Forest Sciences Commons^™

Fate Of Eucalyptus Marginata Seed From Canopy-Store To Emergence In The Northern Jarrah Forests Of Western Australia: Research To Help Improve Regeneration Following Shelterwood Treatment, Jeffrey Cargill

Theses: Doctorates and Masters

The establishment of seedling regeneration is a key process in and indicator of ecologically sustainable forest management. The availability of seed and the creation of a suitable seedbed are recognised as important factors limiting seedling recruitment. A silvicultural method commonly used across northern and eastern jarrah forest blocks is shelterwood cutting. The primary objective of treating jarrah forest to shelterwood is to promote seedling regeneration in areas lacking sufficient advanced growth. Despite the widespread and progressive implementation of the shelterwood method, its application in jarrah forest has shown varying degrees of success.

This thesis sought to investigate and better understand …

Trees Working In Western Australia, Dave Berry

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

There is an air of inevirability about farm forestry - no-one disputs that planting trees is a sure route to curbing agriculture's serious land degredation problem. Dave Berry talks with some of the key players developing the industry.

Remnant Vegetation And Natural Resources Of The Blackwood River Catchment An Atlas, Shaun B. Grein

Agriculture reports

The Blackwood River is one of the longest rivers in the South-West of Western Australia, stretching 300 km from Moordjarrup to August. The catchment covers more than 28,000 square kilometres (2.8 million ha) from the Shire of Kent to the Shire of Augusta-Margaret River. It incorporates 17 shires, more than 30,000 people, 18 Land Conservation District Committees (LCDCs) and 143 sub-catchment groups. Shires within the Blackwood Catchment cover 4.12 million hectares, over half of the total area of the shires that fall within the catchment boundary.

Proceedings Of The Blackwood Catchment Remnant Vegetation Management Workshop, Department Of Agriculture And Food, Western Australia

Agriculture reports

The Remnant Vegetation workshop is the third in a series designed to help the Blackwood Catchment Coordinating Group develop its policies for the Blackwood River System. The next step is the development of draft policies and Codes of practice for Remnant Vegetaiton Management in the Blackwood River Catchment. Be assured that any policy adopted by the Blackwood Catchment Co-ordinating Group will have been developed with maximum community participation.

Merging Conservation With Production In Remnant Bush, Anne Morgan, Alison Fuss

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

Exports of cutflowers and foliage from Western Australia are now worth about $17 million a year. A third of this is picked from the bush, either on Crown Land or areas of remnant bush on private property. While the industry's future lies in cultivation, bush picking is likely to remain important for some years. This can provide both extra income for farmers and benefit the environment - as long as care is taken

Alley Farming : New Vision For Western Australian Farmland, Ted Lefroy, Phil Scott

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

Alley farming is a system where crops and pastures are grown in the alleys between rows of trees and shrubs. The concept is new to Western Australia but one that is likely to become more familiar over the next few years. The objective is to use trees and shrubs to decrease the environmental side effects of agriculture, such as erosion and salinity while increasing farm profit through the direct and indirect value of the trees.

This article describes some examples of alley farming in Western Australia and discusses the challenge of getting the right tree species and layout to maximise …

Bluegum Timberbelts For Profitable Landcare, Peter Eckersley

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

Revegetation with tasmanian bluegums in wide-spaced timberbelts appears to offer high returns, especially in areas where high winds cause crop and stock losses and where land can be saved from salinity and wwaterlogging.

In the South Coast and South-WestRegions, timberbelts will complement existing enterprises and so optimise overall land use. Graziers should be able to maintaine their stock numbers while creating an on-farm superannuation package.

The Department of Conservation and Land Management has been a major player in the development of bluegum timberbelts, but a few farmers are now adapting this concept to better suit their needs. Initial results are …

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.

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

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.

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

Protecting The Remnants, Glenis Ayling

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

Our native flora and fauna do best in their own environment, so one way of protecting them is to conserve and maintain areas of remnant vegetation throughout our farmlands. This is the aim of the Remnant Vegetation Protection Scheme in which the State Government helps private landholders to voluntarily fence off and manage areas of native vegetation on farms.

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 …

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.

Trees Of Western Australia, Charles Austin Gardner

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

It is not desirable to give locality names to plants unless their range is fully underwood.

Such names can be very misleading.

Thr following is an illistrated discussion of the identification of five Western Australian trees.

Trees Of Western Australia. No. 99. The Mottlecah (Eucalyptus Macrocarpa Hook.). No. 100. The Bald Island Marlock (Eucalyptus Lehmannii Preiss Ex Schau.), Charles Austin Gardner

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

This species, a shrub between six and 15 feet in height, is the largest-flowered of all the species of Eucalyptus.

The name is intended to indicate this fact, but unfortunately the Greek work makros means "long" and actually the fruit "karpos" is remarkably short in comparison to its diameter, being in fact the broadest fruit within the genus.

Plant Diseases : Armillaria Root Rot Of Fruit Trees, R F. Doepel

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

Armillaria root rot is a fungal disease capable of causing serious damage to both young and established orchards.

Although outbreaks are usually localised, eradication of the fungus and replacement of affected trees can involve the grower in considerable expense. For new plantings, thorough clearing of the land is recommended for preventing losses from this disease.

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.

Trees Of Western Australia. 91. The Powder Barked Wandoo (Eucalyptus Accedens - W.V. Fitzgerald). 92. The Dongara Mallee (Eucalyptus Dongarraenis - Maiden And Blakely). 93. The Messmate Or Stringbark (Eucalyptus Tetrodonta F. Muell). 94. The Sturt Creek Mallee (Eucalyptus Odontocarpa F. Muell), Charles Austin Gardner

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

THIS species was originally named by W. V. Fitzgerald from specimens which he obtained from near Pingelly in November, 1903.

The name accedens is from the Latin accedo—to approach or come near—and is here used in reference to the supposed close approach of the tree to the common wandoo (Eucalyptus redunca var. elata).

Trees Of Western Australia. 63. Yellow Tingle (E. Guifoylei, Maiden). 64. Weeping Gum (E. Sepulcralis, F. Muell.). 65. Kingsmill's Mallee (E. Kingsmillii Maiden Et Blakely). 66. Hopetoun Mallee (E. Leptocalyx, W.F. Blakely). 67. Capped Mallee (E. Pileata, W.F. Blakely). 68. Eucalyptus Carnabyi (Blakely And Steedman). 69. Tallerack (E. Tretragona (R.Br.) F. Muell.). 70. Eucalyptus Micranthera (F. Muell. Ex. Benth.), Charles Austin Gardner

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

THE yellow tingle is one of the large forest trees of the lower South-West, and although it possesses many good qualities, its limited range renders it of less importance than its associates—the jarrah and karri.