江西农业大学学报Issue(6)：1275-1283,9.DOI:10.13836/j.jjau.2014204
江西武夷山南方铁杉群落分类及更新能力评价
A Community Classification of Natural Forest of Tsuga tchekiangensis and Its Regeneration Capacity
摘要
Abstract
There have been some controversies over the issue about the natural regeneration of Tsuga tchekiangensis,a quantitative classification of T.tchekiangensis was conducted with the TWINSPAN and DCCA methods,and its population regeneration capacity was evaluated based on the systematic investigation of its communities in Jiangxi Wuyishan National Nature Reserve.The result showed that:(1) 30 permanent sample plots,with 210 plant species belonging to 68 families and 112 genera,could be divided into 11 types of commu⁃nity according to the species important value;(2) soil factors (depth,nutrient,etc ) had more effects on the spatial distribution of T.tchekiangensis community than spatial ones (elevation,slope position,etc ),the former contributed 41.94 %,the latter did 22.86 %,and their coupling contributed 7.65 %;(3) T.tchekiangensis re⁃generated best in these forests with deciduous species dominant in canopy and understory,followed by the for⁃ests with evergreen trees in canopy and deciduous trees in understory,and almost failed to regenerate in the for⁃ests with evergreen trees in canopy and understory.These findings indicate that T.tchekiangensis,a regenerative species,could exist with more tree species to form various communities, and the community composition and structure rather than spatial or soil factors determine the regeneration capacity of T.tchekiangensis.Dominance of evergreen and shade-tolerance trees,and invasion of bamboo are the main reasons for T. tchekiangensis to fail to regenerate.So,the effective measures required to protect and restore this rare species are to modify the struc⁃ture of communities in which T. tchekiangensis live under good light conditions for its seedlings and saplings, and to suppress invasion of bamboo.关键词
南方铁杉/群落分类/更新能力/江西武夷山自然保护区Key words
Tsuga tchekiangensis/community classification/natural regeneration capacity/Jiangxi Wuyis-han National Nature Reserve分类
生物科学引用本文复制引用
杨清培,钟安建,金志农,程松林,裘利洪,施建敏,郭英荣,陈伏生,邹思成..江西武夷山南方铁杉群落分类及更新能力评价[J].江西农业大学学报,2014,(6):1275-1283,9.基金项目
国家科技支撑计划项目（2012BAC11B02）和江西武夷山国家级自然保护区管理局发展项目 （）
