Table 3 Summary of significant distance for spatial dependence based on Morans I analysis for SOC and TN, C:N, δ13C, and δ15N from three N fertilization treatments (i.e., NN, LN, and HN) in SG and GG.

From: Nitrogen Fertilization Restructured Spatial Patterns of Soil Organic Carbon and Total Nitrogen in Switchgrass and Gamagrass Croplands in Tennessee USA

Crop

Fertilization

Plot

SOC

TN

C:N

δ13C

δ15N

     

meter

  

SG

NN

P1

  

0.5

 

0.5, −2.25, −4.5, −4.75

  

P2

  

−4.75

3.75, 4.5

0.75, 1

 

LN

P1

3.5

 

−1.25

−4.25

1, 1.5, −2.75, −3, −3.25

  

P2

−2.75, −3.25

−2.75

3.75

−3.75

0.75, −3.75, −4.25, −4.5

 

HN

P1

0.5, −2

0.5, −2

  

0.75, 1, 1.5, −3.75, −4, −4.75, −5

  

P2

−1.75

−2.75

−1.75

−4

−1

GG

NN

P1

1.25

1.25

−3, 4.25

 

2.25

  

P2

−3.75, 4.25, −4.5

−3.75, −4.5, −5

−2

0.75, −4.25, −4.5

−3.5, −3.75, −4.5, −4.75

 

LN

P1

 

−3.5

4.75

0.75, −3, −3.75

0.5, −1.75

  

P2

−0.75, −3.75, −4.25, −4.75

0.75, 1.5, −3.75, −4.25, −4.75

0.75, −3.75, −4.25

0.75, 1.25, −3.75, −4, −4.25

−2.75

 

HN

P1

1.25, 1.75

 

1.75, 2.5

2.5

1.75, −3.75

  

P2

−4.25

  

−1.5

0.75, 4.25, 4.75