_id Sample_ID   FieldDate_ID   Replicate   Depth_range   Section_fresh_mass   Soil_percent_dry_matter   Soil_dry_mass   Soil_bulk_density   Stones_mass   Stones_volume   Root_mass   Root_total_N   Root_total_C   Root_15N   Root_13C   Soil_total_N   Soil_total_C   Soil_15N   Soil_13C   Invertebrates   Stem_mass   colspacer
Sample_ID FieldDate_ID Replicate Depth_range Section_fresh_mass Soil_percent_dry_matter Soil_dry_mass Soil_bulk_density Stones_mass Stones_volume Root_mass Root_total_N Root_total_C Root_15N Root_13C Soil_total_N Soil_total_C Soil_15N Soil_13C Invertebrates Stem_mass