Table 1.
Tree variables and biomass of each component of C. equisetifolia in different age groups.
Fig 1.
Proportion of the tree biomass from the trunk, the branch, the leaf, and the root in young, middle-aged, and mature forests.
Table 2.
Parameter estimates and model evaluation statistics of each biomass model for the young forest.
Table 3.
Parameter estimates and model evaluation statistics of each biomass model for the middle-aged forest.
Table 4.
Parameter estimates and model evaluation statistics of each biomass model for the mature forest.
Fig 2.
The relationship between the predicted biomass and observed biomass for four components in young forest.
Fig 3.
The relationship between the predicted biomass and observed biomass for total biomass in young, middle-aged, and mature forests.
Fig 4.
Q-Q plot of the total biomass estimation for young forest.
Fig 5.
The relationship between the predicted biomass and observed biomass for four components in middle-aged forest.
Fig 6.
Q-Q plot of total biomass estimation for middle-aged forest.
Fig 7.
The relationship between the predicted biomass and observed biomass for four components in mature forest.
Fig 8.
Q-Q plot of the total biomass estimation for the mature forest.
Table 5.
Parameter estimates of the selected models for different components by age groups using SUR method.