生物多样性 ›› 2004, Vol. 12 ›› Issue (1): 174-181.DOI: 10.17520/biods.2004021

所属专题: 探索中国山地植物多样性的分布规律

• 论文 • 上一篇    下一篇

东北地区阔叶红松林的群落结构及其物种多样性比较

吴晓莆, 朱彪, 赵淑清, 朴世龙, 方精云   

  1. (北京大学环境学院生态学系,北京大学生态学研究与教育中心,北京大学地表过程分析与模拟教育部重点实验室,北京 100871)
  • 收稿日期:2003-06-12 修回日期:2003-09-10 出版日期:2004-01-20 发布日期:2004-01-20

Comparison of community structure and species diversity of mixed forests of deciduous broad-leaved tree and Korean pine in Northeast China

WU Xiao-Pu, ZHU Biao, ZHAO Shu-Qing, PIAO Shi-Long, FANG Jing-Yun   

  1. Department of Ecology,College of Environmental Sicences,Center for Ecological Research & Education,and Key Laboratory for Earth Surface Processes of the Ministry of Education,Peking University,Beijing 100871
  • Received:2003-06-12 Revised:2003-09-10 Online:2004-01-20 Published:2004-01-20

摘要: 利用在长白山、小兴安岭、张广才岭设置的9个样方的调查资料,对我国东北地区阔叶红松林的群落结构及其物种多样性进行了对比分析。结果表明,在9个样方共记录到物种137种,隶属于53科98属。利用TWINSPAN将9个样方分为3组4个类型;  同时,TWINSPAN还将27个乔木种划分为7个群落类型。不同样方的群落结构指标相差较大,这与群落所处的环境、地理位置以及年龄有关。平均胸径与立木密度之间呈幂函数关系,后者随前者增加而递减。群落结构特征之间存在显著的关系,但与物种丰富度的关系不显著。对于多样性(H′)和均匀度(E)来说,一般有草本层>灌木层>乔木层的趋势;  而在各自的取样面积内,物种丰富度(S)差异不大。对所有调查区域内的植物而言,长白山的阔叶红松林在三地中拥有最高的丰富度,并且这主要来源于草本层和灌木层的贡献,乔木层的丰富度在三地并没有明显差异。

Abstract: We studied community structure and species diversity of mixed forests of deciduous broadleaved tree and Korean pine (Pinus koraiensis) in Mt. Changbai, Mt. Xiaoxing’anling and Mt. Zhangguangcailing, Northeast China. A total of 137 species belonging to 98 genera in 53 families were recorded in the nine plots. TWINSPAN analysis of the plots identified nine plots into four community types and three groups, while the 27 tree species established seven community types. Characteristics of community structure differed greatly among the 19 plots, which may be related to environmental factors, location and age of the community. Mean DBH decreased with the increase of stem density in accordance with a power-law function. There were significant correlations among the parameters of community structure. However, tree species richness did not correlate significantly with community structure. Concerning comparison among different layers, diversity (H′) and evenness (E) of herbaceous plants were the greatest, followed by those of shrubs and trees. The mixed forests of Mt. Changbai had the highest species richness, due mainly to a high richness of herbaceous plants and shrubs in Mt. Changbai.