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Table 5 Biomass equations used, exemplified with parameters for beech (Fagus sylvatica)

From: How can forest management increase biomass accumulation and CO2 sequestration? A case study on beech forests in Hesse, Germany

Above-ground biomass (kg), dbh > 10 cm
y = b0*eb1(dbh/(dbh + k1))*eb2(d03/(d03 + k2))*hb3
y = 0.16787*e6.25452*(dbh/(dbh + 11))*e6.64752*(d03/(d03 + 135))*h0.80745
Above-ground biomass (kg), dbh < 10 cm and h > 1.3 m
y = b0 + ((bs − b0)/ds2 + b3(dbh – ds))*dbh2
y = 0.09644 + ((33.22328 – 0.09644)/10 2 + 0.01162*(dbh – 10))*dbh2
Below-ground biomass (kg)
y = b0*dbhb
y = 0.018256*dbh2.321997
Height function
h = 1.3 + 1(a + b/d1.3)−3
h = 1.3 + 1(0.29397 + 1.76894/d1.3)−3
Diameter in 30% tree height, d03
d03 = c0*d1.3c1
d03 = 0.84014*d1.30.9897