On the Field Performance of Transect Relascope Sampling for Assessing Downed Coarse Woody Debris

摘要: Abstract Transect relascope sampling is a recently proposed method for making efficient inventories of coarse woody debris on the ground. However, before can be recommended, its performance in field requires investigation. This paper presents results study which 11 surveyors tested two coniferous stands northern Sweden. The average bias introduced by was moderate under normal sighting conditions, but underestimation substantial when combining small angle with poor conditions. In all cases, differences between systematic errors individual were substantial. conclusion that transect not an appropriate demand unbiased estimates high, e.g. connection long-term monitoring, useful as first phase double or ocular-based aimed at identifying biologically valuable areas.