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Research article - Peer-reviewed, 2002

Correction for slope in point and transect relascope sampling of downed coarse woody debris

Ståhl, Göran; Ringvall, Anna; Gove, Jeffrey H.; Ducey, Mark J.

Abstract

Two different possibilities to correct for bias due to slope are presented. The first one involves using a slightly modified relascope device and making a measurement of the angle of inclination of each sampled object. The second involves applying correction factors based on the steepness of the terrain in the area surveyed. However, it is shown that moderate slopes cause only limited bias and in such cases there is little need to adjust the measurement procedures or apply correction factors.

Keywords

angle gauge sampling; bias; Bitterlich sampling; correction factor; forest inventory; line intercept sampling

Published in

Forest Science
2002, Volume: 48, number: 1, pages: 85-92
Publisher: SOC AMER FORESTERS

      SLU Authors

    • Ståhl, Göran

      • Department of Forest Resource Management and Geomatics, Swedish University of Agricultural Sciences
      • Hedström Ringvall, Anna

        • Department of Forest Resource Management and Geomatics, Swedish University of Agricultural Sciences

      UKÄ Subject classification

      Forest Science

      Permanent link to this page (URI)

      https://res.slu.se/id/publ/41901