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林业科学 ›› 2008, Vol. 44 ›› Issue (3): 6-12.doi: 10.11707/j.1001-7488.20080306

• 论文 • 上一篇    下一篇

辽东山区生态土地分类中的植物群落数量分析

代力民1 唐立娜2 曹玉明3 王顺忠4 周 莉1 王庆礼1   

  1. (1. 中国科学院沈阳应用生态研究所 沈阳110016; 2. 广东商学院城市与环境学系 广州510320; 3. 沈阳棋盘山开发区管理公司 沈阳110164;4. 中国科学院生物多样性委员会 北京100093)
  • 收稿日期:2006-12-06 修回日期:1900-01-01 出版日期:2008-03-25 发布日期:2008-03-25

Quantitative Classification and Ordination Aiming to Realize Ecological Land Classification for the Mountainous Region in Eastern Liaoning Province

Dai Limin1,Tang Lina2,Cao Yuming3,Wang Shunzhong4,Zhou Li1,Wang Qingli1

  

  1. (1. Institute of Applied Ecology, Chinese Academy of Science Shenyang 110016; 2. Department of Urban and Environmental Science, Guangdong University of Business Studies Guangzhou 510320; 3. Shenyang Qipanshan Development Zone Management Company Shenyang 110164; 4. Biodiversity Committee, Chinese Academy of Science Beijing 100093)
  • Received:2006-12-06 Revised:1900-01-01 Online:2008-03-25 Published:2008-03-25

摘要:

采用TWINSPAN分类和PCA、CCA排序的方法对辽东山区样方数据进行植物群落数量分析。结果表明:分类和排序是分析植被与环境关系的有效途径。CCA指示了植物群落与环境因子之间的相关关系。MRPP检验表明,特定的植物群落和环境因子的组合是客观存在的,这种特定的组合构成了特定的生态系统单元。本研究共得到6种群落类型,能够基本指示研究区潜在的植被类型,可用于表征生态土地分类中分类单元的植被类型。制约辽东山区森林群落类型、植物种分布格局的主要因素是坡向、坡度的变化,可将其作为生态土地分类的依据。

关键词: 植物群落数量分析, 生态土地分类, 环境因子, 辽东山区

Abstract:

Quantitative classification and ordination aiming to realize multifactor ecological land classification was developed for the mountainous region in eastern Liaoning Province. Data for ground flora and canopy trees species from selected stands were summarized and subjected to TWINSPAN classification and PCA, CCA ordination. CCA indicated that slope and aspect were highly correlated with the ground flora and canopy tree species. Pairwise MRPP tests indicated many significant differences (P<0.05) among the vegetation groups and environmental factors. 6 types of plant community, which can be used to indicate the vegetation type in ecological classification system, were based on cluster analysis of the six most environment factors. The vegetation of the mountainous region in eastern Liaoning Province was believed to be related a moisture and nutrient gradient which was mainly influenced by slope and aspect, which can be used as criterion in ecological land classification.

Key words: quantitative classification and ordination, ecological land classification, environmental factors, mountainous region in eastern Liaoning Province