Skip to main content

Table 7 Pearson’s correlation coefficient test of significance and distance covariance test of independence of biomass expansion factors (BEF) on total tree height (TH) in A. johnsonii

From: Tree component biomass expansion factors and root-to-shoot ratio of Lebombo ironwood: measurement uncertainty

BEF vs. TH
   Pearson’s correlation test Distance covariance test of independence
# Tree component r Probability dcov dcor Probability
1 Taproot + stump – 0.5353 3.2E-08 0.1106 0.5672 0.0150
2 Lateral roots – 0.0055 0.9585 0.0516 0.2679 0.1550
3 Root system (1 + 2) – 0.3936 9.5E-05 0.0918 0.4009 0.0150
4 Stem wood – 0.0337 0.7486 0.0370 0.1562 0.6350
5 Stem bark – 0.1564 0.1345 0.0249 0.1636 0.5250
6 Stem (4 + 5) – 0.0988 0.3461 0.0439 0.1833 0.3750
7 Branches – 0.2233 0.0314 0.0844 0.2334 0.2400
8 Foliage – 0.6306 1.2E-11 0.0835 0.6386 0.0150
9 Crown (7 + 8) – 0.3057 0.0029 0.1089 0.2910 0.0600
10 Shoot system (6 + 9) – 0.3220 0.0016 0.1131 0.2911 0.1300
11 Total tree (3 + 10) – 0.3691 0.0003 0.1495 0.3376 0.0400
  1. The major components and their values are indicated in bold font. r, Perason’s correlation coefficient; dcov, distance covariance; dcor, distance correlation; probability refers to the significance of the test.
\