生态环境学报2018，Vol.27Issue(3)：424-431,8.DOI:10.16258/j.cnki.1674-5906.2018.03.004
南亚热带森林群落演替过程中结构多样性与碳储量的变化
Dynamics of Structural Diversity and Carbon Storage along A Successional Gradient in South Subtropical Forest
摘要
Abstract
The aim of this study is to study the relationships among species diversity, community structure and vegetation carbon sequestration during community succession in southern subtropical forest and provide a theoretical basis for natural transformation of Pinus massoniana plantation. A Pinus massoniana forest (PF), coniferous and broad-leaved mixed Forest (MF), and monsoon evergreen broad-leaved forest (BF) along a succession gradient in southern subtropical forest in Dinghushan Biosphere were selected, we analyzed the trait of species, structural diversity and compared the dynamic of the common species and new species during forest succession based on data from the sample plots survey. The results showed that: (1) The species richness, community structure diversity and carbon storage increased with forest succession, the increase extent of species richness was greater than that of carbon storage. (2) Based on three different diameter at breast height (DBH) classes, small (1 cm≤DBH<10 cm), middle (10 cm≤DBH<30 cm) and large (DBH≥30 cm) diameter class during forest succession, both the individuals ratio and carbon storage ratio of the common species during PF to MF were decreased in all diameter classes. From MF to BF, the small diameter class individuals ratio of the common species during MF to BF decreased, whereas both of the common species large diameter class individuals (from 2.1% in MF to 33.4% in BF) and carbon storage ratio increased (from 7.3% in MF to 64.4% in BF) from MF to BF. And (3) the important value, individual ratio and carbon storage ratio were decreased along the south subtropical forest succession. However, new population was in the opposite direction: the important value, the individuals ratio and the carbon storage ratio were increasing with the forest succession.As the common species from MF to BF,Castanopsis chinensis and Schima superba contributed 76.3% in MF and 50.5% in BF of the total carbon storage,far more than other populations and therefore suit in Pinus massoniana plantation reconstruction to improve the species diversity, community structure and vegetation carbon storage.关键词
鼎湖山/多样性/碳储量/重要值/种群变化Key words
Dinghushan/diversity/carbon storage/important value/population change分类
农业科技引用本文复制引用
夏艳菊,张静,邹顺,唐旭利,李凤..南亚热带森林群落演替过程中结构多样性与碳储量的变化[J].生态环境学报,2018,27(3):424-431,8.基金项目
中国科学院战略性先导科技专项(XDA05050200) （XDA05050200）
