WOODLOT for Windows 2.1 - Reference Manual

Appendix 3 - Site Indices (Source: "VDYP Batch Application User Guide Version 6.4" December 4,1996, BC MOF, Resources Inventory Branch) The following table should be used as a reference if you do not have specific site indeces for use in VDYP: SPECIES REGION SITE CLASS G SI M SI P SI L SI AC PROV 26 18 9 3 AT PROV 27 20 12 4 B, BA, BG COASTAL 29 23 14 5 B, BA, BG INTERIOR 18 15 11 5 BL PROV 18 15 11 5 CW, YC COASTAL 29 23 15 6 CW, YC INTERIOR 22 19 13 5 DR PROV 33 23 13 6 E, EP, EA PROV 27 20 12 4 FD COASTAL 32 27 18 7 FD INTERIOR 20 17 12 5 H, HW, HM COASTAL 28 22 14 5 H, HW, HM INTERIOR 21 18 12 4 L, LW, LA, LT PROV 20 16 10 3 MB PROV 33 23 13 6 PL, PF, PJ, PA PROV 20 16 11 4 PW PROV 28 22 12 4 PY PROV 17 14 10 4 S COASTAL 28 21 11 4 SS PROV 28 21 11 4 S INTERIOR 19 15 10 5 SE, SW, SB PROV 19 15 10 5 Notes: Site class/site index relationships were calculated as follows: determine mid-point height at 100 years total age for each species and site class using Table 2 of Forest Inventory Report No. 1 (1981) 'Site index equations and curves for the major tree species in British Columbia'. Mid-point heights for the 'G' site classes were set at 1.5 m above the 'G'-'M' class break points; mid-point heights for the 'L' site classes were averages between the 'P'-'L' class break points and zero. calculate site index for each mid-point height at 100 years total age using the current, MoF approved, site index functions and round to the nearest meter to be consistent with FIP file format requirements.

by Enfor Consultants Ltd. Last Updated March 1999