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Analysis of an integrated model for assessing land and water policy options

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  • Gilmour, J.K.
  • Letcher, R.A.
  • Jakeman, A.J.

Abstract

This paper outlines results of a sensitivity analysis on a model developed to examine water policy and land use change options in the Yass River catchment, NSW. The model has three integrated components consisting of policy, hydrological and agricultural production system models. The sensitivity analysis involved running variables in the model over a broad range of values to examine the response of model outputs. For ease of interpretation, three indicators were used to examine the model output: the number of zero flow days; the median of non-zero flows; agricultural profit. The analysis shows that the model is sensitive to changes in inputs to all component models. But the sensitivity of the model varies depending on whether the input selected has a direct or indirect effect on other system components. Sensitivity analysis of the integrated model illustrates the response of the integrated model when assessing those land and water policy options selected for analysis, and highlights the plausibility of the model results and limitations in applying the model as a decision support tool for policy analysis.

Suggested Citation

  • Gilmour, J.K. & Letcher, R.A. & Jakeman, A.J., 2005. "Analysis of an integrated model for assessing land and water policy options," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 69(1), pages 57-77.
    • Handle: RePEc:eee:matcom:v:69:y:2005:i:1:p:57-77
    DOI: 10.1016/j.matcom.2005.02.030
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    References listed on IDEAS

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    Cited by:

    1. Feng, Li-Hua & Zhang, Xing-Cai & Luo, Gao-Yuan, 2008. "Application of system dynamics in analyzing the carrying capacity of water resources in Yiwu City, China," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 79(3), pages 269-278.
    2. Marit E. Kragt & Jeff Bennett, 2008. "Developing a Questionnaire for Valuing Changes in Natural Resource Management in the George Catchment, Tasmania," Environmental Economics Research Hub Research Reports 0808, Environmental Economics Research Hub, Crawford School of Public Policy, The Australian National University.
    3. Ekasingh, B. & Letcher, R.A., 2008. "Successes and failures to embed socioeconomic dimensions in integrated natural resource management modeling: Lessons from Thailand," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 78(2), pages 137-145.

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