WOODLOT for Windows 2.1 - Reference Manual

Appendix 4 - VDYP Limits and Defaults (Source: "VDYP Batch Application User Guide Version 6.4" December 4,1996, BC MOF, Resources Inventory Branch) Spc Locn SI Max Age Max CC Min CC Max CC Age Min Default CC B C 30 350 10 100 50 57 C C 30 250 10 100 50 60 F C 40 250 10 100 50 61 H C 35 350 30 100 50 61 M C 35 100 60 90 50 71 S C 40 350 10 100 50 50 CT C 45 150 60 100 50 61 B I 20 250 10 100 50 42 C I 20 250 10 100 50 51 F I 25 250 10 100 50 48 H I 20 350 10 100 50 51 S I 25 350 10 100 50 46 CT I 35 150 60 100 50 61 A P 25 150 10 100 50 52 BA P 30 350 10 100 50 57 BI P 25 125 40 100 50 61 BL P 20 250 10 100 50 42 D P 35 60 50 100 50 72 L P 25 175 10 100 50 54 PL P 25 350 10 100 50 50 PW P 30 350 40 100 50 55 PY P 20 350 10 100 50 30 SS P 40 350 10 100 50 50 SW P 25 350 10 100 50 46 Notes: Locn - The location of the species: C' for the coast (FIZ A to C) I' for the interior (FIZ D to L) P' for the province (FIZ A to L). SI Max - The maximum site index used by VDYP. At higher SI's volumes and diameters are calculated using this value. Age Max - The maximum age used by VDYP. At older ages volumes and diameters are calculated using this value. Ht Max - The maximum height used by VDYP. At higher heights volumes and diameters are calculated using this value. CC Min - The minimum crown closure threshold used by VDYP. Volumes below this minimum are calculated by pro-rating between 0.0 and the volume at the minimum crown closure. CC Max - The maximum crown closure used by VDYP. At higher crown closures volumes and diameters are calculated using this value. CC Age Min - The minimum age for which the supplied crown closure will be used. Volumes and diameters are calculated using the default crown closure when the supplied age is below this minimum Default CC - the crown closure which should be used if no crown closure is available or if the supplied age is below the CC Age Min. Input variables supplied to BATCHPROCESS Variable(s) used to calculate AGE HEIGHT SITEINDEX SITECLASS SITEINDEX yes (<30 years) yes yes yes SITEINDEX yes (<30 years) yes yes no SITEINDEX yes (<30 years) no yes yes SITEINDEX yes (<30 years) yes no yes SITECLASS yes (>=30 years) yes yes yes AGE/HEIGHT yes (>=30 years) yes yes no AGE/HEIGHT yes (>=30 years) no yes yes SITEINDEX yes (>=30 years) yes no yes AGE/HEIGHT no yes yes yes SITEINDEX

by Enfor Consultants Ltd. Last Updated March 1999