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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.