The litter gross caloric values of leaf, branch and cone were 20.51~21.68 kJ/g, 19.63~20.21 kJ/g and 18.27~20.63 kJ/g, and the ash free caloric values of them were 21.48~22.69 kJ/g, 21.48~22.69 kJ/g and 18.91~21.49 kJ/g, respectively.

• 凋落物干重热值为小枝20.；51~21