Numerical Analysis of Plants Interspecific Relationships in Qilihai Wetland

LI Lan-lan; XU Nuo; MO Xun-qiang; LI Hong-yuan

doi:10.13961/j.cnki.stbctb.2014.04.027

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Numerical Analysis of Plants Interspecific Relationships in Qilihai Wetland

- Numerical Analysis of Plants Interspecific Relationships in Qilihai Wetland
- Bulletin of Soiland Water Conservation Vol. 33, Issue 4, Pages: 70-75(2014)
- 作者机构：
  
  1. 南开大学环境科学与工程学院,天津,300071
  2. 天津师范大学城市与环境科学学院,天津,300387
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.04.027
  CLC：
- Published：2014
- 稿件说明：
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LI Lan-lan, XU Nuo, MO Xun-qiang, et al. Numerical Analysis of Plants Interspecific Relationships in Qilihai Wetland[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 70-75.
DOI：

LI Lan-lan, XU Nuo, MO Xun-qiang, et al. Numerical Analysis of Plants Interspecific Relationships in Qilihai Wetland[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 70-75. DOI： 10.13961/j.cnki.stbctb.2014.04.027.

摘要

在野外样方调查的基础上

采用χ

检验和Spearman秩相关分析方法

研究了七里海湿地40种主要植物

共780个种对间关联和相关关系。χ

检验结果有357个种对呈正相关

423个种对呈负相关;Spearman秩相关分析检验结果有356个种对呈正相关

有424个种对呈负相关。二者结果一致

与χ

检验相比

Spearman秩相关分析法更为灵敏。七里海湿地主要植物种具有显著相关性的种对数(279对)占总种对数(780对)的比例较低

为35.77%

说明大多数种间关系松散

种对间的独立性较强

植被可能处于退化状态。40个主要植物种可以划分为3个生态种组

各生态种组内的种有相似的资源利用方式和生态要求

各种组间有相互转化和演替的趋势。

Abstract

Based on the data resources investigated from the field

the interspecific relationships among 780 species pairs

which belong to 40 dominant plant species of Qilihai wetland vegetation were analyzed by using methods of χ2-test and Spearman's rank correlation analysis. The results showed that:(1) Analyzed by χ2-test

there were positive correlation for 357 pair-species and negative correlation for 423 pair-species.(2) By applying Spearman's rank correlation analysis

there were positive correlations for 356 pair-species and negative correlations for 424 pair-species Analyzed by. It clearly demonstrated that the 2 test methods derived similar results. Compared with χ2-test

Spearman's correlation coefficient was more sensitive. The proportion of significant correlated species pair was 35.77%

which indicated that most of the species were independently distributed and had a loose relationship with each other. This further indicated that the vegetation might be in a state of degradation. The 40 dominant species were divided into 3 ecological species groups. Species in the same ecological species group had the same way of resources utilization and biology requirement. However

we observed that species belonging to different groups had the trend of succession and transform into each other.

关键词

Keywords

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