Ms. Williams et Ht. Schreuder, Guidelines for choosing volume equations in the presence of measurement error in height, CAN J FORES, 30(2), 2000, pp. 306-310
Citations number
18
Categorie Soggetti
Plant Sciences
Journal title
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE
Assuming volume equations with multiplicative errors, we derive simple cond
itions for determining when measurement error in total height is large enou
gh that only using tree diameter, rather than both diameter and height, is
more reliable for predicting tree volumes. Based on data for different tree
species of excurrent form, we conclude that measurement errors up to +/- 4
0% of the true height can be tolerated before inclusion of estimated height
in volume prediction is no longer warranted.