| Age | | Code list | Restoration age (number of growing seasons) of the field |
| Plot | | Physical quantity | Plot number- Each field contained 4 plots |
| pLgMacro | | Physical quantity | Percent large macroaggregates (> 200 μm) by mass |
| pSmMacro | | Physical quantity | Percent small macroaggregates (> 150-200 μm) by mass |
| pMacro | | Physical quantity | Percent combined macroaggregates (> 150 μm) by mass |
| CMacro | | Physical quantity | C stock of macroaggregates (g/m2) |
| pCMacro | | Physical quantity | Percent total C in macroaggregates |
| pMicro | | Physical quantity | Percent microaggregates (50-150 μm) by mass |
| CMicro | | Physical quantity | C stock of microaggregates (g/m2) |
| pCMicro | | Physical quantity | Percent total C in microaggregates |
| pSC | | Physical quantity | Percent silt/clay (< 50 μm) by mass |
| CSC | | Physical quantity | C stock of silt/clay (g/m2) |
| pCSC | | Physical quantity | Percent total C in silt/clay |
| piCPOM | | Physical quantity | Percent intra-aggregate CPOM by mass |
| CiCPOM | | Physical quantity | C stock of intra-aggregate CPOM (g/m2) |
| pCiCPOM | | Physical quantity | Percent total C in intra-aggregate CPOM |
| piSC | | Physical quantity | Percent intra-aggregate silt/clay by mass |
| CiSC | | Physical quantity | C stock of intra-aggregate silt/clay (g/m2) |
| pCiSC | | Physical quantity | Percent total C in intra-aggregate silt/clay |
| piMicro | | Physical quantity | Percent intra-aggregate microaggregates by mass |
| CiMicro | | Physical quantity | C stock of intra-aggregate microaggregates (g/m2) |
| pCiMicro | | Physical quantity | Percent total C in intra-aggregate microaggregates |
