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Full-Text Articles in Environmental Health and Protection

Riparian Plant Water Relations Along The North Fork Of The Kings River, California, J. L. Nachlinger, S. D. Smith, R. J. Risser Jan 1989

Riparian Plant Water Relations Along The North Fork Of The Kings River, California, J. L. Nachlinger, S. D. Smith, R. J. Risser

Life Sciences Faculty Research

Plant water relations of five obligate ripar-ian species were studied along California's North Fork Kings River. Diurnal stomatal conductance, transpi-ration, and xylem pressure potentials were measured throughout the 1986 growing season and in mid-season in 1987. Patterns were similar for all species although absolute values varied considerably. Maximum stomatal conductance occurred early in the day and season during favorable environmental conditions and decreased as air temperature and the vapor pressure difference between the leaf and air increased. Maximum transpiration rates occurred in mid-morning and mid-summer resulting in estimated daily water losses per unit sunlit leaf area of 163-328 mol H2O …


Maine Nonpoint Source Pollution Assessment Report, Bureau Of Water Quality Control Jan 1989

Maine Nonpoint Source Pollution Assessment Report, Bureau Of Water Quality Control

Maine Collection

Maine Nonpoint Source Pollution Assessment Report

Prepared by the Maine Department of Environmental Protection, Bureau of Water Quality Control, Augusta, Maine 1989.

Contents: Executive Summary / Introduction / Methodology / Statewide Water Quality Summary / State And Local Agency Programs for Control of Nonpoint Source Pollution / Process for Identification of Best Management Practices and Associated Standards / List of References / List of Figures / List of Tables



Improved Fertilizing Practices On The Peel-Harvey Catchment, P T. Arkell Jan 1989

Improved Fertilizing Practices On The Peel-Harvey Catchment, P T. Arkell

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

Broad-acre farmers in the Peel-Harvey catchment have met a challange and achieved a great deal since the fertilizer extension programme started in 1983.

The main objective of the extension programme has been to ensure that every year three-quarters of the farmers make economically and technically sound fertilizer decisions, thus causing a minimum amount of phosphorus to enter the waterways of the Peel-Harvey estuarine system.


Irrigation And Fertilizer Management For Horticultural Crops On The Swan Coastal Plain, I R. Mcpharlin, Greg Luke Jan 1989

Irrigation And Fertilizer Management For Horticultural Crops On The Swan Coastal Plain, I R. Mcpharlin, Greg Luke

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

The Swan Coastal Plain is an important area for the production of vegetables, flowers and fruits in Western Australia. The yellow Cottesloe, Karrakatta and the white-grey Bassendean Sands upon which most of this production is based are infertile in their natural state and require large inputs of fertilizer for succesful production of horticultural crops.

Improved irrigation and fertilizer management will be needed to reduce nutrient leaching from horticultural crops on the coastal plain. This will probably involve applying fertilizer and water more frequently, but in smaller quantaties thaan currently practiced. The result should more closely match water and fertilizer supply …


Planning For Horticultural Expansion On The Swan Coastal Plain, P Coghlan, Geoff Moore, Jim Dixon Jan 1989

Planning For Horticultural Expansion On The Swan Coastal Plain, P Coghlan, Geoff Moore, Jim Dixon

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

Horticulture is an intensive, high value form of agriculture highly dependant on the availability of good water supplies for the year-round production of fresh produce. Production increase in Western Australia and the encouragement and development of export markets has caused rapid expansion if the industry in recent years.

Expansion is expected to continue, placing severe pressure on available water supplies and suitable land close to markets. At present' 90 per cent of the Stase's horticultural land is on the Swan Coastal Plain and minor selected hills areas around Perth.


Loss Of Biological Diversity: A Global Crisis Requiring International Solutions: A Report To The National Science Board, Craig Call Black, Perry L. Adkisson, Gardner Mallard Brown, Rita Rossi Colwell, Charles E. Hess, James B. Holderman, K. June Lindstedt-Siva, William A. Nierenberg, Peter Hamilton Raven, Theodore M. Smith, Edward O. Wilson, W. Franklin Harris Jan 1989

Loss Of Biological Diversity: A Global Crisis Requiring International Solutions: A Report To The National Science Board, Craig Call Black, Perry L. Adkisson, Gardner Mallard Brown, Rita Rossi Colwell, Charles E. Hess, James B. Holderman, K. June Lindstedt-Siva, William A. Nierenberg, Peter Hamilton Raven, Theodore M. Smith, Edward O. Wilson, W. Franklin Harris

Harold W. Manter Laboratory of Parasitology: Library Materials

Executive Summary

Biological diversity refers to the variety and variability among living organisms and the ecological complexes in which they occur. Diversity can be defined as the number of different items and their relative frequency. For biological diversity, these items are organized at many levels, ranging from complete ecosystems to the chemical structures that are the molecular basis of heredity. Thus, the term encompasses different ecosystems, species, genes, and their relative abundance (OTA, 1987).

There is an ongoing, unprecedented loss of the variety as well as absolute numbers of organisms-from the smallest microorganism to the largest and most spectacular of …


Timber Harvesting On Private Lands: The Washington Timber– Fish–Wildlife Agreement, John P. Mcmahon Jun 1988

Timber Harvesting On Private Lands: The Washington Timber– Fish–Wildlife Agreement, John P. Mcmahon

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

24 pages.

Contains 3 pages of references.


Bay/Delta Standards Memorandum And Exhibits, Thomas J. Graff Jun 1988

Bay/Delta Standards Memorandum And Exhibits, Thomas J. Graff

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

47 pages.


The 1987 Nonpoint Source Pollution Amendments And State Progress Under The New Program, John H. Davidson Jun 1988

The 1987 Nonpoint Source Pollution Amendments And State Progress Under The New Program, John H. Davidson

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

143 pages.

Contains 4 pages of references.


Antidegradation And Nonpoint Source Pollution In The West, H. Michael Anderson Jun 1988

Antidegradation And Nonpoint Source Pollution In The West, H. Michael Anderson

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

31 pages.

Contains references.


Soil Erosion, Agrichemicals And Water Quality: A Need For A New Conservation Ethic?, Christine Olsenius Jun 1988

Soil Erosion, Agrichemicals And Water Quality: A Need For A New Conservation Ethic?, Christine Olsenius

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

24 pages.

Contains references.


The San Joaquin–Sacramento Delta, David R. Beringer Jun 1988

The San Joaquin–Sacramento Delta, David R. Beringer

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

20 pages.

Contains 2 pages of references.


Public Land Livestock Grazing, Water Quality And Riparian Ecosystems: The Evolving Legal And Technical Context, Richard H. Braun Jun 1988

Public Land Livestock Grazing, Water Quality And Riparian Ecosystems: The Evolving Legal And Technical Context, Richard H. Braun

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

8 pages.

Contains 1 page of references.


Legal Issues: San Francisco Bay, Sacramento-San Joaquin River Delta And Estuary, Stuart L. Somach Jun 1988

Legal Issues: San Francisco Bay, Sacramento-San Joaquin River Delta And Estuary, Stuart L. Somach

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

48 pages.

Contains footnotes.


Agenda: Water Quality Control: Integrating Beneficial Use And Environmental Protection, University Of Colorado Boulder. Natural Resources Law Center Jun 1988

Agenda: Water Quality Control: Integrating Beneficial Use And Environmental Protection, University Of Colorado Boulder. Natural Resources Law Center

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

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

Protecting water quality is essential to preserve the many beneficial uses of western water resources. This conference addresses the dominant federal requirements in the Clean Water Act, including the important major revisions enacted by Congress in 1987, with special attention to western problems regarding nonpoint source pollution. Developments in groundwater quality regulation are considered, as are selected issues concerning the implications of state and federal water quality regulation for the traditional exercise of water rights.


A Practitioner’S Perspective On Section 404 Permitting—Or—How To Survive The Daze From The Hazy Maze, Marcia M. Hughes Jun 1988

A Practitioner’S Perspective On Section 404 Permitting—Or—How To Survive The Daze From The Hazy Maze, Marcia M. Hughes

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

17 pages.

Contains footnotes and references.


Characterization Of The Aquatic Environment In Lake Mead Near The Proposed Spring Canyon Pumped-Storage Project, And Assessment Of Potential Aquatic Impacts, Charles R. Liston, Stephen J. Grabowski, Bureau Of Reclamation Jun 1988

Characterization Of The Aquatic Environment In Lake Mead Near The Proposed Spring Canyon Pumped-Storage Project, And Assessment Of Potential Aquatic Impacts, Charles R. Liston, Stephen J. Grabowski, Bureau Of Reclamation

Publications (WR)

A pumped storage system consists of an upper reservoir and lower reservoir separated by an elevation difference. During low demand energy periods such as nights and weekends water is pumped from the lower to the upper reservoir using available energy from conventional steam electric power plants. During high energy demand periods, such as mornings and afternoons of weekdays, upper reservoir water is allowed to drop back down through the same system of water conduits and turbines, generating electricity to conveniently meet abrupt electrical energy requirements. The same water turbines thus act both as pumps and as conventional hydroelectric turbines. Because …


A Field Perspective On Groundwater Contamination, John A. Cherry May 1988

A Field Perspective On Groundwater Contamination, John A. Cherry

Maine Collection

A Field Perspective on Groundwater Contamination

Geological Society of Maine Distinguished Lecturer John Cherry, University of Waterloo, Ontario, sponsored by the Department of Geosciences, University of Southern Maine, 19th May 1988.

Contents: Lecture 1 : Contaminant Migration Processes Illustrated by Field Experiments / Lecture 2 : Behavior of Dense Non-Aqueous Phase Liquids, Illustrated by Lab Experiments and Conceptual Examples / Lecture 3 : Field Case Histories on Groundwater Contamination / Lecture 4 : Hydrogeological Concepts and Criteria for Waste Disposal / Waterloo Center for Groundwater Research Publications List


A Decade Of Use Of Livestock Guarding Dogs, Raymond Coppinger, Lorna Coppinger, Gail Langeloh, Lori Gettler, Jay Lorenz Mar 1988

A Decade Of Use Of Livestock Guarding Dogs, Raymond Coppinger, Lorna Coppinger, Gail Langeloh, Lori Gettler, Jay Lorenz

Vertebrate Pest Conference Proceedings: 13th (1988)

Results from a ten-year study of livestock guarding dogs show that the dogs are an effective tool for reducing predation. Average reduction attained by five strains of dogs (Anatolian Shepherds, Maremmas, Shar Planinetz, Anatolian/ Shars, Maremma/Shars) was 64%, with predation reduced to zero for 53% of reporting producers in 1986. Variations in trustworthy, attentive and protective behavior of the dogs were breed-specific, and offer mechanisms for improving the system.


Environmental Assessment Of Las Vegas Wash And Lake Mead Artificial Wetlands Demonstration Project, John R. Baker, R. M. Gersberg, U.S. Environmental Protection Agency Feb 1988

Environmental Assessment Of Las Vegas Wash And Lake Mead Artificial Wetlands Demonstration Project, John R. Baker, R. M. Gersberg, U.S. Environmental Protection Agency

Publications (WR)

The effective use of artificial wetlands for treatment of municipal wastewater is well documented; however, design and economic data for artificial wetlands development are limited (Gersberg et al., 1984a). This is due partly to regional differences in climate, soils, and vegetation and partly to the desired waste treatment. As a result, specific treatment levels and cost benefits relative to the use of an artificial wetlands for a particular site cannot be evaluated adequately without a pilot demonstration project. Las Vegas Wash receives sewage effluent from the Las Vegas metropolitan area and has been designated as a wetlands community park. Las …


Limnological Monitoring Data For Lake Mead During 1987: Technical Report No. 20, Larry J. Paulson Jan 1988

Limnological Monitoring Data For Lake Mead During 1987: Technical Report No. 20, Larry J. Paulson

Publications (WR)

Limnological monitoring was conducted in Las Vegas Bay and Boulder Basin from April to December of 1987. The purpose of the monitoring was to (i) document possible changes in water quality resulting from decreased phosphorus loading in Las Vegas Wash, and (ii) establish a data base for evaluating the adequacy of water quality standards.


Changes In The Morphometry Of Las Vegas Wash And The Impact On Water Quality, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation Jan 1988

Changes In The Morphometry Of Las Vegas Wash And The Impact On Water Quality, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation

Publications (WR)

Las Vegas Wash, a natural wash east of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from two sewage treatment plants to Lake Mead. Over 80 percent of the normal discharge of approximately 3.4 m3/s (120 ft3/s) consists of effluent from the City of Las Vegas and Clark County sewage treatment plants. Beginning in the 1950s, a large wetland area developed along the wash that supported waterfowl populations and contributed to some water quality transformations. Heavy rains and subsequent flooding in the area in 1983 and 1984 resulted in erosion and channelization that greatly …


Estimation Of Food Limitation In Daphnia Pulex From Boulder Basin, Lake Mead, Thomas Mark Bartanen Aug 1987

Estimation Of Food Limitation In Daphnia Pulex From Boulder Basin, Lake Mead, Thomas Mark Bartanen

Publications (WR)

In February, 1982 I began a year-long study to determine if growth and reproduction in Daphnia Pulex were limited by the amount of food available in Boulder Basin, Lake Mead. To determine this, I made monthly collections of Daphnia Pulex and natural lake seston from an already established station in Boulder Basin. I cultured the Daphnia Pulex under simulated field conditions in a flow-through feeding apparatus using four different food regimes; 1-natural lake seston filtered through 80 um mesh to remove other zooplankton, 2-lake seston (as above) with an enrichment of 103 cells-ml-1 of Chlamydomonas reinhardti, 3-lake …


Analysis Of The Water-Quality Standards Proposed By The Nevada Division Of Environmental Protection, City Of Las Vegas, Nevada Aug 1987

Analysis Of The Water-Quality Standards Proposed By The Nevada Division Of Environmental Protection, City Of Las Vegas, Nevada

Publications (WR)

The Nevada Division of Environmental Protection (DEP) has proposed water-quality standards, applicable to Las Vegas Bay and Lake Mead, for (1) chlorophyll, (2) un-ionized ammonia, and (3) pH.

We have concluded that the proposed standards are unlikely to protect or improve water quality in Lake Mead. The proposed chlorophyll standard:

May harm the fishery. Lakes with more chlorophyll have greater fish production.

Will not improve clarity. Chlorophyll concentrations above 30 ug/1 have little effect on clarity.

Will not protect against scums or dominance by blue-green algae. Lake Mead shows no consistent relationship between chlorophyll and scums or blue-green dominance.

Will …


Integrating Water Quality Objectives With Traditional Water Rights In California: The Sacramento–San Joaquin Delta Case, Ronald B. Robie Jun 1987

Integrating Water Quality Objectives With Traditional Water Rights In California: The Sacramento–San Joaquin Delta Case, Ronald B. Robie

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

14 pages (includes 1 map).


The Homestake Project & Water Quality Issues, Tad Foster Jun 1987

The Homestake Project & Water Quality Issues, Tad Foster

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

5 pages (includes 1 map).


Conflicts Between Water Rights Administration And Water Quality Protection, Jan D. Laitos Jun 1987

Conflicts Between Water Rights Administration And Water Quality Protection, Jan D. Laitos

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

43 pages.


Reconciling Large-Scale Water Development And Water Quality Effects, James S. Sanderson Jun 1987

Reconciling Large-Scale Water Development And Water Quality Effects, James S. Sanderson

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

6 pages.


Wetlands Protection: The 404 Program, Patrick A. Parenteau Jun 1987

Wetlands Protection: The 404 Program, Patrick A. Parenteau

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

13 pages.

Includes unsigned annotations by David Getches.


The Clean Water Act, Water Quality, And Water Use, Bruce D. Ray Jun 1987

The Clean Water Act, Water Quality, And Water Use, Bruce D. Ray

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

56 pages.

Includes unsigned annotations by David Getches.