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Additional results for perpendicular distance sampling

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Abstract:

Over the last decade a number of new methods have been proposed to sample coarse woody debris. Of the new methods, both field trials and computer simulations suggest that perpendicular distance sampling is often the most efficient method for estimating the volume and surface area of coarse woody debris. As with any new sampling technique, further research and field testing are required to address some of the practical problems associated with the implementation of perpendicular distance sampling. This paper provides further results associated with the sampling of curved and multistemmed logs and field techniques for both slope correction and the measurement of elevated logs.

Au cours de la dernière décennie, plusieurs méthodes nouvelles ont été proposées pour échantillonner les débris ligneux grossiers. Parmi ces nouvelles méthodes, tant les essais sur le terrain que les simulations par ordinateur indiquent que l'échantillonnage à distance perpendiculaire est souvent la méthode la plus efficace pour estimer le volume et la superficie des débris ligneux grossiers. Comme c'est le cas avec n'importe quelle nouvelle méthode d'échantillonnage, d'autres travaux de recherche et essais sur le terrain sont nécessaires pour trouver une solution à certains des problèmes pratiques associés à l'implantation de l'échantillonnage à distance perpendiculaire. Cet article apporte d'autres résultats concernant l'échantillonnage des billes courbes ou comportant plusieurs tiges ainsi que les méthodes permettant de corriger pour la pente et de mesurer des billes surélevées sur le terrain. [Traduit par la rédaction]

Document Type: Research Article

Publication date: 2005-04-01

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  • Published since 1971, this monthly journal features articles, reviews, notes and commentaries on all aspects of forest science, including biometrics and mensuration, conservation, disturbance, ecology, economics, entomology, fire, genetics, management, operations, pathology, physiology, policy, remote sensing, social science, soil, silviculture, wildlife and wood science, contributed by internationally respected scientists. It also publishes special issues dedicated to a topic of current interest.
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