Abstract：Based on the vegetation carbon content rate and soil organic carbon (SOC) content that determined, we studied the carbon density and storage dynamics of forest ecosystem in the Pearl River Delta of low subtropical China. The results showed that the average vegetation content rate was ranging from 35.81% to 51.60%, and the average carbon content rate weighted by biomass was ranging from 46.57% to 52.45%. SOC content and its significance were all at the highest level in soil surface layer, and they all faded away with the deepening of soil profile. Moreover, vegetation content rate and soil organic carbon (SOC) content were all in order of broad-leaved forest> mixed conifer and deciduous forest > conifer forest in the same age forest, while mature forest>middle-age forest>young forest in the successive forest. The carbon density range of vegetation and soil were 23.58~139.18t/hm2and 55.54~151.16t/hm2respectively, and the allocation ratio of soil was higher than that of vegetation, but the allocation ratio of soil decreased with the rise of forest age class. During the years of 1989~2003, the total carbon storage and carbon density of forest ecosystem in the Pearl River Delta all increased, which indicated that, during the rapid development period of reform and opening-up, because of increase of biomass, forest ecosystem in the Pearl River Delta played an important role on accumulating carbon sink, and the accumulating function of carbon sink is being promoted step by step.
张修玉, 许振成, 曾凡棠, 胡习邦, 韩秋萍. 珠江三角洲森林生态系统碳密度分配及其储量动态特征[J]. 中国环境科学, 2011, 31(增刊): 69-77.
ZHANG Xiu-Yu, XU Zhen-Cheng, ZENG Fan-Tang, HU Xi-Bang, HAN Qiu-Ping. Carbon density distribution and storage dynamics of forest ecosystem in Pearl River Delta of low subtropical China. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(增刊): 69-77.
