银川平原湿地常见植物种间关系研究

Abstract

Abstract: Interspecific relationships among plant species in wetlands in the Yinchuan Plain were studied using the χ²-test, Jaccard associated index, Pearson correlation coefficient and Spearman rank correlation coefficient. The results are as follows: ① The interspecific relationships among the plant species could be expressed by 3 methods, and they were similar but not identical. The χ²-test revealed that there were 24 positive pair-species associations and 4 negative ones, in which 12 were significantly-positive associations and 1 was significantlynegative one. The Pearson correlation coefficient test revealed that there were 30 positive pairspecies correlations without negative one, in which 12 were significantlypositive associations. Spearman rank correlation coefficient test revealed that there were 50 positive pair-species correlations and 8 negative ones, in which 31 were significantlypositive associations and 1 was significantly-negative one; ② The 33 common plant species in wetlands in the Yinchuan Plain could be divided into 4 ecological species groups, i.e. the hydrophyte, hygrophyte, mesophyte and xerophyte species groups. There were mostly the significantly positive associations among plant groups but negative or significantly negative ones among species groups; ③ In the Yinchuan Plain, the wetland plant communities were usually in an independent pattern, so that the communities were not stable yet and still in a constant succession.

ZHAO Yong-Quan, HE Tong-Hui, CHENG Zhi, ZHANG Juan-Hong, YANG Ming-Xiu, ZHANG Yu-Feng. Interspecific Relationships among Common Plant Species  in Wetlands in the Yinchuan Plain[J]., 2013, 30(5): 838-844.

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Interspecific Relationships among Common Plant Species  in Wetlands in the Yinchuan Plain

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