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常熟虞山森林植被群落的数量分类与排序(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2010年03期
Page:
45-50
Column:
研究论文
publishdate:
2010-06-29

Article Info:/Info

Title:
Numerical classification and ordination of forest vegetation communities in Yushan mountain, Changshu
Author(s):
REN Binbin1 LI Shuhua2* ZHU Chunyang1 ZHANG Xiaotong3
1.College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, China; 2.School of Architecture, Tsinghua University, Beijing 100084,China; 3.College of Resources and Environment, China Agricultural University, Beijing 100193, China
Keywords:
forest community TWINSPAN classification CCA ordination Yushan mountain
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2010.03.010
Document Code:
A
Abstract:
In this research, typical sampling method was adopted to sample in forest communities of Yushan, Changshu. And based on the data from 22 sample plots, forest communities in Yushan were investigated using TWINSPAN and CCA in order to analyze the structure of the communities.The results of TWINSPAN classification indicated that these quadrates were classified into 8 types based on the flora composition of canopy layer. CCA ordination demonstrated a significant relationship between Axis 1 and elevation, indicating the function of temperature. On the other hand, Axis 2 showed significant correlation with slop an aspect, which suggested humidity, illumination and other things played key roles in community assembly. The results also indicated that the distribution of the vegetation communities was mainly impacted by two environmental factors including sharpness and slope direction. On the contrary, the vertical distributional character was not obvious.

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Last Update: 2010-06-29