Some comments on design-based line-intersect sampling with segmented transects

doi:10.1007/s10651-007-0042-z

Some comments on design-based line-intersect sampling with segmented transects

2007-10-25

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Lucio Barabesi *

DOI：10.1007/s10651-007-0042-z

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Abstract

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Line-intersect sampling based on segmented transects is adopted in many forest inventories to quantify important ecological indicators such as coarse woody debris attributes. By assuming a design-based approach, Affleck, Gregoire and Valentine (2005, Environ Ecol Stat 12:139-154) have recently proposed a sampling protocol for this line-intersect setting and have suggested an estimation method based on linear homogeneous estimators. However, their proposal does not encompass the estimation procedure currently adopted in some national forest inventories. Hence, the present paper aims to introduce a unifying perspective for both methods. Moreover, it is shown that the two procedures give rise to coincident estimators for almost all the usual field applications. Finally, some strategies for efficient segmented-transect replications are considered.

Keywords:

inclusion region

linear homogeneous estimator

replicated design

Monte Carlo integration

Some comments on design-based line-intersect sampling with segmented transects

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