Organic matter

CO2

Soil microbial PLFA

Decomposition

Cover cropsBarley and Hairy vetch

PO4,SO4,NO3

Mineralization

Soil organic matter

pHTemperatureMoisture contentAeration Amount and quality of SOM

Soil respiration Drainage during floodingFlooding after drainage

Temperature

CO2 emission

Water content

In our results we got higher soil respiration at the end of fallow season and it was reduced immediately after the flooding condition but at the same time we got higher microbial PLFA which was considered due to SOM addition through CC

Photosynthesis

Correlation

Microbial activitySOM contentDecomposition rate

Soil quality

C/N 85:1

C/N 11:1

Plant available forms

Indicator

Indicator

Indi

cato

r

Fallow season Rice cultivation

low SOMLow MA

¶

Reduced soil respiration after flooding