Height–Diameter Models Using Stand Characteristics forPinus banksianaandPicea mariana

Autor:	Shu Yin Zhang, Mahadev Sharma
Rok vydání:	2004
Předmět:	Pinus Stand density management diagram Jack pine Ecology Diameter at breast height Forestry Model parameters Site index Black spruce Basal area Mathematics
Zdroj:	Scandinavian Journal of Forest Research. 19:442-451
ISSN:	1651-1891 0282-7581
DOI:	10.1080/02827580410030163
Popis:	Height–diameter relationships based on stand characteristics (stand density, basal area and site index) were investigated for jack pine and black spruce trees using the data from permanent growth study plots in northern Ontario, Canada. Approximately half of the data was used to estimate model parameters and the rest was used for model evaluation. Multiple Chapman–Richards growth functions with parameters expressed in terms of various stand characteristics were fitted to determine the best models for predicting height. Models providing the most accurate predictors of height included basal area, trees ha−1 and diameter at breast height. The inclusion of site index did not increase predictive accuracy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e78d7ec5bb6d26b2545f19e80f9d9d7b https://doi.org/10.1080/02827580410030163 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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