A generalized algebraic difference approach allows an improved estimation of aboveground biomass dynamics of Cunninghamia lanceolata and Castanopsis sclerophylla forests

Table 1 Structural characteristics of C. lanceolata and C. sclerophylla stands in 2013 (mean ± standard error)

Stands	Age at bottom discs (years)	Mean dbh (cm)	Mean H (m)	N (stems ha⁻¹)	BA (m² ha⁻¹)	LAI (m² m⁻²)	Volume (m³ ha⁻¹)	Mean biomass (Mg ha⁻¹ year⁻¹)
C. lanceolata	17	16.2 ± 0.3a	11.6 ± 0.1a	1553 ± 200b	33.4 ± 3.8a	5.4 ± 0.6a	200.1 ± 22.7a	6.0 ± 0.7b
C. sclerophylla	52	19.0 ± 0.4a	11.4 ± 0.2a	990 ± 77a	30.1 ± 1.5a	6.9 ± 0.4b	202.3 ± 10.2b	3.0 ± 0.0a

dbh is diameter at breast height (1.3 m); H is the mean height of all trees; N is the number of trees per hectare; BA is the stand basal area; LAI is the leaf area index. Different letters in the same column indicate significant differences (p < 0.05, ANOVA). Volume of C. lanceolata is calculated from the compatible taper function (Tang et al. 2016), while volume of C. sclerophylla is calculated by the allometric models derived from the felled trees

ISSN: 1297-966X