biomass est. in thinnings

• To: forest@nic.funet.fi
• Subject: biomass est. in thinnings
• From: warilaj@ccmail.orst.edu
• Date: Thu, 01 Sep 1994 04:58:32 +0300
• Content-Transfer-Encoding: 7BIT

          Dear forest-netters,

          I am attempting to estimate the amounts of organic matter
          (biomass) to be removed from the site in a commercial
          thinning study, including stemwood, branches and foliage.

          In part, the thinnings will be conducted according to
          typical standards, involving removal only of the
          merchantable boles, to 4" tops for sawlogs and to 2" tops
          for pulpwood.  However, a yard-top-with-last-log
          prescription will be applied in some cases.

          I have been successful in locating information describing
          biomass of total components (foliage, branches, bark, stem),
          and information describing weights of unmerchantable tops.
          I have not, however, come across a satisfactory way of
          separating out that portion of the crown (foliage, branches
          and bark) that would be yarded out with the top.

          I would appreciate input from anyone out there who might be
          aware of approaches that have been taken or might be taken
          to the same or similar questions.

          Thanks in advance.

          James Warila
          Faculty Research Assistant
          Dept. Forest Resources
          Oregon State University

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