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| 西藏拉孜县草地植物群落的TWINSPAN分类及其物种多样性研究 | |
| 引用本文： | 李海涛,贺金生,倪志诚,周榜第,李乾振,沈文清.西藏拉孜县草地植物群落的TWINSPAN分类及其物种多样性研究[J].江西农业大学学报,2004,26(1):31-36. |
| 作者姓名： | 李海涛 贺金生 倪志诚 周榜第 李乾振 沈文清 |
| 作者单位： | 1. 中国科学院,地理科学与资源研究所,北京,100101 2. 中国科学院,植物研究所,北京,100044 3. 西藏自治区生物研究所,西藏,拉萨,850000 4. 北京林业大学,森林资源与环境学院,北京,100083 |
| 摘 要： | 应用双向指示种(TWINSPAN)分类技术对西藏拉孜县草地植物群落的71个样方进行分类和生物多样性研究；根据丰富度、均匀度和多样性指数，对分类后得到的群落类型进行排序，并探讨环境因子和草地植物群落多样性指标之间的关系。TWINSPAN分类的结果表明，上述草地植物群落可以划分为22个群落类型。通过海拔高度、经度、纬度、坡向和坡度与3个多样性指标的相关分析，只有海拔高度与均匀度之同星显著的负相关关系，即随着海拔的升高均匀度降低，而其它的环境因子与多样性指标之间无显著相关关系存在。 |
| 关 键 词： | 西藏拉孜县 草地 植物群落 双向指示种 TWINSPAN 物种多样性 |
| 文章编号： | 1000-2286(2004)01-0031-06 |
| 修稿时间： | 2003年5月20日 |
A Study on TWINSPAN Classification of Meadow Plants in Lazi County, Tibet |
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| LI Hai-tao,HE Jin-sheng,NI Zhi-chengZHOU Bang-di,LI Qian-zhen,SHEN Wen-qing.A Study on TWINSPAN Classification of Meadow Plants in Lazi County, Tibet[J].Acta Agriculturae Universitis Jiangxiensis,2004,26(1):31-36. | |
| Authors: | LI Hai-tao HE Jin-sheng NI Zhi-chengZHOU Bang-di LI Qian-zhen SHEN Wen-qing |
| Institution: | LI Hai-tao~1,HE Jin-sheng~2,NI Zhi-cheng~3ZHOU Bang-di~3,LI Qian-zhen~3,SHEN Wen-qing~4 |
| Abstract: | Seventy-one meadow plots in Lazi County, Tibetan were classified by Two-way Indicator Species Analysis. Meanwhile, species richness, evenness indexes and Shannon diversity index in these plots were calculated, and their correlation with elevation, longitude, latitude, aspect and slope were also analyzed. The results showed that the investigated plots were divided into 22 divisions. Among all the environmental factors, only elevation was negatively correlated with evenness index at the significance level of 0.01, and there was no significant correlation between the other factors and three biodiversity indexes. |
| Keywords: | Tibet meadow Two-way Indicator Species Analysis species diversity |
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