Modelling the influence of stand structural,edaphic and climatic influences on juvenile Pinus radiata fibre length |
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| Authors: | Michael S. Watt,Ryan D&rsquo Ath,Alan C. Leckie,Peter W. Clinton,Graham Coker,Murray R. Davis,Robyn Simcock,Roger L. Parfitt,John Dando,Euan G. Mason |
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| Affiliation: | 1. Ensis, P.O. Box 29237, Fendalton, Christchurch, New Zealand;2. Ministry of Agriculture and Forestry, P.O. Box 25022, Christchurch, New Zealand;3. Landcare Research, Private Bag 92170, Auckland, New Zealand;4. Landcare Research, Private Bag 11052, Palmerston North, New Zealand;5. School of Forestry, University of Canterbury, Private Bag 4800, Christchuch, New Zealand |
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| Abstract: | The objectives of this study were to determine the influence of site, fertilisation and age on fibre length and develop predictive models of fibre length from a comprehensive set of climatic, edaphic and stand variables. Data were collected from a nationwide set of 22 site quality plots where Pinus radiata D. Don was established at high stand densities (40 000 stems ha−1) and grown over a period of 4 years. The main environmental drivers of fibre length were identified by assessing the strength of bivariate correlations and use of multiple regression. Path analysis was used as an extension to multiple regression to separate cause from effect and quantify the direct influence of variables significantly related to fibre length. |
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| Keywords: | Environment Fibre length Path analysis Pinus radiata Stem slenderness Taper Temperature Tracheid length |
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