黄土高原子午岭柴松林群落组成及群落结构研究  

Community Composition and Structure of Pinus tabulaeformis f.shekannesis Forest in Ziwuling Region

作　　者：曹旭平[1] 薛瑶芹[2] 赵峰 张文辉[2] 周建云[2] 

机构地区：[1]延安市黄龙山林业局,陕西黄龙715702 [2]西北农林科技大学西部环境与生态教育部重点实验室,陕西杨陵712100 [3]兰州市园林科学研究所,甘肃兰州730070

出　　处：《西北林学院学报》2011年第1期1-7,共7页Journal of Northwest Forestry University

基　　金：国家"十一五"科技支撑计划项目(2006BAD09B03);中国科学院西部行动计划项目(KZCX22XB2205)

摘　　要：通过样地调查,对陕西子午岭的天然柴松林的植物组成和群落结构进行了研究。结果表明:(1)柴松群落中,共有52科120属162种种子植物,可划分为12个类型和9个变型,北温带成分最多(51属),占总属数的49.51%,热带植物成分占一定比例;(2)柴松群落可划分为5个群落类型:柴松+辽东栎-水栒子-苔草群落;柴松-虎榛子-苔草群落;柴松-水栒子-苔草群落;柴松-黄蔷薇-苔草群落;柴松-绣线菊-苔草+野棉花群落;(3)不同群落类型的物种组成和林分结构有所不同,但以柴松为优势种所构建的群落环境有一定的相似性。Based on the detailed plot investigation and plant specimen collection carried out in Ziwuling ridge, Shaanxi Province, the species composition and community structure of entire Pinus tabulaeformis f. shekannesis community and those in different community types which located in different habitats were systematically studied. The results showed. （1） there were 162 species of seed plants in P. tabulaeformis f. shekannesis community, belonging to 120 generas, 52 families, and among them Rosaceae, Leguminosae, Compositae, Gramineae and Labiatae included more than 5 genera. The florae of seed plants presen- ted a diversified and complicated composition, including 12 types and 9 variants, among which the north temperate distribution composition were significantly dominant, accounting for 49.51% in total genera, and the tropic elements took some proportions; （2） based on the values of importance of the species P. tabulaeformis f. shekannesis community in Qiaobei forest area could be divided into 5 community types. P. tabulae f ormis f. shekannesis ＋ Quercus wutaishannica -- Cotoneaster multi florus -- Carex sp. Community, P. tabulaeformis f. shekannesis-- Ostryopsis davidiana -- Carex sp. Community, P. tabulae f ormis f. shekannesis--Cotoneaster multi florus--Carex sp. Community, P. tabulae f ormis f. shekanne- sis--Rosa hugonis -- Carex sp. Community, and P. tabulaeformis f. shekannesis-- Spiraea salici folia -- Carex sp. @Anemone upehensis Community; （3） species composition and stand structure of different community types were different and the community environment, in which P. tabulaeformis f. shekannesis was dominant species, showed some similarity.

关 键 词：柴松 群落类型 区系组成 群落结构 

分 类 号：S791.259[农业科学—林木遗传育种] Q948.157[农业科学—林学]