Physical Sciences and Mathematics Commons^™

Water Erosion In The Geraldton Area During June-July 1986, K J. Bligh

Resource management technical reports

No abstract provided.

A Review Of Machinery For Cropping With Reduced Water Erosion, K J. Bligh

Resource management technical reports

No abstract provided.

Preliminary Groundwater And Salinity Investigations In The Eastern Wheatbelt. 3. Welbungin And Beacon River Catchments, Richard J. George Dr, P W C Frantom

Resource management technical reports

Water-tables show no obvious signs of a nett annual rise in the bores monitored in the valley floor, lower slope areas over the three year period. Groundwaters are extremely saline, the sedimentary and saprolite aquifers permeable (hydraulic conductivity range 0.1-2.0 m/day) (0.0001). Future management systems should seek to decrease recharge by changing rotations and farm practises while increasing discharge by using trees, pumps and halophytes. Options are available for drainage.

Drains : A Method Of Financially Assessing Drains Used To Mitigate Waterlogging In South-Western Australia, John S. Salerian, D J. Mcfarlane

Resource management technical reports

Seepage interceptor drains are often effective in mitigating waterlogging in duplex (sand over clay) soils on hill slopes in the sout-west. Spoon and W drains are sometimes effective in removing excess surface waters form clay flats.

This report outlines a method to determine the long-term (1 to 20 years) cost-effectiveness of installing drains to mitigate waterlogging for each individual situation.

The Soils Of South Carrabin Research Station -Light Land Annex, Henry Smolinski, G G. Scholz

Resource management technical reports

No abstract provided.

Investigation Of A Saline Valley On Allandale Research Farm, D J. Mcfarlane, R Engel, A T. Ryder

Resource management technical reports

Geophysical surveys and drilling were used to investigate a saline valley on Allandale Research Farm. These techniques showed that the geology is controlling the location of two main areas of saline seeps and they identified another area at risk of increased salinity. They were also used to obtain information on the groundwater system and to assist in making management recommendations.

Electromagnetic terrain conductivity surveys showed that the most saline soils occurred upstream of a cross-cutting magnetic anomaly caused by a dolerite dyke. A seismic survey showed that the anomaly coincided with a bedrock rise. This bedrock rise restricts groundwater flow …

Banks : A Method Of Financially Assessing Banks Used To Mitigate Water Erosion In South-Western Australia, John S. Salerian, D J. Mcfarlane

Resource management technical reports

No abstract provided.

Estimation Of Runoff Volumes For Ungauged Catchments In The Agricultural Areas Of Western Australia, J R. Davies, D J. Mcfarlane

Resource management technical reports

Describes an analysis of flood runoff volumes from 16 small, gauged catchments in the agricultural areas of south western Australia. It also describes methods for estimating flood runoff volumes from ungauged catchments. The independent variables found to be statistically significant in explaining the variability in flood runoff volumes from the gauged catchments were catchment area, mean annual rainfall and the percentage of the catchment that was cleared. No soil factor was found to be significant.

Water Erosion Survey In The Northam District After Storms In June 1986, D J. Mcfarlane, A T. Ryder

Resource management technical reports

No abstract provided.

Survey Of Research Priorities In Water Erosion, Waterlogging And Flooding In South-Western Australia, D J. Mcfarlane, E G. Barrett-Lennard

Resource management technical reports

No abstract provided.