Note: Equation form is\(ln(Y)=ln(c)+a\bullet ln(X_{1})+b\bullet ln(X_{2})\), where Y
is dry mass (g) of shrub component; a, b and ln(c) are equation
parameters with their respective standard error S.E.(a, b, ln(c));
X1 and X2 are equation variables with
crown area (C), basal diameter (D), height (H), or age (A).
R2 (adj): is the adjusted coefficient of
determination; p-value is the significance of regression; AIC is the
Akaike information criterion, and RE is the relative error.
Figure legends
FIGURE 1 Partitioning of biomass among different shrub
components in age class 0-20, 21-30, and 31-50 years, respectively.
n=12, 31 and 13 individuals for age class 0-20, 21-30, and 31-50 years,
respectively.
FIGURE 2 Relationship between above- and below-ground biomass.
FIGURE 3 Biomass partitioning of S. passerinalog10-transformed data.
Note: (a) above-ground biomass (MA) vs. root biomass
(MR); (b) branch biomass (MB) vs.
MR; (c) foliage biomass (ML) vs.
MR and (d) ML vs. MB.
Each circle on the graph represents one shrub.
FIGURE 4 Scaling exponents of different biomass partitioning
relations for three age classes.
Note: Small letters indicate significant difference among age class
(P <0.05). The error bars indicate the standard errors
of the scaling exponent per age class.