APPENDIX I — 



Regression Equations for Present Biomass 



The following logarithmic equations were used to estimate foliage, wood, and total 

 above-stump biomasses of all unweighed trees taller than 1 m on the Sweetwater plots: 



(InF) = .486 (InD) + .470 (InH) + 1.287 (InC) + .396 (InK) - 5.504 

 (InW) = 3.167 (InD) + 2.827 (InH) - .408 (InD) • (InH) 



+ .120 (InD) • (lnC x ) - 14.141 



(InM) = 2.416 (InD) + .463 (InH) + 1.776 (InC ) 



.243 (InD) • (lnC x ) - 8.429 



(eq. 3) 

 (eq. 4) 



(eq. 5) 



in which: 



F = foliage biomass = ovendry mass of foliage (kg) 



W = wood biomass = ovendry mass of wood (bark excluded) larger than 76 mm 

 diameter (kg) 



M = total above-stump biomass = total ovendry mass above a 15 cm stump (kg) 

 D = diameter of outside bark at stump height (cm) 

 H = total height of tree (dm) 

 C = maximum crown diameter (dm) 



C = average crown diameter (dm) --the geometric mean of the maximum crown diameter 



and the crown diameter perpendicular to the maximum. 

 K = foliage class as defined in the methods section. 



The coefficients of determination (R 2 ) are 0.936 for foliage, (eq. 3), 0.991 for 

 wood (eq. 4), and 0.988 for total (eq. 5). The standard errors of estimate are 0.267, 

 0.163, and 0.148, respectively. 



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