Treatment^#

Cover crops

Depth

Tillage effect with or without cover crop SOC sequestration or loss in root zone 2000-2012

SOC deposited as sediment and retained in border and filter and sod waterway (70% sediment retention)

6 replications

cm

Mg∙C/ha/layer/yr

Mg∙C/ha/layer/yr

NT

Yes

0 - 75

1.21

0.07

NT

No

0 - 75

0.33

0.09

CP

Yes

0 - 75

0.35

0.21

CP

No

0 - 75

−0.14

0.26

MP

Yes

0 - 75

0.55

0.28

MP

No

0 - 75

0.45

0.35