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Study on the relationship of plant species in Phragmites australis community in Yinchuan plain |
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Abstract: |
In this study, Phragmites australis community in the Yinchuan plain was taken as the research object, and the method of field investigation was carried out to study the interspecies relevance in the community by using x2 -test and
Spearman rank correlation analysis method, and their ecological meanings. The results showed that the community mainly
consisted of 20 species, 18 genera, 14 families. In the community, significantly or extremely significantly correlated specie pairs accounted for only 47.89%, and those significantly positively related specic pairs were smaller, only accounted for 20.00%; but negatively related or unrelated species pairs accounted for 80.00%. According to the environmental conditions, the species were classified into 4 ecological species groups which were aquatic species group, hygrophyte species group, mesophyte species group and meso-xerophytes species group. |
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