
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_sGfBey-HNHN44w8kENnn8eFL7_z8gvhqDMvuKITgAgz7YHoJ3kOGje0t5UuFMCuRHsFl1zD8DGJ5VIYZXOM0EBmwGrc1pt-P57ZYNjgm_29hhM23TeJ1EKFPegHF9AzY3MAF9xZiBPy8WXwlkizYnToAvLl6G9vXYgp58=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_sbgmpLcua6UlbgE-n6J584vcgw4qV0kSuyz9idfhcHPY6urWch_tO5j4jeff-_UZeUDwkgKZS6bUVHQfWijuHGVwArs7s4L96x4Ryi_Bf2Kjv1KBA6aZJaQ0sWY6yZF7vrCcxZv0sMa41SbqSeVbnh0x07UbgLoA1aa4nJ3lFwrAzLJbjMxKp4Lw8vt_YhPygL0XzHhD9MQpn7HvLhXJCucQ=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_seG6suoVh513E-Zr42B4Um5uqHHjQekWTbtcfmXeBkyL-17g2jnddFZUG-xnG-JiRd1n8J8aZbtE6yRwIU4hH4Wa1cPSougK1LVi4JjQPOCW6-3zb0cxHsJIJdi1m6ya1z7THz68jP2udhVrJ80mpM3-ula-pM9tmLWB8tahc=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)