[1]朱登强,王军辉,张守攻 *,等.西藏色季拉山西坡急尖长苞冷杉林物种多样性及群落结构的垂直分布格局[J].西北林学院学报,2008,23(05):1.
　ZHU Deng qiang,WANG Jun hui,ZHANG Shou gong*,et al.Changes in Species Diversity and Community Structure of Abies georgei var.smithii Forest Along Altitudinal Gradients on the Western Slope of Sejila Mountain in Tibet[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2008,23(05):1.
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西藏色季拉山西坡急尖长苞冷杉林物种多样性及群落结构的垂直分布格局()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第23卷
期数:
2008年05期
页码:
1
栏目:
森林生物、生理、生态、植物、气象等
出版日期:
2008-09-30

文章信息/Info

Title:
Changes in Species Diversity and Community Structure of Abies georgei var.smithii Forest Along Altitudinal Gradients on the Western Slope of Sejila Mountain in Tibet
作者:
朱登强1; 2; 王军辉1 ; 张守攻1 *; 张建国1; 茹广欣2 ; 罗大庆3; 潘刚3
1．中国林业科学院 林业研究所、国家林业局 林木培育重点实验室，北京 100091；2．河南农业大学林学园艺学院，河南 郑州 450002； 3．西藏农牧学院 高原生态研究所，西藏 林芝 860000
Author(s):
ZHU Dengqiang1; 2;  WANG Junhui1;  ZHANG Shougong1*;  ZHANG Jianguo1;  RU Guangxin2;  LUO Daqing3;  PAN Gang3
1. Research Institute of Forestry, Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, CAF, Beijing 100091, China; 2. Forest and Horticulture College of He＇nan Agriculture University, Zhengzhou, He′nan 450002 , China; 3. Research Institute of Tibet Plateau Ecology , Linzhi, Tibet 860000, China
关键词:
急尖长苞冷杉林;  物种丰富度;  α多样;  β多样性;  群落结构
Keywords:
Abies georgei var.smithii;  species richness;  α diverse;  β diverse;  community structure
分类号:
S791.140.2
文献标志码:
A
摘要:
沿海拔梯度3 600～4 300 m设置8个样地，对西藏色季拉山西坡急尖长苞冷杉林的物种组成、物种丰富度、ShannonWiener指数（H′）、均匀度指数（E）、Jaccard指数（Cj）、Cody指数（βc）和群落结构沿海拔梯度的变化进行比较研究。结果表明：（1）在调查的8个急尖长苞冷杉林样地内共有植物58种，分属于36科53属，其中植物较多的科有蔷薇科8种、百合科5种、杜鹃花科5种、毛茛科3种、菊科3种、柏科2种、忍冬科2种、伞形科2种，其余的28科各只有1个种；（2）物种科、属、种数、Margalef 指数 (DM)与海拔存在显著的负相关性（P<0.05），在分布急尖长苞冷杉最低海拔3 600 m处出现物种丰富度的最大值；（3）多样性指数(H′)与海拔之间有极显著的负相关性（P<0.01）,并且在3 700～4 100 m之间多样性指数(H′)保持稳定；均匀度指数（E）与海拔梯度之间存在负相关性，但不显著；（4）Jaccard 指数(Cj)在海拔3 600～4 100 m随海拔的升高而升高，在生境过渡带的4 100～4 200 m之间Jaccard 指数(Cj)较低； Cody 指数（βc）随海拔的升高呈下降的趋势，但在4 000～4 100 m和4 200～4 300 m海拔区间出现2个低谷；（5）最大树高（Hmax）和最大胸径（DBHmax）与海拔之间存在显著负相关性（P<0.05）；胸高断面积之和（BA）和立木密度（N）与海拔之间存在负相关性,但不显著。
Abstract:
Changes in species diversity ,species richness, ShannonWiener index（H′）,Evenness index（E）,Jaccard（Cj）,Cody index（βc）and community structure of Abies georgei var． smithii forest on the western slope of Sejila Mountain in Tibet using data from 8 plots ,which were investigated along an altitudinal gradient from 3 600 m to 4 300 m.Major results were summarized as follows: (1) A total of 58 tree species from 53 genera in 36 families among which 8 species were Rosaceae,5 species were Liliaceae,5 species were Eriaceae,3 species were Ranunculaceae,3 species were Compositae, 2 species were Cupressaceae,2 species were Caprifoliaceae,2 species were Umblliferae ,and other 28 tree species were only one receptively. These were recorded in the 8 plots of the A. georgei var.smithii forest;(2) Number of families, genera, species and Margalef index correlated negatively with altitude（P<0.05）, with a peak at 3 600 m.(3) ShannonWiener index(H′) correlated negatively with altitude（P<0.01）,and maintained stable at the altitudes between 3 700～4 100 m, evenness （E）with altitudes, however, this trend was insignificant. (4) Jaccard index increased sharply with increasing altitude at the altitudes between 3 600～4 100 m ,and was lower between different vegetation types at the altitudes between 4 100～4 200. Cody index（βc） decreased with an increasing altitude ,but there were 2 troughs between 4 000～4 100 m and 4 200～4 300 m.(5) Maximum tree height（Hmax） and Hmax（Hmax=37 m）correlated negatively with altitude（P<0.05）；but basal area（BA）and BAmax（BAmax=5.3 m2） correlated with altitudes, however, this trend was insignificant.

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备注/Memo

备注/Memo:
收稿日期：20080225修回日期：20080312 基金项目： 西藏自治区科研院所社会公益研究专项“藏东南特有林木资源的评价与共享技术研究”。作者简介：朱登强，男，在读硕士，研究方向：森林培育。 *通讯作者：张守攻，中国林业科学研究院研究员，首席科学家。
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