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西藏乌柳群落特征()

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《山地学报》[ISSN:1008-2186/CN:51-1516]

作者:: 朱雪林;黄清麟;张超;普布顿珠;旦增;; 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

Author(s):: ZHU Xuelin; HUANG Qinglin; ZHANG Chao; PUBU Dunzhu; DAN Zeng; 1. Institute of Forest Inventory, Planning and Research of Tibet Autonomous Region, Lhasa 850000, China;
2. Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Key Laboratory of Forestry Remote Sensing and Information Technology, State Forestry Administration, Beijing 100091, China;
3. College of Forestry, Southwest Forestry University, Kunming 650224, China

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。

Abstract:: 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).

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备注/Memo:: 收稿日期(Received date)：2010-05-11；改回日期(Accepted) : 2010-10-09。
基金项目（Foundation item）：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。\[Supposed by Basic Scientific Research Foundation for Central Non-profit Research Institutes of Chinese Academy of Forestry（CAFYBB2007001 and CAFYBB2008035-1）.\]
作者简介（Biography）：朱雪林（1972-），男，四川广安人，副研究员，主要从事森林可持续经营研究。\[Zhu Xuelin (1972- ), male, associate professor, mainly engaged in sustainable forest management.\] E-mail：zxllsxz@163.com *
通讯作者（Corresponding Author）：黄清麟（1967-），男，福建莆田人，博士，研究员，博士生导师，主要从事森林可持续经营研究。\[Huang Qinglin (1967- ), male, Ph D, professor, mainly engaged in sustainable forest management.\] E-mail：huangql@caf.ac.cn

更新日期/Last Update: 1900-01-01