| 青海湖地区盐地凤毛菊群落优势种群分布格局研究 |
| |
| 引用本文： | 周国英,陈桂琛,韩友吉,李锦萍,魏国良.青海湖地区盐地凤毛菊群落优势种群分布格局研究[J].中国生态农业学报,2006,14(4):38-40. |
| |
| 作者姓名： | 周国英 陈桂琛 韩友吉 李锦萍 魏国良 |
| |
| 作者单位： | 1. 中国科学院西北高原生物研究所,西宁,810001
2. 青海大学,西宁,810003 |
| |
| 摘 要： | 以青海省三角城种羊场地区典型的盐地凤毛菊(Saussurea salsa)盐碱草甸为研究对象,采用相邻格子样方法取样,应用方差/均值比率法、负二项参数K、扩散系数C、Cassie指标、丛生指标I、平均拥挤度与聚块性指标等方法,研究了青海湖地区盐地凤毛菊群落优势种群的空间分布格局。结果表明,盐地凤毛菊群落优势种群的空间格局均为集群分布,这主要与物种本身的生态和生物学特性有关。
|
| 关 键 词： | 盐地凤毛菊 种群 空间分布格局 |
| 收稿时间： | 2005-04-17 |
| 修稿时间： | 2005-07-26 |
Population patterns of dominant species in Saussurea salsa communities at Qinghai Lake area |
| |
| ZHOU Guo-Ying,CHEN Gui-Chen,HAN You-Ji,LI Jin-Ping and WEI Guo-Liang.Population patterns of dominant species in Saussurea salsa communities at Qinghai Lake area[J].Chinese Journal of Eco-Agriculture,2006,14(4):38-40. |
| |
| Authors: | ZHOU Guo-Ying CHEN Gui-Chen HAN You-Ji LI Jin-Ping and WEI Guo-Liang |
| |
| Institution: | 1Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China;2University of Qinghai, Xining 810003,China |
| |
| Abstract: | The distribution patterns of dominant species in Saussurea salsa communities at Qinghai Lake area were studied. The contiguous grid quadrats were adopted to take samples for field data. The methods such as t-test of v/m ratio, negative binomial parameter, index of dispersion, Cassie index, clumping index, mean crowding index and patchiness index were used to analyze the distribution patterns. The results indicate that Saussurea salsa shows a clump distribution while other species in the communities are all clumped. Moreover, the patterns are closely related to the ecological and biological characteristics of each species. |
| |
| Keywords: | Saussurea salsa Population Spatial structure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国生态农业学报》浏览原始摘要信息 |
| 点击此处可从《中国生态农业学报》下载免费的PDF全文 |
|
