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Full-Text Articles in Physical Sciences and Mathematics
Saving The Catchments Of Albany's Harbours, Ashley Prout
Saving The Catchments Of Albany's Harbours, Ashley Prout
Journal of the Department of Agriculture, Western Australia, Series 4
Fertiliser, particularly phosphorus, running off farm land is a major source of nutrient entering Albany's harbours. Oyster Harbour, which has a large rural catchment, is especially at risk.
The build-up in nutrients in the harbours has caused nuisance algal growth since the early 1970s and subseuent death of more than half the seagrass beds, which are vital to the areas marine life.
The Department of Agriculture, at the request of the Environmental protection Authority, has developed and promoted catchment management plans that enable rural land holders to reduce the amount of run-off into the harbours without necessarily sacrificing farm productivity. …
The Effect On Farm Profit Of Conserving Stubble To Prevent Wind Erosion, A D. Bathgate
The Effect On Farm Profit Of Conserving Stubble To Prevent Wind Erosion, A D. Bathgate
Journal of the Department of Agriculture, Western Australia, Series 4
Over-grazing of stubbles is a major cause of winf erosion on WesternAustralian farms. Stubble contributes to the 'roughness' of the paddock; as the roughness is reduced, the risk of winf erosion is increased.
The risk of lupinosis in sheep has previously reduced the likelihood of lupin stubble being over grazed, but the development of Gungurru, a phomopsis-resistent variety of lupin, has increased the potential for over-grazing and hence the probability of wind erosion.
This article describes the economic benefit (or cost) of conserving stubble at the conservation standards.