辽东山地老秃顶子冰缘地貌植物群落多样性

孙明扬; 张华; 罗璇; 刘剑刚; 祝业平; 兰玉波; 王颖; 马明军

doi:10.13961/j.cnki.stbctb.2016.01.014

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辽东山地老秃顶子冰缘地貌植物群落多样性

试验研究

- 辽东山地老秃顶子冰缘地貌植物群落多样性
- Plant Community Diversity in Periglacial Landform of Mount Laotudingzi in Mountainous Area in Eastern Liaoning Province
- 水土保持通报 2016年36卷第1期页码：75-81
- 作者机构：
  
  1. 辽宁师范大学城市与环境学院,辽宁,大连,116029
  2. 辽宁师范大学海洋经济与可持续发展研究中心,辽宁,大连,116029
  3. 辽宁老秃顶子国家级自然保护区管理局, 辽宁桓仁,117218
- 作者简介：
- 基金信息：
  
  国家自然科学资助项目"辽东山地老秃顶子冰缘地貌植物群落稳定性研究"(41271064)
- DOI：10.13961/j.cnki.stbctb.2016.01.014
  中图分类号：
- 纸质出版：2016
- 稿件说明：
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孙明扬, 张华, 罗璇, 等. 辽东山地老秃顶子冰缘地貌植物群落多样性[J]. 水土保持通报, 2016,36(1):75-81.

SUN Mingyang, ZHANG Hua, LUO Xuan, et al. Plant Community Diversity in Periglacial Landform of Mount Laotudingzi in Mountainous Area in Eastern Liaoning Province[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 75-81.
孙明扬, 张华, 罗璇, 等. 辽东山地老秃顶子冰缘地貌植物群落多样性[J]. 水土保持通报, 2016,36(1):75-81. DOI： 10.13961/j.cnki.stbctb.2016.01.014.

SUN Mingyang, ZHANG Hua, LUO Xuan, et al. Plant Community Diversity in Periglacial Landform of Mount Laotudingzi in Mountainous Area in Eastern Liaoning Province[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 75-81. DOI： 10.13961/j.cnki.stbctb.2016.01.014.

摘要

[目的] 研究老秃顶子冰缘地貌植物群落的多样性特征

为其上植被的保护提供科学依据. [方法] 基于48个样地的群落调查数据

采用物种丰富度指数和α多样性指数

对石海、石河、石流坡3种冰缘地貌植物群落的多样性进行定量研究

并对其影响因素进行分析. [结果] (1) 植被划分为22个群系

6种植被类型

其中石河地貌上植被类型以落叶阔叶林、针阔混交林为主;石海地貌上以灌丛、灌草丛为主;石流坡地貌上以针阔混交林为主

22个群系对应分布于3种地貌

有些群系具有专有性

有些具有共有性.(2) 3种冰缘地貌群落总体综合多样性指数大小依次为:石河 >石流坡 >石海

乔木层、灌木层综合多样性指数变化均次为:石河 >石流坡 >石海;草本层依次为石海 >石流坡 >石河.(3) 不同植被类型、不同植物群系的物种多样性因所处的生境特征不同而出现差异.(4) 地形因子中的海拔对植物群落物种多样性指数影响最大

且灌木层的物种多样性对海拔敏感程度最小. [结论] 研究区植物群落的多样性特征较好

海拔是影响多样性指数的主导因子.

Abstract

[Objective] The objective of the paper is to investigate the plant community diversity in Periglacial Landform of Mount Laotudingzi in order to provide the scientific basis for plant protection in this area. [Methods] Based on the data collected from 48 sample plots

we used species richness index and α diversity index to analyze the species diversity of the plant communities in rock stream

rock block field and rock glacier slope of Mount Laotudingzi. We also analyzed the related envitonmental factors. [Results] (1) Plant communities can be divided into 16 forest formations and 6 bushy formations belonging to 6 vegetation types which were broadleaved deciduous forest

theropencedrymion

dark coniferous forest

elfin forest

bush wood and meadow thicket. Of them

the theropencedrymion

broadleaved deciduous forest and dark coniferous forest mainly distributed in landform of rock stream; The bush wood and meadow thicket

the theropencedrymion and elfin forest mainly distributed in landform of rock block fields. The theropencedrymion

broadleaved deciduous forest

bush wood

elfin forest mainly distributed in landform of rock glacier side. Among 22 formations

some were distributed very locally

some may occur in all three habitats.(2) The value of comprehensive biodiversity index of plant community was: rock stream> rock glacier slop > rock block field; The value of biodiversity index of tree layer and shrub layer was also: rock stream> rock glacier slop > rock block field; The value of biodiversity index of herb layer was: rock block field> rock glacier slop > rock stream; (3) Species diversity was significantly different between different vegetation types;(4) Among the topographic factors

the altitude had the greatest impact on species diversity index

and the diversity index of shrub layer was the least sensitive to the elevation change. [Conclusion] The study area has relative high diversity

altitude is the dominant factor affecting the diversity pattern.

关键词

Keywords

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