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A stand basal area model for plantation grown New Zealand kauri

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  • Chikumbo, Oliver
  • Steward, Greg A.

Abstract

The research covered in this paper is part of a program designed to establish the New Zealand kauri (Agathis australis (D.Don) Lindl.), as a short rotation crop of 80 years by determining optimum silvicultural strategies. Growth models are essential planning tools that aid the development of these strategies. This paper only covers the development of a stand basal area model responsive to thinning. The model was developed with all the available data from planting trials. The plantings trials were unrepresentative and from different localities, which meant different growth rates. The re-measurement data spanned short time periods and at different growth stages of kauri. Irregular measurements were characteristic of these short time periods. A state space model was identified with properties that exhibited stability and robustness in simulation analyses.

Suggested Citation

  • Chikumbo, Oliver & Steward, Greg A., 2007. "A stand basal area model for plantation grown New Zealand kauri," Ecological Modelling, Elsevier, vol. 209(2), pages 367-376.
    • Handle: RePEc:eee:ecomod:v:209:y:2007:i:2:p:367-376
    DOI: 10.1016/j.ecolmodel.2007.06.035
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    References listed on IDEAS

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    1. Masanao Aoki, 1987. "How to Build State Space Models for Nonstationary Time Series and How to Measure Random Walk Components," UCLA Economics Working Papers 438, UCLA Department of Economics.
    2. Aoki, Masanao, 1987. "An alternative measure of random walk components in time series," Economics Letters, Elsevier, vol. 24(3), pages 227-230.
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    Cited by:

    1. Parolo, Gilberto & Ferrarini, Alessandro & Rossi, Graziano, 2009. "Optimization of tourism impacts within protected areas by means of genetic algorithms," Ecological Modelling, Elsevier, vol. 220(8), pages 1138-1147.

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