Through large sums of survey outdoor, the content of the 2^nd generation Chinese fir plantation in Huitong County were stud- led in the paper. Using the dry method to test the carbon content with the testing material of the following: the trunks (peeled), bark, branches, leaves, root samples of Chinese fir, and the branches (leaves) and root samples of shrubs, and the on the ground and un- derground part of herbaceous plants, and the branches, leaves, fruit litter and dead roots in the forest. The results are as followed: the rank of carb...