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Articles 3751 - 3780 of 4004

Full-Text Articles in Forest Management

Survey Of The Damage Caused To Trees By Goats, Steve Gherardi, Dick Mills, Tim Johnson Jan 1991

Survey Of The Damage Caused To Trees By Goats, Steve Gherardi, Dick Mills, Tim Johnson

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

The damage that goats can cause to trees is one of the major problems associated with their farming in the agricultural areas of Australia. It is also considered one of the main hindrances to the development of the goat industry. The Department of Agriculture s Goat Industry Development Unit surveyed mohair and cashmere producers to determine the prevalence of tree damage and its extent and severity; why producers believed goats damaged trees; and how producers minimised or prevented this damage.


Reclaiming Sandplain Seeps Planting Trees, Richard George Jan 1991

Reclaiming Sandplain Seeps Planting Trees, Richard George

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

Sandplain seeps affect large areas of agricultural land in Western Australia's eastern and northern wheatbelt and in the Great Southern. These seeps are estimated to account for about 10 per cent of dryland salinity in the agricultural area. Research and field observations show that seeps may be cheaply and quickly reclaimed using various types of drains or small blocks of trees (George 1990). This article discusses results of reclamation methods associated with tree planting on sandplain seeps in the eastern wheatbelt.


Planting Trees To Control Salinity, Nick Schofield, Phil Scott Jan 1991

Planting Trees To Control Salinity, Nick Schofield, Phil Scott

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

Dense tree plantings covering at least 30 per cent of cleared land can lower groundwater levels by two metres or more in 10 years from the time of planting. This sizeable drop can be expected at sites receiving 700 to 800 mm of rain a year. Research by the Water Authority of Western Australia shows the most promising strategy when using trees is to put dense plantings on the discharge zone and on lower to midslopes. This strategy is successful where groundwaters contain less than 30,000 milligrams per litre total soluble salts (TSS).

This article discusses research in the 450 …


Animal Production From Tagasaste Growing In Deep Sands In A 450 Mm Winter Rainfall Zone, Chris Oldham, Greg Allen, Peter Moore, Bruce Mattinson Jan 1991

Animal Production From Tagasaste Growing In Deep Sands In A 450 Mm Winter Rainfall Zone, Chris Oldham, Greg Allen, Peter Moore, Bruce Mattinson

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

In 1985, Martindale Pty Ltd, Sir James McCusker's family company, signed a unique research contract with Professor David Lindsay of the University of Western Australia. The aim of the Martindale Research Project was to study ways of increasing farm productivity in the sheep-wheat zone of south-western Australia. A primary focus was the high cost of grain or hay used to fill the autumn feed gap in grazing systems.

However, it was not clear how or if tagasaste might be economically used to replace the grain and/or hay traditionally fed by hand to sheep and cattle in autumn.


Windbreaks Prove Their Worth, Tim Negus Jan 1991

Windbreaks Prove Their Worth, Tim Negus

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

Strong winds in the south-west of Western Australia in April 1991 carted tonnes of top soil from stubbles, over-grazed pastures, and recently prepared cropping land. However, where there were windbreaks, downwind protection into the paddock was up to 10 to 20 times the height of the windbreaks. On May 1, 1991, the author inspected farm land for damage from Narrogin to the Dongolocking area, to Harrismith, up the rabbit-proof fence to West Corrigin and back to Narrogin via Kweda. He found the extent of soil erosion varied, and that some tree species planted in windbreaks gave better protection than others


Trees And Livestock : A Productive Co-Existence, Richard Moore Jan 1991

Trees And Livestock : A Productive Co-Existence, Richard Moore

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

Trees, as part of farming can help to combat land degradation problems and produce a good economic return from timber at the same time. For example, there is now clear evidence that planting trees can help combat salinity by lowering water-table levels. Trees can also substantially improve overall farm productivity by providing shelter for pastures and livestock. The challenge is to find practical and economical methods of integrating trees and farming. A combination of widely-spaced trees and livestock is one promising method. This article describes the benefits of this type of agroforestry to farmers, suitable locations and how to practice …


Whole-Farm Planning : Success At Wilgi Creek, Kevin Shanhun Jan 1991

Whole-Farm Planning : Success At Wilgi Creek, Kevin Shanhun

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

Ian and Bev Lynch own Wilgi Creek, a 376 ha mixed farming property at West Mount Barker in the 700 mm rainfall zone. In 1983, they started a whole-farm plan to overcome the problems of declining production caused by waterlogging (their biggest problem), salinity and deterioration of the remnant native vegetation. Today, their property is an example of a successful, wholefarm land conservation plan based on agroforestry, timber production, water harvesting and improved pastures.


Using Trees To Reclaim Land Lost To Saline Seeps, Department Of Agriculture And Food, Western Australia, Arthur Wright Jan 1991

Using Trees To Reclaim Land Lost To Saline Seeps, Department Of Agriculture And Food, Western Australia, Arthur Wright

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

The National Soil Conservation Program (NSCP) has tapped the vigorous community support for landcare initiatives through its demonstration sites for reclaiming sandplain seeps in the Western Australian wheatbelt. The demonstrations, which use tree plantations to reclaim seeps, began in 1989. The sites are being keenly monitored by participating farmers and members of land conservation districts (LCDs).


The Greening Of Australia, Martine Scheltema Jan 1991

The Greening Of Australia, Martine Scheltema

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

Many urban Australians have little understanding of the problems of land degradation because it's an extremely slow process that doesn 't directly influence their day-to-day lives. Understandably, they would have trouble relating to sub-soil compaction, waterlogging, increased soil acidity and salinity. They also have trouble comprehending why fencing according to soil type is an important management tool for farmers, or what role contour banks, drainage systems, the addition of gypsum and planting trees have in reversing land degradation. But given that tree loss "has been at the core of almost every aspect of land degradation in Australia ", and that …


Tree Crops For Profit And Land Improvement, John Bartle Jan 1991

Tree Crops For Profit And Land Improvement, John Bartle

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

Western Australian agriculture is deficient in good perennial species. The traditional segregation of agriculture and forestry has diverted attention from commercial wood producing trees as a potential perennial crop. Recently, scientists have made rapid progress in developing tree cropping systems suitable for extensive use in the wetter (more than 600 mm average annual rainfall) areas of the lower south-west. There is potential for a major industry based on fast-growing eucalypts for pulpwood. The foundations for this industry developed from work on agroforestry, forestry sharefarming and salinity control.


Wildlife Corridors In The Wheatbelt, Richard Hobbs, Denis Saunders Jan 1991

Wildlife Corridors In The Wheatbelt, Richard Hobbs, Denis Saunders

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

Native vegetation in the Western Australian wheatbelt now persists mostly in small areas that remained uncleared for various reasons. (See 'Remnant vegetation on farms is a valuable resource' on page 43.) On their own, most of these remnant areas are difficult to manage, and too small to retain viable populations of many of the birds and other animals found in the wheatbelt. These patches of vegetation can be linked by wildlife corridors, which may increase the ability of the wildlife to move about and persist in the area


Revegetating Salt-Affected Land With Shrubs, Ed Barrett-Lennard, Fionnuala Frost, Steve Vlahos, Norm Richards Jan 1991

Revegetating Salt-Affected Land With Shrubs, Ed Barrett-Lennard, Fionnuala Frost, Steve Vlahos, Norm Richards

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

The establishment of salt-tolerant shrubs such as saltbush and bluebush on salt-affected land reduces the risk of soil erosion, and can also fit into farm programmes as a profitable enterprise. Salt-tolerant shrubs can be used as forage for sheep in summer and autumn, when the availability of annual pastures is low or annual pastures are just beginning to emerge. This article describes three methods for establishing shrubs on salt-affected land and what affects shrub establishment.


Bulletin No 4176 - Agroforestry With Widely Spaced Pine Trees, Richard Moore, Peter Jenkins, Geoff Anderson, Phil Scott Jan 1991

Bulletin No 4176 - Agroforestry With Widely Spaced Pine Trees, Richard Moore, Peter Jenkins, Geoff Anderson, Phil Scott

Bulletins 4000 -

Combining a softwood timber crop with other forms of agriculture on the same land can make better use of available space, soil and water, and lead to higher productivity from farms.

This Bulletin outlines the potential benefits of, and a programme for, the growing of pine on farmland in Western Australia in conjunction with either pasture or another crop. The agroforestry system described has been well researched in Westem Australia.

The main objectives of agroforestry are to produce high quality timber while maintaining adequate pasture for either grazing or fodder cropping until the timber is harvested.


Malaysian Deforestation Proceeds Apace, Paul Faulstich Sep 1990

Malaysian Deforestation Proceeds Apace, Paul Faulstich

Pitzer Faculty Publications and Research

A hunger fast, dubbed Fast Action, was staged in front of the Japanese Consulate General in Honolulu on July 20 to protest the destruction of the most ancient and biologically diverse ecosystem on Earth. Organized by Hawai'i Earth First! and the O'ahu Rainforest Action Group, Fast Action was designed to alert people to the destruction of tropical rainforests in Sarawak, Malaysia. Protesters demanded on immediate moratorium on the cutting of rainforests in,which the Penan and other-native peoples live.


Bulletin No 4174 - Tree Planting On Farms In High Rainfall Areas, Ken Angell Jul 1990

Bulletin No 4174 - Tree Planting On Farms In High Rainfall Areas, Ken Angell

Bulletins 4000 -

Many of the techniques described in this Bulletin are applicable to broadacre farms. However, they are specifically directed to small rural properties in the high rainfall areas.

Trees can usually serve more than one purpose on small rural properties. They can be used as ornamentals, to provide shelter and shade, for erosion control, as a wildlife habitat, or for waterlogging and salinity control.


Agroforestry : Integration Of Trees Into The Agricultural Landscape, P R. Scott Feb 1990

Agroforestry : Integration Of Trees Into The Agricultural Landscape, P R. Scott

Resource management technical reports

No abstract provided.


"What's Past Is Prologue": Our Legacy - Our Future, 1990 National Interpreters Workshop, David Kulhavy, Michael Legg Jan 1990

"What's Past Is Prologue": Our Legacy - Our Future, 1990 National Interpreters Workshop, David Kulhavy, Michael Legg

eBooks

"... the topics of the papers presented at the 1990 National Interpreters Workshop reflect a dynamic NAI membership. While firmly rooted to principles which have been developed in over a millennium, presenters show a healthy use of past knowledge as prologue to an active, vital present ..."


Research Report No. 26, Hyperstand 2.0: Estimating Yield Of East Texas Pine Plantations (Update To Hyperstand 1.0), A. Gordon Holley, Eric L. Taylor Jan 1990

Research Report No. 26, Hyperstand 2.0: Estimating Yield Of East Texas Pine Plantations (Update To Hyperstand 1.0), A. Gordon Holley, Eric L. Taylor

Informal Project Reports

An update to a computer program for estimating per acre yield for lob lolly .pine ( Pinus taeda L. ) and slash pine ( Pinus elliotti Engelm. ) plantations in East Texas is presented. The program, HYPERSTAND 2.0, was written utilizing HYPERCARD and is designed to run on MACINTOSH personal computers. In order to run, HYPERSTAND 2.0 requires the application program HYPERCARD 1.2.2 and HYPERCARD HOME STACK.


Research Report No. 25, Frmps: A Forest Resource Management Planning Simulator For East Texas Pine Plantations, Tom Hartz Jan 1990

Research Report No. 25, Frmps: A Forest Resource Management Planning Simulator For East Texas Pine Plantations, Tom Hartz

Informal Project Reports

FRMPS is designed to provide a landowner an opportunity to simulate the establishing, growing and harvesting of lob lolly pine ( Pinus taeda L.) and slash pine ( Plnus elltotti Engelm. ) plantations in East Texas. Also included in the model is a procedure to s1mulate the growing of an existing non-plantation with a future conversion to ptne plantet1on. The effect of different cash flows from various activities and operations is analyzed using net present value as the decision-making criterion. FRMPS runs on a Macintosh SE or 11 personal computer and requires STELLA FOR BUSINESS v. 2. 1 software.


Maine's Endangered And Threatened Plants, Maine State Planning Office Jan 1990

Maine's Endangered And Threatened Plants, Maine State Planning Office

Maine Collection

Maine's Endangered and Threatened Plants

Executive Department, Maine State Planning Office, Critical Areas Program, 1990.


Vegetation Of Saratoga Landing Blackland Prairie, Thomas L. Foti Jan 1990

Vegetation Of Saratoga Landing Blackland Prairie, Thomas L. Foti

Journal of the Arkansas Academy of Science

Saratoga Landing Blackland Prairie is a 75-ha site owned by the U.S. Army Corps of Engineers and managed cooperatively with the Arkansas Natural Heritage Commission to protect its blackland prairie community and rare plant species. The site is a complex of prairies and forests, as interpreted from aerial photos and maps. It was substantially prairie at the time of settlement, and forest cover did not increase greatly until after 1951, apparently due to effective suppression of wildfires after that time. Plot sampling characterizes an individual prairie on the site as being dominated by a herbaceous canopy, but with a substantial …


Spruce Budworm In Maine: The End Of The Outbreak: Biological Conditions In 1986, 1987, And 1988, And A Look At The Future, Henry Trial Jr. Oct 1989

Spruce Budworm In Maine: The End Of The Outbreak: Biological Conditions In 1986, 1987, And 1988, And A Look At The Future, Henry Trial Jr.

Maine Collection

Spruce Budworm in Maine: The End of the Outbreak: Biological Conditions in 1986, 1987, and 1988, and a Look at the Future

by Henry Trial, Jr., Insect and Disease Management Division

Technical Report No. 28

Maine Forest Service, Dept. of Conservation, Augusta, Maine, October 1989.

Contents: Introduction / Biological Conditions in 1986, 1987, and 1988 / Control Activities / Forest Conditions-1986 to 1988 and a Look at the Future / Spray Operations and Forecast of Conditions in Quebec and New Brunswick, 1986-1988 / The Future of Budworm in the Region and in Maine / List of Figures / List of …


Mapping Regional Forest Evapotranspiration And Photosynthesis By Coupling Satellite Data With Ecosystem Simulation, Steven W. Running, Ramakrishna R. Nemani, David L. Peterson, Larry E. Band, Donald F. Potts, Lars E. Pierce, Michael A. Spanner Aug 1989

Mapping Regional Forest Evapotranspiration And Photosynthesis By Coupling Satellite Data With Ecosystem Simulation, Steven W. Running, Ramakrishna R. Nemani, David L. Peterson, Larry E. Band, Donald F. Potts, Lars E. Pierce, Michael A. Spanner

Forest Management Faculty Publications

Mapping Regional Forest Evapotranspiration and Photosynthesis by Coupling Satellite Data With Ecosystem Simulation


Research Report No. 24, Hyperstand 1.0: A Hypercard Computer Program For Estimating Yield Of East Texas Pine Plantations, Eric L. Taylor, A. Gordon Holley Feb 1989

Research Report No. 24, Hyperstand 1.0: A Hypercard Computer Program For Estimating Yield Of East Texas Pine Plantations, Eric L. Taylor, A. Gordon Holley

Informal Project Reports

A computer program for estimating per ~e yield for lob lolly and slash pine plantations in East Texas is presented. The program, HYPERSTAND 1.0, is written in HYPERCA.RD and 1s designed to run on MACINTOSH computers. In order to run, HYPERSTAND requires the application program HYPERCA.RD l .2.


Research Report No. 23, Environmental Factors Influencing Diameter Development Within East Texas Loblolly Pine Plantations, Pilis Malim Jan 1989

Research Report No. 23, Environmental Factors Influencing Diameter Development Within East Texas Loblolly Pine Plantations, Pilis Malim

Informal Project Reports

An assessment of the role of various environmental fa::tors on the development of four measures of diameter--minimum, arithmetic mean, quadratic mean and maximum- -was conducted for lob lolly pine ( Pinus taeda L.) plantations in East Texas. Of 12 environmental f~tors analyzed, only slope percent, two measures of non- planted vegetation Md surface soil pH significantly influenced diameter development.


Arkansas' Incendiary Wildfire Record: 1983-1987, Richard A. Kluender, L. C. Thompson, R. J. Mcfarland, D. M. Steigerwald Jan 1989

Arkansas' Incendiary Wildfire Record: 1983-1987, Richard A. Kluender, L. C. Thompson, R. J. Mcfarland, D. M. Steigerwald

Journal of the Arkansas Academy of Science

All wildfire reports from lands protected by the Arkansas Forestry Commission for the calendar years 1983 through 1987 were studied. The number of wildfires steadily increased from 2,185 in 1983 to 4,150 in 1987, burning a total of 27,146 hectares in 1987. Incendiarism on forested lands in 1987 comprised 77% of the total fires and 84% of the area burned. Incendiarism was responsible for 40% of all fires and 60% of the area burned in 1983, but increased to 54% of all fires and 69% of the area burned in 1987. In 1987, 80% of all incendiary fires on industry …


Trees In The Peel-Harvey Catchment, C S. Peek, Richard Silberstein Jan 1989

Trees In The Peel-Harvey Catchment, C S. Peek, Richard Silberstein

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

The peel-Harvey catchment has been the focus for an intensive research and extension programme to reduce phosphorous run-off flowing into the Peel Inlet and Harvey Estuary, while maintaining agricultural productivity.

One of the proposed management strategies is to plant large areas of trees on the catchment's leaching sands. Farmers would be encouraged to take this option if growing trees was at least equal, in financial return, to the present agricultural land uses.

Preliminary data indicate that growing Eucalyptus globulas (Tasmanian bluegum) for woodchipping may be at least as profitable as agriculture. Tree plantations also have the added potential to reduce …


Research Report No. 22, A Computer Program In Basic For Estimating Yield Of East Texas Pine Plantations, Terry L. Hackett, Tom M. Hartz Oct 1988

Research Report No. 22, A Computer Program In Basic For Estimating Yield Of East Texas Pine Plantations, Terry L. Hackett, Tom M. Hartz

Informal Project Reports

A computer program for estimating per acre yield for lob lolly and slash pine plantations in East Texas ls presented. The program, DIADISD.BAS, ls written in BASIC and is designed to run on IBM (and compatible) PC computers. An option in DIADISD.BAS allows the user to impose mortality rates on the pine plantations for both fusiform rust infected tree stems Md disease-free stems.


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.