Physical Sciences and Mathematics Commons^™

Report Card On Sustainable Natural Resource Use In Agriculture, Robert Summers, David Weaver

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Condition and trend Nutrients, such as phosphorus (P), are essential for profitable agriculture in the south-west of WA; however, excess P – more than is required for optimal production – is stored in many agricultural soils. On average, pasture soils and arable soils contain 1.3 times and 1.6 times respectively, as much P as is required for optimal production. Production in P-enriched soils is more likely to be constrained by soil acidity (50–60% of pasture and arable soils), potassium (K) (50% of pasture soils and less than 10% of arable soils), and sulphur (S) (30% of pasture soils). Management implications …

Western Australian Resource Condition Monitoring Projects 2007-2009, Ceidwen Pengelly, 2010

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Monitoring the status and trends of our natural resources is the only way we can assess whether the actions that have been implemented are making a difference. The impetus for this resource condition monitoring program (RCM) was the recognition that our monitoring networks, baseline data and data management systems were inadequate to enable quantitative reporting to government, and the community, on the difference their investments in natural resource management were making. It was considered that making a significant investment in raising our ability to report would be a long-lasting legacy of value to the state.

Natural Resource Management Intermediaries As Potential Next-Users, Jamie Bowyer, Marie Shanks

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A wide range of individuals and organisations play a role in Natural Resource Management (NRM) in Western Australia currently. Many different service providers also Interact with farmers and land managers to assist or influence farm management decision making. This extensive network has the potential to be tapped by NRM projects to more efficiently influence on-ground practice change. Given the current environment of 'information overload' it is even more important to use these established networks effectively rather than to invent new ones.

This document lists a selection of NRM-related intermediaries and the roles they play in the agricultural sector. Where available, …

Current Status And 25 Year Trends For Soil Acidity, Fertility And Salinity In The Coastal Catchments Of The Peel-Harvey, Robert Summers, David Weaver

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The current status and trends of soil analyses in the coastal catchment of the Peel Harvey estuary were developed from historical soil data (1982 to 1991) combined with a renewed sampling to greater depth (1 m). This report encompasses the data collected from the first year of the project. Soil phosphorus content was found to be high but has dropped slightly since 1991. Soil pH is very low and is likely to be limiting production but have risen slightly since 1991. Soil potassium content is generally so low that it may be limiting production especially to the west of the …

Phosphorus In The Landscape: Diffuse Sources To Surface Waters. Land And Water Resources Research And Development Corporation. Occasional Paper 16/98, Richard Davis, Anne Hamblin, E O'Loughlin, Nic Austin, R Banens, P Cornish, P Hairsin, M Mcculloch, Phil Moody, J Olley, B Prove, I Smalls, David Weaver

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The National Eutrophication Management Program (NEMP) and Environment Australia convened a workshop to develop a coherent overview of the sources and transport of diffuse phosphorus in Australian catchments based on the latest knowledge. The Land and Water Resources Research and Development Corporation (LWRRDC) and the Murray–Darling Basin Commission (MDBC) jointly fund NEMP. A select group of scientists attended the workshop and developed a coherent statement about phosphorus sources and transport in Australian catchments. The group did not extend this statement to include recommended management practices. This paper reports the findings from the workshop. State governments have developed algal and nutrient …

The Protection Of Remnant Vegetation On Private Land In The Agricultural Region Of Western Australia, Department Of Agriculture And Food, Western Australia

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No abstract provided.

Memorandum Of Understanding Between The Commissioner For Soil And Land Conservation, Environmental Protection Authority, Department Of Environmental Protection, Agriculture Western Australia, Department Of Conservation And Land Management, Water And Rivers Commission For The Protection Of Remnant Vegetation On Private Land In The Agricultural Region Of Western Australia, Department Of Agriculture And Food, Western Australia, Western Australia. Commissioner Of Soil And Land Conservation, Western Australia. Environmental Protection Authority, Western Australia. Dept. Of Environmental Protection, Western Australia. Dept. Of Conservation And Land Management, Western Australia. Water And Rivers Commission

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Memorandum -- Schedule 1. Statutory requirements -- Schedule 2. Area covered by this memorandum -- Schedule 3. Assessment critieria -- Schedule 4. Assessment manuals: Supporting manual 4.2. Deprtment of Environmental Protection. Environmental evaluation of native vegetation in the wheatbelt of Western Australia -- Supporting manual 4.3. Agriculture Western Australia. Procedures for the administration of clearing and protection of native vegetation in Western Australia -- Supporting manual 4.4. Water and R
onmental impact assessment -- Schedule 8. Adjustment measures.

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

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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 …