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Full-Text Articles in Physical Sciences and Mathematics

South East Humps Focus Catchment Report, A Hollick Dec 2004

South East Humps Focus Catchment Report, A Hollick

Resource management technical reports

This report provides a record of the activities carried out by the Lockhart Focus Support Team and the Catchment Group. It covers the results of the investigations and a summary of the group's catchment plan for the South East Humps Catchment east of Hyden in Western Australia. It covers the current best available information on soils, groundwater hydrology, surface water control, alternative crops and pastures, and revegetation options.


South Yarding Focus Catchment Report, A Hollick Nov 2004

South Yarding Focus Catchment Report, A Hollick

Resource management technical reports

This report provides a record of the activities carried out by the South Yarding Focus Support Team and Catchment Group. It covers the results of investigations and summarises the group's catchment plan of South Yarding, Western Australia, based on the best available information on soils, groundwater hydrology, surface water control, alternative crops and pastures and revegetation options.


Technical Assessment Of Natural Resource Management Threats And Options In The Northern Agricultural Region Of Western Australia, Lorinda Hunt, G Patterson, Northern Agricultural Catchments Council (Wa) Sep 2004

Technical Assessment Of Natural Resource Management Threats And Options In The Northern Agricultural Region Of Western Australia, Lorinda Hunt, G Patterson, Northern Agricultural Catchments Council (Wa)

Resource management technical reports

Analysis of the risk of soil, land and water degradation within the Northern Agricultural Region of Western Australia. Natural resource issues discussed include: acid groundwater, acid sulfate soils, climate change, dryland salinity, flooding, herbicide resistance, non-wetting (water repellence), nutrient loss and eutrophication, remnant vegetation decline, soil acidity, soil fertility decline, soil structure decline, subsurface compaction, waterlogging, wind erosion and soil contamination.


Lower Yilgarn Catchment Appraisal 2003, D G. Cummins Aug 2004

Lower Yilgarn Catchment Appraisal 2003, D G. Cummins

Resource management technical reports

This report summarises current information on risks and impacts to agricultural production and natural resources within the Lower Yilgarn Catchment. It also identifies suitable options to manage such risks. The report has been divided into three sections : the natural resource base, the catchment risks and management options and impacts. Rapid Catchment Appraisal aims to document salinity risk and management options by addressing all threats to the natural resource base.


Groundwater Study Of The Narrogin Townsite, Edward K. Crossley Mar 2004

Groundwater Study Of The Narrogin Townsite, Edward K. Crossley

Resource management technical reports

A groundwater study was carried out in the townsite of Narrogin, Western Australia, in April 2002. The study consisted of a drilling program to install a network of groundwater monitoring bores. This report contains background information for the town and its catchment, the climatic, geological and hydrogeological investigations, and conclusions on the town's salinity risk and recommendations for improved water management.


Groundwater Trends In The Central Agricultural Region, S Ghauri Mar 2004

Groundwater Trends In The Central Agricultural Region, S Ghauri

Resource management technical reports

This report provides an update of groundwater data and interpretation for each of the hydrozones of the central agricultural region in Western Australia.


Narrogin Townsite Test Pumping Results 2003, Louise Hopgood Feb 2004

Narrogin Townsite Test Pumping Results 2003, Louise Hopgood

Resource management technical reports

Test pumping of a production bore in Narrogin took place for 24 hours in August 2003. Data generated by the test pumping was analysed along with groundwater monitoring, climate and geological data. Laboratory analyses of water samples from the production bore indicate very high levels of salinity and hardness which may lead to severe scaling and corrosion of pumps, pipes and pipe fittings.


Bremer-Gairdner Catchment Appraisal Report 2003, Tim D. Overheu Jan 2004

Bremer-Gairdner Catchment Appraisal Report 2003, Tim D. Overheu

Resource management technical reports

Assessment of the condition and future risks to agricultural and natural resources within the Bremer-Gairdner region in Western Australia using the Rapid Catchment Appraisal. Details include climate, geology, soil-landscape information, hydrology, waterways, wetlands and estuaries, natural vegetation, land use and infrastructure, agricultural production, demographics; soil degredation risks, hydrology risks, farming system impacts, vegetation condition and risks, infrastructure assets; and management options.


Frankland-Gordon Area : Catchment Appraisal 2003, Tim D. Overheu, Natural Heritage Trust (Australia) Jan 2004

Frankland-Gordon Area : Catchment Appraisal 2003, Tim D. Overheu, Natural Heritage Trust (Australia)

Resource management technical reports

Rapid catchment appraisal to assess the condition of, and future risks to, agricultural and natural resources within the Frankland Gordon area in Western Australia.


Phytoplankton Composition Within The Tidal Freshwater-Oligohaline Regions Of The Rappahannock And Pamunkey Rivers In Virginia, Harold G. Marshall, Lubomira Burchardt Jan 2004

Phytoplankton Composition Within The Tidal Freshwater-Oligohaline Regions Of The Rappahannock And Pamunkey Rivers In Virginia, Harold G. Marshall, Lubomira Burchardt

Biological Sciences Faculty Publications

The Rappahannock River is a major river system across north central Virginia prior to entering the Chesapeake Bay. In contrast, the Pamunkey River is smaller in size and joins the Mattoponi River to form the York River, which flows parallel to the Rappahannock before it also flows into Chesapeake Bay. A unique mixing area for both flora and environmental conditions exists in the tidal freshwater-oligohaline region of both rivers. This is a dynamic mixing section where freshwater and estuarine species are subject to the interaction of river flow and daily tidal rhythms. The phytoplankton composition in this region of the …


Groundwater Study Of The York Townsite, Edward K. Crossley, Department Of Agriculture, Western Australia. Rural Towns Program Jan 2004

Groundwater Study Of The York Townsite, Edward K. Crossley, Department Of Agriculture, Western Australia. Rural Towns Program

Resource management technical reports

A groundwater study was carried out in the townsite of York in April-May 2002. The prupose was to collect information on local groundwater systems that could be used to develop a salinity management strategy. The study included a driling program, which established a network of monitoring bores. Seventy-seven monitoring bores were installed at 32 sites as well as a production bore for testing aquifer properties.


Wheatbelt Waterwise = Saltwise : Gardening Guide, John Colwill, Juana Roe Jan 2004

Wheatbelt Waterwise = Saltwise : Gardening Guide, John Colwill, Juana Roe

Bulletins 4000 -

As a result of agricultural clearing, many country towns are now feeling the effects of rising groundwater and the salt that it carries. Salinity has been identified as Australia’s number one environmental problem. While most people think that salinity means land lost to agriculture, it also poses a serious threat to many country towns. A report for the Department of Agriculture in 2001 highlighted the need for simple and cost-effective salinity management strategies to be adopted in wheatbelt towns. These included water recycling, revegetation and more efficient water use.


Groundwater Investigation Buntine-Marchagee Natural Diversity Recovery Catchment, Russell John Speed, M Strelein Jan 2004

Groundwater Investigation Buntine-Marchagee Natural Diversity Recovery Catchment, Russell John Speed, M Strelein

Resource management technical reports

A groundwater investigation was initiated in the Buntine-Marchagee Natural Diversity Recovery Catchment 200 kms north-east of Perth, Western Australia in 2002. The investigation aimed to install a regional groundwater monitoring network and characterise the regolith throughout the catchment. Drill site selection was based on establishing a series of transects to enable construction of hydrogeological cross-sections to enhance conceptual understanding of the catchment.


Merredin Townsite Groundwater Pumping And Desalination Pilot Project, Rosemary Nott, Mark Pridham, Juana Roe, Jeff Ibbott, Alan Leeson, A Leeson Jan 2004

Merredin Townsite Groundwater Pumping And Desalination Pilot Project, Rosemary Nott, Mark Pridham, Juana Roe, Jeff Ibbott, Alan Leeson, A Leeson

Resource management technical reports

Townsite salinity affects more than 40 towns in the WA wheatbelt. Waterlogging and salinity are responsible for damamge to townsite infrastructure. Through groundwater pumping and desalination, the State Salinity Council (now the Natural Resource Management Council) granted Merredin the the chance to prevent further damage to the townsite by funding this project.


Kellerberrin Townsite Test Pumping Results 2003, Louise Hopgood Jan 2004

Kellerberrin Townsite Test Pumping Results 2003, Louise Hopgood

Resource management technical reports

A production bore in Kellerberrin, Western Australia, was test pumped for 24 hours in August 2003. Data generated by the pumping were analysed with groundwater monitoring, climate and geological data. Laboratory analyses of water samples from the production bore indicate a low pH and very high levels of salinity, hardness, sodium, chloride, iron, sulphate, aluminium and manganese. This is likely to lead to scaling, blockages, staining and/or corrosion of pumps, pipes and pipe fittings.