文献类型：期刊文献

中文题名：西藏乌柳群落特征

英文题名：Characteristics of Salix cheilophila Communities in Tibet

作者：朱雪林[1] 黄清麟[2] 张超[2,3] 普布顿珠[1] 旦增[1]

第一作者：朱雪林

机构：[1]西藏自治区林业调查规划研究院,西藏拉萨850000;[2]中国林业科学研究院资源信息研究所,国家林业局林业遥感与信息技术重点实验室,北京100091;[3]西南林业大学资源学院,云南昆明650224

年份：2011

卷号：29

期号：1

起止页码：116-122

中文期刊名：山地学报

外文期刊名：Journal of Mountain Science

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：中国林科院中央级公益性科研院所基本科研业务费专项资金重点项目“西藏灌木林资源评价与遥感监测技术研究(CAFYBB2007001)”和“西藏森林生态安全屏障功能评估与生态补偿机制研究(CAFYBB2008035-1)”资助~~

语种：中文

中文关键词：西藏;乌柳;群落;结构;特征

外文关键词：Tibet; Salix cheilophila; community; structure; characteristics

分类号：S718

摘要：以"一江两河"流域为研究区,通过对西藏乌柳群落的典型地块设置11个标准地进行调查,分别从主要优势树种表现、物种组成、物种多样性、林分生长、地径结构、树高结构和树高-地径曲线等方面,分析了西藏乌柳群落的主要群落学和测树学特征。研究结构表明,1.西藏乌柳群落物种组成较为单一,群落中的物种数一般为1～4种,优势树种在群落中所占的比例较大,均大于85%;2.地径主要分布于5.0 cm以下,树高分布于1.0～5.0 m间,树高-地径服从二次曲线分布;3.由于群落物种组成较为单一,香农物种多样性指数均<1,SW和S、E的变化趋势大致相同,且与ED变化趋势相反。
Taking the One-River-Two-Tributaries Basin as study area,the inventory was carried out,and the characteristics of Salix cheilophila communities in Tibet were analyzed.The research was carried out on the aspects of important value of dominant species,species composition,species diversity,growth status of stand,ground diameter and height distributions,and curve of height-ground diameter.The results showed that：（1） Species composition in Salix cheilophila communities was single.The species quantity was commonly from 1 to 4.Dominant species in the communities occupied a main proportion,and as a result,stable original or secondary communities with single dominant specie were dominated;（2） Being affected by the plateau environment and species ecology characteristic,the ground diameter distributed below 5.0 cm,and the height distributed between 1.0 m and 5.0 m.The quadric function curve was fit to height-ground diameter;（3） The species richness and diversity were at low level.Shannon-Wiener diversity index（SW）,species richness（S） and species evenness（E） showed the same trend which was opposite to ecological dominance（ED）.