Ecological Archives A018-050-A2

R. Matamala, J. D. Jastrow, R. M. Miller, and C. T. Garten. 2008. Temporal changes in C and N stocks of restored prairie: implications for C sequestration strategies. Ecological Applications 18:1470–1488.

Appendix B. A table of regression parameters and upper and lower 95% confidence intervals for equations used in calculating rates of C and N accrual and time to reach 50% and 95% of remnant prairie levels.

TABLE B1. Regression parameters and upper and lower 95% confidence intervals calculated for two reference soil masses (data from Drummer and Wauconda chronosequences combined)

 

Soil mass 0.16 t m‑2

 

Soil mass 1.2 t m-2


 

Parameter Value

95% LCI

95% UCI

 

Parameter Value

95% LCI

95% UCI

 

Parameter Value

95% LCI

95% UCI

Carbon (kg C m-2)

 

 

 

 

 

 

 

 

 

 

Aboveground

 

 

 

Belowground

 

 

 

Belowground

 

 

Ce
K

0.76±0.04
0.2298±0.081

0.68
0.069

0.84
0.391

 

0.67±0.06
0.0470±0.0081

0.55
0.030

0.79
0.064

 

0.67±0.06
0.0660±0.014

0.54
0.040

0.81
0.096

 

 

 

 

 

 

 

 

 

 

 

 

MBC

 

 

 

MBC

 

 

 

MBC

 

 

C0
Ca
k

 

 

 

 

0.08±0.02
0.35±0.04
0.0179±0.005

0.03
0.26
0.007

0.12
0.43
0.029

 

0.31±0.06
0.31±0.09
0.0504±0.029

0.18
0.11
0.012

0.43
0.51
0.113

 

 

 

 

 

 

 

 

 

 

 

 

SOC

 

 

 

SOC

 

 

 

 

 

 

C0
Ca
k

 

 

 

 

5.36±0.50
6.98±0.90
0.0068±0.0051

4.29
5.07
0.004

6.42
8.89
0.018

 

 

 

 

Nitrogen (g N m‑2)

 

 

 

 

 

 

 

 

 

 

Aboveground

 

 

 

Belowground

 

 

 

Belowground

 

 

Ce
k

10.87±1.05
0.1438±0.0566

8.64
0.024

13.09
0.264

 

10.54±0.64
0.0292±0.0033

9.19
0.022

11.89
0.036

 

10.61±0.69
0.0360±0.0044

9.14
0.027

12.07
0.045

 

 

 

 

 

 

 

 

 

 

 

 

TN

 

 

 

TN

 

 

 

 

 

 

C0
Ca
k

 

 

 

 

425.1±46.8
594.1±12.9
0.0054±0.0061

32.6
32.1
‑0.01

52.4
86.7
0.018

 

 

 

 

 


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