|
| 阿勒泰小克兰河上游植物群落的垂直分布格局及环境分析 |
| Vertical Distribution and Environmental Analysis of Plant Communities in Upper Reaches of Crane River in Aletai |
| |
| DOI： |
| 中文关键词: 群落特征 植物多样性 海拔 阿勒泰小克兰河上游 |
| 英文关键词: Community characteristic Plant diversity Altitude Upper reaches of Crane river in Aletai |
| 基金项目:国家自然科学基金资助项目(41461045)；新疆维吾尔自治区青年科技创新人才培养工程——优秀青年科技创新人才培养基金资助项目(2013721032);国家科技基础性工作专项基金资助项目（2015FY110500-16） |
|
| 摘要点击次数: 788 |
| 全文下载次数: 71 |
| 中文摘要: |
| 通过对阿勒泰小克兰河上游的植被调查，并运用植物多样性指数计算及冗余分析，探究植物随海拔梯度的变化规律。结果表明：在各海拔梯度内优质牧草均占优势地位，在海拔1 050 m～1 450 m和2 150 m～2 550 m 分布着草本群落，1 450 m～2 150 m乔、灌、草均有分布；随着海拔上升，Simpson、Shannon Wiener多样性指数单调微增，Simpson优势度指数单调递减，Bray Curtis指数和Margalef指数呈单峰分布，Pielou指数、S Φrenson指数、Morisita Hom指数呈“U”型变化；冗余分析发现海拔、坡向是影响植物群落组成及分布的主要因子。 |
| 英文摘要: |
| Through the vegetation investigation in the upper reaches of Crane river in Aletai， the change of plant with altitude gradient was explored by plant diversity index and redundant analysis. The results showed that high quality forage grass was dominant in each altitude gradient. Herbaceous communities distributed in the altitude from 1 050 m to 1 450 m and 2 150 m to 2 550 m. Arbor， shrub and grass distributed in the altitude from 1 450 m to 2 150 m. As altitude increased， Simpson index and Shannon Wiener index increased slightly and monotonically， Simpson dominance index decreased monotonically， Bray Curtis index and Margalef index showed unimodal distribution， Pielou index， S Φrenson index and Morisita Hom index showed a “U”curve change. Elevation and aspect were the main factors affecting the composition and distribution of plant communities by redundant analysis. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
