Standards for evaluating taper estimating systems | Zendy

A. Kozak | Zendy; J. Harry G. Smith | Zendy

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Standards for evaluating taper estimating systems

Author(s) -

A. Kozak,

J. Harry G. Smith

Publication year - 1993

Publication title -

the forestry chronicle

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.335

H-Index - 49

eISSN - 1499-9315

pISSN - 0015-7546

DOI - 10.5558/tfc69438-4

Subject(s) - variable (mathematics) , polynomial , exponent , mathematics , point (geometry) , key (lock) , douglas fir , statistics , computer science , mathematical analysis , geometry , forestry , geography , philosophy , linguistics , computer security

Four taper-estimating systems were evaluated for coastal Douglas-fir to demonstrate statistical and practical considerations that should be used when selecting a taper-estimating system for forest inventory purposes. The four equations compared were: Max and Burkhart's (1976) segmented polynomial, Newnham's (1988) variable-form, Ormerod's (1986) diameter-point and Kozak's (1988) variable-exponent equation. Key words: Taper, segmented polynomial, variable-form, diameter-point, variable exponent, coastal Douglas-fir

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