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Articles 19051 - 19080 of 19879

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Sandplain Hardpan : A Different Dam Construction Material, A F. Mccrea Jan 1985

Sandplain Hardpan : A Different Dam Construction Material, A F. Mccrea

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

Before 1980, the Department of Agriculture did not believe that suitable farm dam materials could be found in light land soils. However Beacon earthmoving contractor, V> J> Pavlinovich, has demonstrated that where suitable cemented subsoils or 'hardpan' existed, a succcessful dam site could be found.

This material should not be confused with compaction or traffic hardpans ehich are dense layers of soil found near the surface. Traffic hardpans result from compaction of soil materials with the passage of vehicles and farm machinery. Rather, the hardpan referred to here is a natural subsoil layer that has been cemented by silica and …


Acidification Sources In Red Alder And Douglas-Fir Soils -- Importance Of Nitrification, H. Van Miegroet, D. W. Cole Jan 1985

Acidification Sources In Red Alder And Douglas-Fir Soils -- Importance Of Nitrification, H. Van Miegroet, D. W. Cole

Watershed Sciences Faculty Publications

Precipitation, throughfall, forest floor, and soil leachate samples were monitored continuously in 1981 and 1982 in a N-poor Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] forest and a red alder (Alnus rubra Bong.) forest growing adjacently on a glacial soil in western Washington. The purpose of the study was to quantify the relative importance of atmospheric vs. natural sources of H+ input to forest soil acidification, and to determine the role of N transformation processes in the overall H+ balance of soils with different N status. Rainwater samples had an avg pH of 4.7 and annual H+ deposition via precipitation averaged 320 …


Delineation Of Landslide, Flash Flood, And Debris Flow Hazards In Utah, David S. Bowles Jan 1985

Delineation Of Landslide, Flash Flood, And Debris Flow Hazards In Utah, David S. Bowles

Reports

During 1982, 1983, and 1984, abnormally wet conditions in Utah triggered flash floods, landslides, and debris flows. Pore pressures built in hillside soils below melting snows and during prolonged periods of rainfall until the mass suddenly gave way, sometimes as a landslide and other times as a non-Newtonian debris flow that moved rapidly long distances down mountain slopes until finally stiffened by moisture loss or velocity loss because of flatter gradients. Also, runoff from heavy rainfall bursts picked up weathered and other loose material that accumulated on land surfaces over long dry periods . The sediment laden waters flowed out …


Evaluation Of Structure And Growth Of Bluegills And Black Bullheads Stocked With Largemouth Bass In South Dakota Farm Ponds, Charles E. Morris Jan 1985

Evaluation Of Structure And Growth Of Bluegills And Black Bullheads Stocked With Largemouth Bass In South Dakota Farm Ponds, Charles E. Morris

Electronic Theses and Dissertations

A two-year study estimated standing stock, growth, condition, survival rates, and population structure of bluegills (Lepomis macrochirus) and black bullheads (Ictalurus melas) stocked in South Dakota farm ponds with largemouth bass (Micropterus salmoides). Bluegills and black bullheads reproduced during the second growing seasons and by the end of the study three year-classes of fishes were present in most ponds. Mean back-calculated bluegill total lengths at annuli 1-3 were 58, 125, and 153 mm, respectively. Mean back-calculated black bullhead total lengths at annuli 1-3 were 82, 182, and 240 mm, respectively. A significant north vs south difference (P≤0.05) in third-year bullhead …


Lungworm Infections, Reproduction And Summer Habitat Use Of Bighorn Sheep In Custer State Park, South Dakota, Gary C. Brundige Jan 1985

Lungworm Infections, Reproduction And Summer Habitat Use Of Bighorn Sheep In Custer State Park, South Dakota, Gary C. Brundige

Electronic Theses and Dissertations

Bighorn sheep (Ovis canadensis) were once indigenous to the Black Hills and Badlands of South Dakota. When European settlers moved into this region during the late 1800' s, market hunting, loss of habitat, and introduction of animal diseases and parasites caused the subspecies of the region, the Audubon's bighorn sheep (O. c. auduboni), to become extinct by 1916 (Buechner 1960). To reestablish bighorn sheep in the Black Hills, 8 Rocky Mountain bighorn sheep (O. c. canadensis) were introduced into the former range of the Audubon's sheep in 1922. Finding the habitat to be very suitable, this small population increased to …


Distribution, Temperature Selection, And Gonadal Development Of Fishes In A Power Plant Cooling Reservoir, Henry R. Maddux Jan 1985

Distribution, Temperature Selection, And Gonadal Development Of Fishes In A Power Plant Cooling Reservoir, Henry R. Maddux

Electronic Theses and Dissertations

The distribution, temperature selection, and gonadal development of fishes in the Big Stone Power Plant cooling reservoir were examined from July 1982 through July 1983. A total of 46.8% of the fishes captured during this study were from the discharge area, while 31.8% and 21.4% of the fish occurred in the mixing and intake areas, respectively. The mean water temperature occupied by common carp (Cyprinus carpio) ranged from 7.5 C in February to 31.2 C in August. Black bullheads (Ictalurus melas) were generally benthic and captured in the cooler water. The mean water temperature occupied by black bullheads ranged from …


Water Supplies : Dams And Roaded Catchments, W J. Burdass, T. R. Negus, A. L. Prout, I. A. F. Laing Jan 1985

Water Supplies : Dams And Roaded Catchments, W J. Burdass, T. R. Negus, A. L. Prout, I. A. F. Laing

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

Western Australia's Upper and Lower Great Southern statistical areas include most of the broad-scale agricultural land south of a line from Perth to Hyden. Much of the area is well-developed and carries 13.4 million sheep, 203 00 cattle and 95 000 pigs, almost half the State's livestock.

There are few natural rivers and lakes to water livestock in summer and much of the bore water is salty. On-farm waterr conservation, therefore, consits mainly of excavated earth tanks (dams) which are filled by surface runoff or shallow seepage. In the drier areas and in the sandplain roaded catchments have neen built …


Northern Wheatbelt Water Supply Study, I A F Laing, R. M. Pridham Jan 1985

Northern Wheatbelt Water Supply Study, I A F Laing, R. M. Pridham

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

Department of Agriculture surveys have shown that many farms in Western australia's northern wheatbelt have inadequate water supplies. More than 80 per cent of all farms in that area depend soley on groundwater for watering livestock, a much higher percentage than for most other farming areas. Because groundwater salinities have increased in recent years, concern is held for the long-term future of this recource.

In contrast to more southern agricultural areas, farm dams in the northern wheatbelt are relatively uncommon. Only 30 per cent of the existing dams in the northern wheatbelt constitute effective water supplies. More than half of …


Increasing Groundwater Salinity In The Northern Wheatbelt, R J. Mcgowan Jan 1985

Increasing Groundwater Salinity In The Northern Wheatbelt, R J. Mcgowan

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

Every farmer in western Australia's northern wheatbelt will know of a groundwater supply, be it bore, well or soak. that has become increasingly saline. The groundwater may have become more saline over a period of 15 years or more, or have been noticed only recently. Inevitably, the bore will lie within an area cleared for agriculture. This increase in groundwater salinity may be associated with soil salinisation. Although researchers have some understanding of the processes causing salinisation of groundwater in the wheatbelt and the extent of the problem, little is known about the rates of salinisation and groundwater rise. A …


Ua37/30/2 Wku Research Notecards - E Topics, Lowell Harrison Jan 1985

Ua37/30/2 Wku Research Notecards - E Topics, Lowell Harrison

Faculty/Staff Personal Papers

Notecards created by Lowell Harrison while researching his book Western Kentucky University. The cards transcribed below are for 104 topics beginning with E ranging from Eagle Prep to Extension.


Fundy Tidal Power: A Need To Reassess The Environmental Framework Protecting The Transboundary Environment, Robert W. Rudolph Jan 1985

Fundy Tidal Power: A Need To Reassess The Environmental Framework Protecting The Transboundary Environment, Robert W. Rudolph

Marine Affairs Theses and Major Papers

The concept of harnessing the tides for energy is receiving renewed attention in the maritime provinces of Canada and northeastern United States where a scarcity of indigenous energy resources exists. While proposals for several small tidal power facilities are being considered in Maine, in Canada, Nova Scotia officials are moving ahead with plans for a major tidal power project (4,028 MW) in the Minas Basin in the Bay of Fundy. The vast majority of the power generated from this facility is expected to be exported to the New York and New England areas which have a greater energy demand that …


Soils And The Location Of Cacao Orchards At A Maya Site In Western Belize, Daniel R. Muhs, Robert R. Kautz, J. Jefferson Mackinnon Jan 1985

Soils And The Location Of Cacao Orchards At A Maya Site In Western Belize, Daniel R. Muhs, Robert R. Kautz, J. Jefferson Mackinnon

United States Geological Survey: Staff Publications

Cacao was one of the most important crops of the lowland Maya. Ethnohistoric sources document that the Postclassic-Colonial Period Maya settlement of Tipu in western Belize was an important cacao-growing center, yet evidence of where the cacao was grown is not apparent. We analysed the suitability of floodplain, terrace, and bedrock soils for cacao cultivation. Our results indicate that the soils most likely to have been used for cacao growth were those on the modem floodplain of the Macal River, based on their suitable physical and chemical properties. In addition, buried stone walls of Late Classic or Postclassic age that …


The Probe, Issue 48 - December 1984 Dec 1984

The Probe, Issue 48 - December 1984

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association No. 48 December, 1984
Why do We have Laws Requiring the Preservation of Species?
Animal Rightists
Tennessee Coyotes
Letters to Ye Ed
Northwest Section WIldlife Meeting 1984
Live Trap
Psycho Coyote
Mobilization of Animals
National Park Systems do Differ
Blackfooted Ferrets
Animal Liberation
Raccoon Problems
Animal Protection Institute


John Muir Newsletter, November/December 1984, Holt-Atherton Pacific Center For Western Studies Nov 1984

John Muir Newsletter, November/December 1984, Holt-Atherton Pacific Center For Western Studies

Muir Center Newsletters (1981-2015)

Holt-Atherton Pacific Center \\/ / University of the Pacific for Western Studies \ Stockton, Calif 95211 VOLUME 4 NOVEMBER/DECEMBER 1984 NUMBER 5 & 6 EDITORIAL STAFF: RONALD H. LIMBAUGH. KIRSTEN E. LEWIS MICROFORM PROJECT PROGRESS (?) REPORT In our last newsletter we spoke confidently of wrapping up the project in time for the Muir Conference in April. Now we're not quite so sure. We'll be close, but technical problems and some staff changes have forced us to revise our timetable. At this writing we are projecting a July 1 publication date. One big recent change was the reorganization of our …


The Probe, Issue 47 - November 1984 Nov 1984

The Probe, Issue 47 - November 1984

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association No. 47 November, 1984
EPA vs. Strychnine
Cyanide Deterioration In M-445
Legislation
Forestry ADC
BLM's FY 1985 budget
Nature Conservancy
Peromyscus polionotus
Pigeon Economics
Sandhill Cranes
Letters to Ye Ed
Suggested Curriculum for NADCA Training Program
Animal Rightists
FIFRA Scientific Advisory Panel
Noise-making Devices to scare Birds


Groundwater Management By Linear Programming, Seungho Song Oct 1984

Groundwater Management By Linear Programming, Seungho Song

Civil & Environmental Engineering Theses & Dissertations

Three hydraulic optimization models are developed. These models combine the finite difference equations of two-dimensional groundwater flow in composite aquifers with various linear programming techniques. The hydraulic submodel employed in these hydraulic optimization models is so versatile that it accounts for time varying pumpage, leaky artesian conditions, a variety of boundary conditions, induced infiltrations from streams or rivers, and conversion from artesian to water table conditions. The objective of submodel 1 is to maximize the total hydraulic head from pumping wells at the end of a study period. The objective of submodel 2 is the same as submodel 1, but …


John Muir Newsletter, August/October 1984, Holt-Atherton Pacific Center For Western Studies Aug 1984

John Muir Newsletter, August/October 1984, Holt-Atherton Pacific Center For Western Studies

Muir Center Newsletters (1981-2015)

Holt-Atherton Pacific Center \\/ / University of the Pacific for Western Studies X^ / Stockton, Calif 95211 VOLUME 4 AUGUST/OCTOBER 1984 NUMBER 4 EDITORIAL STAFF: RONALD H. LIMBAUGH, KIRSTEN E. LEWIS PROJECT UPDATE Muir scholars take note: the microform project is rounding third and heading for home. Since the last newsletter we have completed the filming of Series II (journals) and Series IV (illustrative works), and have begun filming Series III (manuscripts). The last series to be filmed, Series I (correspondence), is fully controlled but not yet camera-ready. By November we expect to have all the filming completed and processed. …


Precedings Of Arkansas Lakes Symposium Limnological Studies Of Lake Chicot, Arkansas, Joe F. Nix, Frank R. Schiebe Aug 1984

Precedings Of Arkansas Lakes Symposium Limnological Studies Of Lake Chicot, Arkansas, Joe F. Nix, Frank R. Schiebe

Arkansas Water Resources Center Technical Reports

Lake Chicot is an oxbow lake that was created more than 600 years ago by the meandering of the Mississippi River. It is located in Chicot county in southeastern Arkansas adjacent to the present Mississippi River. As the largest natural lake in Arkansas it earned an early reputation for its good fishing and recreational value. Development of a levee system forced the enlargement of the lakes watershed to its present 350 square miles. Initially this alteration affected only the volume flow through the lake, drastically reducing the water residence time. Because the watershed was located in one of the most …


Discharge And Travel Time Determinations In The Royal Spring Groundwater Basin, Kentucky, John Thrailkill, Douglas R. Gouzie Aug 1984

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 …


Introduction To Reserved Water Rights, Ralph W. Johnson Jun 1984

Introduction To Reserved Water Rights, Ralph W. Johnson

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

16 pages.


Agenda: The Federal Impact On State Water Rights, University Of Colorado Boulder. Natural Resources Law Center Jun 1984

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.


Flpma, Pria, And The Western Livestock Industry, George Cameron Coggins Jun 1984

Flpma, Pria, And The Western Livestock Industry, George Cameron Coggins

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

32 pages.

Contains list of research sources (pages 1-3).


Agenda: The Federal Land Policy And Management Act, University Of Colorado Boulder. Natural Resources Law Center Jun 1984

Agenda: The Federal Land Policy And Management Act, University Of Colorado Boulder. Natural Resources Law Center

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

Conference organizers and/or faculty included University of Colorado School of Law professors James N. Corbridge, Lawrence J. MacDonnell, David H. Getches and Charles F. Wilkinson.

This important piece of legislation, passed by Congress in 1976 following many years of extensive study and debate, directs the activities of the nation's major land manager--the Bureau of Land Management. The FLPMA conference will bring together a distinguished group of experts to review the law itself, to consider the effectiveness with which it has been implemented, and to discuss the key issues which have arisen under its implementation.


Comments On The Geologic History Of The Ogallala Formation In The Southern Panhandle Of Nebraska, Robert F. Diffendal Jr. Jun 1984

Comments On The Geologic History Of The Ogallala Formation In The Southern Panhandle Of Nebraska, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

The southern Panhandle of Nebraska and the adjoining parts of southeastern Wyoming and northeastern Colorado are unusual places to examine the geologic history of the Ogallala Formation because they are much closer to the source areas of much of the sediment which makes up the unit than are other sites along the Ogallala outcrop belt. This study in Nebraska combined with results of earlier work there, in southeastern Wyoming, and ; northeastern Colorado, outlines the complex cut and fill history of the Ogallala close to Rocky Mountain source areas.

Parts of the Ogallala consist of fills of sand and gravel, …


The Prairie Naturalist Volume 16, No. 2. June 1984 Jun 1984

The Prairie Naturalist Volume 16, No. 2. June 1984

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Sea bloom , Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

AUTUMN WEIGHTS OF PLAINS SHARP-TAILED GROUSE IN MONTANA ▪ J. E. Swenson and R. L. Eng

VEGETATION PROFILE AND GRASSLAND BIRD RESPONSE TO SPRING BURNING ▪ G. E. Huber and A. A. Steuter

WETLAND PRESERVATION CONFLICTS IN NORTH DAKOTA: ECONOMIC INCENTIVES AND LANDOWNER ATTITUDES ▪ R. D. Saylor, R. A. Stromstad and M. E. Winger

COLLEMBOLA OF SOUTHWESTERN NORTH DAKOTA: SPECIES COMPOSITION AND HABITAT DISTRIBUTION ▪ B. L. Benner and P. B. Kannowski

NEW RECORDS OF EARTHWORMS FROM KANSAS (Oligochaeta: …


John Muir Newsletter, May/July 1984, Holt-Atherton Pacific Center For Western Studies May 1984

John Muir Newsletter, May/July 1984, Holt-Atherton Pacific Center For Western Studies

Muir Center Newsletters (1981-2015)

Holt-Atherton Pacific Center \\/ / University of the Pacific for Western Studies \ / Stockton, Calif 95211 VOLUME 4 MAY/JULY 1984 NUMBER 3 EDITORIAL STAFF: RONALD H. UMBAUGH, KIRSTEN E. LEWIS PROJECT UPDATE Remember us? Sorry we have kept you waiting for news, but we have a good excuse: we're swamped! Since May 1 we have: - completed processing all remaining Muir papers scheduled for filming. This means the University of the Pacific collection is completely reorganized and controlled, and the incoming copies in other repositories incorporated into the filming sequence. The preliminary inventory has been replaced by a card …


The Probe, Issue 44 - July 1984 May 1984

The Probe, Issue 44 - July 1984

The Probe: Newsletter of the National Animal Damage Control Association

The Probe National Animal Damage Control Association
No. 43 May, 1984 [sic] This issue is actually No. 44 July, 1984
Denver City Council banned trapping
Sewer Snakes
Federal Register
The maze of fences, guards, concrete barriers, laser beams, sensors, etc. are no match for any wild animals that want to inhabit the President's house.
Albuquerque Tribune
Letters to Ye Ed
Rabies
Strychnine
Endangered hall of fame
Animal Rights
Membership
Woodpecker Repellent
NADCA Policy
Rocky Mountain Trapper’s College


U. S. Arctic Oil: A Perspective, William T. Decamp Apr 1984

U. S. Arctic Oil: A Perspective, William T. Decamp

Marine Affairs Theses and Major Papers

The United States Arctic, for the purposes of this study, encompasses the seabed and subsoil under the resource jurisdiction of the United States, including the Bering Sea offshore, and the Hope Basin, Chukchi (Barrow Arch) and Beaufort (Diapir Field) Seas, and land territory north of the Brooks Range onshore. Although U.S. credibility with its Arctic allies would be enhanced by its becoming a party to the Law of the Sea Convention, this remote possibility is not a prerequisite for a successful U.S. Arctic Policy. It is more important that U.S. policy goals are perceived among its Arctic allies as being …


Impact Of The Belding’S Ground Squirrel, Spermophilus Beldingi, On Alfalfa Production In Northeastern California, Warren C. Sauer Mar 1984

Impact Of The Belding’S Ground Squirrel, Spermophilus Beldingi, On Alfalfa Production In Northeastern California, Warren C. Sauer

Vertebrate Pest Conference Proceedings: 11th (1984)

Throughout the history of agriculture, man has competed with various animal species for the fruits of his labors. During the past 60 years, many research papers have dealt with the impact of field rodents and lagomorphs on agriculture. Damage has been estimated in various ways, from dollar values to cattle unit losses. In an early study, Shaw (1921) attempted to measure the amount of winter wheat loss due to Columbia ground squirrel. Grinnel and Dixon (1918) related ground squirrel damage to forage loss and cattle production.

Several rodent enclosure and exclosure studies have been conducted in an attempt to measure …


The Use Of Wild Carnivore Serology In Determining Patterns Of Plague Activity In Rodents In California, Charles R. Smith, Bernard C. Nelson, Allan M. Barnes Mar 1984

The Use Of Wild Carnivore Serology In Determining Patterns Of Plague Activity In Rodents In California, Charles R. Smith, Bernard C. Nelson, Allan M. Barnes

Vertebrate Pest Conference Proceedings: 11th (1984)

Carnivores obtain plague infection through ingestion of infected rodents or rabbits or via flea bite. Most are resistant to infection, show little or no symptoms, and produce antibodies to Yersinia pestis which may persist for several months. Consequently, carnivores can be used as serological plague sentinels using the specific passive or indirect hemagglutination test in the laboratory. A carnivore serology program for plague detection began in California in 1974. The program is a cooperative effort incorporating state and federal vector-borne disease units and state and federal predator animal control personnel. The program has proven to be an important tool in …