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Water conservation in urban landscaping using a low-cost soil moisture controller

Byrne, J., Sturman, J., Anda, M.ORCID: 0000-0001-7398-4192, Mathew, K. and Ho, G.ORCID: 0000-0001-9190-8812 (2002) Water conservation in urban landscaping using a low-cost soil moisture controller. In: Water and wastewater : perspectives of developing countries : proceedings of the international conference, WAPDEC, 11 - 13 December, New Delhi, India pp. 315-322.



Landscape irrigation often constitutes a considerable percentage of total urban scheme water demand and improvements in irrigation efficiency have the potential to contribute to substantial water savings. Soil moisture monitoring devices can play an important role in improving irrigation efficiency, in particular, helping to overcome the problem of over watering that results from poor irrigation scheduling. A low-cost capacitance soil moisture controller (SMC) is currently the subject of a twelve-month trial at the Environmental Technology Centre at Murdoch University in Perth Western Australia, between January and December 2002. When properly installed and calibrated, the SMC is designed to over-ride the program of a clock driven irrigation control unit when the soil moisture content is above a level which has been set by the user, thus preventing unnecessary irrigation. The objective of the trial is to evaluate whether or not the SMC will work reliably in the field in sandy soil with three common types of garden irrigation system, namely shrub sprinklers, micro-sprays and dripline. Preliminary results indicate that the SMC operates effectively and that it has the potential to contribute to considerable water savings when installed properly as part of a well-designed domestic irrigation system.

Item Type: Conference Paper
Murdoch Affiliation: School of Environmental Science
Environmental Technology Centre
Publisher: Anamaya Publishers
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