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Articles 45901 - 45930 of 52500
Full-Text Articles in Physical Sciences and Mathematics
The Effect Of Industrial Development On The Sediment Contamination Of Apponaug Cove, A Historical Analysis, Marina Havan-Orumieh
The Effect Of Industrial Development On The Sediment Contamination Of Apponaug Cove, A Historical Analysis, Marina Havan-Orumieh
Marine Affairs Theses and Major Papers
Sediment cores have long been used to formulate the chronology of environmental contamination. This paper will investigate the utility of sediment cores in determining the chronology of trace metal contamination in Apponaug Cove, Rhode Island. A meter-long sediment core taken from the Cove was analyzed for chromium, copper, lead, zinc and nickel as well as organic pollutants coprostanol, polyaromatic hydrocarbons, benzotriazole and clorobenzotriazole. The core represents a close to 200 year record of sediments in Apponaug Cove. The cultural/economic changes in the Watershed in addition to environmental laws composed in the State and Federal levels which may have correlated with …
Busselton, Margaret River, Augusta: Land Capability Study, Peter J. Tille, Neil Clifton Lantzke
Busselton, Margaret River, Augusta: Land Capability Study, Peter J. Tille, Neil Clifton Lantzke
Land resources series
The study was done to ensure that information on the area's land resource, and its capability, is available for land use planning. This information will assist planners to make decisions which can allow for the optimal development of the land while avoiding land degradation or land use conflicts. A map showing the distribution of land units defined according to soil type, topography, drainage and wind exposure was prepared at a scale of 1:50,000. From this map a smaller scale, less detailed land systems map was drawn. Land capability, the ability of land to sustain a specific use without undesirable on-site …
Land Resources In The Northern Section Of The Peel-Harvey Catchment, Swan Coastal Plain, Western Australia Map, Dennis Van Gool
Land Resources In The Northern Section Of The Peel-Harvey Catchment, Swan Coastal Plain, Western Australia Map, Dennis Van Gool
Land resources series
Land Resources Map and Land Capability table for the northern section of the Peel-Harvey catchment. Prepared to assist nutrient management and land use planning in the southern section of the Peel-Harvey catchment.
Conservación En Paraguaná: ¿Misión Imposible?, Aldemaro Romero Jr.
Conservación En Paraguaná: ¿Misión Imposible?, Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Effects Of Ambient Lake Mohave Temperatures On Development, Oxygen Consumption, And Hatching Success Of The Razorback Sucker, Michael A. Bozek, Larry J. Paulson, Gene R. Wilde
Effects Of Ambient Lake Mohave Temperatures On Development, Oxygen Consumption, And Hatching Success Of The Razorback Sucker, Michael A. Bozek, Larry J. Paulson, Gene R. Wilde
Publications (WR)
Spawning of razorback suckers, Xyrauchen texanus, in Lake Mohave occurred from 10-22° C and larvae were collected at water temperatures from 10-15° C in 1982 and 1983. In the laboratory, hatching success was similar from 12-20° C, but reduced hatching success was found at 10° C while none hatched at 8°C. Development rate and oxygen consumption were positively related to incubation temperature. Direct effects of ambient Lake Mohave water temperatures on hatching success of razorback sucker embryos are considered minimal. Historical spawning temperatures for the species are hypothesized based upon successful incubation temperatures and comparison to the white sucker, …
Urban And Community Forestry: A Guide For The Interior Western United States, Craig W. Johnson, Fred A. Baker, Wayne S. Johnson, Richard Fisher, Susan Nordstrom, Gary O. Merrill, Stefan Zeglen
Urban And Community Forestry: A Guide For The Interior Western United States, Craig W. Johnson, Fred A. Baker, Wayne S. Johnson, Richard Fisher, Susan Nordstrom, Gary O. Merrill, Stefan Zeglen
Elusive Documents
No abstract provided.
Anasazi Basketmaker: Papers From The 1990 Wetherill-Grand Gulch Symposium, Victoria M. Atkins, Lisa Mcclanahan
Anasazi Basketmaker: Papers From The 1990 Wetherill-Grand Gulch Symposium, Victoria M. Atkins, Lisa Mcclanahan
Elusive Documents
No abstract provided.
Decision Record And Finding Of No Significant Impacts For Off-Road Vehicle Designations For Wilderness Study Area In The Grass Creek Resource Area, United States Department Of The Interior, Bureau Of Land Management
Decision Record And Finding Of No Significant Impacts For Off-Road Vehicle Designations For Wilderness Study Area In The Grass Creek Resource Area, United States Department Of The Interior, Bureau Of Land Management
Record of Decisions (WY)
The need for revised ORV designation decisions was confirmed through public scoping and a series of meetings of an ad hoc committee formed specifically to advise the GCRA on ORV designations. While the MFP objectives are still considered valid and appropriate, revising ORV designation decisions to meet these objectives requires an amendment to the MFP.
Environmental Assessment Seminoe-Kortes Transmission Line/Substation Consolidation Project, Carbon County, Wyoming, U.S. Department Of Energy
Environmental Assessment Seminoe-Kortes Transmission Line/Substation Consolidation Project, Carbon County, Wyoming, U.S. Department Of Energy
Environmental Assessments (WY)
The existing switchyards at Western Area Power Administration's (WESTERN) Seminoe and Kortes facilities, located approximately 40 miles northeast of Rawlins, Carbon County, Wyoming, were constructed in 1939 and 1951, respectively. The circuit breakers at these facilities are beyond or approaching their service life and need to be replaced. In addition, the switchyards have poor access for maintenance and replacement of equipment, and their locations create potential for oil spills into the North Platte River. WESTERN is proposing to consolidate the switchyard facilities into one new substation to provide easier access, restore proper levels of system reliability, and decrease the potential …
Cody Record Of Decision And Approved Resource Management Plan, United States Department Of The Interior, Bureau Of Land Management
Cody Record Of Decision And Approved Resource Management Plan, United States Department Of The Interior, Bureau Of Land Management
Record of Decisions (WY)
This document records the decision made by the Bureau of Land Management (BLM) for managing approximately 891,600 acres of public land surface and 1,508,200 acres of federal mineral estate administered by the Bureau of Land Management in the Cody Resource Area.
Great Divide Resource Area Record Of Decision And Approved Resource Management Plan, United States Department Of The Interior, Bureau Of Land Management
Great Divide Resource Area Record Of Decision And Approved Resource Management Plan, United States Department Of The Interior, Bureau Of Land Management
Record of Decisions (WY)
This document records the decision made by the Bureau of Land Management for managing approximately 4 million acres of public land surface and 5 million acres of federal mineral estate administered by the Bureau of Land Management (BLM) in the Great Divide Resource Area.
Effects Of Low Dissolved Oxygen On The Macrobenthos Of The Lower Rappahannock River, Chesapeake Bay, Roberto Javier Llanso
Effects Of Low Dissolved Oxygen On The Macrobenthos Of The Lower Rappahannock River, Chesapeake Bay, Roberto Javier Llanso
Dissertations, Theses, and Masters Projects
The lower Rappahannock River, a subestuary of the Chesapeake Bay, is affected by seasonal low dissolved oxygen events that are intermittent and vary in intensity. Overall, macrobenthic abundance and species number were low, decreasing towards the channel and upriver, where dissolved oxygen concentrations were lowest. Mortality of macrobenthos in early summer was attributed to hypoxia. Species abundances and number declined with the onset of hypoxia, and did not recover in the deep channel until the fall. Tolerance of macrobenthos to hypoxia appeared to be species-specific. Recruitment of hesionid polychaetes occurred in summer during normoxia, but mortality followed during hypoxia, suggesting …
Influence Of Nontimber Resources On Timber Sale Characteristics In The Intermountain West, U.S. Forest Service
Influence Of Nontimber Resources On Timber Sale Characteristics In The Intermountain West, U.S. Forest Service
All U.S. Government Documents (Utah Regional Depository)
This study focuses on the influence of nontimber considerations on establishing timber sale characteristics.
Mineral Resources Of The Marble Canyon Wilderness Study Area, White Pine County, Nevada, And Millard County, Utah, Michael F. Diggles, Gary A. Nowlan, H. Richard Blank, Jr., Susan M. Marcus, Richard F. Kness, U.S. Geological Survey, U.S. Bureau Of Mines
Mineral Resources Of The Marble Canyon Wilderness Study Area, White Pine County, Nevada, And Millard County, Utah, Michael F. Diggles, Gary A. Nowlan, H. Richard Blank, Jr., Susan M. Marcus, Richard F. Kness, U.S. Geological Survey, U.S. Bureau Of Mines
All U.S. Government Documents (Utah Regional Depository)
The 19,150-acre Marble Canyon Wilderness Study Area (NV-040-086) was evaluated for mineral resources (known) and mineral resource potential (undiscovered), and field work was conducted in 1987. The acreage includes 6,435 acres that is now designated as part of the Mount Moriah Wilderness under the Nevada Wilderness Protection Act of 1989 (S. 974), most but not all of which is included in 8,300 acres fro which the U.S. Bureau of Land Management requested a mineral survey. In this report, the "wilderness study area," or simply "the study area" refers to the entire 19,150-acre tract. The area in underlain by quartzite shale …
Management Of The Ozark Big-Eared Bat, Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, Sam W. Barkley
Management Of The Ozark Big-Eared Bat, Plecotus Townsendii Ingens, In Arkansas, Michael J. Harvey, Sam W. Barkley
Journal of the Arkansas Academy of Science
No abstract provided.
An Introduction To The Soils Of The Jerramungup Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Jerramungup Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
Bulletins 4000 -
With descriptions, illustrations and notes on eight common soils.
The Water Transfer Process As A Management Option For Meeting Changing Water Demands, Volume I, Robert S. Robinson, Lawrence J. Macdonnell, Charles W. Howe, Teresa A. Rice, Mark Squillace, Geological Survey (U.S.), University Of Colorado Boulder. Natural Resources Law Center
The Water Transfer Process As A Management Option For Meeting Changing Water Demands, Volume I, Robert S. Robinson, Lawrence J. Macdonnell, Charles W. Howe, Teresa A. Rice, Mark Squillace, Geological Survey (U.S.), University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
1 v. : ill. ; 28 cm
V. 1.: Introduction -- Summaries of state reports -- Findings and comparative analysis -- Summary and conclusions
From Basin To "Hydrocommons": Integrated Water Management Without Regional Governance, Gary D. Weatherford, University Of Colorado Boulder. Natural Resources Law Center
From Basin To "Hydrocommons": Integrated Water Management Without Regional Governance, Gary D. Weatherford, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
22 p. ; 28 cm
Water And The Cities Of The Southwest, John A. Folk-Williams, University Of Colorado Boulder. Natural Resources Law Center
Water And The Cities Of The Southwest, John A. Folk-Williams, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
13 p. ; 28 cm
Transfers Of Water Use In Colorado, Lawrence J. Macdonnell, Charles W. Howe, Teresa A. Rice, University Of Colorado Boulder. Natural Resources Law Center
Transfers Of Water Use In Colorado, Lawrence J. Macdonnell, Charles W. Howe, Teresa A. Rice, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
iv, 52 p. : ill., maps ; 28 cm
Water, The Community, And Markets In The West, Helen Ingram, Cy R. Oggins, University Of Colorado Boulder. Natural Resources Law Center
Water, The Community, And Markets In The West, Helen Ingram, Cy R. Oggins, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
12 p. ; 28 cm
Instrumentation For Multi-Electrode Voltammetry, I-Pin Ho
Instrumentation For Multi-Electrode Voltammetry, I-Pin Ho
Dissertations and Theses
When metal pollutants exist in natural water, their toxicity is dramatically dependent on the chemical species. Numerous sophisticated techniques and instruments have been developed to detect metal pollutants at very low concentration levels. However, one important factor is often ignored, i.e., rarely is species determination required. Electrochemical (EC) methods have the particular advantage of being, in principle, a species-sensitive method rather than an element-sensitive method for the study of metal speciation in natural waters.
The goal of this research was to develop an instrument using the EC technique for speciation and general voltammetric studies. It was accomplished by designing a …
Chemistry Of Pentafluorothio (Sf5) Alkyl Derivatives, Rolf Walter Winter
Chemistry Of Pentafluorothio (Sf5) Alkyl Derivatives, Rolf Walter Winter
Dissertations and Theses
Part I describes the preparation of a number of useful intermediates from the sultone F5SCHCF2OSO2 (1). These intermediates include the following: the ketene F5SC(SO2)=C=O (21), the unique sultone F4S=CCF2OSO2 (23), and various ionic intermediates of the form Y+ [F5SC(SO2F) COX]-. These intermediates play an important role in providing new pathways for preparing fluorosulfonic acid precursors. Fluorosulfonic acids are excellent candidates to improve the efficiency of environmentally safe fuel cells. It was possible to obtain new derivatives of 1 by …
Characterization Of Organic Sulfur Compounds In Coals And Coal Macerals, Stephen R. Palmer, Edwin J. Hippo, Michael A. Kruge, John C. Crelling
Characterization Of Organic Sulfur Compounds In Coals And Coal Macerals, Stephen R. Palmer, Edwin J. Hippo, Michael A. Kruge, John C. Crelling
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Peroxyacetic acid oxidation has been used to investigate the type and distribution of organic sulfur species in samples of vitrinite, sporinite and inertinite, separated from the Herrin No.6 and an Indiana No.5 coal seam. It was established that organic sulfur species were selectively preserved during oxidation and their analysis led to some of the first sulfur-33 NMR spectra obtained for coal. The effects of maceral separation processes on model compounds were also studied. Results from our studies support the following conclusions: 1). Different macerals have different distributions and types of organic sulfur species. 2). Organic sulfur compounds in coal occur …
1990 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie
1990 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie
Data Sets
The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the photo point locations, aerial photos, and flight maps for the year 1990.
1990 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group
1990 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group
Images
The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the aerial photos for the year 1990.
Waterlogging : One Reason Why Our Crops And Pastures Are Not Achieving Maximum Yields, Department Of Agriculture And Food, Western Australia
Waterlogging : One Reason Why Our Crops And Pastures Are Not Achieving Maximum Yields, Department Of Agriculture And Food, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Water, either its lack"or excess, is the main factor affecting the yield of crops and pastures in Western Australia.
Mapping The Extent Of Waterlogged Crop Using Satellite Imagery, Jeremy Wallace, Buddy Wheaton
Mapping The Extent Of Waterlogged Crop Using Satellite Imagery, Jeremy Wallace, Buddy Wheaton
Journal of the Department of Agriculture, Western Australia, Series 4
No abstract provided.
Waterlogging : How It Reduces Plant Growth And How Plants Can Overcome Its Effects, Tim Setter, Bob Belford
Waterlogging : How It Reduces Plant Growth And How Plants Can Overcome Its Effects, Tim Setter, Bob Belford
Journal of the Department of Agriculture, Western Australia, Series 4
Lack of oxygen is the major cause of limited plant growth in waterlogged soils. When soils become waterlogged less gas diffuses to and from the roots through the soil pores; there are changes in concentrations of mineral elements in soil solutions; and toxic products of roots and soil microorganisms begin to accumulate. These changes adversely affect germination, growth and development of plants.
Plant Growth And Survival In Saline, Waterlogged Soils, Ed Barrett-Lennard, Neil Davidson, Richard Galloway
Plant Growth And Survival In Saline, Waterlogged Soils, Ed Barrett-Lennard, Neil Davidson, Richard Galloway
Journal of the Department of Agriculture, Western Australia, Series 4
Waterlogged soils in Western Australia are often salt-affected. Recent research has shown that the interaction between waterlogging and salinity has a far greater adverse effect on plant groivth and survival than either of these two factors individually. The consequences of the combined effects of salt and waterlogging for most plant species are increased salt uptake, reduced growth, chlorosis (yellowing of leaves), defoliation, and death. Salt sensitive agricultural species (nonhalophytes) are more severely affected by this interaction than salt tolerant species (halophytes).