内蒙古四子王旗短花针茅荒漠草原群落种间关联分析  

Correlation Analysis of Interspecific Relationship of Community in Stipa breviflora Desert Steppe in Siziwang Banner in Inner Mongolia

作　　者：锡林塔娜[1] 蒙荣[1] 慕宗杰[1,2] 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010019 [2]内蒙古农牧业科学院畜牧科技信息研究所,内蒙古呼和浩特010030

出　　处：《畜牧与饲料科学》2008年第6期6-9,共4页Animal Husbandry and Feed Science

基　　金：内蒙古自治区高等学校科学研究项目(NJ05093);内蒙古农业大学博士科研启动基金项目 (BJ04-22)。

摘　　要：为了探明内蒙古四子王旗短花针茅荒漠草原群落的种间关系,在对其群落进行样方调查的基础上,采用χ2检验、Pearson相关系数和Spearman秩相关系数检验等研究方法,对15种植物的105个种对间进行了种间相关分析。结果表明,四子王旗短花针茅荒漠草原群落种群间多呈负相关,显著和极显著相关种对数量少,优势种之间多数种对呈显著负相关,优势种与其他种之间呈负相关关系的种对较多。说明该群落物种间生态位发生分化,物种较为独立,但是资源利用性竞争激烈,群落仍处于发展演替中。In order to explore the interspecific relationship of the community in Stipa breviflora desert steppe in Siziwang Banner, Inner Mongolia, on the base of sample plots investigation on its community, the interspecific correlations of 105 species pairs from 15 kinds of plants were analyzed by using research methods of X^2 test, Pearson coefficient and Spearman rank correlation coefficient. The result showed that, the most interspecific community in Stipa breviflora desert steppe in Siziwang Banner had the negative correlation. The number of species pairs with significant and extremely significant correlation was little. The most of species pairs between dominant species showed significantly negative correlation and the number of species pairs between the dominant species and other species with negative correlation was more. It indicated that species niche of the community was differentiated and the species was independent, but the competition to resource availability was fierce and the community was in development and succession.

关 键 词：短花针茅荒漠草原 重要值 种间关联 

分 类 号：Q948.15[生物学—植物学]