Abstract: It is essential to improve the estimation of carbon storage in stands for assessing the forest carbon sink at local and regional scales. In this study, the carbon storage of tree biomass, forest floor and soil (0-100 cm) in three Ligustrum lucidum plantations in Shanghai OutLoop Forest Belt were investigated, and allometric equations for different organs such as root, trunk, bark, branch and foliage were established. The results showed that there was a good relationship between biomass and the diameter at breast height for the allometric equations of individual trees and different organs (R²>0.9, P<0.01). Total carbon storage of the L. lucidum plantation ecosystem was 169.89 t·hm^-2, of which the carbon storage amounts of tree biomass, forest floor, and soil (0-100 cm) were 10.48, 1.54 and 157.7 t·hm^-2, respectively. In the tree biomass carbon storage of L. lucidum stands, the trunk, branch, root, foliage and bark proportionally accounted for 40%, 20%, 15%, 11% and 4%, respectively.

Key words: gene expression, reactive oxygen, ozone, Ginkgo biloba