西南林业大学学报2016，Vol.36Issue(5)：45-51,7.DOI:10.11929/j.issn.2095-1914.2016.05.008
亚热带典型森林凋落物及细根的生物量和碳储量研究
Relationships Between Biomass and Carbon Storage of Litter and Fine Root in Subtropical Typical Forests
摘要
Abstract
The decomposition and turnover of fine root and litter, which were the two key processes for model-ing and forecasting soil carbon sequestration in forest ecosystem. In order to understand the differences and interac-tions between biomass and carbon storage of fine root and litter, a field-based study in 110 plots of evergreen broad-leaf forest, including Cunninghamia lanceolata plantation, Pinus massoniana plantation and Phyllostachys edulis plantation was conducted. The results showed that the highest litter biomass was in Cunninghamia lanceolata planta-tion, at (4. 415 ± 0. 39) t/hm2, while the lowest was in Phyllostachys edulis plantation, at (2. 918 ± 0. 31) t/hm2, and the significant difference was found between Phyllostachys edulis plantation and other three forests;the litter car-bon storage of Phyllostachys edulis plantation was the lowest, at (1. 176 ± 0. 260) t/hm2, and it was significantly low-er than other forests, while the highest carbon storage of litter was found in evergreen broad-leaf forest at ( 1. 725 ± 0. 16) t/hm2;the biomass and carbon storage of fine root among the four types of forests were significantly different. Moreover, the dead and alive fine root biomass had obvious dissimilarity in different layers of same type of forest or plantation;according to the fine root ratios of dead/alive, the turnover rates of fine root in evergreen broad-leaf for-ests was faster than that in coniferous forests ( Cunninghamia lanceolata and Pinus massoniana plantation) .关键词
细根/凋落物/生物量/碳储量/亚热带典型森林Key words
fine root/litter/biomass/carbon storage/subtropical typical forest分类
农业科技引用本文复制引用
吴春生,刘苑秋,魏晓华,李小东,刘亮英,郭晓敏,欧阳勋志,莫其锋..亚热带典型森林凋落物及细根的生物量和碳储量研究[J].西南林业大学学报,2016,36(5):45-51,7.基金项目
中国科学院战略性先导科技专项项目( XDA05050205)资助。 （ XDA05050205）
