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Department of Primary Industries and Regional Development, Western Australia

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Articles 901 - 930 of 2354

Full-Text Articles in Physical Sciences and Mathematics

Soils Of The Knox Creek Plain East Kimberley Western Australia And Northern Territory, C Grose, Noel Schoknecht Jan 1996

Soils Of The Knox Creek Plain East Kimberley Western Australia And Northern Territory, C Grose, Noel Schoknecht

Resource management technical reports

An assessment of the soils and landforms of approximately 12,000 ha in the Knox Creek Plain in Western Australia and the Northern Territory was conducted in May and June 1994. Seventeen map units were identified and their soils, landform and vegetation characteristics were described. Grey or brown cracking clays predominate on the plain, however variable red or brown soils on the coarser alluvium of remnant levees are common in the south and south-east.


Land Capability Assessment For The Wellington-Blackwood Survey, Peter J. Tille Jan 1996

Land Capability Assessment For The Wellington-Blackwood Survey, Peter J. Tille

Resource management technical reports

This report has been produced to provide more detail on the land capability assessments presented in the Wellington-Blackwood Land Resources Survey (Tille 1996). In that report, the land capability of each of the soil-landscape subsystems has been summarised with a brief description. Capability ratings are provided here for each of the map units (including subsystem phases) which appear on the two map sheets (Tille et al. 1996) accompanying the Wellington-Blackwood Land Resources Survey.


Soils Of The Weaber Plain, East Kimberley, Western Australia, J C. Dixon Jan 1996

Soils Of The Weaber Plain, East Kimberley, Western Australia, J C. Dixon

Resource management technical reports

The Weaber Plain, north-east of Kununurra, is one of three "black soil" plains in the Kimberley area of Western Australia. It comprises about 15,000 hectares of irrigable land, part of which is known as Stage 2 of the Ord River Irrigation Area (ORIA). The area was surveyed in 1977 following a similar survey of the nearby Keep River Plain and preceding a survey of the Ivanhoe Plain, which has since been developed commercially. Map units and soil series used in those reports have also been used for this rep ility in crop selection, preferring high water use crops.


An Assessment Of Airborne Electromagnetics For Hydrogeological Interpretation In The Wheatbelt, Western Australia, Peter De Broekert Jan 1996

An Assessment Of Airborne Electromagnetics For Hydrogeological Interpretation In The Wheatbelt, Western Australia, Peter De Broekert

Resource management technical reports

No abstract provided.


Wellington-Blackwood Land Resources Survey, Peter J. Tille, Georgina Wilson, National Landcare Program (Australia) Jan 1996

Wellington-Blackwood Land Resources Survey, Peter J. Tille, Georgina Wilson, National Landcare Program (Australia)

Land resources series

This report presents descriptions to accompany land resource maps of the Wellington- Blackwood district, east of Bunbury in the south-west of Western Australia. The maps cover an area of about 760,000 hectares and are presented as two map sheets at a scale of 1:100,000. Four different physiographic zones cover the survey area: • The Western Darling Range Zone occupies the major portion of the area and consists of a deeply dissected lateritic plateau overlying crystalline rocks. Three soil-landscape systems containing 24 subsystems have been identified and mapped within this zone. • The Eastern Darling Range Zone is in the south-east …


Degradation Of Remnant Vegetation, Richard George, Don Mcfarlane, Russell Speed Jan 1996

Degradation Of Remnant Vegetation, Richard George, Don Mcfarlane, Russell Speed

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

Remnant vegetation, wetlands and riverine systems on both private and public land throughout south-western Australia are being rapidly degraded by dryland salinity, inundation, silting, nutrient enrichment and weed invasion. Richard George, Don McFarlane and Russel Speed outline some of the reasons why this is happening and provide some case studies that highlight actions to protect these remnants.


Ribbons Of Blue, Martin Revell, Thelma Crook Jan 1996

Ribbons Of Blue, Martin Revell, Thelma Crook

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

Ribbons of Blue is a water quality awareness program that involves schools and community groups in monitering local water bodies.

The concept originated in the Environmental Policy Planning section of the Office of Premier and Cabinet, in 1989. Martin Revell and Thelma cook outline the scope of the program and highlight some major achievements.


Something Fishy Is Going On - Aquaculture, David Berry Jan 1996

Something Fishy Is Going On - Aquaculture, David Berry

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

Aquaculture id Australia's fastest growing primary industry. Product from fish farms is currently valued at $399 million, forecast to exceed $5oo million by 2000.

Whilst the figure pales into insignificance alongside world production (about $45 billion) it does represent a huge window of opportunity for prospective investors and for Australian primary producers who are keen to diversify.

David Berry reports on the prospects for yabbie and marron farming in Western Australia.


Soil Information Sheets For The Mount Beaumont, Mallee And Esperance Agricultural Areas, Department Of Agriculture And Food, Landcare Western Australia, Esperance Land Conservation District Committee, Mount Beaumont / Howick Catchment Group (W.A.) Jan 1996

Soil Information Sheets For The Mount Beaumont, Mallee And Esperance Agricultural Areas, Department Of Agriculture And Food, Landcare Western Australia, Esperance Land Conservation District Committee, Mount Beaumont / Howick Catchment Group (W.A.)

Agriculture reports

Each sheet summarises information on the soil's characteristic properties, and associated land use suitability and management. A photograph of a representative profile is provided for each soil. Technical terms are defined in soil sheet glossary. Information is presented under the following headings: soil series and groups, occurence, native vegetation, soil profile description, characteristic soil properties, soil classification and agricultural land use and management.


Soils Of The Mount Beaumont Area, G G. Scholz, Henry Smolinski Jan 1996

Soils Of The Mount Beaumont Area, G G. Scholz, Henry Smolinski

Land resources series

Mount Beaumont Mount Beaumont is approximately 100 km north-east of Esperance in the south-east of Western Australia. In 1982 an area of 35,000 ha of virgin Crown Land was released for agriculture (identified as Mount Beaumont Stage I) and later it was proposed to release a further 33,600 ha (Mount Beaumont Stage II). Following development of the first stage, doubts arose about the suitability of the soils for agriculture, so the Department of Agriculture (now Agriculture Western Australia) surveyed the soils of the Mount Beaumont Stage II area before further land release. The survey indicated severe limitations to production and …


No-Till Sowing Systems In North America With Relevance To Western Australia, K J. Bligh Nov 1995

No-Till Sowing Systems In North America With Relevance To Western Australia, K J. Bligh

Resource management technical reports

No abstract provided.


Processing Results Of Western Australian Wool, John Stanton A/Prof, Lindy Coss, Peter Metcalf Aug 1995

Processing Results Of Western Australian Wool, John Stanton A/Prof, Lindy Coss, Peter Metcalf

Resource management technical reports

Despite a perception by some that Western Australian wool 'processes poorly', this study found that the consignments processed:

1. into longer tops suited for worsted weaving

2. into longer than predicted tops

3. with the same consistency as other Australian consignments


Native Vegetation Handbook For The Shire Of Dumbleyung, Shaun B. Grein Jul 1995

Native Vegetation Handbook For The Shire Of Dumbleyung, Shaun B. Grein

Native vegetation handbook series

This booklet provides agricultural land managers with information relating to the natural resources of the Shire of Dumbleyung including the existing vegetation, drainage systems and soils. Some of the problems relating to the management of natural resources in the Shire of Dumbleyung and possible solutions to these problems are also discussed. By providing this information it is hoped this booklet will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.


Distribution And Ecological Significance Of On-Farm Bush Remnants In The Southern Wheatbelt Region Of Western Australia - Phase Ii - Save The Bush Project, E A. Griffin Jun 1995

Distribution And Ecological Significance Of On-Farm Bush Remnants In The Southern Wheatbelt Region Of Western Australia - Phase Ii - Save The Bush Project, E A. Griffin

All other publications

This is the second phase of the Southern Wheatbelt Region Remnant Vegetation project aimed at surveying pieces of bushland in the 'Great Southern' of Western Australia. The first phase was completed during 1991-1992 and covered 11 shires

The aims of this survey were to document what is left (as on-farm remnant bush areas), so that the information is a available for use by the wider farming community (see also Mollermans 1992a, b).' In addition, native vegetation was defined as "endemic floral ... communities which have not been planted and which are in place as a result of natural processes" (ACF …


Distribution And Ecological Significance Of On-Farm Bush Remnants In The Southern Wheatbelt Region Of Western Australia - Phase Iii - Save The Bush Project Mz 06, E A. Griffin Jun 1995

Distribution And Ecological Significance Of On-Farm Bush Remnants In The Southern Wheatbelt Region Of Western Australia - Phase Iii - Save The Bush Project Mz 06, E A. Griffin

All other publications

This is the third phase of the southern wheatbelt region remnant vegetation aimed at surveying pieces of bushland in the ‘Great Southern’ of Western Australia.

The aims of this survey were to document what is left (as on-farm remnant bush areas), so that the information is a available for use by the wider farming community (see also Mollemans 1992a,b). In addition, native vegetation was defined as ‘endemic floral ... communities which have not been planted and which are in place as a result of natural processes’ (ACF vide Mollemans, 1992a,b). Furthermore, remnant vegetation is ‘that component of the native vegetation …


Environmental Considerations For The Proposed Goldfields Gas Pipeline Route Through Wanjarri Nature Reserve, H J. Pringle Apr 1995

Environmental Considerations For The Proposed Goldfields Gas Pipeline Route Through Wanjarri Nature Reserve, H J. Pringle

Resource management technical reports

Provides a broad description of the biophysical environment on Wanjarri Nature Reserve, discusses land management hazards, assesses and suggests an alternative alignment for the proposed Goldfields Gas Pipeline and briefly discusses environmental monitoring.From a purely environmental perspective the optimal alignment for the proposed Goldfields Gas Pipeline might be to the east of the mulga plains, in the spinifex for most of the way, and west of the sand ridge field near the track down to South Bore.


Soil Salinity Assessment Using The Em38: Field Operating Instructions And Data Interpretation, D L. Bennett, Richard George, Arjen Ryder Mar 1995

Soil Salinity Assessment Using The Em38: Field Operating Instructions And Data Interpretation, D L. Bennett, Richard George, Arjen Ryder

Agriculture reports

The Geonics EM38® is a portable instrument designed to take in situ field measurements of soil conductivity to about 1.5 m depth. If used correctly, the EM38 allows rapid, reliable estimates of soil salinity to be obtained from large areas without intensive soil sampling. The meter is very useful for delineating the extent and relative severity of saline areas. Although soil salinity has the dominant effect on the EM38 signal, other soil physical factors such as clay content, moisture content and temperature can affect the response. If the EM38 measurements are to be related to plant performance and used for …


Soil Salinity Assessment Using The Em38 Field Operating Instructions And Data Interpretation, Don Bennett, Richard George, Arjen Ryder Mar 1995

Soil Salinity Assessment Using The Em38 Field Operating Instructions And Data Interpretation, Don Bennett, Richard George, Arjen Ryder

Agriculture reports

The Geonics EM38 is a portable instrument designed to take in situ field measurements of soil conductivity to about 1.5 m depth. If used correctly, the EM38 allows rapid, reliable estimates of soil salinity to be obtained from large areas without intensive soil sampling. The meter is very useful for delineating the extent and relative severity of saline areas. Although soil salinity has the dominant effect on the EM38 signal, other soil physical factors such as clay content, moisture content and temperature can affect the response. If the EM38 measurements are to be related to plant performance and used for …


Value Of Saltbush Questioned, Brian Warren, Tess Casson, Ed Barrett-Lennard Mar 1995

Value Of Saltbush Questioned, Brian Warren, Tess Casson, Ed Barrett-Lennard

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

Over the last 20 years the Department of Agriculture has focused on finding plant species that can grow on salt/and to produce sheep feed, and on techniques for establishing plantations of saltbushes. Some research has been in response to farmer reports of success in using revegetated salt/and to provide autumn forage, while other work has resulted from the apparent importance of saltbushes in rangeland areas.

Objective measurements of wool production have been taken only recently. Three years research at Katanning indicates that while saltbush material is selected and eaten by sheep, its value for wool production is not high. It …


Sharing Information Benefits The Meat Industry, Michael Paton Jan 1995

Sharing Information Benefits The Meat Industry, Michael Paton

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

Cronic health problems of livestock, seldom detected on farms, reduce the efficiency of abattoirs and returns to producers. But a major project providing information to producers from abattoirs is indicating how everyone could benefit from feedback.


Nature Conservation In The Western Australian Wheatbelt, Max Abensperg-Traun Jan 1995

Nature Conservation In The Western Australian Wheatbelt, Max Abensperg-Traun

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

Growing concern about the survival of flora and fauna in the Western Australian wheatbelt prompted CSIRO scientists to start a long-term study to moniter trends in populations. Max Abensperg-Traun and his colleagues reportt on their findings so far.


Making Horticulture Sustainable, Bob Paulin, Neil Clifton Lantzke, Ian Mcpharlin, Murray Hegney Jan 1995

Making Horticulture Sustainable, Bob Paulin, Neil Clifton Lantzke, Ian Mcpharlin, Murray Hegney

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

Sweet crunchy carrots, luscious strawberries at very reasonable prices, crisp green vegetables - these are just a few of the horticultural products that Western Australians take for granted and eat almost every day. But is their future availability guaranteed as population grows, suburbia spreads and environmental concern increases?


Cooperative Landcare Venture Revisited, Kate Mcinnes Jan 1995

Cooperative Landcare Venture Revisited, Kate Mcinnes

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

Four years ago, the Journal of Agriculture reported on a unique partnership forged in 1989 between the Department of Agriculture Alcoa of Australia Limited and six catchment groups located in the Avon River catchment.

Kate McInnes reports on progress with the Avon Catchment Landcare Project.


Benchmarks For The Rangelands : Mapping And Assessing Country Types In The Outback, Hugh Pringle, Alan Payne Jan 1995

Benchmarks For The Rangelands : Mapping And Assessing Country Types In The Outback, Hugh Pringle, Alan Payne

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

Rangeland surveys map and describe the outback to help evaluate whether current land uses are appropriate and to highlighe areas with potential form other land uses.

The information can also be used to help minimise adverse environmental impacts, restore damaged areas and better use natural recourses in a sustainable fashion.

Hugh Pringle and Alan Payne outline the survey program which has been in progress for a number of years.


Storm : [Wind Erosion In The Great Southern], Dan Carter Jan 1995

Storm : [Wind Erosion In The Great Southern], Dan Carter

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

On Thursday 11 May 1995, a low pressure system with central barometric pressure of 990 hPa formed of south-western Australia. This depression directed gale force winds over the South-West Land Division for some seven hours.

Dan Carter reports on the widespread damage to soils and property, and management practices that would have reduced the problem.


Land Resources Of The Bencubbin Area, Gerard J. Grealish, John Wagnon Jan 1995

Land Resources Of The Bencubbin Area, Gerard J. Grealish, John Wagnon

Land resources series

This survey of the Bencubbin area is part of the Agriculture Western Australia's regional land resource mapping program, and covers approximately 1.5 million hectares in the Merredin, Trayning, Koorda, Mount Marshall, Mukinbudin, Westonia and Nungarin Shires of Western Australia. The climate is Mediterranean, with hot dry summers and cool winters. Land is used for winter cereal production and grazing, and about 60% is cropped each year. Wheat is the main crop and is grown in rotation with lupins, field peas, barley and medic pasture. This report provides primary and interpreted information on the character and capability of the land, for …


Native Vegetation Handbook For The Shire Of Cunderdin, Sarah J. Weaving Jan 1995

Native Vegetation Handbook For The Shire Of Cunderdin, Sarah J. Weaving

Native vegetation handbook series

This booklet provides land managers with information relating to the natural resources of the Shire of Cunderdin. This includes the existing vegetation, drainage systems and soils. Some of the problems relating to the management of natural vegetation resources in the Shire and possible solutions to these problems are discussed. The provision of this information will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.


Native Vegetation Handbook For The Shire Of Trayning, Sarah J. Weaving Jan 1995

Native Vegetation Handbook For The Shire Of Trayning, Sarah J. Weaving

Native vegetation handbook series

This booklet provides land managers with information relating to the natural resources of the Shire of Trayning including the existing vegetation, drainage systems and soils. Some of the problems relating to the management of natural vegetation resources in the Shire of Trayning and possible solutions to these problems are also discussed. Provision of this information will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.


Native Vegetation Handbook For The Shire Of Bruce Rock, Sarah J. Weaving Jan 1995

Native Vegetation Handbook For The Shire Of Bruce Rock, Sarah J. Weaving

Native vegetation handbook series

This booklet provides land managers with information relating to the natural resources of the Shire of Bruce Rock including the existing vegetation, drainage systems and soils. Some of the problems relating to the management of natural vegetation resources in the Shire of Bruce Rock and possible solutions to these problems are also discussed. Provision of this information will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.


Reading The Rangeland: A Guide To The Arid Shrublands Of Western Australia, Don Burnside, Alec Holm, Alan Payne, Georgina Wilson Jan 1995

Reading The Rangeland: A Guide To The Arid Shrublands Of Western Australia, Don Burnside, Alec Holm, Alan Payne, Georgina Wilson

All other publications

Managing the rangelands is complex. Soils and vegetation can vary considerably over short distances in distinct or subtle ways. Separating climatic from management influences on the condition of the land has always been difficult. Whether we live on a sheep station, in a country town, in an Aboriginal community, a mining camp, or even if we only visit the Australian outback, it is vital that we understand and appreciate the unique character and management requirements of the rangelands. Learning to ‘read the rangeland’ has been a slow process, involving the knowledge and skills of pastoralists, Aboriginal people and scientists. This …