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- Western Australia (19)
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- Saline soils (4)
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- Journal of the Arkansas Academy of Science (38)
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- Masyarakat, Jurnal Sosiologi (2)
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- Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences (1)
- Eleutheria: John W. Rawlings School of Divinity Academic Journal (1)
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- Florida A & M University Law Review (1)
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- Journal of Public Affairs and Development (1)
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Articles 121 - 150 of 153
Full-Text Articles in Life Sciences
Trees And Livestock : A Productive Co-Existence, Richard Moore
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 …
Tree Crops For Profit And Land Improvement, John Bartle
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
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
Whole-Farm Planning : Success At Wilgi Creek, Kevin Shanhun
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.
Revegetating Salt-Affected Land With Shrubs, Ed Barrett-Lennard, Fionnuala Frost, Steve Vlahos, Norm Richards
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.
Protecting Biological Diversity: A Major Challenge For Minnesota Forestry In The 1990s, David C. Zumeta
Protecting Biological Diversity: A Major Challenge For Minnesota Forestry In The 1990s, David C. Zumeta
Journal of the Minnesota Academy of Science
One of the most significant challenges to Minnesota forestry in the 1990s will be responding to growing public concern about relationships between forestry in Minnesota and global and national environmental issues (e.g., protecting biological diversity, tropical deforestation). Influential citizens and public interest groups are asking penetrating questions about the effects of forest management and timber harvesting on biological diversity, and about parallels between tropical deforestation and timber harvesting in Minnesota.
This article examines some of the relationships between Minnesota forestry and biological diversity. It also describes what is being done, and what needs to be done, to protect biological diversity. …
Challenges For The North Maine Woods, Lloyd C. Irland
Challenges For The North Maine Woods, Lloyd C. Irland
Maine Policy Review
Lloyd Irland discusses the rapid changes in the value of Maine’s forests as perceived by the public, the threats to those values, the policy tools for managing those conflicts, and the ways of paying for forest benefits. He notes that regulation is destined to lay a larger role in the policy mix for these new forest values.
Reclaiming Sandplain Seeps Planting Trees, Richard George
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.
Animal Production From Tagasaste Growing In Deep Sands In A 450 Mm Winter Rainfall Zone, Chris Oldham, Greg Allen, Peter Moore, Bruce Mattinson
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.
Survey Of The Damage Caused To Trees By Goats, Steve Gherardi, Dick Mills, Tim Johnson
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.
Windbreaks Prove Their Worth, Tim Negus
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
Planting Trees To Control Salinity, Nick Schofield, Phil Scott
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 …
The Greening Of Australia, Martine Scheltema
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 …
Using Trees To Reclaim Land Lost To Saline Seeps, Department Of Agriculture And Food, Western Australia, Arthur Wright
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).
Vegetation Of Saratoga Landing Blackland Prairie, Thomas L. Foti
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 …
Arkansas' Incendiary Wildfire Record: 1983-1987, Richard A. Kluender, L. C. Thompson, R. J. Mcfarland, D. M. Steigerwald
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
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 …
Analysis Of Wildfire Occurrence In Southeastern Arkansas, 1984-1987, Richard A. Kluender, Lynne C. Thompson, G. W. Callahan
Analysis Of Wildfire Occurrence In Southeastern Arkansas, 1984-1987, Richard A. Kluender, Lynne C. Thompson, G. W. Callahan
Journal of the Arkansas Academy of Science
Wildfire statistics for Arkansas Forestry Commission District I in southeastern Arkansas were analyzed for the period 1 984 through 1987. A mean of 313 fires and 1103 hectares burned annually during the study period. Most (87%) of the land burned was forested. The greatest number (90%) of wildfires occurred when fire-danger was moderate to high. Most fires were started (90%) and detected (51%) by local residents. Arson was responsible for the majority of fires (68%) and hectares burned (65%). A disproportionately high number (43%) of the incendiary fires occurred in Ashley County. Mean fire size was smaller in this county. …
Arkansas' Timber Resource: Yesterday, Today, And Tomorrow, Richard A. Kluender, R. L. Willett
Arkansas' Timber Resource: Yesterday, Today, And Tomorrow, Richard A. Kluender, R. L. Willett
Journal of the Arkansas Academy of Science
Demand for forest products continues to rise. Arkansas provides about 4% of the U.S. total forest production and about 12% of the south central region production. Questions exist about the ability of current forest resources to completely meet anticipated future demand. In 1985, the U.S. Forest Service and the Arkansas Timber Study Committee began to analyze the existing forest base to determine whether future demand could be met from the current forest, or if not, what management changes were needed to help meet future demand. In 1985, Arkansas forests covered approximately 48% of the total land area of the state. …
Forestry On The Island Of Taiwan, Roc - The State Of The Art, James M. Guldin, Timothy T. Ku, R. Scott Beasley
Forestry On The Island Of Taiwan, Roc - The State Of The Art, James M. Guldin, Timothy T. Ku, R. Scott Beasley
Journal of the Arkansas Academy of Science
The forests of Taiwan vary from lush subtropical vegetation to subalpine coniferous associations. Topography is exceedingly rugged, and stands border on the verge of silvicultural inoperability. In the 1950s and 1960s, the wood products industry in the Republic of China was of paramount importance; the production of high-quality sawtimber from old-growth cypress (Cupressaceae) stands provided the financial capital that built one of the most prosperous national economies in the modern world. In the 1980s, forestry in Taiwan is a curious blend of old methods and new technologies, as modern silvicultural practices are used to reforest cutover cypress stands, to harvest …
Forest Data Base For Arkansas, Richard A. Kluender, E. Wesley Mccoy
Forest Data Base For Arkansas, Richard A. Kluender, E. Wesley Mccoy
Journal of the Arkansas Academy of Science
No abstract provided.
Percival P. Baxter: A Comment, Edward O. Schriver
Percival P. Baxter: A Comment, Edward O. Schriver
Maine History
This article analyzes Governor Baxter’s search over the years to find a rational understanding of the term “wilderness.”
Tree Establishment In The Wheatbelt, F Batini
Tree Establishment In The Wheatbelt, F Batini
Journal of the Department of Agriculture, Western Australia, Series 4
Although most of the Forests Department's activity has centred around the State Forests in the higher rainfall areas, the Department has, for many years, encouraged the planting and conservation of trees throughout the farming areas.
Chemical Control Of Eucalypts : Standing Timber, Stumps, Sucker Regrowth, Geoffrey A. Pearce
Chemical Control Of Eucalypts : Standing Timber, Stumps, Sucker Regrowth, Geoffrey A. Pearce
Journal of the Department of Agriculture, Western Australia, Series 4
The eucalypt is particularly well adapted to withstand long periods without rain. The characteristics which make this possible also make the tree difficult to kill, without removing the stump and part of the root system.
Planting And Care Of Trees In The Wheatbelt, F Batini
Planting And Care Of Trees In The Wheatbelt, F Batini
Journal of the Department of Agriculture, Western Australia, Series 4
THE climate of South Western Australia includes a long summer drought which subjects trees to considerable moisture stress.
Shade trees and shelter belts can be established successfully in the wheatbelt without hand watering, provided a suitable site and variety of tree is selected and a little time is spent in site preparation and care of the young tree.
This article, which is adapted from a Forests Department publication "Catalogue of Trees for growing under Western Australian conditions", sets out the best varieties of trees and establishment methods.
Stem Canker Disease Of Red Flowering Gums, W P. Cass Smith
Stem Canker Disease Of Red Flowering Gums, W P. Cass Smith
Journal of the Department of Agriculture, Western Australia, Series 4
Of the many native Eucalypts in Western Australia few are more attractive than the red flowering gum.
It flowers generally during the Christmas period and provides a beautiful display for several weeks, with blossoms of several colours including dark red, scarlet, orange and pink.
Control Of Eucalypt Regrowth, J G. Paterson
Control Of Eucalypt Regrowth, J G. Paterson
Journal of the Department of Agriculture, Western Australia, Series 4
EUCALYPT regrowth has presented a problem to farmers throughout the State for many years.
Some species are checked by heavy grazing although, in the main, this method is far from satisfactory.
Ammonium Nitrate Blasting Agent (Anfo) For Land Clearing, G A. Greaves
Ammonium Nitrate Blasting Agent (Anfo) For Land Clearing, G A. Greaves
Journal of the Department of Agriculture, Western Australia, Series 4
The introduction of "prilled" AN has revolutionised explosives practice and made possible safer and cheaper methods of blasting.
This article outlines the methods of handling and using ANFO blasting agent for land clearing.
Fodder Shrubs In The Murchison, D G. Wilcox
Fodder Shrubs In The Murchison, D G. Wilcox
Journal of the Department of Agriculture, Western Australia, Series 4
THE Murchison pastoral country is usually thought of as either having a perennial grass cover, as in the Wandarrie, or as Mulga country with trees and short grass.
It is easy to overlook the small shrubs which occur all over the Murchison in every type of situation, and can provide high quality feed for sheep.
Insect Pest Of Forests. 1. Wood Boring Beetles, Clee Francis Howard Jenkins
Insect Pest Of Forests. 1. Wood Boring Beetles, Clee Francis Howard Jenkins
Journal of the Department of Agriculture, Western Australia, Series 4
MANY different types of wood boring beetles are associated with timber and forest trees.
Some attack only dry seasoned wood, others prefer freshly felled logs, and others again choose the standing trees.