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Physical Sciences and Mathematics Commons™
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Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
Reclaiming Sandplain Seeps Planting Trees, Richard George
Reclaiming Sandplain Seeps Planting Trees, Richard George
Journal of the Department of Agriculture, Western Australia, Series 4
Sandplain seeps affect large areas of agricultural land in Western Australia's eastern and northern wheatbelt and in the Great Southern. These seeps are estimated to account for about 10 per cent of dryland salinity in the agricultural area. Research and field observations show that seeps may be cheaply and quickly reclaimed using various types of drains or small blocks of trees (George 1990). This article discusses results of reclamation methods associated with tree planting on sandplain seeps in the eastern wheatbelt.
Survey Of The Damage Caused To Trees By Goats, Steve Gherardi, Dick Mills, Tim Johnson
Survey Of The Damage Caused To Trees By Goats, Steve Gherardi, Dick Mills, Tim Johnson
Journal of the Department of Agriculture, Western Australia, Series 4
The damage that goats can cause to trees is one of the major problems associated with their farming in the agricultural areas of Australia. It is also considered one of the main hindrances to the development of the goat industry. The Department of Agriculture s Goat Industry Development Unit surveyed mohair and cashmere producers to determine the prevalence of tree damage and its extent and severity; why producers believed goats damaged trees; and how producers minimised or prevented this damage.
Planting Trees To Control Salinity, Nick Schofield, Phil Scott
Planting Trees To Control Salinity, Nick Schofield, Phil Scott
Journal of the Department of Agriculture, Western Australia, Series 4
Dense tree plantings covering at least 30 per cent of cleared land can lower groundwater levels by two metres or more in 10 years from the time of planting. This sizeable drop can be expected at sites receiving 700 to 800 mm of rain a year. Research by the Water Authority of Western Australia shows the most promising strategy when using trees is to put dense plantings on the discharge zone and on lower to midslopes. This strategy is successful where groundwaters contain less than 30,000 milligrams per litre total soluble salts (TSS).
This article discusses research in the 450 …