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山西陵川南方红豆杉群落优势种种间关联性分析

王霞1,铁军2,3*,李燕芬1,刘泽宇1#br#   

  1. 1 山西师范大学生命科学学院, 山西临汾 041004; 2 长治学院生物科学与技术系, 山西长治 046011; 3 太行山生态与环境研究所, 山西长治 046011)
  • 出版日期:2016-10-10 发布日期:2016-10-10

Interspecific association of dominant species in Taxus chinensis var. mairei community of Lingchuan in Shanxi.

WANG Xia1, TIE Jun2,3*, LI Yan-fen1, LIU Ze-yu1#br#   

  1. (1 College of Life Science, Shanxi Normal University, Linfen 041004, Shanxi, China; 2 Department of Biological Sciences and Technology, Changzhi College, Changzhi 046011, Shanxi, China; 3 Ecological and Environmental Research Institute of Taihang Mountain, Changzhi 046011, Shanxi, China).
  • Online:2016-10-10 Published:2016-10-10

摘要: 为合理开发和保护山西濒危植物南方红豆杉资源提供依据,本文利用χ2检验、Pearson相关系数和Spearman秩相关系数检验等数量分析方法对山西陵川红豆杉自然保护区南方红豆杉群落25个优势种,300个种对间的关联性进行了研究,并采用DCA排序法对优势种进行了生态种组划分。结果表明:负关联的种对数大于正关联的种对数,说明陵川红豆杉自然保护区南方红豆杉群落优势种种间关联性较弱,群落的成熟程度较低,群落结构稳定性较差,仍处于群落演替的初期或中期阶段;在南方红豆杉群落25个优势种300个种对中,大多数种对的关联性未达到显著水平,种对间的独立性相对较强,这可能与生境异质性、物种间不同的生物学特性和生态需求有关;根据南方红豆杉群落中25个优势种群对环境的适应方式和主导生态因素辅助以DCA排序,可将它们划分为3个生态种组。

关键词: 土地利用变化, 板栗林, 土壤碳库, 常绿阔叶林

Abstract: To provide basis for effective utilization and protection of endangered plant Taxus chinensis var. mairei resources in Shanxi, this paper studied interspecific associations among 300 species pairs of 25 dominant species in T. chinensis var. mairei community by using χ2 test, Pearson correlation and Spearman rank analysis in Lingchuan Nature Reserve in Shanxi. Moreover, the detrended correspondence analysis was used to carry out the division of ecological species groups of dominant species. The results showed that the number of negatively correlated pairs was greater than that of the positively correlated pairs for the dominant species of T. chinensis var. mairei community, indicating that dominant species in T. chinensis var. mairei community in Lingchuan Nature Reserve did not correlate with each other significantly. The community maturity was lower and structure stability was poorer. Thus, the community was still at the early or middle stage of succession. The correlation among most species in T. chinensis var. mairei community did not reach a significant level and the independence of species was relatively strong, which may be related to habitat heterogeneity, and the different biological characteristics and ecological needs of the different species. According to the adapting ways of the dominant populations in T. chinensis var. mairei community and the leading ecological factors in the help of DCA ordination, the 25 dominant species in the T. chinensis var. mairei community could be classified into three ecological species groups.

Key words: soil carbon pool, evergreen broad-leaved forest, Chinese chestnut plantation, land-use change.