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Harvard Forest

Data Archive

HF194

20-Year Synthesis of Soil Respiration Data at Harvard Forest 1991-2008

Related Publications

Data

Overview

Detailed Metadata

hf194-01: hf soil respiration synthesis

  1. date: date of measurement
  2. year: year of measurement
  3. doy: day of year (unit: nominalDay )
  4. time: time of measurement
  5. pi: last name of primary investigator
  6. site: name of site
  7. x.spmnad83: x coordinate of site in state plane meters (unit: meter / missing value: NA)
  8. y.spmnad83: y coordinate of site in state plane meters (unit: meter / missing value: NA)
  9. elevation: elevation of site (unit: meter / missing value: NA)
  10. block: treatment block
    • 1: Simes valley block, including canopy manipulation plots 1-3 and 8
    • 2: Simes ridge block, including canopy manipulation plots 4-7
    • NA: not applicable
  11. plot: plot number
  12. distance: distance from tower (LPH or Hemlock) (unit: meter / missing value: NA)
  13. transect: compass direction from Hemlock or LPH tower from geographic north (unit: degree / missing value: NA)
  14. site.desc: description of site
  15. soil.series: soils series name
  16. soil.drainage.class: soil drainage class
    • ED: excessively drained
    • WD: well drained
    • MWD: moderately well drained
    • SPD: somewhat poorly drained
    • PD: poorly drained
    • VPD: very poorly drained
  17. obs.exp: whether the measurement was observational or experimental
    • obs: observational
    • exp: experimental
  18. treat.level: level or type of treatment
  19. replicate: replicate number
  20. auto.manual: whether the chamber is automatic or manual
    • auto: automatic
    • manual: manual
  21. collar: collar number
  22. tsoil.1: soil temperature 1 (unit: celsius / missing value: NA)
  23. tsoil.1.depth: depth at which tsoil1 was measured (unit: centimeter / missing value: NA)
  24. tsoil.2: soil temperature 2 (unit: celsius / missing value: NA)
  25. tsoil.2.depth: depth at which tsoil2 was measured (unit: centimeter / missing value: NA)
  26. co2.flux: flux of carbon dioxide (soil respiration) (unit: micromolePerMeterSquaredPerSecond / missing value: NA)
  27. range.min: minimum CO2 concentration measured (ppm) (unit: dimensionless / missing value: NA)
  28. range.mean: mean CO2 concentration measured (ppm) (unit: dimensionless / missing value: NA)
  29. range.max: maximum CO2 concentration measured (ppm) (unit: dimensionless / missing value: NA)
  30. x.cutoff: time on the curve after which the mean of the 1st derivative was calculated (unit: second / missing value: NA)
  31. mean.slope: mean of the 1st derivative (ppm/s) (unit: dimensionless / missing value: NA)
  32. stdev.slope: standard deviation of the 1st derivative (ppm/s) (unit: dimensionless / missing value: NA)
  33. n.pts: number of points used to calculate the mean of the 1st derivative (unit: number / missing value: NA)
  34. flag.stdev: flag for when the relative standard deviation is less than 1
  35. collar.height: collar height (unit: meter / missing value: NA)
  36. subplot: ant manipulation sub-plot group. Levels are A and B (two groups per canopy manipulation plot)
    • a: subplot A
    • b: subplot B
    • NA: not applicable
  37. subplot.t: sub-plot-level treatment
    • c: control
    • d: disturbance control
    • x: exclosure
    • NA: not applicable
  38. notes: notes

hf194-02: data and Matlab code to accompany Ecosphere publication