Developing Edition 3.0 of CIPSANON David W. Hann February 24, 2016

Differences Between Editions Edition 1.0 – Used ORGANON software and annual equations from both SWO and SMC Type I Edition 2.0 – Used software that had been modified/improved specifically for CIPS and annual equations from both SWO and SMC Type I Edition 3.0 – Uses Edition 2.0 software and SWO equations, but the SMC equations have been replaced by the PNW annual equations developed by Doug Mainwaring

All Editions of CIPSANON are composed of two DLLs: CIPSEDIT and CIPSRUN Each DLL contains equations and parameters for two versions of CIPSANON: SWO and either SMC or PNW.

The SWO version incorporates equations and parameters for 18 species with the option of using either site index or WHC20 and PPTDD41. The SMC or PNW version incorporates equations and parameters for 11 species using just site index.

CIPSEDIT.DLL utilizes 7 static and 3 dynamic species-specific equations.

Static equations in CIPSEDIT.DLL include predictors of: Maximum crown width of open grown trees - NWO DIB from DBH – SWO DBH from DIB - SWO Height-diameter for all living trees - SMC Height-to-crown-base for all living trees Dominant height Diameter at 11.8” above ground

Dynamic equations in CIPSEDIT.DLL include predictors of: Diameter increment of trees on untreated plots Probability of mortality of trees on untreated plots Change in weed cover

CIPSRUN.DLL utilizes 10 static and 17 dynamic species-specific equations.

Static equations in CIPSRUN.DLL include predictors of: Maximum crown width of open grown trees - NWO Largest crown width of stand growth trees - NWO Height to the largest crown width - NWO Crown width at any point in the crown - NWO Height-diameter for undamaged trees - SMC Height-to-crown-base for undamaged trees Maximum height-to-crown-base from CCFL - SMC Maximum height/DBH ratio from DBH - SMC Maximum size-density trajectory - SMC Bruce (1981) Dominant height Diameter at 11.8” above the ground DBH assignment when height exceeds 4.5-feet

Height Increment Diameter Increment Mortality Rate Dynamic equations in CIPSRUN.DLL include predictors of: Height Increment Diameter Increment Mortality Rate Change in Weed Cover

Height Increment Equations Bruce (1981) dominant height increment Height increment of trees on untreated plots Average of the largest 1/3 of the height increment residuals Average of the smallest 1/3 of the height increment residuals Thinning impact upon height increment - SMC Fertilization impact upon height increment - SMC Genetic improvement impact upon height increment Swiss needle cast infection impact upon height increment Weed cover impact upon height increment Can be applied to trees below breast height

Diameter Increment Equations Diameter increment of trees on untreated plots Average of the largest 1/3 of the diameter increment residuals Average of the smallest 1/3 of the diameter increment residuals Thinning impact upon diameter increment - SMC Fertilization impact upon diameter increment - SMC Genetic improvement impact upon diameter increment Swiss needle cast infection impact upon diameter increment Weed cover impact upon diameter increment

Mortality Rate Equations Probability of mortality on untreated plots Fertilization impact upon probability of mortality Can be applied to trees below breast height

Comparison of Predictions The following are a comparison of predictions from: SMC-ORGANON Edition 9.1 SMC-CIPSANON Edition 2.0 PNW-CIPSANON Edition 3.0

Comparison of Predictions Tree lists from three SMC Type I installations were used to make the projections Installation Plot Age from Seed Bruce’s Site Index 733 4 20 77.3 732 11 18 126.6 711 5 9 172.8

Comparison of Predictions Each plot was projected up to 80 years from seed and the following plot-level attributes were graphed for each plot: Total stem cubic foot volume per acre (TSCFV) Basal area per acre (BA) Number of trees per acre (TPA) Top height (H40) Stand density index (SDI)

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Comparison of Predictions

Impact of Spacing Upon Predictions Data from initial measurements of the six spacings from SMC Type III Installation 914 Bruce’s (1981) site index of 138.8 This is located at the Lewisburg Saddle of the College of Forestry’s McDonald-Dunn Research Forest

Impact of Spacing Upon Predictions

Impact of Spacing Upon Predictions

Impact of Spacing Upon Predictions

Impact of Spacing Upon Predictions

Impact of Spacing Upon Predictions

Impact of Spacing Upon Predictions

Impact of Spacing Upon Predictions