highly significantp ≤ 0.01
As shown in Figure 9 , 8 pairs of indicators showed a highly significant correlation ( p ≤ 0.01), and 8 pairs of indicators showed significant correlation ( p ≤ 0.05).
As shown in Figure 9 , 8 pairs of indicators showed a highly significant correlation ( p ≤ 0.01), and 8 pairs of indicators showed significant correlation ( p ≤ 0.05).