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Articles 9151 - 9180 of 9451

Full-Text Articles in Physical Sciences and Mathematics

Center For Sustainable Agricultural Systems Newsletter, July/August 1993 Jul 1993

Center For Sustainable Agricultural Systems Newsletter, July/August 1993

Center for Sustainable Agricultural Systems: Newsletter (1993–2000)

Contents:

Proposed North Central Institute for Agroecology

Call for LISA/ACE Preproposals

New Agency Formed in Interior Department

National Sustainable Ag Advisory Council Visits Nebraska

President's Council on Sustainable Development

Earthbound Project at Nebraska State Fair

Midwest Flooding Increases Soil Erosion

Report Calls for Action on Pesticides

Status of Federal Programs


Fisheries Research Report No.100 - The Impact Of Trawling For Saucer Scallops And Western King Prawns On The Benthic Communities In Coastal Waters Off South-Western Australia, L. J.B. Laurenson, P. Unsworth, J. W. Penn, R. C.J. Lenanton Jun 1993

Fisheries Research Report No.100 - The Impact Of Trawling For Saucer Scallops And Western King Prawns On The Benthic Communities In Coastal Waters Off South-Western Australia, L. J.B. Laurenson, P. Unsworth, J. W. Penn, R. C.J. Lenanton

Fisheries Research Reports

A two year study was undertaken to collect data for the assessment of the impact of the saucer scallop and western king prawn trawl fisheries on the benthic communities in coastal waters off south western Australia, between 31°20'5 and 34°23'5 latitude.

Monitoring of reported commercial landings, on-board sampling of commercial catches, research vessel trawl surveys, experimental and exploratory trawling, and underwater television observations, have enabled the development of an extensive data-base on the fishery and benthic communities of the region.

These data indicate that the existing fishery operates on a number of relatively small, discrete grounds where saucer scallops or …


Comparison Of Predicted And Observed Dioxin Levels In Fish: Implications For Risk Assessment, Judy S. Lakind, Daniel Q. Naiman Jun 1993

Comparison Of Predicted And Observed Dioxin Levels In Fish: Implications For Risk Assessment, Judy S. Lakind, Daniel Q. Naiman

RISK: Health, Safety & Environment (1990-2002)

After comparing sampled and modelled dioxin levels in the tissue of fish near pulp and paper mill discharges, the authors argue that, until an improved bioaccumulation model is incorporated into EPA's Risk assessment process, determination of human health Risks associated with consuming dioxin-contaminated fish should be based on sampling.


Center For Sustainable Agricultural Systems Newsletter, May/June 1993 May 1993

Center For Sustainable Agricultural Systems Newsletter, May/June 1993

Center for Sustainable Agricultural Systems: Newsletter (1993–2000)

Contents:

Sustainable Ag Tour

ERS Sustainable Ag Initiative

Highlights from "Farm Bill" Seminar Series

Rural Policy Symposium Proceedings

SARE Grant Programs

SARE Funding - Chapters 2 & 3

Sustainable Agriculture Directory of Expertise

Integrated Farm Projects - ARDC

Study of Farm Family Health

Conference on Science and Sustainability


Center For Sustainable Agricultural Systems Newsletter, March/April 1993 Mar 1993

Center For Sustainable Agricultural Systems Newsletter, March/April 1993

Center for Sustainable Agricultural Systems: Newsletter (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


Saving The Catchments Of Albany's Harbours, Ashley Prout Jan 1993

Saving The Catchments Of Albany's Harbours, Ashley Prout

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

Fertiliser, particularly phosphorus, running off farm land is a major source of nutrient entering Albany's harbours. Oyster Harbour, which has a large rural catchment, is especially at risk.

The build-up in nutrients in the harbours has caused nuisance algal growth since the early 1970s and subseuent death of more than half the seagrass beds, which are vital to the areas marine life.

The Department of Agriculture, at the request of the Environmental protection Authority, has developed and promoted catchment management plans that enable rural land holders to reduce the amount of run-off into the harbours without necessarily sacrificing farm productivity. …


Sheep And Wool Industries Need To Improve Their Performance, Rob Kelly, Tim Marshall Jan 1993

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.


For Whom Is The Rural Economy Resilient? Initial Effects Of Drought In Western Sudan, Leslie C. Gray, Michael Kevane Jan 1993

For Whom Is The Rural Economy Resilient? Initial Effects Of Drought In Western Sudan, Leslie C. Gray, Michael Kevane

Economics

This discussion piece addresses two recent debates: entitlement theory and the resilience of rural systems. The authors find that in western Sudan entitlement theory provides a specific and useful framework for understanding the nature of the crisis confronting the society. Arguments about the resilience of rural systems, however, need to be more closely examined and will depend on site-specific factors. The rural economy and society of western Sudan were not found to be resilient.


Improving Sustainable Production From Water Repellent Sands, Paul Blackwell Jan 1993

Improving Sustainable Production From Water Repellent Sands, Paul Blackwell

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

The agricultural management of water repellent ( non-wetting) sands is difficult, and production from them is mostly low. However, there are ways to make them more productive.

Furrow sowing and the incorporation of dispersive clay are two likely methods to make these soils easier to manage, more productive and more profitable than they are now.

This article discusses several aspects of our research on water repellent sands. In addition, some of the costs and benefits of alternative management strategies are outlined.


Floriculture : A Blooming Business, Department Of Agriculture And Food, Western Australia Jan 1993

Floriculture : A Blooming Business, Department Of Agriculture And Food, Western Australia

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

Over the past 1O years, Western Australia's ornamental plant industry has experienced significant growth in value. The industry has expanded and adopted new technologies, but some enterprises have closed There have also been major changes reflecting the economic climate and conservation pressures.

The ornamental plant industry in this State is valued at more than $70 million annually. It encompasses three areas: nursery production, exotic cutflower production, and native cutllower production. The native cutflower industry is by far the largest growth sector.


Controlling Wind Erosion In Field Pea Stubbles, Jeff Russell Jan 1993

Controlling Wind Erosion In Field Pea Stubbles, Jeff Russell

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

The area sown to field peas in Western Australia's eastern wheatbelt has increased from 4000 ha in 1985 to about 35, 000 ha in 1992.

While field peas can be grown on soil types not suited to lupins, their stubble is highly fragile and prone to wind erosion, even at low grazing pressure. This is one reason why some farmers are hesitant to grow field peas.

Haroest losses of field peas can also be high; levels of JOO to 200 kg/ha of seed on the ground are not uncommon. For this reason farmers believe the stubbles should be grazed.

Farmers …


Center For Sustainable Agricultural Systems Newsletter, January/February 1993 Jan 1993

Center For Sustainable Agricultural Systems Newsletter, January/February 1993

Center for Sustainable Agricultural Systems: Newsletter (1993–2000)

Defining Production Systems in Nebraska

Nebraska Environmental Trust Fund

Sustainable Ag Grants for Producers

National Sustainable Ag Coordinating Council

Federal Conservation Policy Is Changing

FAO Examines Education Programs on Environmental Sustainability

Research on Reducing Environmental Impacts of Livestock

In the Seminar Spotlight

Electronic Communication Is In


Honey Production In Western Australia, Rob Manning Jan 1993

Honey Production In Western Australia, Rob Manning

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

the first ever survey of the potential production and value of apiary products from the south-west of Western Australia has shown beekeepers are collecting only 10 per cent of the potential honey crop.

The biggeest losses in honey production are caused by the enviroment, such as protracted drought, and extreme temperatures, heavy rain and cyclones during flowering. Fire, apiary sites leased but not used, and logging of forests also reduce the availability of apiary sites for honey production.


Searching Out The Headwaters: Change And Rediscovery In Western Water Policy, Sarah F. Bates, David H. Getches, Lawrence J. Macdonnell, Charles F. Wilkinson Jan 1993

Searching Out The Headwaters: Change And Rediscovery In Western Water Policy, Sarah F. Bates, David H. Getches, Lawrence J. Macdonnell, Charles F. Wilkinson

Books, Reports, and Studies

This digital resource contains only an abstract, cover image and table of contents information from the published book.

Print copy of book is available in the University of Colorado’s Wise Law Library: http://lawpac.colorado.edu/record=b139018~S0

Contents: The West's Gordian Knot -- Water in a changing West -- Voices -- The West today -- River basin stories -- Losing sight of the headwaters -- The journey to rediscovery -- Change and rediscovery in western water -- History need not repeat itself -- Appendix : The language of water


Ground Water Flow And Water Resources Investigation Of The Auburn, Summers And Shakertown Springs Karst Ground Water Basins, Logan And Simpson Counties, Kentucky, William Howcroft Dec 1992

Ground Water Flow And Water Resources Investigation Of The Auburn, Summers And Shakertown Springs Karst Ground Water Basins, Logan And Simpson Counties, Kentucky, William Howcroft

Masters Theses & Specialist Projects

The City of Auburn is faced with a number of problems relating to its dependency on two karst springs, Auburn and Summers Springs, to meet its water requirements. Besides being extremely vulnerable to contamination, the springs often discharge and insufficient volume of water needed for public consumption and dilution of the City’s treated wastewater. Thus the City wishes to find an additional source of water and views nearby Shakertown Spring as a possibility. The study has three main objectives: 1) delineation of the Auburn, Summers, and Shakertown Springs ground water basins, 2) determination of the volume of available water at …


Bill #92-09-F - Contractual Agreement For Adopt-A-Spot Program, Wku Student Government Association Oct 1992

Bill #92-09-F - Contractual Agreement For Adopt-A-Spot Program, Wku Student Government Association

Student Government Association

Bill regarding Adopt-a-Spot litter program on Western Kentucky University campus.


The Impact Of A Water-Imposed Interruption Of Growth In The Las Vegas Region, William T. White, Thomas M. Carroll, R. Keith Schwer Aug 1992

The Impact Of A Water-Imposed Interruption Of Growth In The Las Vegas Region, William T. White, Thomas M. Carroll, R. Keith Schwer

Publications (WR)

This study is prompted by the expectation that water supplies for the Las Vegas Valley, both those used currently and those additional quantities available from existing sources, cannot sustain significant further economic growth of the region beyond the year 2006.

There are five parts to this study. Part I uses a regional econometric (REMI) model to project the growth of the Las Vegas region to natural maturity, essentially unconstrained by an overriding water shortage.

Part II is a reinforcing cross-section analysis of metropolitan areas in the United States to learn the most common natural growth patterns and those that have …


Bill #92-12-S - Construction Of Recycling Center Wall, Wku Student Government Association Mar 1992

Bill #92-12-S - Construction Of Recycling Center Wall, Wku Student Government Association

Student Government Association

Bill to build a wall to enclose the recycling center.


Bill #92-05-S - Recycling Drop-Off Center, Wku Student Government Association Mar 1992

Bill #92-05-S - Recycling Drop-Off Center, Wku Student Government Association

Student Government Association

Bill regarding the creation of a recycling center.


An Inventory And Condition Survey Of The Roebourne Plains And Surrounds, Western Australia, A L. Payne, Peter J. Tille Mar 1992

An Inventory And Condition Survey Of The Roebourne Plains And Surrounds, Western Australia, A L. Payne, Peter J. Tille

Technical Bulletins

The survey area is located in the North-West Division of Western Australis. It covers part of the Dampier-Barrow Island, Pyramid, Roebourne and Ysrraloola 1: 250,000 scale map sheets and all of the Karatha, Mallina, Pyrsmid, Sherlock, Mt Welcome and Warambie pastoral leases.


Contributions To Sustainable Development From The Legal Community: Opportunity For International Cooperation, Rodrigo Barahona, University Of Colorado Boulder. Natural Resources Law Center Jan 1992

Contributions To Sustainable Development From The Legal Community: Opportunity For International Cooperation, Rodrigo Barahona, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

9 p. ; 28 cm


The Place Of Farm Animals In Humane Sustainable Agriculture, M. W. Fox Jan 1992

The Place Of Farm Animals In Humane Sustainable Agriculture, M. W. Fox

eBooks

It is not yet widely recognized that the livestock industry has become a major threat to the world's economy, the environment, consumer health, and the food security of nations and generations to come. Farm animals do have a place in ecologically sound agriculture, but, as will be shown, they have not been properly integrated either in the United States or in other developed and less-developed nations of the world.


Scarce Resources, Perception Of Risk, And Collective Action, Nicholas S. Hopkins Jan 1992

Scarce Resources, Perception Of Risk, And Collective Action, Nicholas S. Hopkins

Faculty Book Chapters

[abstract not provided]


Towards Sustainable Desert Development For Egypt, Adli Bishay Jan 1992

Towards Sustainable Desert Development For Egypt, Adli Bishay

Faculty Book Chapters

[abstract not provided]


The Role Of Trees In Sustainable Agriculture : A National Conference : Reprints Of Western Australian Papers, P R. Scott, Nicholas J. Schofield, Mohammed A. Ban, David T. Bell, Wendy J. Boddington, Richard J. George, David Bicknell, J Patrick Piggott, Richard Moore Jan 1992

The Role Of Trees In Sustainable Agriculture : A National Conference : Reprints Of Western Australian Papers, P R. Scott, Nicholas J. Schofield, Mohammed A. Ban, David T. Bell, Wendy J. Boddington, Richard J. George, David Bicknell, J Patrick Piggott, Richard Moore

Resource management technical reports

  • The role of trees in land and stream salinity control in Western Australia (Conference paper: N.J. Schofield, M.A. Ban, D.T. Bell, W.J. Boddington, R.J. George, N.E. Pettit)
  • The role of trees in providing shelter and controlling erosion in the dry temperate and semi-arid southern agricultural areas of Western Australia (Conference paper: D. Bicknell)
  • Management of native woody vegetation on farms in Western Australia (Conference paper: J.P. Pigott)
  • Producing timber from trees - options for farmers in Western Australia (Conference paper: R. Moore)
  • Trees and shrubs as sources of fodder in Western Australia (Conference paper: E.C. Lefroy)
  • Minor forest products in …


Results Of Stubble Research In Western Australia, Michael Perry, Ron Jarvis, Mel Mason, David Tennant Jan 1992

Results Of Stubble Research In Western Australia, Michael Perry, Ron Jarvis, Mel Mason, David Tennant

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

Few farmers would question the desirability of retaining stubbles, both for control of erosion by wind and water, and to return organic matter to the soil. While the present debate is focused on the short term management of stubbles, longer term effects also need to be considered.

The Department of Agriculture has several long-running trials intended to measure long term effects.


Stubble : Friend And Foe, Department Of Agriculture And Food, Western Australia Jan 1992

Stubble : Friend And Foe, Department Of Agriculture And Food, Western Australia

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

Several articles in this issue of the Journal of Agriculture discuss some of the important issues of stubble management. The articles are condensed from some of the papers presented at a stubble workshop at Geraldton in 1991.


Taking The Emu To Market, Paul Frapple, Ruth Hagan Jan 1992

Taking The Emu To Market, Paul Frapple, Ruth Hagan

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

Licensed, commercial emu farming in Western Australia is now five years old.

This year, 13,500 birds will be processed for their meat, skin and oil. Production has exceeded demand at prices which the industry considers fair because the industry is still developing marketd for these producys.

Without secure, long term markets, over-production will worsen as the turn-off in this State increases and emus become available from other Australian states and overseas.

The Department of Agriculture is assisting the industry to develop a viable industry.


Managing Brome Grass In The Wheat:Lupin Rotation, Aik Hock Cheam, Gurget Gil, Christine Zaicou Jan 1992

Managing Brome Grass In The Wheat:Lupin Rotation, Aik Hock Cheam, Gurget Gil, Christine Zaicou

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

Some farmers and scientists are questioning the sustainability of the cereal:lupin rotation in the Western Australian wheatbelt.

Being a 'tight' rotation, its continuation is constantly under threat by disease, especially lupin root rots caused by Pleiochaeta (the brown spot organism) and Rhizoctonia fungi. To control disease, some farmers have lengthened the rotation to three years, such as wheat:wheat:lupins or wheat:barley:lupins. The longer cereal phase also helps to stabilise soil against wind erosion. However, such rotations can lead to a rapid buildup of brome grass during the two consecutive years of cereals. The implications of these rotations on the severity of …


Red Kangaroos Can Set Back Range Regeneration, Andrew Mclaughlin Jan 1992

Red Kangaroos Can Set Back Range Regeneration, Andrew Mclaughlin

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

After years of severe drought, stocking rates in Western Australia s arid rangelands have been kept low since the 1970s to allow native pastures to regenerate. As well, extensive re-seeding programs have started and sheep and cattle grazing on these areas has been restricted or eliminated. However, pasture regeneration in the rangelands can only succeed when grazing by all animals - sheep, cattle, kangaroos, goo.ts, camels, brumbies and donkeys - is controlled Many more red kangaroos roam throughout Western Australia's pastoral areas today than 20 years ago. The installation of windmills and troughs to water domestic livestock has allowed kangaroo …