Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Publication Year
- Publication
- Publication Type
Articles 1 - 30 of 49
Full-Text Articles in Physical Sciences and Mathematics
Yarra Yarra Catchment : Rapid Catchment Appraisal Report 2001, M Clarke
Yarra Yarra Catchment : Rapid Catchment Appraisal Report 2001, M Clarke
Resource management technical reports
Using the Rapid Catchment Appraisal process, this report summarises current information for the Yarra Yarra Catchment, Northern Agricultural Region in Western Australia. The Rapid Catchment Appraisal (RCA) process is one of the processes included in the strategy to tackle salinity and its management in Western Australia. The RCA process provides a 'snap shot' of information on the risk and impact to agricultural production and natural resources within regional geographic catchments.
Common Conservation Works Used In Western Australia, M G. Keen
Common Conservation Works Used In Western Australia, M G. Keen
Resource management technical reports
This booklet is presented to assist proponents and planners of conservation works by describing the common types used in Western Australia. For each common type, design criteria are listed along with the variables affecting increased risks associated with degradation or structural failure. This information will be useful in choosing appropriate conservation works to alleviate specific degradation in a safe manner.
Native Vegetation On Farms Survey 1996 : A Survey Of Farmers Attitudes To Native Vegetation And Landcare In The Wheatbelt Of Western Australia, Suzanne Jenkins
Native Vegetation On Farms Survey 1996 : A Survey Of Farmers Attitudes To Native Vegetation And Landcare In The Wheatbelt Of Western Australia, Suzanne Jenkins
Resource management technical reports
The Native Vegetation on Farms survey 1996 was performed to assess the attitudes of farmers to a number of issues related to existing native vegetation on farmland, the replanting of vegetation on farms and land degradation. Research has shown that it is important for a proportion of all farmland to have some native vegetation for ecological stability, to regulate hydrological processes and for long-term sustainability of farm production.
Evaluation Of Deep, Open Drains In The North Stirling Area, R Ferdowsian, A T. Ryder, J Kelly
Evaluation Of Deep, Open Drains In The North Stirling Area, R Ferdowsian, A T. Ryder, J Kelly
Resource management technical reports
No abstract provided.
Catchments Of The Esperance Region Of Western Australia, S T. Gee, John Andrew Simons
Catchments Of The Esperance Region Of Western Australia, S T. Gee, John Andrew Simons
Resource management technical reports
No abstract provided.
Salinity Action Plan, Department Of Agriculture And Food, Western Australia
Salinity Action Plan, Department Of Agriculture And Food, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
In November, the Premier of Western Australia, Richard Court, released his governments strategy to tackle one of the State's most serious environmental problems - salinity. This article provides a summary of the action plan, full details are available in a two volum set 'Salinity - a situation statement for Western Australia' and 'Western australian salinity action plan'.
Copies of the reports are available from Publication Section, Agriculture Western Australia, 3 Baron-Hay Court, South Perth 6151. Phone (09) 368 3729
No-Till Sowing : Helping To Keep Cropland Soils In Place, Kevin Bligh, Paul Findlater
No-Till Sowing : Helping To Keep Cropland Soils In Place, Kevin Bligh, Paul Findlater
Journal of the Department of Agriculture, Western Australia, Series 4
Repeated erosion of tilled land can ;ower crop and pasture yields because of reduced available moisture and nutrient storage. Kevin Bligh and Paul Findlater look at the causes of water and wind erosion and the role of no-till sowing in minimising erosion.
No-Till Sowing Systems In North America With Relevance To Western Australia, K J. Bligh
No-Till Sowing Systems In North America With Relevance To Western Australia, K J. Bligh
Resource management technical reports
No abstract provided.
Cooperative Landcare Venture Revisited, Kate Mcinnes
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.
Storm : [Wind Erosion In The Great Southern], Dan Carter
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.
Remnant Vegetation Inventory On The Southern Agricultural Areas Of Western Australia., G R. Beeston, G Mlodowski, A Sanders, D True
Remnant Vegetation Inventory On The Southern Agricultural Areas Of Western Australia., G R. Beeston, G Mlodowski, A Sanders, D True
Resource management technical reports
Remnant vegetation mapping and its incorporation into a Geographical Information System (GIS) data base is the first stage in an overall documentation and promotion of conservation of remnant vegetation in Western Australia. The primary objective of this project being to determine the amount, distribution and regional location of native vegetation remaining on private land in the agricultural area of south-west Western Australia.
How Sustainable Is Grazing Sheep On Annual Pastures In The Woolbelt?, Don Mcfarlane, Richard George
How Sustainable Is Grazing Sheep On Annual Pastures In The Woolbelt?, Don Mcfarlane, Richard George
Journal of the Department of Agriculture, Western Australia, Series 4
Low wool prices have reduced the profitability of producing wool from clover-based annual pastures in the south-western woo/belt. The heavy reliance on one commodity is economically unsustainable for many farmers. But we should also consider how ecologically sustainable the practice is.
Shallow-rooted annual pastures contribute to widespread salinity in the area, annual legumes are acidifying the soils and making them water repellent, and bare, detached soils from heavy grazing cause sheet and rill erosion during autumn storms. In addition, stock are degrading remnant vegetation and destroying the soil's structure.
To counteract this degradation, the woo/belt needs more perennial pastures and …
No-Tillage Sowing Decreases Water Erosion On Loamy Soils And Increases Earthworm Activity, Kevin Bligh
No-Tillage Sowing Decreases Water Erosion On Loamy Soils And Increases Earthworm Activity, Kevin Bligh
Journal of the Department of Agriculture, Western Australia, Series 4
No-tillage sowing places seed and fertiliser in the soil without loosening all of the topsoil. Soil is cultivated only in the sown rows, leaving the inter-row areas largely undisturbed.
No-tillage sowing reduces both wind and water erosion. Soil structure is generally improved, and pasture regeneration is increased because seed is not buried too deeply for re-establishment.
Two long-term trials were establis_hed on loamy soils to determine effects of tillage and cropping on runoff and soil loss.
Red Mud : Cutting Pollution And Boosting Yields, Rob Summers
Red Mud : Cutting Pollution And Boosting Yields, Rob Summers
Journal of the Department of Agriculture, Western Australia, Series 4
A by-product from the refining of bauxite ore in the South-West is proving a bonus for agriculture.
When spread over the land, not only is it improving soil quality, but it is helping to prevent leaching of phosphorus and the consequent massive algal blooms in the waterways.
Bauxite residue is also showing considerable promise in human and animal effluent disposal systems, composting urban refuse, sewage treatments and as a road base.
Western Australia is now in the forefront of this research which is attracting world-wide interest.
Conservation For Production : Kings Rocks Catchment Report, William Oldfield
Conservation For Production : Kings Rocks Catchment Report, William Oldfield
Agriculture reports
The aim of this report is to bring together current information on the land and ideas which will provide landholders of the King Rocks catchment group with a basis to make more informed decisions about managing the land. The report contains information on how the landscape was formed, how areas become degraded, what are the present recommended ways of fixing land degradation and what are the most productive means of farming the land.
The Role Of Earthworms In Western Australian Agriculture, Tom Mccredie, Lex Parker
The Role Of Earthworms In Western Australian Agriculture, Tom Mccredie, Lex Parker
Journal of the Department of Agriculture, Western Australia, Series 4
Earthworms have a reputation as soil builders and renovators, particularly among 'organic' farmers and gardeners. They improve soil fertility through increased aeration, aggregation, water infiltration and release of nutrients from organic matter. However, the benefits of earthworms in the wheatbelt have been doubted for many years because of their poor survival in cultivated soils.
Since cropping began in the Western Auslmlian whealbelt over 1OO years ago, the physical condition of many soils has deteriorated. The primary causes of soil degradation were the European cultivation practices used by farmers and the trampling effect of introduced animals. in particular, sheep.
How To Reduce Spending On Land Conservation, Tim Negus
How To Reduce Spending On Land Conservation, Tim Negus
Journal of the Department of Agriculture, Western Australia, Series 4
Heavy spending on capital works for land conseroation is usually out of the question in the present financial climate, but the recession does not mean that landcare must be abandoned. There are many aspects of landcare that involve little or no extra cost. Soil conseroationist Tim Negus discusses them in this article.
Land Reclamation In The North Stirling Land Conservation District, M F. Lewis, National Soil Conservation Program (Australia)
Land Reclamation In The North Stirling Land Conservation District, M F. Lewis, National Soil Conservation Program (Australia)
Resource management technical reports
Investigations were carried out to determine the interaction between the lakes and groundwater systems, the influence of bedrock structures on groundwater flow, and the regional flow characteristics in the basin. The hydrological investigations showed that water does flow from lakes to the groundwater system. However, the benefits from draining land have to be compared with the benefits of not adding water to the lakes. A basin water balance showed that most of the excess water resulting from reduced epotranspiration since clearing remains in the basin as increased groundwater storage. Only relatively small quantities of the extra water leave the basin …
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.
The Tammin Alcoa Landcare Education Centre, Department Of Agriculture And Food, Western Australia
The Tammin Alcoa Landcare Education Centre, Department Of Agriculture And Food, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
The town is home of the Tanimin Alcoa Landcare Education Centre. This is an ambitious concept by the Shire of Tammin and the Tammin Action Group to use the whole shire to demonstrate land conservation practices on farms, and to show urban and other communities what Western Australia's farmers are doing to conserve the land and practise sustainable agriculture.
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).
Unique Co-Operative Landcare Venture In The Avon Catchment, Darrel Brewin, John Collett
Unique Co-Operative Landcare Venture In The Avon Catchment, Darrel Brewin, John Collett
Journal of the Department of Agriculture, Western Australia, Series 4
The Avon catchment is bustling with landcare activity generated by a unique co-operative venture between farmers, the Department of Agriculture, the National Soil Conservation Program and Alcoa of Australia Ltd. The Avon Catchment Landcare Program was initiated by the Department of Agriculture and Alcoa, in support of the national Decade ofLandcare. The program provides financial, human and technical resources to undertake catchment and farm planning and demonstrations of rehabilitation techniques that tackle soil and water degradation problems. We know that without specially planned landcare programs and substantial changes in land management, land degradation will continue and further losses of agricultural …
The Mallee Road Catchment Project, Rachel Siewert, S Abbott, National Soil Conservation Program (Australia), R A. Nulsen
The Mallee Road Catchment Project, Rachel Siewert, S Abbott, National Soil Conservation Program (Australia), R A. Nulsen
Resource management technical reports
The Mallee Road Sump catchment is a 30,000 ha catchment located immediately south of a major drainage divide in the central southern agricultural region of Western Australia. The catchment has been largely developed for agriculture over the last 25 years and is now showing development of secondary land salinization. Agronomic trials have shown that it is possible to considerably increase plant production in the area and simultaneously reduce recharge to the groundwaters.
Catchment Drainage : Three Case Studies, Department Of Agriculture, Western Australia. Division Of Resource Management, J E P Green
Catchment Drainage : Three Case Studies, Department Of Agriculture, Western Australia. Division Of Resource Management, J E P Green
Resource management technical reports
Three areas were visited, namely the Coobidge creek catchment in Esperance, the Koolanooka-Bowgada Catchment near Morawa and the Petan Creek Catchment (Winchester catchment) near Carnamah. Each area was advised independently through separate reports and the three reports are collated herein for future reference.
Assessment Of Management Strategies For Reducing Land Degradation Problems In The East Perenjori Catchment, C J. Henschke, K J. Bligh, R Ferdowsian
Assessment Of Management Strategies For Reducing Land Degradation Problems In The East Perenjori Catchment, C J. Henschke, K J. Bligh, R Ferdowsian
Resource management technical reports
No abstract provided.
Plant Regeneration And The Control Of Dust On The South Common, Carnarvon, I W. Watson
Plant Regeneration And The Control Of Dust On The South Common, Carnarvon, I W. Watson
Journal of the Department of Agriculture, Western Australia, Series 4
No abstract provided.
Soil Conservation And Management Strategies For The Toolibin Catchment, S J. Hearn
Soil Conservation And Management Strategies For The Toolibin Catchment, S J. Hearn
Resource management technical reports
No abstract provided.
Water Erosion In The Geraldton Area During June-July 1986, K J. Bligh
Water Erosion In The Geraldton Area During June-July 1986, K J. Bligh
Resource management technical reports
No abstract provided.
Mogumber Drainage Works Succeed, L K. Lenane
Mogumber Drainage Works Succeed, L K. Lenane
Journal of the Department of Agriculture, Western Australia, Series 4
The loss of arable farmland from soil erosion, waterlogging and salinity is a severe problem on some Western Australian farms.
When the arable land comprises only 40 per cent of the total area within the Mogumber Soil Conservation District, this loss is a real cause for concern. So too is the resulting damage to roads, siltation of railway culverts, and deaths of roadside trees from rising saline watertables.
However, drainage, contour and other works undertaken by the Mogumber Soil Conservation District have halted this degredation. Badly eroded areas that were fenced off now have a satisfactory ground cover. A wheat …
An Inventory And Condition Survey Of Rangelands In The Carnarvon Basin, Western Australia, A L. Payne, G F. Spencer, P J. Curry
An Inventory And Condition Survey Of Rangelands In The Carnarvon Basin, Western Australia, A L. Payne, G F. Spencer, P J. Curry
Technical Bulletins
The inventory and condition survey of rangelands in the Carnarvon Basin, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1980 and 1982, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed covers …