Forest Sciences Commons^™

A Model Of Coppice Biomass Recovery For Mallee-Form Eucalypts, Kim Brooksbank, Adrian Goodwin Mr

Journal articles

Planting mallee-form eucalypts amongst crops has the potential to remedy environmental degradation caused by land clearing in low rainfall regions, whilst also providing income through carbon-sequestration or periodic coppicing. Management options can be supported by models of biomass and coppice recovery, and this paper presents the first empirical coppice growth model for mallee eucalypts.

Uncoppiced and coppiced belt-planted Eucalyptus polybractea, E. loxophleba and E. kochii were harvested and roots excavated to provide estimates of shoot and root biomass for analysis and model development. Allometric models of shoot biomass were appropriate for both uncoppiced and coppiced trees, but models of …

Salinity Risk Mapping For Assessing Carbon Farming Initiative Proposals: Decision Support And Data Requirements, Paul Raper, Peter Gardiner

Resource management technical reports

The Clean Energy Legislation passed by the Australian Parliament on 8 November 2011 links the carbon price to the Carbon Farming Initiative (CFI). Under the Carbon Credits (Carbon Farming Initiative) Act 2011 (the Act), proponents need to consider regional natural resource management (NRM) plans to ensure that tree plantings for carbon bio-sequestration maximise environmental benefits and avoid unintended adverse effects on biodiversity, water and agricultural production systems.

Agricultural Greenhouse Gas Emissions, Meredith Fairbanks, David Bowran, Geraldine Pasqual

Bulletins 4000 -

Agriculture contributes 15.5 per cent of Australia’s emissions (Figure 1), largely due to methane, from ruminant livestock digestion, nitrous oxide from soils and carbon dioxide from fossil fuel use (Australian National Greenhouse Accounts 2011; ABARES 2011).

This bulletin identifies current ways to reduce greenhouse gas emissions from Australian agriculture.

Hydrological Impacts Of Integrated Oil Mallee Farming Systems, D L. Bennett, John Andrew Simons, Russell Speed

Resource management technical reports

This study reports on the results from investigations at four sites into the effect of commercial-scale oil mallee systems on localised groundwater systems over seven years. It also reports the results of the use of a numerical model to forecast potential longer term impacts.

Climate Change, Vulnerability And Adaptation For South-West Western Australia: Phase One Of Action 5.5, Western Australian Greenhouse Strategy, Luke Morgan, Jo Anne Molin, Ross George, Richard Mckellar, Janet Conte

Bulletins 4000 -

This report outlines preliminary findings about the impacts of climate changes that occurred during 1975 to 2005 on the South West’s people, its economy and natural ecosystems. The report focuses on vulnerability and adaptation, identifying useful pointers for future work, particularly in relation to how well the community, stakeholders and decision-makers understand climate change as an issue and a threat.

The Grazing Of Cattle In The Northern Pastoral Areas Of Western Australia : Best Management Practice Guidelines, Department Of Agriculture And Food, Western Australia

Land resources best practice series

The Land Administration Act 1997 requires a pastoralist to manage and work the land within a pastoral lease to its best advantage and use methods of best pastoral and environmental management practices to achieve sustainable land use. The Pastoral Lands Board will use these best management practices as a guideline.

Fire Management Guidelines For Kimberley Pastoral Rangelands : Best Management Practice Guidelines, Department Of Agriculture And Food, Western Australia

Land resources best practice series

Kimberley pastoralists operate in a highly fire-prone environment. Uncontrolled fires pose significant economic, safety, and environmental risks to pastoral enterprises. In contrast, the controlled use of fire can benefit land management, animal production and biodiversity conservation. For any given country type, the interactions of fire, grazing and weather have complex effects on both land condition and animal production. Although general guidelines on the use of fire are valuable, based as they are on a combination of experience and available research findings, they should best be regarded as providing a starting point. At the property level, an adaptive approach that incorporates …

Fire Management Guidelines For Southern Shrubland And Pilbara Pastoral Rangelands : Best Management Practice Guidelines, Department Of Agriculture And Food, Western Australia

Land resources best practice series

Fire is integral to many ecosystems in Western Australian rangelands. Controlled fire can reduce the risk of wild fire, benefit pasture productivity and contribute positively to biodiversity values. Uncontrolled fire is a threat to safety and the business viability of pastoral enterprises and threatens rangeland biodiversity and productivity.This document deals with property-scale management of pastoral leases. Many fire regime issues are more regional in character. These include community safety and health, the impact on regional economies, the societal and cultural values of landscape and the effects on tourism. Ecologically the high productivity, diversity and palatability of recently burnt vegetation is …

The Grazing Of Cattle In The Southern Pastoral Areas Of Western Australia, Department Of Agriculture And Food, Western Australia

Land resources best practice series

The Land Administration Act 1997 requires a pastoralist to manage and work the land within a pastoral lease to its best advantage and use methods of best pastoral and environmental management practice to achieve sustainable land use. The Pastoral Lands Board will use these best management practices as a guideline.

Economics Of Oil Mallees : Report, Allan Herbert

Agriculture reports

Economic assessment of the profitability of oil mallees for a range of sites in Western Australia where farmers might invest on their own land.

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.

The Physical And Hydrological Characteristics Of A South Coast Sandplain Site : East Howick Site Survey, Robert Anthony Sudmeyer

Resource management technical reports

This Technical Report documents the physical and hydrological characteristics of a farmland site on the Esperance Sandplain. The site was located on 'Belalie Farm East' 110 km east of the town of Esperance in the locality of Howick (AMG 488900, 6277500) The site was typical of the sandplain landsystem which covers 35% (0.72 million ha) of the Esperance Agricultural Region. The farm was cleared over a number of years beginning in the 1970's and an extensive network of windbreaks established.

Rex ' 96 : An Expert Guide To Revegetation, David Bicknell

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

Agriculture Western Australia has provided coordination and technical input to a powerful source of information on plants for Australian conditions. David Bicknell outlines some of its features and uses.

Farmers, local government, advisers and even gardeners often have trouble finding the right plant for the right place for a given purpose. Rather than spend a lot of time, money and effort looking through scattered sources of information, many people stick with a limited number of species year after year. This neglects plants that may be much better suited to the purpose, and also fails to develop Australia's huge range of …

Parrot Damage To Bluegum Tree Crops : A Review Of The Problem And Possible Solutions, P Ritson

Resource management technical reports

Damage to Bluegum (Eucalyptus globulus) tree crops by the Twenty-eight Parrot (Barnardius zonarius) is emerging problem which could threaten the viability of the infant Bluegum industry in south-western Australia. The parrots strip bark from the lead shoot of the Bluegums causing the shoots to break off. Consequently lateral shoots develop resulting in deformed (bent or multi-stem) trees unsuited to harvest and utilisation.Indications that the reason Twenty-eight Parrots strip bark from Bluegum is to obta behaviour' and hence the damage may also develop in areas where it is absent or uncommon now. Currently the zone of worst damage includes around 20% …

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 …

Managing Bushland On The Farm, Penny Hussey

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

Since the time of European settlement in Western Australia, the replacement of native vegetation with crops and pastures has led to problems for both agricultural production and nature conservation. The most obvious of these are hydrological changes leading to salinisation and waterlogging, and the extinction of some native plants and animals.

Protection of remaining remnants of native bushland, together with revegetation, is increasingly seen as important ways of achieving sustainable agriculture and maintaining our unique wildlife.

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.

The Role Of Trees In Sustainable Agriculture : A National Conference : Reprints Of Western Australian Papers, P R. Scott

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 …

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

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

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

Remnant Vegetation On Farms Is A Valuable Resource, Richard Hobbs, Ken Wallace

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

Retention of native vegetation on farms is important both from an ecological and an economic point of view. Productivity in the paddocks ultimately will depend on the retention and replacement of trees and shrubs in the landscape. Remnants of native vegetation can play their part by helping to ensure the long-term viability of the agricultural system, as well as greatly enhancing the quality of life for those living on the land.

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.

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

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.