卧龙自然保护区亚高山草甸的数量分类与排序

应用生态学报

卧龙自然保护区亚高山草甸的数量分类与排序

宋爱云¹;刘世荣¹;史作民¹;董林水²

¹中国林业科学研究院森林生态环境与保护研究所,北京 100091；²中国林业科学研究院林业研究所,北京 100091

收稿日期:2005-05-23 修回日期:2006-05-06 出版日期:2006-07-18 发布日期:2006-07-18

Quantitative classification and ordination of subalpine meadow in Wolong Nature Reserve

SONG Aiyun¹; LIU Shirong¹; SHI Zuomin¹; DONG Linshui²

¹Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China;²Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China

Received:2005-05-23 Revised:2006-05-06 Online:2006-07-18 Published:2006-07-18

摘要/Abstract

摘要： 在野外植被调查的基础上,采用植被数量分析方法对岷江流域卧龙自然保护区亚高山草甸进行TWINSPAN分类和DCA排序,研究了植物种、植物群落与环境之间的关系.结果表明,该地区亚高山草甸共有植物139种,隶属于31科88属.应用数量分类方法将114个样方分为12个群落类型.在分析不同环境因子间的关系基础上,从定量的角度揭示了影响群落分布的主要因素是海拔梯度和土壤含水量.DCA排序图反映出排序轴的生态意义,第1轴反映了各群落类型所在环境的海拔梯度,从上到下,随着海拔的升高,植物群落或植物种的耐寒性越来越强；第2轴基本上反映了各群落类型所在环境的土壤含水量.排序结果与分类结果比较吻合,反映出植物群落类型和物种分布随环境因子梯度变化的趋势.

关键词: 厌氧颗粒污泥, 五氯酚(PCP)污染土壤, 土壤泥浆, 厌氧生物修复

Abstract: Based on the field investigation of 114 sampling plots at Balong Mountain in Wolong Nature Reserve, this paper studied the plant species composition and community structure of subalpine meadow communities. Two-way indicator species analysis and detrended correspondence analysis were employed to classify and ordinate the subalpine meadow communities in these sampling plots, aimed to understand the key factors determining the structure and distribution pattern of subalpine meadow communities. Through TWINSPAN analysis, the subalpine meadow was classified into 12 types. DCA ordination gave the ecological significance of ordination axes. Axis 1 indicated the altitude the meadow distributed, while axis 2 indicated the soil humidity of the distribution site. The ordination of dominant species was similar to the classification of community types, reflecting the change trend of community type and species distribution with changing environmental factors.

Key words: Anaerobic granular sludge, PCP contaminated soil, Soil slurry, Anaerobic bioremediation

宋爱云¹;刘世荣¹;史作民¹;董林水² . 卧龙自然保护区亚高山草甸的数量分类与排序[J]. 应用生态学报.

SONG Aiyun¹; LIU Shirong¹; SHI Zuomin¹; DONG Linshui². Quantitative classification and ordination of subalpine meadow in Wolong Nature Reserve[J]. Chinese Journal of Applied Ecology.

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[2]	徐向阳, 冯孝善. 五氯酚(PCP)污染土壤厌氧生物修复技术的初步研究 [J]. 应用生态学报, 2001, (3): 439-442.