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Observer Variation in Tree Diameter Measurements

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Abstract:

Tree diameter breast height (dbh) was measured on 879 permanently marked trees by two experienced professional foresters. Error rates were approximately equal between observers. Measurement error rates of 5% of tree diameter or greater may be expected in dbh measurements on as many as 5% of measured trees. West. J. Appl. For. 20(2):134–137.

Keywords: Diameter breast height; Douglas-fir; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; measurement error; natural resource management; natural resources; spruce; subalpine fir; western larch

Document Type: Regular Article

Affiliations: 1: Alderspring Ecological Consulting PO Box 64 Tendoy ID 83468 2: Retired Rocky Mountain Research Station USDA Forest Service PO Box 8089 Missoula MT 59807

Publication date: April 1, 2005

More about this publication?
  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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