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Technology in Australia 1788-1988 |
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Table of Contents
Chapter 3 I Background II Early European Settlements III Assessment Of Available Water Resources IV Water Supplies For Goldmining Development V Irrigation Development VI Farm And Stock Water Supplies i Early development - extensive distribution systems ii The Great Artesian Basin iii Groundwater research iv Windmills v Farm storages VII Urban Water Supplies VIII Wastewater Management And Treatment IX Water Quality Management X Limnological And Water Quality Research XI New Techniques In Water Resource Planning And Management XII Legislation XIII Conclusion XIV List Of Abbreviations XV Acknowledgements XVI Plantations-high Productivity Resources References Index Search Help Contact us |
Farm storagesOn the farm, larger and more effective storages have been made possible by the use of bigger and more efficient equipment and improved methods of soil analysis and dam design, including the estimation of catchment run-off and peak rates of discharge. In many areas, these developments have enabled the storage of water for supplemental irrigation as well as domestic and stock purposes.New techniques have been extended to the construction of large off-stream storages, which can serve several farms. These storages, in the form of excavated tanks or ring tanks, are used to hold surplus flows from adjacent streams, and drainage water from local irrigation schemes. These large off-stream storages will become increasingly significant as major rivers approach the economic limit of water conservation in large reservoirs. Evaporation from farm storages and earth channels has been a major concern for many years, particularly in the arid inland, where evaporation rates can be as high as 2.8 m per annum. Considerable effort has been expended in Australia and overseas to develop effective and economical evaporation suppressants, so far without success. A technological break-through in this field could result in a massive increase in available rural water supplies and a consequent increase in agricultural production and the security of farming.
© 1988 Print Edition pages 169 - 170, Online Edition 2000 Published by Australian Science and Technology Heritage Centre, using the Web Academic Resource Publisher http://www.austehc.unimelb.edu.au/tia/171.html |