欢迎访问《植物研究》杂志官方网站,今天是 分享到:

植物研究 ›› 2008, Vol. 28 ›› Issue (1): 98-103.doi: 10.7525/j.issn.1673-5102.2008.01.021

• 论文 • 上一篇    下一篇

乌兰布和沙漠天然白刺种群及主要伴生种种间关联性研究

李智叁;李凤日   

  1. 东北林业大学林学院,哈尔滨 150040
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-01-20 发布日期:2008-01-20
  • 通讯作者: 李智叁
  • 基金资助:
     

Study on Interspecific Associations of Natural Nitraria tangtorum Population and Its Main Companion Species in Ulanbuh Desert

LI Zhi-San;LI Feng-Ri   

  1. Forestry College, Northeast Forestry University, Harbin 150040
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-01-20 Published:2008-01-20
  • Contact: LI Zhi-San
  • Supported by:
     

摘要: 采用2×2列联表,运用方差比率法(VR)、χ2统计量检验、联结系数(AC)和共同出现百分率(PC)等指标,以关联测度指标(OIDJJI)为参考,对内蒙古自治区乌兰布和沙漠天然白刺(Nitraria tangtorum)种群及其伴生种的种间关联性进行分析,结果表明:天然白刺种群内8个主要物种总体关联性表现为无关联。在全部的28个种对中,15个种对表现为正联结,13个种对间表现为负联结。种对中除白刺–沙蒿表现为显著负联结外,其他种对间联结性均不显著。主要物种白刺与草本,草本与草本之间趋向独立分布。通过对天然白刺种群总体以及种间的关联性研究,为构建稳定的沙漠植物群落、恢复重建沙漠地区的植被、改善沙漠地区生态格局提供理论指导。

关键词: 天然白刺, 种间联结, 种群, 乌兰布和沙漠

Abstract: A series of techniques including the variance analysis (VR), χ2-test, the association co-efficient(AC), the percentage of co-ocurrenc (PC) consulting the association indices(OIDJJI)were used together with a 2×2 contingency table to analyze the interspecific associations of natural Nitraria tangtorum population and its main companion species in Ulanbuh Desert Inner Mongolia. Result: In the natural Nitraria tangtorum population,the association of 8 dominant species showed no correlation. By the calculation results, in the all 28 species-pairs, there are 15 species-pairs which revealed positive association, and 13 species-pairs revealed negative association. Most of the species-pairs revealed little significant association except Nitraria tangtorumArtemisia ordosica. Nitraria tangtorumArtemisia ordosica revealed significant negative association.. Nitraria tangtorum-herbage and other herbaceous species-pairs distributions trend to be independent. The result is very important to construct steady desert plant community, reconstruct desert plant community and regulate ecological pattern in theory.

Key words: Natural Nitraria tangtorum, interspecific associations, population, Ulanbuh Desert

中图分类号: