天山北麓绿洲荒漠过渡带优势植物的生态位特征与种间联结
卢燕, 吴万平, 曾勇

Niche characteristics and interspecific connection of dominant plants in the oasis desert transition zone at the northern foot of Tianshan Mountains
Yan Lu, Wanping Wu, Yong Zeng
表4 主要物种的 χ2 检验、Pearson相关检验和Spearman秩相关检验结果比较
Table 4 Comparison of chi-square testPearson correlation test and Spearman rank correlation test results among main species
检验方法正联结(相关)负联结(相关)

极显著

(P < 0.01)

显著

(0.01 ≤P≤ 0.05)

不显著

(P > 0.05)

总数

极显著

(P < 0.01)

显著

(0.01 ≤P ≤ 0.05)

不显著

(P > 0.05)

总数
χ2检验17(4.50)30(7.93)331(87.57)378(100.00)0 (0.00)0 (0.00)0 (0.00)0 (0.00)
Pearson相关38(10.05)19(5.03)56(14.81)113(29.89)0 (0.00)0 (0.00)265(70.11)265(70.11)
Spearman秩相关22(5.82)42(11.11)78(20.64)142(37.57)0 (0.00)3(0.79)233(61.64)236(62.43)