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Modelling initial survival and growth of radiata pine in New Zealand.

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dc.contributor.author Mason, Euan G.
dc.contributor.author Whyte, A. Graham D.
dc.date.accessioned 2011-07-28T13:20:10Z
dc.date.available 2011-07-28T13:20:10Z
dc.date.issued 1997
dc.identifier.citation Acta Forestalia Fennica. 1997. 2: 1-38. fi
dc.identifier.issn 0001-5636
dc.identifier.uri http://hdl.handle.net/10138/27294
dc.description.abstract A sensitive framework has been developed for modelling young radiata pine survival, its growth and its size class distribution, from time of planting to age 5 or 6 years. The data and analysis refer to the Central North Island region of New Zealand. The survival function is derived from a Weibull probability density function, to reflect diminishing mortality with the passage of time in young stands. An anamorphic family of trends was used, as very little between-tree competition can be expected in young stands. An exponential height function was found to fit best the lower portion of its sigmoid form. The most appropriate basal area/ha exponential function included an allometric adjustment which resulted in compatible mean height and basal area/ha models. Each of these equations successfully represented the effects of several establishment practices by making coefficients linear functions of site factors, management activities and their interactions. Height and diameter distribution modelling techniques that ensured compatibility with stand values were employed to represent the effects of management practices on crop variation. Model parameters for this research were estimated using data from site preparation experiments in the region and were tested with some independent data sets. fi
dc.language.iso en fi
dc.publisher The Society of Forestry in Finland - The Finnish Forest Research Institute fi
dc.subject mallit fi
dc.subject kasvumallit fi
dc.subject taimet fi
dc.subject kuolleisuus fi
dc.subject radiatamänty fi
dc.subject Pinus radiata fi
dc.subject growth fi
dc.subject models fi
dc.subject seedlings fi
dc.subject New Zealand fi
dc.subject growth modelling, young crops, radiata pine, New Zealand fi
dc.title Modelling initial survival and growth of radiata pine in New Zealand. fi
dc.type Artikkeli fi
dc.identifier.laitoskoodi SMS fi
dc.subject.ysa Uusi Seelanti fi

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