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Metadata Date (at beginning and end of data collection) (year, month, date) Growing season ? (yes or no) GPS location (in decimal degrees) In situ or pot? Species ID (family, genus, species) Plant functional type Growth form C3/C4/ Cyad Angiosperm/ gymnosperm Deciduous/evergreen - PowerPoint PPT Presentation
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• Metadata– Date (at beginning and end of
data collection) (year, month, date)
– Growing season? (yes or no)– GPS location (in decimal
degrees)– In situ or pot?– Species ID (family, genus,
species)– Plant functional type– Growth form– C3/C4/Cyad– Angiosperm/ gymnosperm– Deciduous/evergreen– Contributor– Citation– Site ID
– Root order– Functional classification– Soil depth ( upper and
lower) (cm)– Depth of field (mm)– Treatment, extent of
treatment, and unit for extent
– Collection method– Soil block dimensions
(length, width, height) (cm)– Calculation method– Latitude, longitude– Stand age (yr)– Location notes– notes
• Morphology– Root diameter (mm)– Specific root length (SRL) (m
g-1)– Root tissue density (RTD) (g
cm-1)– Branching intensity (# roots
per higher order root)– Branching architecture (root
length per higher order root)– Type of mycorrhizae (AM or
EM)– % EM colonization (% tips
colonized)– % AM colonization (% length
colonized)
• Anatomy– Stele diameter (µm)– Cortex diameter (µm)– Root porosity (aerenchyma
area)– Vessel diameter (µm)– Phellem
• Standing Biomass– Absolute biomass (g m-2)– % total biomass (by order,
diameter, and functional class)
– Annual production (g m-2)– Annual mortality (g m-2 year-1)– Biomass turnover (g m-2a-1)
• Chemistry– Root C, N, K, P, Al, Ca, Mg
(mg g-1)– Root Cr, Ni, Cu, Zn, As, Cd,
Pb (mg kg-1)– C:N ratio– C storage (kg C hm-2)– Ion concentration (Na+ and
Cl-) (mg g d.wt-1)– Lignin– Cellulose– Hemi-cellulose– Carbohydrates (TNC)(mg g-1)– Isotopic concentration
Mean root stable δ15N (%)
• Dynamics– Survivorship (roots year-1)– Growing season survivorship (%
growing season-1)– Phenology production– Phenology mortality– Lifespan (days)– Turnover rate (% growing season-
1)
• Function– Respiration rate (nmol O2 g-1 s-1)– Respiration rate by mass (nmol s-1
m-2)– Nutrient uptake– Water uptake– Exudate rate– Oxygenation rate– Enzyme production– Conductance
• Soil dynamics– Soil temperature (°C)– Volumetric soil water content
(%)– Oxygen availability– Soil respiration– Mineralization rate
• Climate– Mean annual precipitation (mm)– Min & max monthly
temperature (°C)– Mean annual temperature (°C)– Chamber temperature (day,
night) (°C)
• Other site characteristics– Elevation (m above sea level)– Slope (°)
• Soils– pH– Textural class– Soil horizon– % sand, silt, clay, and SOM– Bulk density (g cm-3)– Soil N and P (g kg-1)– Al:Ca ratio– Cation exchange capacity (CEC)
(meq cg-1)– % base cation saturation– Elemental concentration (total
and exchangeable)– Redox potential (mV)
• Vegetation– Basal area (total and by species)– LAI (total and by species)– Photosynthesis