Effects of successive planting on carbon storage of Chinese fir forest
连栽对杉木人工林碳贮量的影响研究

The effect of successive planting on the carbon content,carbon storage and annual net carbon fixation of Chinese fir with different ages were measured.The results show that the carbon content is not influenced significantly by the planting generation,and the carbon contents of the organs in the same generation and age are in the sequence as following:bark>leaf>stem>root>branch.Whereas there are significant differences of carbon storage and annual net fixation(among) different generation stands,which decrease with the increment of planting generation.The maximum differences of carbon storage and annual net carbon fixation are those of the middle-aged stand.Compared with the first generation of the middle-aged stand,the second generation stand and the third generation stand own decreased carbon storage,which are lower by 16.98% and 63.60%,respectively,and annual net carbon fixation which are lower by 14.01% and 25.14%.