Variable,Description,Units/Format LAT,Latitude,decimal degrees LONG,Longitude,decimal degrees ELEV,Elevation a.s.l,m IGBP,Vegetation type,IGBP code Qualifier:COMMENT,Vegetation type comments, free text ASA,Mean stand age in years,years Qualifier:SIGMA,Average stand age error estimate,years Qualifier:COMMENT,Mean stand age comments,free text MSA,Maximum stand age,years Qualifier:SIGMA,Maximum stand age error estimate,years Qualifier:COMMENT,Maximum stand age comments,free text SPP_O,Overstory dominant species,NRCS code Qualifier:PERC,Overstory dominant species percent,% Qualifier:PERC_SIGMA,Overstory dominant species percent error estimate,% Qualifier:COMMENT,Overstory dominant species comments,free text SPP_U,Understory dominant species,NRCS code Qualifier:PERC,Understory dominant species percent,% Qualifier:PERC_SIGMA,Understory dominant species percent error estimate,% Qualifier:COMMENT,Understory Dominant species comments,free text LAI_DO,Deciduous overstory Leaf Area Index,m2/m2 Qualifier:SIGMA,Deciduous overstory Leaf Area Index error estimate,m2/m2 LAI_EO,Evergreen overstory Leaf Area Index,m2/m2 Qualifier:SIGMA,Evergreen overstory Leaf Area Index error estimate,m2/m2 LAI_U,Understory Leaf Area Index,m2/m2 Qualifier:SIGMA,Understory Leaf Area Index error estimate,m2/m2 LAI,Leaf Area Index (total),m2/m2 Qualifier:SIGMA,Leaf Area Index (total) error estimate,m2/m2 Qualifier:CLUMP,Foliage element clumping index, Qualifier:TECHNIQUE,Leaf Area Index measurement technique, Qualifier:COMMENT,Leaf Area Index comments, free text HEIGHTC,Mean canopy height,m Qualifier:SIGMA,Mean canopy height error estimate,m Qualifier:COMMENT,Mean canopy height comments,free text AG_BIOMASS_TF,Aboveground biomass of tree foliage,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of tree foliage error estimate,gC/m2 (ground) AG_BIOMASS_TW,Aboveground biomass of tree wood,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of tree wood error estimate,gC/m2 (ground) AG_BIOMASS_TT,Aboveground biomass trees total,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass trees total error estimate,gC/m2 (ground) AG_BIOMASS_SF,Aboveground biomass of shrub foliage,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of shrub foliage error estimate,gC/m2 (ground) AG_BIOMASS_SW,Aboveground biomass of shrub wood,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of shrub wood error estimate,gC/m2 (ground) AG_BIOMASS_ST,Aboveground biomass of shrubs total,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of shrubs total error estimate,gC/m2 (ground) AG_BIOMASS_NWT,Aboveground biomass of non-woody plants,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of non-woody plants error estimate,gC/m2 (ground) AG_BIOMASS_CF,Aboveground biomass of crops foliage,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of crops foliage error estimate,gC/m2 (ground) AG_BIOMASS_CH,Aboveground biomass of crops harvest,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of crops harvest error estimate,gC/m2 (ground) AG_BIOMASS_CT,Aboveground biomass of crops total,gC/m2 (ground) Qualifier:SIGMA,Aboveground biomass of crops total error estimate,gC/m2 (ground) AG_BIOMASS_COMMENT,Aboveground biomass comments,free text LIT_MASS,Litter mass,gC/m2 (ground) Qualifier:SIGMA,Litter mass error estimate,gC/m2 (ground) Qualifier:COMMENT,Litter mass comments,free text CROP_RESID,Crop residue,gC/m2 (ground) Qualifier:SIGMA,Crop residue error estimate,gC/m2 (ground) Qualifier:COMMENT,Crop residue comments,free text CWD,Coarse woody debris,gC/m2 (ground) Qualifier:SIGMA,Coarse woody debris error estimate,gC/m2 (ground) Qualifier:COMMENT,Coarse woody debris comments,free text FWD,Fine woody debris,gC/m2 (ground) Qualifier:SIGMA,Fine woody debris error estimate,gC/m2 (ground) Qualifier:COMMENT,Fine woody debris comments,free text ST_MASS,Stump mass,gC/m2 (ground) Qualifier:SIGMA,Stump mass error estimate,gC/m2 (ground) Qualifier:COMMENTS,Stump mass comments,free text SNAG,Mass of standing dead trees,gC/m2 (ground) Qualifier:SIGMA,Mass of standing dead trees error estimate,gC/m2 (ground) Qualifier:COMMENT,Mass of standing dead trees comments,free text CR_BIOMASS,Coarse root biomass,gC/m2 (ground) Qualifier:SIGMA,Coarse root biomass error estimate,gC/m2 (ground) Qualifier:DEPTH,Coarse root biomass measurement depth,m Qualifier:HORIZON,Coarse root biomass horizon, FR_BIOMASS,Fine root biomass,gC/m2 (ground) Qualifier:SIGMA,Fine root biomass error estimate,gC/m2 (ground) Qualifier:DEPTH,Fine root biomass measurement depth,m Qualifier:HORIZON,Fine root biomass horizon, RT_BIOMASS,Total root biomass,gC/m2 (ground) Qualifier:SIGMA,Total root biomass error estimate,gC/m2 (ground) Qualifier:DEPTH,Total root biomass measurement depth,m Qualifier:HORIZON,Total root biomass horizon, R_BIOMASS_COMMENT,Root biomass comments,free text WOOD_INCR,Wood radial increment,mm Qualifier:SIGMA,Wood radial increment error estimate,mm Qualifier:COMMENT,Wood radial increment comments,free text AG_PROD_TF,Aboveground production of tree foliage,gC/m2 (ground) /y Qualifier:SIGMA,Aboveground production of tree foliage error estimate,gC/m2 (ground) /y AG_PROD_TW,Aboveground production of tree wood,gC/m2 (ground) /y Qualifier:SIGMA,Aboveground production of tree foliage error estimate,gC/m2 (ground) /y AG_PROD_TT,Aboveground production of tree total,gC/m2 (ground) /y Qualifier:SIGMA,Aboveground production of tree total error estimate,gC/m2 (ground) /y AG_PROD_SF,Aboveground production of shrub foliage,gC/m2 (ground) /y Qualifier:SIGMA,Aboveground production of shrub foliage error estimate,gC/m2 (ground) /y AG_PROD_SW,Annual aboveground production of shrub wood,gC/m2 (ground) /y Qualifier:SIGMA,Annual aboveground production of shrub wood error estimate,gC/m2 (ground) /y AG_PROD_ST,Aboveground production of shrub total,gC/m2 (ground) /y Qualifier:SIGMA,Aboveground production of shrub total error estimate,gC/m2 (ground) /y AG_PROD_NWT,Aboveground production of non-woody plants,gC/m2 (ground) /y Qualifier:SIGMA,Aboveground production of non-woody plants error estimate,gC/m2 (ground) /y AG_PROD_CF,Aboveground production of crops foliage,gC/m2 (ground) /y Qualifier:SIGMA,Aboveground production of crops foliage error estimate,gC/m2 (ground) /y AG_PROD_CH,Aboveground production of crops harvest,gC/m2 (ground) /y Qualifier:SIGMA,Aboveground production of crops harvest error estimate,gC/m2 (ground) /y AG_PROD_CT,Annual aboveground production of crops total,gC/m2 (ground) /y Qualifier:SIGMA,Annual aboveground production of crops total error estimate,gC/m2 (ground) /y AG_PROD_COMMENT,Aboveground production comments,free text CR_PROD,Coarse root production,gC/m2 (ground) /y Qualifier:SIGMA,Coarse root production error estimate,gC/m2 (ground) /y Qualifier:DEPTH,Coarse root production measurement depth,m Qualifier:HORIZON,Coarse root production horizon, FR_PROD,Fine root production,gC/m2 (ground) /y Qualifier:SIGMA,Fine root production error estimate,gC/m2 (ground) /y Qualifier:DEPTH,Fine root production measurement depth,m Qualifier:HORIZON,Fine root production horizon, RT_PROD,Total root production,gC/m2 (ground) /y Qualifier:SIGMA,Total root production error estimate,gC/m2 (ground) /y Qualifier:DEPTH,Total root production measurement depth,m Qualifier:HORIZON,Total root production horizon, R_PROD_COMMENT,Root production comments,free text NEP,Net ecosystem production,gC/m2 (ground) /y Qualifier:SIGMA,Net ecosystem production error estimate,gC/m2 (ground) /y Qualifier:YEAR,Net ecosystem year,YYYY Qualifier:DUR,Net ecosystem duration,free text Qualifier:COMMENT,Net ecosystem production comments,free text LIT_PROD,Litterfall,gC/m2 (ground) /y Qualifier:SIGMA,Litterfall error estimate,gC/m2 (ground) /y Qualifier:COMMENT,Litterfall comments,free text LMA,Leaf mass per unit leaf area,gC/m2 (leaf) Qualifier:SIGMA,Leaf mass per unit leaf area error estimate,gC/m2 (leaf) LMA_SPP,Leaf mass per unit leaf area species,NRCS code Qualifier:COMMENT,Leaf mass per unit leaf area comments,free text FOL_N,Foliage nitrogen concentration,gN/100g foliar mass Qualifier:SIGMA,Foliage nitrogen concentration error estimate,gN/100g foliar mass FOL_N_SPP,Foliage nitrogen concentration species,NRCS code Qualifier:COMMENT,Foliage nitrogen concentration comments,free text FOL_C,Foliage carbon concentration,gC/100g foliar mass Qualifier:SIGMA,Foliage carbon concentration error estimate,gC/100g foliar mass Qualifier:DATE,Foliage carbon concentration measurement date,DOY/YYYY FOL_C_SPP,Foliage carbon concentration species,NRCS code Qualifier:COMMENT,Foliage carbon concentration comments,free text WOOD_N,Woody tissue nitrogen concentration,gN/100g dry weight Qualifier:SIGMA,Woody tissue nitrogen concentration error estimate,gN/100g dry weight WOOD_N_SPP,Woody tissue nitrogen concentration species,NRCS code Qualifier:COMMENT,Woody tissue nitrogen concentration comments,free text WOOD_C,Woody tissue carbon concentration,gC/100g dry weight Qualifier:SIGMA,Woody tissue carbon concentration error estimate,gC/100g dry weight WOOD_C_SPP,Foliage carbon concentration species,NRCS code Qualifier:COMMENT,Woody tissue carbon concentration comments,free text LIT_N,Litter nitrogen concentration,gN/100g litter Qualifier:SIGMA,Litter nitrogen concentration error estimate,gN/100g litter Qualifier:COMMENT,Litter nitrogen concentration comments,free text LIT _C,Litter carbon concentration,gC/100g litter Qualifier:SIGMA,Litter carbon concentration error estimate,gC/100g litter Qualifier:COMMENT,Litter nitrogen concentration comments,free text ROOT_N,Root nitrogen concentration,gN/100g Qualifier:SIGMA,Root nitrogen concentration error estimate,gN/100g Qualifier:COMMENT,Root nitrogen concentration comments,free text ROOT_C,Root carbon concentration,gC/100g Qualifier:SIGMA,Root carbon concentration error estimate,gC/100g Qualifier:COMMENT,Root carbon concentration comments,free text SOIL_BD,Soil bulk density,g/cm3 Qualifier:SIGMA,Soil bulk density error estimate,g/cm3 Qualifier:PROFILE_MIN,Soil bulk density profile minimum depth,m Qualifier:PROFILE_MAX,Soil bulk density profile maximum depth,m Qualifier:HORIZON,Soil bulk density horizon,free text Qualifier:COMMENT,Soil bulk density comments,free text SOIL_C,Soil carbon content,kg/m2 Qualifier:SIGMA,Soil carbon content error estimate,kg/m2 Qualifier:PROFILE_MIN,Soil carbon content profile minimum depth,m Qualifier:PROFILE_MAX,Soil carbon content profile maximum depth,m Qualifier:HORIZON,Soil carbon content horizon,free text Qualifier:COMMENT,Soil carbon content comments,free text SOIL_N,Soil nitrogen content,kg/m2 Qualifier:SIGMA,Soil nitrogen content error estimate,kg/m2 Qualifier:PROFILE_MIN,Soil nitrogen content profile minimum depth,m Qualifier:PROFILE_MAX,Soil nitrogen content profile maximum depth,m Qualifier:HORIZON,Soil nitrogen content horizon,free text Qualifier:COMMENT,Soil nitrogen content comments,free text SOIL_PH,Soil PH,kg/m2 Qualifier:SIGMA,Soil PH error estimate,kg/m2 Qualifier:PROFILE_MIN,Soil PH profile minimum depth,m Qualifier:PROFILE_MAX,Soil PH profile maximum depth,m Qualifier:HORIZON,Soil PH horizon,free text Qualifier:COMMENT,Soil PH comments,free text SAND_PERC,Sand content,% Qualifier:SIGMA,Sand content error estimate,% Qualifier:PROFILE_MIN,Silt content profile minimum depth,m Qualifier:PROFILE_MAX,Silt content profile maximum depth,m Qualifier:HORIZON,Sand content horizon, SILT_PERC,Silt content,% Qualifier:PROFILE_MIN,Silt content profile minimum depth,m Qualifier:PROFILE_MAX,Silt content profile maximum depth,m Qualifier:SIGMA,Silt content error estimate,% Qualifier:HORIZON,Silt content horizon, CLAY_PERC,Clay content,% Qualifier:SIGMA,Clay content error estimate,% Qualifier:PROFILE_MIN,Clay content profile minimum depth,m Qualifier:PROFILE_MAX,Clay content profile maximum depth,m Qualifier:HORIZON,Clay content horizon, ROCK_PERC,Rock content,% Qualifier:SIGMA,Rock content error estimate,% Qualifier:PROFILE_MIN,Rock content profile minimum depth,m Qualifier:PROFILE_MAX,Rock content profile maximum depth,m Qualifier:HORIZON,Rock content horizon, SOIL_PERC_COMMENT,Soil (sand/silt/clay/rock) content comments,free text SOIL_DEPTH,Soil depth,m Qualifier:SIGMA,Soil depth error estimate,m Qualifier:COMMENT,Soil depth comments,free text SOIL_WATER_CAP,Soil water holding capacity,mm Qualifier:SIGMA,Soil water holding capacity error estimate,mm Qualifier:DEPTH,Soil water holding capacity measurement depth,m Qualifier:HORIZON,Soil water holding capacity horizon,free text Qualifier:COMMENT,Soil water holding capacity comments,free text SWC,Soil water content,m3/m3 Qualifier:SIGMA,Soil water content error estimate,m3/m3 Qualifier:DEPTH,Soil water content measurement depth,cm Qualifier:HORIZON,Soil water content horizon,free text Qualifier:COMMENT,Soil water content comments,free text Rs,Site-specific mean soil CO2 efflux,umol/m2 (ground) /s Qualifier:SIGMA,Site-specific mean soil CO2 efflux error estimate,umol/m2 (ground) /s Qualifier:COMMENT,Site-specific mean soil CO2 efflux and soil temperature comments,free text Ts,Soil temperature,deg C Qualifier:SIGMA,Soil temperature error estimate,deg C BUDBK_DATE,Budbreak date,DOY/YYYY Qualifier:SIGMA,Budbreak date error estimate,days BUDBK_SPP,Budbreak species,NRCS code Qualifier:COMMENT,Budbreak comments,free text COT_DATE,Cotyledons date,DOY/YYYY Qualifier:SIGMA,Cotyledons date error estimate,days COT_SPP,Cotyledons species,NRCS code Qualifier:COMMENT,Cotyledons comments,free text FLOWER_DATE,Flowering date,DOY/YYYY Qualifier:SIGMA,Flowering date error estimate,days FLOWER_SPP,Flowering species,NRCS code Qualifier:COMMENT,Flowering comments,free text LEAFFULL_DATE,Maximum leaf expansion date,DOY/YYYY Qualifier:SIGMA,Maximum leaf expansion date error estimate,days LEAFFULL_SPP,Maximum leaf expansion species,NRCS code Qualifier:COMMENT,Maximum leaf expansion comments,free text LEAFSEN_DATE,Leaf senescence date,DOY/YYYY Qualifier:SIGMA,Leaf senescence date error estimate,days LEAFSEN_SPP,Leaf senescence species,NRCS code Qualifier:COMMENT,Leaf senescence comments,free text LEAFOFF_DATE,Total leaf-off date,DOY/YYYY Qualifier:SIGMA,Total leaf-off date error estimate,days LEAFOFF_SPP,Total leaf-off species,NRCS code LEAFOFF_COMMENT,Total leaf-off comments,free text