Comparison of two diameter-based measures for estimation of stand carrying capacity

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  • Author(s): Yang, Sheng-I; burkhart, Harold E.
  • Date: 2018
  • Station ID: Proceedings - Paper (PR-P)-SRS-2018


Diameter-based maximum size-density measures are useful to estimate stand basal area carrying capacity. In this study, we used an alternate formulation of relative spacing by replacing average dominant tree height with quadratic mean diameter, denoted diameter-based relative spacing (RSD). We compared the efficacy of RSD and Reineke’s (1933) self-thinning rule for estimation of stand basal area carrying capacity. Data from a loblolly pine spacing trial, with planting density ranging from 6727 to 747 trees/ha, were used to estimate the coefficients of both measures. RSD largely eliminated the undesirable property of Reineke’s self-thinning rule, which overestimated the maximum stand basal area when stands were young.

  • Citation: Yang, Sheng-I; burkhart, Harold E. 2018. Comparison of two diameter-based measures for estimation of stand carrying capacity. In: Kirschman, Julia E., comp. 2018. Proceedings of the 19th biennial southern silvicultural research conference. e-General Technical Report SRS- 234. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 444 p. ( pages 61-63).

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