![number of logs/acre = \sum (NTPA*0.01/PSTR)](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tmL9K70aQMLFDqSJ9E9b5hAACsZ6dp70QgMY9PTZBFW70d_ojshldpNiA0U7zUG9pmTB9b7JzKBZSV07X8dfZtASh4_CbPicDoIRAKRiUP8Jy4McW2Pd_6-89ThVGZEbLFR0dNC8AKqlKQMhQWNhCnHq27=s0-d)
Where NTPA = Number of logs per Acre
![Log Volume/acre = \sum (0.0027271*(DL^2 + DS^2)*L)*(NTPA*0.01))/PSTR](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tD_aIiPjLl8v0fbm4jaB5uyXbszDSEkjuX7xEZcnRN8p7kqejoQRWy5JRXGEbh0ZPEnM6yXe4HAycF8VwvhbVG7CfeDpxzvnGt23Q9Cb33dsxhSEy7i6M3DX_2oa4zIW5CinUbmEQdVA5cTnkGkDHhGq9tDCCPHDm8C_SJUcasayeRGL6yyjDWa8lEqpvl85TS=s0-d)
Where
![Smalian's = {0.0027271*[DL^2 + DS^2)*L]}](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_vtTVFl3iCG_webhGaA7nqeP0PC8_Rvi8ThpXFgEbHo1cn0VBIzR632TAJCyOCYO-7QjASL5pmopej2uJ2OJ6ukBt6e3MOaf4dKe2ZpeLLqgMOY9ZMmLOpDtMsU9ySQVZdS8sFKGoYcLyHiadOWg9QkVjbFFlEZ3eJ4eb8=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_tVakwC-FKIQooDP3QFFhA_qJ8IXEtRZ-fFI-DBN34oeEHQw2-IcJ5FvtJ7mnZrcrUKPgf0CNvnoG9RP9wQPk96qpl7Yl6ao5OSmUFMEIIGomEK-XAzW80rqAOaNyaMVEdNJVDis_TBk047HvGQ7ViDuiz_97OcS-icSBYEISyoMDFvlarTgVy8pbWcsav_X9-KRBrffa6PiOLprVjY7-DUbQ=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_tDS7KFfrtBHMSI6bw2AGI661-YY103jFY6goIZ4GdbJEbE7TXi4klFszOhqlnYaKDjCANRG35ImJuKOdLhXrc4w8f4RyoNvvmy0_eRpeRmd6sBGAkBAFui0CxGUnbZPiTeeSrqg0qD0aPfoHy3yK2OpntpPOXDgw-53YA02MU=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)