
Where NTPA = Number of logs per Acre

Where
![Smalian's = {0.0027271*[DL^2 + DS^2)*L]}](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_vNxnkP13NBoT-36ZrEZxdmN0OaRmGmiN5axE6ltaPcPPowJunSrTEawoIJRMsaCOMa8WaDC8k_MFlnmAoITuuTO6k_UVVKFFba4Z94--KvT7lQ6NZStrQV-CcQcPqZZFwM4aDz9D_17VY3Kka0nFKLwi6PQzObmHehDf8=s0-d)
DL = Diameter Large End (DBHI*0.1)
DS = DL - [(0.125 inches per foot)*(L feet)]
L = Log Length for down logs (PRHT)
#logs/acre = (NTPA*0.01)
Log Wieght/acre (in Tons)
![Tonsacre = \sum {[Smalians * Adj Dens * Decay Factor]/2000*[NTPA*0.01]}/PSTR](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_shBAhMeWV7w7i4gaY0bYdQT9-sbCVx9RR5Sg9_90WgmN-Qjk2_kXseCqyJThVpZWamvith87s1nHMZoVvHDbPTiRu47Dre1e2s7X9EzR70fLiCBLmUlx4FM3TQV2IorGTX_S9neBjpnJiBUakfZbbSwnd05qns5naikOgoIFuRII-77hsmKqTT9b0zLpRQYQTON3G0JrK4Mq9Me5vJVdQTfg=s0-d)
Where Adj Dens is adjusted density faCtor for species
DENSITY = New Object() {30, 30, 0, 0, 28, 25, 0, 0, 0, 0, 28, 28, 25, 27, 28, 0, 0, 0, 28, 0, 28, 28, 28, 28, 28, 28, 28, 30, 29, 29, 27, 27, 25, 28, 27, 0, 27, 0, 27, 0, 28, 29, 0, 0, 30, 28, 29, 29, 0, 0, 25, 25, 25, 25, 0, 0, 30, 30, 30, 0, 29, 29, 29, 29, 29, 29, 0, 28, 0, 33, 28, 42, 26, 28, 24, 33, 42, 24, 35, 35, 35, 35, 35, 35, 35, 35, 35, 30, 30, 0, 0, 28, 25, 0, 0, 0, 0, 28, 28, 25, 27, 28, 0, 28, 28, 28, 0, 28, 28, 28, 28, 28, 28, 28, 30, 29, 29, 27, 27, 25, 28, 27, 0, 27, 27, 27, 0, 28, 29, 0, 0, 30, 28, 29, 29, 0, 0, 25, 25, 25, 25, 0, 0, 30, 30, 30, 0, 29, 29, 29, 29, 29, 29, 0, 28, 0, 33, 28, 42, 26, 28, 24, 33, 42, 24, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 24, 40, 35, 28, 35, 40, 40, 35, 40, 35, 0}
Decay Factor is decay class factor for log
Decay Class Decay factor
1 1.00
2 0.85
3 0.70
4 0.55
5 0.44
Volume per Acre in Cubic Feet (Down logs and snags only)
![Ft^3/A = 0.0027271 * [DL^2 + DS^2] * L * NT/A](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_ttdKZFLg6GMPU2q3ZDKS3zFxrP31huGbGP04xwuKdQawZ8n5htx661VbwrJVrbY4TtKlwbfY1G-nDJF-NLFx3y5pMlaIEpmiJds-Fc82and98UgcO2rFei7K1_N4RRXiM2Xea5I4Nw6C8pOxWiwszCAHAamv3AbzvXkAlpHlY=s0-d)
Where
DL = Diameter Large End (DBHI*0.1)
DL = [DBHI*0.1 + (0.125 inches/ft)*4.5ft] for snags
DS = DL - [(0.125 inches per foot)*(L feet)]
L = Log Length or height for down snags (PRHT)
NT/A = #logs/acre = (NTPA*0.01)