Digital Commons Network^™

Identification Of Critical Water Levels In Flooded Rice Fields, Carl L. Griffis

Arkansas Water Resources Center Technical Reports

A mathematical model was developed to simulate the transient hydrology of a flooded rice field. With the model, users can determine the critical interlevee areas in which to monitor the water levels so that the irrigation well can be turned on at the critical low water level, and turned off at the critical high water level, in order to maximize water application efficiency. Sensitivity analysis performed with the model showed that it will be necessary to calibrate the model for each specific field. A calibration procedure has been developed.

Finite Element Simulation Of Saturated-Unsaturated Subsurface Flow, George E. Blandford

KWRRI Research Reports

A two-dimensional transient model for flow through saturated-unsaturated porous media is developed, The model numerically solves the pressure head dependent or moisture content dependent form of Richard's equation. The model code uses isoparametric quadratic triangular and/or quadrilateral finite elements for the geometric representation and for the weak Galerkin spacial integrations. An implicit, unconditionally stable single-step numerical time integration scheme with an oscilliatory noise reduction option is utilized for the temporal discretization. The highly efficient symmetric skyline (profile) solution scheme is used to solve the resulting simultaneous equations. The nonlinear subsurface flow parameters are approximated using cubic spline interpolation. The element …

Discharge And Travel Time Determinations In The Royal Spring Groundwater Basin, Kentucky, John Thrailkill, Douglas R. Gouzie

KWRRI Research Reports

Groundwater flow in many karst regions, including the Inner Bluegrass Karst Region of central Kentucky in which the study area was located, is unlike groundwater flow in granular aquifers. At least the major flows are turbulent and often with a free surface in large conduits, and applying concepts based on Darcy's Law to describe and model these flows is inappropriate. Parameters such as linear velocity, channel geometry, and conveyance used to describe surface streamflows are more applicable, and the primary objective of the project was to estimate these in a groundwater basin using the travel time of dye slugs and …

The Probe, Issue 45 - August 1984

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association No. 45 August, 1984
HR 1797, the Anti-trapping Bill
Bureau of Land Management
ASIW Publication SIP 817
Computer Rats
New device on the market that warns "most types of animals" of an approaching vehicle.
Office of Management and Budget
Letters to Ye Ed
ADC
New Member
Utah prairie dog
Red, Eastern and Western Gray Kangaroos
Rabies
Skunks

Toxicological Studies On Aquatic Contaminants Originating From Coal Production And Utilization: The Induction Of Tolerance To Silver In Laboratory Populations Of Fish And The Chronic Toxicity Of Nickel To Fish Early Life Stages, Wesley J. Birge, Jeffrey A. Black, James F. Hobson, Albert G. Westerman

KWRRI Research Reports

Aquatic toxicity studies were performed on two important coal-derived contaminants, silver and nickel. Silver was investigated with regard to metal-induced tolerance in laboratory populations of the fathead minnow (Pimephales promelas). Fish were exposed to acute silver concentrations following acclimation to sublethal exposures of this metal. Based on median lethal times (LT50), animals which had received 14 days prior exposure to 1.5 and 15 μg Ag/L were three to four times more resistant to silver than were previously unexposed organisms. This metal-induced resistance was not a sustained response. After organisms which had been acclimated to 15 μg/L had been transferred to …

Impact Assessment Of Coal Slurry Pipelines On Water Resources Utilization And Allocation, Muhammad Najmus Saquib, M. Levent Kavvas, David T. Kao, Lindell E. Ormsbee

KWRRI Research Reports

Pike county, the largest coal producing and exporting county from the state of Kentucky was studied to assess the impact of a possible coal slurry pipeline project on the water resources allocation and utilization in the region. Potential coal slurry pipelines from the region were identified and water requirement for operating several hypothetical pipelines were computed by using a recently developed computer program. Climatological data for the county were collected and analyzed for a 29-year period of record with a view to determining the monthly net consumptive use in the region. Available groundwater data for the region was also collected …

An Evaluation Of Naturally Occurring Populations Of Magnolia Tripetala L. In Indiana, Kemuel S. Badger

All-Inclusive List of Electronic Theses and Dissertations

Magnolia tripetala L. occurs in Indiana as a disjunct from the Appalachian mountains populations. Currently, the known distribution of ~· tripetala in Indiana is confined to seven sites in Crawford County. The current status of ~· tripetala and the surrounding plant community was evaluated to aid in the future study, protection and management of this species, which is endangered in Indiana. Systematic random sampling of the tree stratum was done with belt transects. The sapling and seeding strata were sampled with subplots, placed along the belt transects. Permanent plots were established to enable future monitoring of what is currently prime …

A Study Of Alternative Sites For Equestrian/Hobby Farm Development In The Karratha Area, Bernard Kok

Resource management technical reports

This report has been prepared in response to a request from the Shire of Roebourne to assess the land use capabilities for equestrian/hobby farm development in the Karratha area.The report comprises five parts; a brief review of the areas climate,discussion of the geological soil units and vegetation, water supply, alternative areas of development and recommendations.

Identification Of Soil-Water Chemical Parameters For The Prediction And Treatment Of Suspended Solids In Surface Water Reservoirs Of Coal Mine Lands, V. P. Evangelou, J. H. Grove, R. I. Barnhisel

KWRRI Research Reports

High concentrations of suspended solids in coal mine sedimentation ponds are a factor in lowering water quality. This study focuses on the influence dissolved solids have on concentration and settling of suspended solids. Water samples from sedimentation ponds in Eastern and Western Kentucky were used to evaluate water composition in such ponds. Spoil samples from surface mine sites in both parts of the state were used to evaluate water composition released from the spoils upon introducing water.

The results demonstrate that water quality emanating from coal spoils of Eastern and Western coal mines is dependent on the type of spoil …

Water Current, Volume 16, No. 4, July/August 1984

Water Current Newsletter

Director's Report
Summary of UCOWR Annual Meeting
Symposium on Multiobjective Optimization
Groundwater Research Possibilties Explored
Nebraska Water Conference Council Fall Meeting
Research Review: Tillage Practice Effects on Water Conservation and the Efficiency and Management of Surface Irrigation Systems
NARD Annual Meeting

Research Note: Pcbs In The Acushnet River Estuary, Jacek Sulanowski

Bridgewater Review

Much media attention has recently been devoted to potentially toxic substances disseminated throughout various components of the environment. In almost every case these substances had been manufactured and distributed under the assumption that they did not pose a threat to man. Indeed when tested by methods current at the time of their initial introduction the substances were considered benign. It was only later when technologically advanced and more sensitive methods of analyses were developed that the presence of these substances was considered to be of real concern. Unfortunately, in the interval between introduction and detection, the accumulation of these substances …

Wetlands Preservation And The Protection Of Endangered Species As Limits On Western Water Development, A. Dan Tarlock

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

25 pages.

[Section] 404 Panel Discussion, Gregory J. Hobbs, Jr.

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

5 pages.

Supplemental materials. Includes proposed bill language for Department of the Interior appropriations bill. Outline of key events and dates in the history of water law.

Panel: Section 404 Of The Clean Water Act And Section 7 Of The Endangered Species Act: Potential Impacts On Water Supplies [Supplemental Materials], Wendy C. Weiss

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

57 pages.

Supplemental materials. Includes text of Riverside Irrigation District v. Andrews, 568 F.Supp 563 and Opening Brief of Plaintiff-Intervenor-Appellants in Riverside Irrigation District v. Andrews, Cases No. 83-2114, 83-2115, 83-2119, 83-2230, April 3, 1984.

Groundwater Control Programs Affecting Water Development, Arthur L. Littleworth

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

19 pages.

Ferc, Purpa And The Federal Power Act, Lawrence J. Wolfe

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

62 pages.

Contains references.

The Case For A Legislative Solution To Indian Water Claims, James M. Bush

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

57 pages.

Reserved Water Rights Of Indian Allotments, Richard B. Collins

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

10 pages.

Contains references.

Instream Flows As Reserved Rights On Federal Reservations After United States V. New Mexico, Hank Meshorer

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

10 pages.

Effects Of The Clean Water Act On Water Availability And Development, Paula C. Phillips

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

12 pages.

Introduction To Reserved Water Rights, Ralph W. Johnson

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

16 pages.

Indian Water Rights In The Supreme Court: A Review And Preview, Louis F. Claiborne

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

12 pages.

Agenda: The Federal Impact On State Water Rights, University Of Colorado Boulder. Natural Resources Law Center

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

Conference organizers and/or speakers included University of Colorado School of Law professors James N. Corbridge, Jr., David H. Getches, Lawrence J. MacDonnell and Richard B. Collins.

In general, water rights are a matter of state law. However, the availability and development of water are affected by important federal rights, policies and programs. In this conference, an outstanding group of private practitioners, government representatives and academics consider this important topic.

Developments In Federal Water Policies And Programs, Harold W. Furman Ii

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

14 pages.

Role Of The State Courts In Adjudicating Indian Water Rights, Jon L. Kyl

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

39 pages.

Negotiation As A Means Of Quantifying Indian Water Rights, Joseph R. Membrino

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

88 pages.

Contains attachments.

Withdrawals Of Public Lands Under The Federal Land Policy And Management Act, David H. Getches

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

17 pages.

Directions For The Future, Clyde O. Martz

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

11 pages.

Includes the Public Land Law Review Commission's 1970 report, A Program for the Future (7 pages).

Private Use Of The Public Lands – What Is The Appropriate “Fair Market Value”?, Richard L. Stroup

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

44 pages.

Contains a 4-page outline; one page of references (page 6); and 37 pages of appendices arranged in 11 topical areas.

Access To And Across Public Lands, Rebecca Love Kourlis

The Federal Land Policy and Management Act (Summer Conference, June 6-8)

16 pages.

Contains list of references (page 1 of text).