|
|||||
|
|
| 新疆阿尔泰山小东沟北坡植物多样性沿海拔梯度分布格局 | |
| 引用本文： | 井学辉,臧润国,丁易,张炜银,张新平,白志强,郭仲军.新疆阿尔泰山小东沟北坡植物多样性沿海拔梯度分布格局[J].林业科学,2010,46(1). |
| 作者姓名： | 井学辉 臧润国 丁易 张炜银 张新平 白志强 郭仲军 |
| 作者单位： | 1. 河北省承德市环境保护局,承德,067000;中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态与环境重点实验室,北京,100091 2. 中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态与环境重点实验室,北京,100091 3. 新疆林业科学研究院森林生态研究所,乌鲁木齐,830000 |
| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金(CAFRIF200716,CAFYBB2007040);;国家林业局天山森林生态定位站开放基金资助 |
| 摘 要： | 分析新疆阿尔泰山小东沟北坡植物多样性随海拔梯度的变化规律。结果表明:小东沟山区总体上物种种类简单,物种丰富度指数和Shannon-Wiener多样性指数均表现为:乔木层灌木层草本层;乔木层和灌木层的物种丰富度和Shannon-Wiener多样性指数均沿海拔上升表现为先升高再降低的单峰趋势,即中间高度膨胀,且多样性峰值均出现在海拔1600～1800m处;草本层的物种丰富度和Shannon-Wiener多样性指数均沿海拔升高,略微有所上升,变化不明显;乔、灌、草总的物种丰富度和Shannon-Wiener多样性指数沿海拔上升均呈现先增加后降低的单峰趋势。针阔叶混交林具有较高的物种多样性,从而使海拔1600～1700m处出现乔木层、灌木层及总的物种多样性峰值。随海拔升高,林分郁闭度减少,从而使得林下草本多样性有所增加。 |
| 关 键 词： | 北坡 海拔梯度 物种多样性 小东沟 |
Distribution Pattern of Species Diversity along Altitudinal Gradient in the Northern Slope of Xiaodonggou in Altai Mountains,Xinjiang |
|
| Jing Xuehui,Zang Runguo,Ding Yi,Zhang Weiyin,Zhang Xinping,Bai Zhiqiang,Guo Zhongjun.Distribution Pattern of Species Diversity along Altitudinal Gradient in the Northern Slope of Xiaodonggou in Altai Mountains,Xinjiang[J].Scientia Silvae Sinicae,2010,46(1). | |
| Authors: | Jing Xuehui Zang Runguo Ding Yi Zhang Weiyin Zhang Xinping Bai Zhiqiang Guo Zhongjun |
| Institution: | 1.Chengde Bureau of Environmental Protection of Hebei Chengde 067000/a>;2.Key Laboratory of Forest Ecology and Environment of State Forestry Administration Institute of Forest Ecology/a>;Environment and Protection/a>;Chinese Academy of Forestry Beijing 100091/a>;3. Institute of Forest Ecology/a>;Xinjiang Academy of Forestry Science Urumqi 830000 |
| Abstract: | Patterns of species diversity along the altitude on the northern slope of Xiaodonggou in the Altai mountains were explored.The results indicated that:the vegetation structure and composition were generally simple,and the diversity was low.Diversity order of the following three life forms was:trees < shrubs < herbaceous plants.Diversities of trees and shrubs exhibited a unimodal pattern with increasing altitude,peaking at the range of 1 600 m-1 800 m.The herbaceous plant diversity exhibited a monotonically i... |
| Keywords: | northern slope altitudinal gradient species diversity Xiaodonggou |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |