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Physical Sciences and Mathematics Commons™

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2000

Environmental Sciences

All U.S. Government Documents (Utah Regional Depository)

Articles 1 - 8 of 8

Full-Text Articles in Physical Sciences and Mathematics

Ely Disrict Managed Natural And Prescribed Fire Plan, United States Department Of The Interior, Bureau Of Land Management Nov 2000

Ely Disrict Managed Natural And Prescribed Fire Plan, United States Department Of The Interior, Bureau Of Land Management

All U.S. Government Documents (Utah Regional Depository)

No abstract provided.

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Management Guidelines For Sage Grouse And Sagebrush Ecosystems In Nevada, Bureau Of Land Management Oct 2000

Management Guidelines For Sage Grouse And Sagebrush Ecosystems In Nevada, Bureau Of Land Management

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These management guidelines and supportive background information promote the conservation of sage grouse (Centrocercus urophasianus) and their sagebrush (Artemisia spp) habitats on Nevada public lands administered by Bureau of Land Management (BLM). The guidelines are intended to provide interim guidance to field managers, without restricting options currently being explored for regional, state, and local sage grouse/sagebrush conservation planning. The guidelines are a Nevada BLM, habitat-specific, adaptation of the recently updated, and soon to be finalized, Western Association of Wildlife Agencies (WAFWA) Draft Guidelines. The Nevada BLM guidelines apply the most current sage grouse science to BLM activities, within the context …

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Western Rangeland Noxious Weeds: Collecting, Sharing And Using Information, U.S. Department Of Interior, U.S. Department Of Agriculture, Riley Memorial Foundation Sep 2000

Western Rangeland Noxious Weeds: Collecting, Sharing And Using Information, U.S. Department Of Interior, U.S. Department Of Agriculture, Riley Memorial Foundation

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Western rangeland weeds such as yellow starthistle, leafy spurge, Canada thistle and Russian knapweed are causing tremendous losses to agricultural industries, including both crop and livestock production, and to environmental resources on private lands. Concurrently, many public lands managed by federal agencies are being steadily invaded. As a result, these lands held in the public trust are experiencing reductions in commodity yields, recreational opportunities, biodiversity and ecosystem function.

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Effect Of Daily Fluctuations From Flaming Gorge Dam On Ice Processes In The Green River, John W. Hayse, Steven F. Daly, Andrew Tuthill, Richard A. Valdez, Bryan Cowdell, Gary Burton May 2000

Effect Of Daily Fluctuations From Flaming Gorge Dam On Ice Processes In The Green River, John W. Hayse, Steven F. Daly, Andrew Tuthill, Richard A. Valdez, Bryan Cowdell, Gary Burton

All U.S. Government Documents (Utah Regional Depository)

This report provides results and conclusions of a detailed investigation of ice processes in the main channel of the reach of the Green River between the downstream end of Split Mountain (River Mile [RM1] 320) and the Ouray, Utah Bridge (R.M248). The objective of the study was to examine the influence of daily fluctuations in water releases from Flaming Gorge Damon river ice processes in this reach, which serves as an overwintering area for endangered Colorado pikeminnow and razorback sucker. The objective of the study was met through examination of historical records of winter water and air temperatures, flow measurements, …

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Selenium Poisoning Of Wildlife And Western Agriculture: Cause And Effect, N. E. Korte Feb 2000

Selenium Poisoning Of Wildlife And Western Agriculture: Cause And Effect, N. E. Korte

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This project examined the hypothesis that selenium contamination is not the principal cause of the decline of endemic fish species in the Upper Colorado Basin. Activities employed to test this hypothesis included a reconnaissance of locations altered by recent road construction, a reinterpretation of available literature regarding selenium toxicity, and the interpretation of unpublished data obtained from the Upper Colorado Basin Fish Recovery Program. The project demonstrates that most of the evidence implicating selenium is circumstantial. Specifically, this research demonstrates that neither the historical record nor the technical literature consistently supports the emphasis given selenium toxicity. For example, many locations …

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Assessing Interconnections Between Wilderness And Adjacent Lands: The Grand Staircase-Escalante National Monument, Utah, Janice L. Thomson, Dawn A. Hartley, Gregory H. Aplet, Peter A. Morton, Usda Forest Service Proceedings Jan 2000

Assessing Interconnections Between Wilderness And Adjacent Lands: The Grand Staircase-Escalante National Monument, Utah, Janice L. Thomson, Dawn A. Hartley, Gregory H. Aplet, Peter A. Morton, Usda Forest Service Proceedings

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Wilderness managers have traditionally managed wilderness lands based on the ecological and social content of wilderness areas. The authors propose a framework to systematically account for the biophysical, socioeconomic, and wildness characteristics of the broader landscape context. The method was applied to the proposed wilderness lands of the Grand Staircase-Escalante National Monument in southern Utah. The results illustrate patterns of interdependencies across the landscape. Spatial data demonstrate links between the integrity of proposed wilderness lands and the management of adjacent land units, and links between the economic health of local communities and the management of proposed wilderness and adjacent federal …

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Provisional Report, University Of Utah, United States Government Jan 2000

Provisional Report, University Of Utah, United States Government

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The purpose of Grant # DE-FG03 98ER62674, Project # 55800112 was to continue a previously funded effort and make a statistical comparison of the respective toxicities of 226Ra vs. 239Pu in dogs. Special emphasis was on the induction of bone tumors that result from the alpha-radiation emitted from either radionuclide. With the support provided, we have completed the statistical analysis of 226Ra and have established a sound basis for the analysis of the corresponding 239Pu data and for the comparison of these 2 nuclides. The analysis of the Ra project is the cornerstone for a determination of the Pu toxicity, …

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Decision Record And Finding Of No Significant Impact For The Pioneer Pipe Line Expansion Project, Sinclair, Wyoming, To Croydon, Utah, United States Bureau Of Land Management Jan 2000

Decision Record And Finding Of No Significant Impact For The Pioneer Pipe Line Expansion Project, Sinclair, Wyoming, To Croydon, Utah, United States Bureau Of Land Management

All U.S. Government Documents (Utah Regional Depository)

This Decision Record and Finding of No Significant Impact (FONSI) for the proposed Pioneer Pipe Line Expansion Project from Sinclair, Wyoming to Croydon, Utah, is furnished for your information. The decision on this project was based upon the analysis in the Environmental Assessment (EA), public concerns and comments, and other multiple-use resource objectives or programs that apply to the project.

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