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Table 5 The spatial distribution of mineral and the duff/litter soil carbon (C) and encroached plot trees

From: Twentieth century carbon stock changes related to Piñon-Juniper expansion into a black sagebrush community

Plot HSC LD HD PJD
MI mineral soil C −0.15 −0.01 −0.13 −0.01
Z-score MI mineral soil C −0.88 0.09 −0.86 0.38
P-value MI mineral soil C NA NA NA NA
Distribution mineral soil C random random random random
MI duff/litter C −0.04 0.32 0.22 0.25
Z-score MI duff/litter C −0.05 2.7 2.1 2.2
P-value MI duff/litter C NA 0.01 0.05 0.05
Distribution duff/litter random clustered clustered clustered
ANND tree NA 0.61 079 0.59
Z-score ANND tree NA 3.7 1.9 2.9
P-value ANND tree NA 0.01 0.05 0.01
Distribution tree NA clustered clustered clustered
  1. The spatial distribution of soil C pools is based Moran’s I (MI) for spatial autocorrelation. The spatial distribution is based on the Average Nearest Neighbor Distance (ANND) value.