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Ecological Studies Related to Construction of the Defense Waste Processing Facility on the Savannah River Site

Description: The Savannah River Ecology Laboratory has completed 10 years of ecological studies related to the construction of the Defense Waste Processing Facility (DWPF) on the Savannah River Site. This progress report examines water quality studies on streams peripheral to the DWPF construction site and examines the effectiveness of refuge ponds'' in ameliorating the effects of construction on local amphibians. Individual papers on these topics are indexed separately. 93 refs., 15 figs., 15 tabs. (MHB)
Date: December 1, 1988
Creator: Scott, David E.; Pechmann, Joesph H. K.; Knox, John N.; Estes, Ruth A.; McGregor, JoAnne H. & Bailey, K. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Arctic hydrology and meteorology

Description: The behavior of arctic ecosystems is directly related to the ongoing physical processes of heat and mass transfer. Furthermore, this system undergoes very large fluctuations in the surface energy balance. The buffering effect of both snow and the surface organic soils can be seen by looking at the surface and 40 cm soil temperatures. The active layer, that surface zone above the permafrost table, is either continually freezing or thawing. A large percentage of energy into and out of a watershed… more
Date: January 1, 1988
Creator: Kane, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternate site selection process for UMTRA (Uranium Mill Tailings Remedial Action) project sites

Description: The purpose of this document is to describe the guidelines and processes to be used by the Department of Energy (DOE) with input from the affected states and tribes to select alternate disposal sites in compliance with each established cooperative agreement. This document supersedes two previous DOE documents, Criteria for Evaluating Disposal Sites (DOE, 1982) and Alternate Site Selection Process (ASSP) for UMTRA Project Sites (DOE, 1986). This revision of the ASSP was prepared in response to t… more
Date: June 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemistry of organic carbon in soil with relationship to the global carbon cycle

Description: Various ecosystem disturbances alter the balances between production of organic matter and its decomposition and therefore change the amount of carbon in soil. The most severe perturbation is conversion of natural vegetation to cultivated crops. Conversion of natural vegetation to cultivated crops results in a lowered input of slowly decomposing material which causes a reduction in overall carbon levels. Disruption of soil matrix structure by cultivation leads to lowered physical protection of … more
Date: January 1, 1988
Creator: Post, W.M. III
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Arctic hydrology and meteorology. Annual report

Description: The behavior of arctic ecosystems is directly related to the ongoing physical processes of heat and mass transfer. Furthermore, this system undergoes very large fluctuations in the surface energy balance. The buffering effect of both snow and the surface organic soils can be seen by looking at the surface and 40 cm soil temperatures. The active layer, that surface zone above the permafrost table, is either continually freezing or thawing. A large percentage of energy into and out of a watershed… more
Date: December 31, 1988
Creator: Kane, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy flow in an arctic aquatic ecosystem

Description: Natural isotope abundances to trace major pathways of energy flow to consumers in Imnavait Creek and the tundra ecosystem of the R4D watershed with comparative work in the coastal tundra. Our overall goals are to a determine if carbon is accumulating in upland and coastal tundra; determine the role of eroded peat carbon in the aquatic ecosystem; and to determine the distribution of carbon and nitrogen isotopes in the tundra-pond ecosystem to establish the feasibility of using natural difference… more
Date: December 31, 1988
Creator: Schell, D. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mitigation alternatives for L Lake. Revision 1

Description: L-Lake was built in 1985 to receive and cool the thermal effluents from the L-Reactor. The lake was constructed by impounding approximately 7 km of the upper portions of Steel Creek to form a 1000-acre reservoir. Dam construction and reservoir filling were completed in October 1985 and L-Reactor resumed operations at the end of the same month. Since 1985, this system has been developing a biological community comprised of representatives of all trophic levels. The system is impacted by both tem… more
Date: November 3, 1988
Creator: Moore, D. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Habitat Evaluation and Management Plan for a Riparian Ecosystem

Description: Ecological research involving habitat studies was conducted on the Elm Fork of the Trinity River in Denton County, Texas, from spring 1985 to spring 1986. Habitat Evaluation Procedures and Habitat Suitability Index Models developed by the United States Fish and Wildlife Service were applied to a 1419 hectares study area to determine the quality of habitat for four species: beaver, Castor canadensis, wood duck, Aix sponsa, pileated woodpecker, Dryocopus pileatus, and white crappie, Poxomis annul… more
Date: May 1988
Creator: Wilkinson, Robert N.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Energy flow in an arctic aquatic ecosystem

Description: Natural isotope abundances to trace major pathways of energy flow to consumers in Imnavait Creek and the tundra ecosystem of the R4D watershed with comparative work in the coastal tundra. Our overall goals are to a determine if carbon is accumulating in upland and coastal tundra; determine the role of eroded peat carbon in the aquatic ecosystem; and to determine the distribution of carbon and nitrogen isotopes in the tundra-pond ecosystem to establish the feasibility of using natural difference… more
Date: January 1, 1988
Creator: Schell, D.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pacific Northwest Laboratory annual report for 1987 to the DOE office of energy research: Part 2, Environmental sciences

Description: This report summarizes progress in environmental sciences research conducted by Pacific Northwest Laboratory (PNL) for the Office of Health and Environmental Research in FY 1987. Research is directed toward developing a fundamental understanding of processes controlling the long-term fate and biological effects of fugitive chemicals and other stressors resulting from energy development. The research, focused on terrestrial, subsurface, and coastal marine systems, forms the basis for defining an… more
Date: July 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of the corrosion of carbon steels in simulated salt repository brines and acid chloride solutions at high temperatures

Description: An analysis of literature data on the corrosion of carbon steels in anoxic brines and acid chloride solutions was performed, and the results were used to assess the expected life of high-level nuclear waste package containers in a salt repository environment. The corrosion rate of carbon steels in moderately acidic aqueous chloride environments obeys an Arrhenius dependence on temperature and a (pH{sub 2}){sup {minus}1/2} dependence on hydrogen partial pressure. The cathodic reduction of water … more
Date: April 1, 1988
Creator: Diercks, D. R. & Kassner, T. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The development of a generic model for assessing the effects of elevated CO{sub 2} on ecosystems. Progress report, September 1, 1987--May 31, 1988

Description: Nitrogen concentrations in leaves vary in response to resource availability, generally increasing with increasing light or soil nitrogen and decreasing when plants are grown at higher than ambient carbon dioxide concentrations. This decrease in leaf nitrogen which commonly occurs at elevated levels of carbon dioxide Is intriguing and important for a number of reasons. Since leaf nitrogen and photosynthetic capacity are correlated, plants grown at high levels of carbon dioxide often do not displ… more
Date: December 31, 1988
Creator: Reynolds, J. F.; Dougherty, R. L.; Harley, P. C.; Hilbert, D. W. & Skiles, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental Regulatory Compliance Plan for site: Draft characterization of the Yucca Mountain site:Draft

Description: The objective of the EMMP is to document compliance with the NWPA. To do so, a summary description of site characterization activites is provided, based on the consultation draft of the SCP. Subsequent chpaters identify those technical areas having the potential to be impacted by site characterization activities and the monitoring plans proposed to identify whether those impacts acutally occur. Should monitoring confirm the potential for significant adverse impact, mitigative measures will be d… more
Date: January 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental program overview for a high-level radioactive waste repository at Yucca Mountain

Description: The United States plans to begin operating the first repository for the permanent disposal of high-level nuclear waste early in the next century. In February 1983, the US Department of Energy (DOE) identified Yucca Mountain, in Nevada, as one of nine potentially acceptable sites for a repository. To determine its suitability, the DOE evaluated the Yucca Mountain site, along with eight other potentially acceptable sites, in accordance with the DOE`s General Guidelines for the Recommendation of S… more
Date: December 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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