranges. In this report, we assume that vegetation biomass interacts with itself in two different ways, facilitation and inhibition, depending on the relative distances. We present a 1-dimensional Integro-difference model to represent and study the emergence of patterns in the distribution of vegetation.
Modeling Lake Temperature Response To Climate Change In The Alaskan Arctic, Thomas Balkcom
Modeling Lake Temperature Response To Climate Change In The Alaskan Arctic, Thomas Balkcom
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
This thesis study focuses on simulating lake temperature and ice duration for four lakes at the Arctic Long-Term Ecological Research site, near the Toolik Field Station in Alaska. Model projections were driven by the representative global climate model outputs under different carbon emission scenarios. Results show that my simple lake model can reproduce historical lake temperature and ice duration observations, indicating the reliability of the model for future projections. Model projections show that JuneSeptember lake temperatures would increase by 4.3-5.8 °C from the historical period with most progressive carbon emission scenarios, but by 0.7-2.2 °C in the conservative scenarios. Results …
Can The Desiccation Of Great Salt Lake Be Stopped?, Wayne A. Wurtsbaugh, Craig Miller, Sarah E. Null, R. Justin Derose, Peter Wilcock
Can The Desiccation Of Great Salt Lake Be Stopped?, Wayne A. Wurtsbaugh, Craig Miller, Sarah E. Null, R. Justin Derose, Peter Wilcock
Watershed Sciences Faculty Publications
Great Salt Lake is a terminal lake, with its watershed in the Wasatch and Uinta Mountains of Utah, Wyoming and Idaho. Like all terminal lakes, the water inflows are balanced only by evaporative loss from its surface—when inflows decrease the lake shrinks until evaporation matches that inflow.
Uintah County, Uintah County Road #060703a (Amendment), United States Department Of The Interior, Bureau Of Land Management
Uintah County, Uintah County Road #060703a (Amendment), United States Department Of The Interior, Bureau Of Land Management
Environmental Assessments (UT)
This Environmental Assessment (EA) has been prepared to analyze Uintah County's proposal to amend their right-of-way (ROW) UTU-69125-20 (county road #060703A) to include approximately 4.36 miles of road for public commerce, enjoyment, recreation and travel. Uintah County has proposed this project to facilitate management of their County Road system.
Nitrogen Partitioning And Transport Through A Subalpine Lake Measured With An Isotope Tracer, Dave M. Epstein, Wayne A. Wurtsbaugh, Michelle A. Baker
Nitrogen Partitioning And Transport Through A Subalpine Lake Measured With An Isotope Tracer, Dave M. Epstein, Wayne A. Wurtsbaugh, Michelle A. Baker
Watershed Sciences Faculty Publications
We used a stable isotope tracer to measure nitrogen (N) assimilation and transfer through Bull Trout Lake, a 0.3-km2 mountain lake in Idaho, specifically to explore the relative importance of pelagic and benthic producers. was added into the inflow stream above the lake during spring runoff and the resulting mass of tracer was measured within the various ecosystem compartments, including the outflow stream. Although a portion of the moved through the lake quickly due to a low hydraulic residence time during the addition, the tracer was also assimilated rapidly by seston in the water column and at a slower rate …
Winter Ridge Ha Wild Horse Gather And Removal Plan, United States Department Of The Interior, Bureau Of Land Management
Winter Ridge Ha Wild Horse Gather And Removal Plan, United States Department Of The Interior, Bureau Of Land Management
Environmental Assessments (UT)
The Winter Ridge HA encompasses approximately 46,500 acres of public and private land, within Grand and Uintah Counties in Utah. The HA is approximately 90 miles south of Vernal, Utah. The BLM has prepared an environmental assessment (EA) to analyze the environmental impacts associated with the gather and removal; refer to DOI-BLM-UT-010-2010-0208.
Catch, Treat And Release With Limited Removal Red Desert Complex Wild Horse Herd Management Areas (Lost Creek, Stewart Creek, Green Mountain, Crooks Mountain, Antelope Hills), United States Department Of The Interior, Bureau Of Land Management
Catch, Treat And Release With Limited Removal Red Desert Complex Wild Horse Herd Management Areas (Lost Creek, Stewart Creek, Green Mountain, Crooks Mountain, Antelope Hills), United States Department Of The Interior, Bureau Of Land Management
Environmental Assessments (WY)
This Environmental Assessment (EA) has been prepared to disclose and analyze the environmental consequences of a "Catch, Treat and Release (CTR)" of wild horses in the Red Desert Wild Horse Herd Management Area (HMA) Complex. In addition to the proposed action of a CTR gather, removal of wild horses outside identified HMAs within the project area will also be conducted. The HMAs included in this complex are Lost Creek, Stewart Creek, Green Mountain, Crooks Mountain and Antelope Hills (See Area Map, Appendix 2). The EA is a site-specific analysis of potential impacts that could result with the implementation of a …
Environmental Assessment: Proposed Agricultural Research Center, Utah State University Campus, Logan, Utah, Sage Environmental
Environmental Assessment: Proposed Agricultural Research Center, Utah State University Campus, Logan, Utah, Sage Environmental
Environmental Assessments (UT)
Assess the environment on which Utah State University proposes to establish a new facility for the College of Agriculture
Richfield Field Office Planning Area - Proposed Resource Management And Final Environmental Impact Statement, United States Department Of The Interior, Bureau Of Land Management
Richfield Field Office Planning Area - Proposed Resource Management And Final Environmental Impact Statement, United States Department Of The Interior, Bureau Of Land Management
Final environmental Impact Statements (UT)
The Proposed RMP was crafted primarily from the Preferred Alternative presented in the DRMP/DEIS (Alternative B) and includes other decisions within the range of alternatives (Alternatives N, A, C, and D) in response to public comments and internal review. The No Action Alternative (Alternative N) reflects current management. The BLM has removed the DRMP/DEIS Alternative B (Preferred Alternative) from the PRMP/FEIS. The other DRMP/DEIS Alternatives (Alternatives N, A, C, and D) and analyses are carried forward in the PRMP/FEIS only for comparative purposes and to correct some mistakes that were identified during the public comment period.
Moab Field Office Planning Area Proposed Resource Management Plan And Final Environmental Impact Statement, United States Department Of The Interior, Bureau Of Land Management
Moab Field Office Planning Area Proposed Resource Management Plan And Final Environmental Impact Statement, United States Department Of The Interior, Bureau Of Land Management
Final environmental Impact Statements (UT)
This Proposed Resource Management Plan (RMP) and Final Environmental Impact Statement (EIS) describes and analyzes the Proposed Plan and draft alternatives for the planning and management of public lands and resources administered by the Bureau of Land Management (BLM), Moab Field Office. The Moab planning area is located in southeastern Utah and includes approximately 2.5-million acres of land in Grand and San Juan Counties. Within the Moab planning area, the BLM manages approximately 1.8-million acres of BLM-administered public land surface as well as about 29,000 acres of federal mineral estate.
Reclamation: Managing Water In The West, Steinaker Reservoir Normal Water Surface Elevation Increase Final Environmental Assessment And Finding Of No Significant Impact, U.S. Department Of The Interior, Bureau Of Reclamation, W. Russ Findlay
Reclamation: Managing Water In The West, Steinaker Reservoir Normal Water Surface Elevation Increase Final Environmental Assessment And Finding Of No Significant Impact, U.S. Department Of The Interior, Bureau Of Reclamation, W. Russ Findlay
All U.S. Government Documents (Utah Regional Depository)
This document is an environmental assessment (EA) of the proposal to raise the normal water surface elevation from 5517.8 feet above mean sea level (msl) to 5520.5 msl for Steinaker Reservoir in Uintah County, Utah. The Uintah Water Conservancy District (UWCD) has requested Bureau of Reclamation (Reclamation) authorization for this action. The Steinaker State Park, managed by the Utah Division of Parks and Recreation, maintains several campgrounds, an entrance station and other associated buildings and associated infrastructure. Modifications or relocations of some of these facilities would be needed in conjunction with an increase in the reservoir’s normal water surface elevation.
Tumbleweed Exploratory Drilling Environmental Assessment, United States Deparment Of The Interior, Bureau Of Land Management
Tumbleweed Exploratory Drilling Environmental Assessment, United States Deparment Of The Interior, Bureau Of Land Management
All U.S. Government Documents (Utah Regional Depository)
This Environmental Assessment (EA) has been prepared to analyze Stewart Petroleum Corporation’s (Stewart) proposed exploratory natural gas drilling on their Federal leases within the Tumbleweed Oil and Gas Unit (Tumbleweed Unit). This EA is a site-specific analysis of potential impacts that could result with the implementation of Alternative - the Proposed Action; Alternative B – Buried Pipelines; or Alternative C - the No Action Alternative. The EA assists the Bureau of Land Management (BLM) in project planning and ensuring compliance with the National Environmental Policy Act (NEPA), and in making a determination as to whether any “significant” impacts could result …
Lake Mead Complex Final Gather Plan: Environmental Assessment, U.S. Department Of The Interior, Bureau Of Land Management
Lake Mead Complex Final Gather Plan: Environmental Assessment, U.S. Department Of The Interior, Bureau Of Land Management
All U.S. Government Documents (Utah Regional Depository)
This Environmental Assessment (EA) has been prepared by the Bureau of Land Management (BLM) Las Vegas Field Office (LVFO) to analyze the environmental effects of a gather to remove approximately 195 resident wild burros from National Park Service-administered lands adjacent to the El Dorado Mountains, Gold Butte and Muddy Mountains Herd Management Areas (HMAs) within the Lake Mead Complex (LMC) in March 2007. The LMC is located in southern Nevada in Clark County. The BLM Las Vegas Field Office and National Park Service coordinate management activities for wild burros on these public lands within their individual administrative responsibilities through a …
Utah Off-Highway Vehicle Laws And Rules, Utah Dnr State Parks
Utah Off-Highway Vehicle Laws And Rules, Utah Dnr State Parks
All U.S. Government Documents (Utah Regional Depository)
Utah Off-Highway Vehicle Laws and Rules taken from The Utah Off-Highway Vehicle Act and The Utah Board of Parks and Recreation Rules Title 41, Chapter 22, Utah Code Annotated 1953. NOTICE: Though the following laws and rules were screened for accuracy prior to publication, errors may still exist. In addition, changes in law and rule may be made at any time. Readers are encouraged to contact the Utah Division of Parks and Recreation for clarification of any law or rule contained herein.
Aphis’ Plant Inspection Stations: Protecting American Agriculture From Foreign Pests And Diseases, United States Department Fo Agriculture, Animal And Plant Health Inspection Service
Aphis’ Plant Inspection Stations: Protecting American Agriculture From Foreign Pests And Diseases, United States Department Fo Agriculture, Animal And Plant Health Inspection Service
All U.S. Government Documents (Utah Regional Depository)
In today’s global marketplace, the volume of international trade brings increased potential for the introduction of foreign pests, diseases, and noxious weeds that could threaten the safety of American agriculture. The results of such introductions can have a devastating effect on the U.S. food supply, damage our natural resources, and cost hundreds of millions of dollars in eradication and control measures that ultimately result in higher priced agricultural products for the consumer.
Utah Annual Air Monitoring Network Plan 2007 (Final Draft), Division Of Air Quality, Utah State Department Of Environmental Quality
Utah Annual Air Monitoring Network Plan 2007 (Final Draft), Division Of Air Quality, Utah State Department Of Environmental Quality
All U.S. Government Documents (Utah Regional Depository)
The monitoring network has been described in the network reviews from 1982 through 2007. A complete description of each station is located in the station file at the Air Monitoring Center and is available upon request. This network review will focus on the adequacy of the existing network and the changes that are needed. The existing or proposed monitoring stations are reviewed to see if the objectives are being met. The most recent emissions inventories for each pollutant are reviewed along with ambient data gathered in the area and, when available, current computer air pollution dispersion modeling is also reviewed. …
Utah Off-Highway Vehicle Laws And Rules, Utah Dnr State Parks
Utah Off-Highway Vehicle Laws And Rules, Utah Dnr State Parks
All U.S. Government Documents (Utah Regional Depository)
Utah Off-Highway Vehicle Laws and Rules taken from The Utah Off-Highway Vehicle Act and The Utah Board of Parks and Recreation Rules Title 41, Chapter 22, Utah Code Annotated 1953. NOTICE: Though the following laws and rules were screened for accuracy prior to publication, errors may still exist. In addition, changes in law and rule may be made at any time. Readers are encouraged to contact the Utah Division of Parks and Recreation for clarification of any law or rule contained herein.
Final Technical Report: Integrated Restoration Strategies Towards Weed Control On Western Rangelands, Robert Nowak
Final Technical Report: Integrated Restoration Strategies Towards Weed Control On Western Rangelands, Robert Nowak
All U.S. Government Documents (Utah Regional Depository)
Invasive species are having severe ecological (Mack et al. 2000) and economic (Pimentel et al. 2005) impacts on ecosystems around the world. Invasive species can alter many ecosystem processes (Crooks 2002, Walker & Smith 1997) including: water and nutrient availability, such as form and amount of N if the soil (Evans et al. 2001, Sperry et al. 2006); primary productivity, through shifts in growth rates or efficiency of resource use; disturbance regimes, including the type, frequency, and severity of disturbances such as fire (D’Antonio 2002); and community dynamics, such as species replacements (Alvarez & Cushman 2002). The economic losses and …
Scoping Summary Report: Development Of Lower Basin Shortage Guidelines And Coordinated Management Strategies For Lake Powell And Lake Mead, Particularly Under Low Reservoir Conditions, U.S. Department Of The Interior, Bureau Of Reclamation
Scoping Summary Report: Development Of Lower Basin Shortage Guidelines And Coordinated Management Strategies For Lake Powell And Lake Mead, Particularly Under Low Reservoir Conditions, U.S. Department Of The Interior, Bureau Of Reclamation
All U.S. Government Documents (Utah Regional Depository)
The Bureau of Reclamation (Reclamation) acting on behalf of the Secretary of the Department of the Interior (Secretary) proposes to take action to adopt specific Colorado River Lower Basin shortage guidelines and coordinated reservoir management strategies to address operations of Lake Powell and Lake Mead, particularly under low reservoir conditions. This proposed Action will provide a greater degree of certainty to all water users and managers in the Colorado River Basin by providing more detailed guidelines for the operation of Lake Powell and Lake Mead and by allowing water users in the Lower Basin to know when, and by how …
Summary Of Public Scoping Comments For The Oil Shale And Tar Sands Resources Leasing Programmatic Environmental Impact Statement, Argonne National Laboratory
Summary Of Public Scoping Comments For The Oil Shale And Tar Sands Resources Leasing Programmatic Environmental Impact Statement, Argonne National Laboratory
All U.S. Government Documents (Utah Regional Depository)
Section 369(d)(1) of the Energy Policy Act of 2005, Public Law 109-58 (H.R. 6), enacted August 8, 2005, directs the Secretary of the Interior to prepare a programmatic environmental impact statement (PEIS) for a commercial leasing program for oil shale and tar sands (OSTS) resources on public lands in Colorado, Utah, and Wyoming (see Figure 1). Through the Oil Shale and Tar Sands Resources Leasing PEIS, the U.S. Department of the Interior, Bureau of Land Management (BLM) will evaluate decisions regarding which public lands will be open for leasing in the three-state area and under what constraints. The PEIS will …
Revegetation Of Reconstructed Reaches Of The Provo River, Heber Valley, Utah, John A. Rice
Revegetation Of Reconstructed Reaches Of The Provo River, Heber Valley, Utah, John A. Rice
All U.S. Government Documents (Utah Regional Depository)
Prior to the 1950s, the middle Provo River in Utah offered outstanding fish and wildlife habitat. This was due in part to the Provo River freely meandering through the Heber Valley. These bends in the river provided deep holes for fish and a dense streamside forest for many species of birds. This productive habitat was altered in the 1940s and 1950s when the river was dammed, channelized, and forced between dikes (figure 1). These dikes were constructed by the USDI Bureau of Reclamation (USBR) to contain high flows that came from additional water added to the Provo River from transbasin …
Record Of Decision: Operation Of Flaming Gorge Dam Final Environmental Impact Statement, U.S. Bureau Of Reclamation
Record Of Decision: Operation Of Flaming Gorge Dam Final Environmental Impact Statement, U.S. Bureau Of Reclamation
All U.S. Government Documents (Utah Regional Depository)
The Bureau of Reclamation (Reclamation) has completed a final environmental impact statement (EIS) on the operation of Flaming Gorge Dam. The EIS describes the potential effects of modifying the operation of Flaming Gorge Dam to assist in the recovery of four endangered fish, and their critical habitat, downstream from the dam. The four endangered fish species are Colorado pikeminnow (Ptychocheilus lucius), humpback chub (Gila cypha), razorback sucker (Xyrauchen texanus), and bonytail (Gila elegans). Reclamation would implement the proposed action by modifying the operations of Flaming Gorge Dam, to the extent possible, to achieve the flows and temperatures recommended by participants …
Final Environmental Assessment And Finding Of No Significant Impact For The Proposed Safety Of Dams Modifications And Bridge Reconstruction, Provo Area Office, Upper Colorado Region, Bureau Of Reclamation, U.S. Department Of Transportation, Utah Division, Federal Highway Administration, U.S. Department Of The Interior
Final Environmental Assessment And Finding Of No Significant Impact For The Proposed Safety Of Dams Modifications And Bridge Reconstruction, Provo Area Office, Upper Colorado Region, Bureau Of Reclamation, U.S. Department Of Transportation, Utah Division, Federal Highway Administration, U.S. Department Of The Interior
All U.S. Government Documents (Utah Regional Depository)
The Bureau of Reclamation, Provo Area Office (Reclamation) proposes to replace the concrete spillway structure at Scofield Dam, the principal feature of the Scofield Project. This construction project would be completed under the Safety of Dams (SOD) Act of 1978 (Public Law 95-578, as amended). The proposed SOD modifications would correct safety deficiencies of the dam without affecting the purpose, or benefits of the dam. Reclamation also proposes to replace the existing gate house at its current position on the crest of the dam. This building is in poor condition and would be replaced with either a new concrete structure …
Richfield Fire Management Plan Environmental Assessment, U.S. Department Of The Interior, Bureau Of Land Management
Richfield Fire Management Plan Environmental Assessment, U.S. Department Of The Interior, Bureau Of Land Management
All U.S. Government Documents (Utah Regional Depository)
This Environmental Assessment (EA) documents results of an analysis of proposed changes to the current management of wildland fire and hazardous fuels for the Bureau of Land Management (BLM) Richfield Support Center. Proposed revisions of the Richfield Fire Management Plan (FMP) serve as the “Proposed Action” for this EA. The revised FMP incorporates current planning requirements associated with fire management on public lands, including wildland fire management and fuel treatments. The EA analysis is designed to ensure compliance with the National Environmental Policy Act (NEPA). It allows determinations to be made as to whether any “significant,” as defined by the …
Tebuthiuron Ecological Risk Assessment, Bureau Of Land Management, Ensr International
Tebuthiuron Ecological Risk Assessment, Bureau Of Land Management, Ensr International
All U.S. Government Documents (Utah Regional Depository)
The Bureau of Land Management (BLM), United States Department of the Interior (USDI), is proposing a program to treat vegetation on up to six million acres of public lands annually in 17 western states in the continental United States (U.S.) and Alaska. As part of this program, the BLM is proposing the use of ten herbicide active ingredients (a.i.) to control invasive plants and noxious weeds on approximately one million of the 6 million acres proposed for treatment. The BLM and its contractor, ENSR, are preparing a Vegetation Treatments Programmatic Environmental Impact Statement (EIS) to evaluate this and other proposed …
Sulfometuron Methyl Ecological Risk Assessment, Final Report, Bureau Of Land Management, Ensr International
Sulfometuron Methyl Ecological Risk Assessment, Final Report, Bureau Of Land Management, Ensr International
All U.S. Government Documents (Utah Regional Depository)
The Bureau of Land Management (BLM), United States Department of the Interior (USDI), is proposing a program to treat vegetation on up to six million acres of public lands annually in 17 western states in the continental United States (U.S.) and Alaska. As part of this program, the BLM is proposing the use of ten herbicide active ingredients (a.i.) to control invasive plants and noxious weeds on approximately one million of the six million acres proposed for treatment. The BLM and its contractor, ENSR, are preparing a Vegetation Treatments Programmatic Environmental Impact Statement (EIS) to evaluate this and other proposed …
Moab Fire District Fire Management Plan: Environmental Assessment, U.S. Department Of The Interior, Bureau Of Land Management
Moab Fire District Fire Management Plan: Environmental Assessment, U.S. Department Of The Interior, Bureau Of Land Management
All U.S. Government Documents (Utah Regional Depository)
This Environmental Assessment (EA) has been prepared to document results of an analysis of proposed changes to current management of wildland fire and hazardous fuels for the Bureau of Land Management (BLM), Division of Fire Management. The Division of Fire Management oversees all fire-related activities for the Moab, Monticello, and Price Field Offices, referred to in this document as the Moab Fire District. Proposed revisions of the Moab Fire District Fire Management Plan (FMP) serve as the Proposed Action for this EA. The revised FMP incorporates current planning requirements associated with fire management on public lands, including wildland fire suppression …
Reno, Nevada Imazapic Ecological Risk Assessment: Final Report, Ensr International, Bureau Of Land Management
Reno, Nevada Imazapic Ecological Risk Assessment: Final Report, Ensr International, Bureau Of Land Management
All U.S. Government Documents (Utah Regional Depository)
The Bureau of Land Management (BLM), United States Department of the Interior (USDI), is proposing a program to treat vegetation on up to six million acres of public lands annually in 17 western states in the continental United States (U.S.) and Alaska. The primary objectives of the proposed program include fuels management, weed control, and fish and wildlife habitat restoration. Vegetation would be managed using five primary vegetation treatment methods: mechanical, manual, biological, chemical, and prescribed fire. The BLM and its contractor, ENSR, are preparing a Vegetation Treatments Programmatic Environmental Impact Statement (EIS) to evaluate the effects of the proposed …
Overdrive® Ecological Risk Assessment: Final Report, Bureau Of Land Management, Ensr International
Overdrive® Ecological Risk Assessment: Final Report, Bureau Of Land Management, Ensr International
All U.S. Government Documents (Utah Regional Depository)
The Bureau of Land Management (BLM), United States Department of the Interior (USDI), is proposing a program to treat vegetation on up to six million acres of public lands annually in 17 western states in the continental United States (U.S.) and Alaska. As part of this program, the BLM is proposing the use of ten herbicide active ingredients (a.i.) to control invasive plants and noxious weeds on approximately one million of the 6 million acres proposed for treatment. The BLM and its contractor, ENSR, are preparing a Vegetation Treatments Programmatic Environmental Impact Statement (EIS) to evaluate this and other proposed …