Physical Sciences and Mathematics Commons^™

Installing Photographic Rangeland Monitoring Sites In Grassland Environments, Andrew Mclaughlin

Agriculture reports

Photographic monitoring offers pastoralists an inexpensive management tool that can help to better understand how varying management practices affect the rangeland. Using a monitoring system also helps take the guesswork out of knowing what changes to vegetation and soils have occurred over time.

Chlorination Products Of Glycylphenylalanine In Model Solutions And A Wastewater, Daniel J. Keefe

Chemistry & Biochemistry Theses & Dissertations

Model solutions of the dipeptide glycylphenylalanine were chlorinated to five different chlorine-to-amino nitrogen (Cl/N) mole ratios and analyzed after 30 min by high performance liquid chromatography. At mole ratios of ≤ 1, N-chloroglycylphenylalanine (I) appeared to be the only major product. At a mole ratio ≤ 2, N, N-dichloroglycylphenylalanine (II) was the only product. Compound II decomposes in model solutions (t_1/2= 6.4 hr) at pH 7.0 to form a compound tentatively identified as an H-chloroaldimine (III). Compound III in turn decomposes (t_1/2= 36 hr) in model solutions at pH 7. o to (IV) . From ^{13 …}

Focus On Phosphorus: Arkansas Water Resources Center Research Conference, Kenneth F. Steele

Arkansas Water Resources Center Technical Reports

No abstract provided.

Lake Whatcom Monitoring Project 1991/1992 Report, Robin A. Matthews, Geoffrey B. Matthews

Lake Whatcom Annual Reports

This report is part of an on-going series of annual reports and special project reports that document the Lake Whatcom monitoring program.

This work is conducted by the Institute for Watershed Studies and other departments at Western Washington University. The major objective of this program is to provide long-term baseline water quality monitoring in Lake Whatcom and selected tributaries. Each section contains brief explanations about the water quality data, along with discussions of patterns observed in Lake Whatcom.

The Virginia Wetlands Report No. 93-4, Virginia Institute Of Marine Science

Virginia Wetlands Reports

• Little Blue Heron. Julie G. Bradshaw
• Cobia. Lyle Varnell
• Mapping our Coastal Inventory. Marcia Berman
• Wetlands Delineation- The Dilemma Continues Seashore State Park. Pam Mason
• Ecotourism and the Chesapeake Bay. Thomas Barnard
• What is Riprap? Walter I. Priest, III

Interim Report On Data And Methods For Assessment Of 2,3,7,8-Tetrachlorodibenzo-P-Dioxin Risks To Aquatic Life And Associated Wildlife, Steven P. Bradbury, Philip M. Cook, Russell J. Erickson, Robert L. Spehar, Gerald T. Ankney

Steven P. Bradbury

In April, 1991 the Administrator of the U.S. Environmental Protection Agency (EPA) announced that the Agency would conduct a scientific reassessment of the risk of 2,3,7,8-tetrachlorodibenzo-p-dioxin (hereafter referred to as TCDD), and similar chemicals, to human health and the environment. Since 1985, EPA has classified TCDD, which it considers the most potent known animal carcinogen, as a probable human carcinogen. Sources of TCDD in the environment were subsequently regulated on the basis of animal cancer rates extrapolated to doses associated with human exposures. Recently, consensus has developed that the toxic effects of TCDD appear to be mediated by its binding …

The Prairie Naturalist Volume 25. No. 1. March 1993

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

CONTENTS

FACTORS AFFECTING BIRD COLONIZATION OF RESTORED WETLANDS ▪ L. M. Hemesath and J. J. Dinsmore

RESPONSE OF DABBLING DUCKS TO EARLY-SPRING PARTIAL DRAWDOWN ON LAKE ERIE MARSHES ▪ T. Z. Riley and T. A. Bookhout

OVER-WATER NESTING BY DUCKS IN NORTHEASTERN SOUTH DAKOTA ▪ . K. L. Solberg and K. F. Higgins

ADDITIONAL MOUNTAIN PLOVER SIGHTINGS IN MONTANA ▪ D. M. Prellwitz

SMALL MAMMALS OF WOODED HABITATS OF THE KONZA PRAIRIE RESEARCH NATURAL AREA, KANSAS ▪ D. W. Kaufman, G. A. Kaufman, and E. …

The Probe, Issue 130 - March 1993

The Probe: Newsletter of the National Animal Damage Control Association

CONTENTS:
PRED-X®Ear-Tags Prove Disappointing to Producers
CALENDAR OF UPCOMING EVENTS
Grackles Draw Ire and Often Fire of Texas Mayor
Dominican Parrots Prove to be Problems—Ideas Needed
Deer Collision Insurance? Good Idea Falls Flat
Selective Raccoon Set Avoids Cats
Message from the President
Publications Available
Teaching Materials for Wildlife Damage Management
In My Opinion
NADCA Annual Meeting

The Progression Of "No Discharge Zone" Status In Water Bodies Across The Continental United States, Melissa Chaun

Reports

No abstract provided.

Center For Sustainable Agricultural Systems Newsletter, March/April 1993

Center for Sustainable Agricultural Systems: Newsletters (1993-2000)

Contents:

New Look for the Newsletter

Policy Options for 1995 Farm Bill

New CSAS Paper Series

Proceedings of "Farm Bill" Seminar Series

Sustainable Agriculture Initiative National Status Report (USDA)

Leopold Center Progress Report

NSAS and OCIA Annual Meetings

Nutrient Management for Water Quality, The Iowa Experience

New Book Series: Our Sustainable Future

List of Funding Sources Available

Cosponsorship of Seminar Speakers

CSAS Advisory Committee Meeting

Gell-Mann Presents Visions of Sustainable World

Next Generation of U.S. Ag. Conservation Policy

Seagrass And Caulerpa Monitoring In Hillsborough Bay Fourth Annual Report, City Of Tampa Department Of Sanitary Sewers

Reports

This is the fourth annual report to FDER to satisfy the requirements set forth in specific condition #14 of FDER construction permit DO29-1845321B.

The City of Tampa, Bay Study Group (BSG), has monitored the effects of sewage pollution abatement in Hillsborough Bay since 1976. Within the last decade, water quality improvements and evidence of minor seagrass revegetation in Hillsborough Bay prompted the BSG to initiate a seagrass study to compliment other programs assessing the environmental status of Hillsborough Bay.

Development Of "No Discharge" Zones In Virginia Tidal Waters Phase I, Center For Coastal Resources Management, Virginia Institute Of Marine Science

Reports

he Commonwealth of Virginia currently has no regulations in effect to restrict the discharge of waste from vessels in state waters. This poses concern as Virginia continues its efforts to improve water quality in the Chesapeake Bay. The degradation of critical environmental habitat is accelerated by the introduction of waste, which in turn threatens the ecological, aesthetic, and commercial values of Virginia's waters. The purpose of this project is two-fold. First a comprehensive review of regulatory statutes in states enforcing "no discharge" zones (NDZ) was conducted. This product is delivered as a separate document. Second, a large-scale inventory of environmentally …

An Assessment Of Aquatic Wildlife Utilization Between Created And Natural Tidal Salt Marshes, Kirk J. Havens, Lyle M. Varnell, Virginia Instiute Of Marine Science, Wetlands Program

Reports

No abstract provided.

Status Of The Major Oyster Diseases In Virginia 1992 A Summary Of The Annual Monitoring Program, Eugene M. Burreson

Reports

No abstract provided.

Strength Of Bentonite Water-Well Annulus Seals In Confined Aquifers, Fred Ogden

Fred L. Ogden

The advantages of bentonite clay for sealing applications are well known. Bentonites have extremely low permeability, do not affect formation water chemistry, and have the ability to swell and deform in response to subsurface changes. The major limitation on the applicability of bentonite for water well annulus sealing is strength. Strength tests conducted in a physical model of a water well identified the expected magnitude of shear strength for several commercially available bentonite well-sealing products. The dependence of bentonite strength in the annulus of a water well on both setting time and borehole geometry is discussed. Force balance calculations for …

Applications Of Gaming Techniques To Coastal Zone Problems, Robert Adam Drews

Marine Affairs Theses and Major Papers

The boundary between sea and land is an area which presents enormous management challenges. It is an area of fragile ecology, dense and growing population, multiple competing demands for resource use, a multitude of regulatory agencies, and far from complete scientific understanding. Given these difficulties, planning for coastal zone management frequently suffers from incomplete data, lack of consensus among users, and lack of support from government authorities. This paper proposes gaming as a tool for assisting in the information gathering, education, consensus building, and communications elements of planning. This is achieved by developing a planning game which is designed to …

The Origin And Evolution Of The Southern Snake Range Decollement, East Central Nevada, Allen J. Mcgrew

Geology Faculty Publications

Regional and local stratigraphic, metamorphic, and structural constraints permit reconstruction of the southern Snake Range extensional deformational system in east central Nevada. The dominant structure of the range, the southern Snake Range décollement (SSRD), operated during Oligocene and Miocene extensional deformation to exhume a footwall of multiply deformed metasedimentary and plutonic rocks. Intrusion of three plutons (∼160 Ma, 79.1 ± 0.5 Ma, and 36 ± 1 Ma, respectively) and development of two cleavages preceded the onset of extensional deformation. Plastic deformation of lower plate metasedimentary rocks accompanied the early phases of regional extension and produced bedding-parallel grain shape foliations and …

Water Resources Review - February 1993 Vol 6 No 1, Annis Water Resources Institute

AWRI Reviews

No abstract provided.

State Of Tampa Bay 1991-92, Tampa Bay Regional Planning Council (Tbrpc), Agency On Bay Management

Reports

Each year the Tampa Bay Regional Planning Council's Agency on Bay Management develops a report on the condition of the Tampa Bay estuary to identify activities and actions that have taken place during the previous year. This is the sixth "State of Tampa Bay" prepared under adopted rules of the Agency. Since the Legislature now meets earlier in the calender year, this report contains activities in 1991 and 1992 to accommodate this timing change.The purpose of the "State of Tampa Bay" is to • serve as a reference for projects, programs and organizations that affect the bay and its watershed …

Geological Field Guide To The Cedar Point Biological Station, Keith County, Nebraska, Robert F. Diffendal Jr., Roger K. Pabian

School of Natural Resources: Faculty Publications

This field guide was produced by staff members of the Conservation and Survey Division of the University of Nebraska originally in 1979 at the request of Dr. Brent Nickol, former Director of the Cedar Point Biological Station. It is an introduction to the geologic history and paleoecology of the Cedar Point area intended for students, staff, and other persons using the camp. This revision has been made some 15 years after the first version to reflect changes in ideas resulting from new data collected during that time.

Users of this guide should take care when studying the rock exposures described …

Problem Analysis For The Vegetation Diversity Project, David A. Pyke, Michael M. Borman, U.S. Department Of The Interior, Bureau Of Land Management

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

Management of the majority of public rangeland in the Great Basin and Columbia-Snake River Plateau falls under the authority of the Bureau of Land Management. The flora of this land ranges from highly diverse native plant communities to deteriorated lands dominated by exotic annuals. Approximately nine percent of the BLM’s 78 million acres of public land in this region is degraded to such a degree that changes in land management alone will not result in significant improvement. The BLM intends to restore native plant communities on these deteriorated lands, but current revegetation techniques used to establish introduced perennial grasses are …

Remedial Action Plan For The Codisposal And Stabilization Of The Monument Valley And Mexican Hat Uranium Mill Tailings At Mexican Hat, Utah, Uranium Mill Tailings Remedial Action Project Office, Albuquerque Operations Office, Department Of Energy

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

The Mexican Hat tailings site is in the San Juan County, Utah, two road miles southwest of the town of Mexican Hat on the Navajo Reservation. The Navajo community of Halchita is approximately 0.5 mile southwest of the site. The mill at the Mexican Hat site was operated from 1957 to 1965 by Texas-Zinc Minerals Corporation and the Atlas Corporation. Originally, two irregularly shaped tailings piles were located in the northeastern portion of the site. They occupied approximately 69 acres of the 235-acre designated site and contained approximately 2,575,000 cubic yards (cy) of tailings. The total amount of materials, including …

A Proposed Comprehensive Conservation And Management Plan For The Ungranted State Lands In Accomack And Northampton Countie, N. Bartlett Theberge, Pamela J. Nestell, Susan W. Carter

Reports

The goal of this management plan is to conserve and manage the fragile and dynamic coastal habitat and resources subject to this plan while accommodating compatible public uses.

To date 28,507 acres of ungranted state lands have been identified in Accomack and Northampton Counties. The purpose of this plan 1s to develop a comprehensive conservation and management strategy for these state owned beaches marshes, meadowlands, commons, and other coastal lands which constitute a fragile and dynamic natural coastal resource of the Commonwealth of Virginia.

Conservation For Production : Kings Rocks Catchment Report, William Oldfield

Agriculture reports

The aim of this report is to bring together current information on the land and ideas which will provide landholders of the King Rocks catchment group with a basis to make more informed decisions about managing the land. The report contains information on how the landscape was formed, how areas become degraded, what are the present recommended ways of fixing land degradation and what are the most productive means of farming the land.

Application Of Organophilic Clay, Koshy Koshy

Theses

The overall goal of this project is to asses the feasibility of using clay to filter water contaminated with organic contaminants. The clays that were used were provided by the Union Carbide Corporation and the Industrial Mineral Ventures (IMV), a division of Floridin company. The organic contaminants that this project concentrated on were, naphthalene, 1,4-dioxane, and phenol. The feasibility studies were done by batch isotherm studies. The protocol for the batch studies were the same as the ones used previously for granular activated carbon. This project looked at a total of six Union Carbide clays and five IMV Floridin clays. …

A Thermal Desorption Modulator For Continuous Monitoring Of Volatile Organic Compounds, Yun Chen

Theses

A thermal desorption modulator is made from a short segment of thin tubing containing an adsorbent or a chromatographic stationary phase. A carrier gas containing the analyte is introduced into the analytical column through the modulator which acts as a sample trap. Rapid electrical heating of the modulator releases a "concentration pulse" of the analyte and this serves as an injection similar to that from an injection valve. The modulator also acts as a sample preconcentrator and can be used to make repetitive injections every few seconds. In this research, the mechanism of thermal desorption modulator was studied and was …

Atrazine In A Stream-Aquifer System: Transport Of Atrazine And Its Environmental Impact Near Ashland, Nebraska, Darryl A. Blum, James D. Carr, Ralph K. Davis, Darryll T. Pederson

Nebraska Water Center: Faculty Publications

The municipal wellfield for Lincoln, Nebraska, consists of 44 wells located adjacent to the Platte River near Ashland, Nebraska. The herbicide atrazine was monitored in the river and two transects of monitoring wells. The amount of atrazine transported down the Platte River in 1989, 1990, and 1991 was shown to increase each year. Induced recharge from the Platte River results in movement of atrazine from the river into the aquifer. A 21-day lag time was determined for the movement of atrazine from the river to a transect of monitoring wells 10 feet west of the bank. The role that colloids …

Sheep And Wool Industries Need To Improve Their Performance, Rob Kelly, Tim Marshall

Journal of the Department of Agriculture, Western Australia, Series 4

Today in Western Australia, sheep are run at slightly higher stocking rates, are achieving greater lambing percentages (up JO per cent) and higher wool cuts per animal ( up 0. 6 kg greasy) than in the 1960s. When all components of production are considered, the productivity of sheep fanns has increased by 2. 7 per cent per year over the past 35 years.

The challenge of the next decade is to achieve substantially greater rates of improvement than for past years if the sheep and wool industries are to maintain their significant place in Western Australian agriculture.

Land Use Patterns In Relation To Lake Water Quality In The Salmon Lake Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby College

Colby College Watershed Study: Salmon Lake and McGrath Pond (2009, 1993)

Salmon Lake has a history of algal blooms which have decreased the recreational and aesthetic value of the lake (Nichols et al. 1984). As early as the 1920’s, Salmon Lake was reported to have poor water quality. Algal blooms were reported throughout the 1970’s. Numerous complaints led to a study in 1975 by the Maine Department of Environmental Protection (MDEP) and another in 1984 by the U.S. Geological Survey to determine the cause of the accelerated algal growth in the ponds. Both studies concluded that the primary cause of these algal blooms was high concentrations of phosphorus in the water. …

Desechos Sólidos, Aldemaro Romero Jr., Ana Mayayo

Publications and Research

No abstract provided.