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Natural Resource Biometrics Send Email Course Topics Examples Software Memo Format Report Format Schedules of Assignments Course Objectives Important University Policies Class Time and Place Prerequisites Blackboard This page is the general description of the course and suggested expectations for both the student and the expectations of the teacher. |
Stand Density IndexFormated version of this page for printingStand density index (SDI) is a relative measure of stand density the converts a stand's current density into a density at a reference size. Stand density index was present by Reineke (1933) and can be defined as:
where SDI is Stand Density index, Dq is the quadratic mean diameter. Quadratic mean diameter is the diameter of average basal area per tree. A number of maximum stand density indices have been proposed for various species. Table 1 list these stand density indices by species and source. Table 1. Suggested Maximum SDI by species and source. English units
are number of
ReferencesLong, J. N. 1985. A pratical approach to density management. Forest Chronicle 61:23-37. Reineke, L. H. 1933. Perfecting a stand density index for even-aged forests. Journal of Agricultural Research 46(7):627-638. Schnur, G. L. 1937. Yield, stand, and volume tables for even-aged upland oak forests. USDA Technical Bulletin No. 560, 87p. |
Last Updated: August 7, 2008