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A farm-scale, bio-economic model for assessing investments in recycled water for irrigation

Citation

Brennan, LE and Lisson, S and Poulton, PL and Carberry, PS and Bristow, KL and Khan, S, A farm-scale, bio-economic model for assessing investments in recycled water for irrigation, Australian Journal of Agricultural Research, 59, (11) pp. 1035-1048. ISSN 0816-1089 (2008) [Refereed Article]

DOI: doi:10.1071/AR06316

Abstract

Demand for water in Australia is increasing along with growing pressure to maximise the efficiency of irrigation water use and seek additional and alternative irrigation supplies. The scarcity of water supplies coupled with the need for urban communities to dispose of large quantities of treated recycled water from sewage treatment plants has led to increasing interest from urban and rural communities in the reticulation of this water for irrigating adjacent crop-production areas. Proposals to use recycled water inevitably lead to a complex range of issues that need to be addressed, including: costs and benefits of supplying an additional source of water to current or new cropping systems; optimum irrigation design and management, particularly where there are multiple sources of irrigation water; management of overflow from on-farm water storages; and environmental implications with regard to salinity, runoff, drainage, nitrate leaching, and environmental flows. Simulation models can capture many of the key factors and processes influencing irrigated crop production systems, and can play a useful role in exploring these issues. In this paper, we have described an approach that couples agricultural production system and economic models in a way that enables analysis of the likely benefits and risks of investing in recycled water, although the analysis is equally relevant to any assessment of the value of an additional source of irrigation water, particularly saline water. The approach has been illustrated with a case study of a mixed-crop farm in the Darling Downs region of Queensland, Australia, in which the farm-scale crop production, economic, and environmental implications of investing in recycled water were considered.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Other Agricultural and Veterinary Sciences
Research Field:Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)
Objective Division:Environment
Objective Group:Environmental and Natural Resource Evaluation
Objective Field:Rural Water Evaluation (incl. Water Quality)
Author:Lisson, S (Dr Shaun Lisson)
ID Code:63358
Year Published:2008
Web of Science® Times Cited:8
Deposited By:Agricultural Science
Deposited On:2010-04-30
Last Modified:2010-05-03
Downloads:0

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