HLF_CAN

HLF_CAN

Soil spectral library from High-Latitude Forests of North Canada (HLF_CAN)

VNIR NIR MIR
Local — Canada
<300 samples first release (v1) CC-BY

Database access

Data originally provided by:

Available files

Type Filename Link
MIR spectra — CSV (gzip) ossl_mir_v1.3.csv.gz Download
MIR spectra — Parquet ossl_mir_v1.3.parquet Download
Soil lab measurements — CSV (gzip) ossl_soillab_v1.3.csv.gz Download
Soil lab measurements — Parquet ossl_soillab_v1.3.parquet Download
Soil site metadata — CSV (gzip) ossl_soilsite_v1.3.csv.gz Download
Soil site metadata — Parquet ossl_soilsite_v1.3.parquet Download

Map

Soil site information

  • Coordinates precision: precise
  • Sampling depth: various
  • Geography: none
  • Variables available (OSSL): 7 out of 7 — see Database description for full schema
  • Populated columns: id.layer_uuid_txt, id.layer_local_c, longitude.point_wgs84_dd, latitude.point_wgs84_dd, id.dataset.site_ascii_txt, layer.upper.depth_usda_cm, layer.lower.depth_usda_cm

Soil laboratory information

  • Total samples: 289
  • Properties available (original): 20
  • Properties standardized (OSSL): 9 — summarized in Table 1 below
  • Categories: physical, chemical, hydrological, carbon & nutrients, metal elements
  • Original source: see Database access

Hover over any OSSL code in the table below to see its full description.

Table 1: Summary statistics (mean, SD, percentiles) for OSSL-standardized soil properties.
skim_variable n_missing mean sd p0 p25 p50 p75 p100
bd_iso.11272_g.cm3Bulk Density, ISO 11272Method: iso.11272Unit: g.cm3 0 1.27 0.25 0.38 1.17 1.33 1.44 1.72
n.tot_iso.13878_w.pctNitrogen, Total NCS, ISO 13878Method: iso.13878Unit: w.pct 23 0.10 0.09 0.02 0.04 0.07 0.14 0.68
c.tot_iso.10694_w.pctCarbon, Total NCS, ISO 10694Method: iso.10694Unit: w.pct 0 1.79 1.97 0.00 0.53 1.24 2.38 15.68
oc_iso.10694_w.pctOrganic Carbon, ISO 10694Method: iso.10694Unit: w.pct 0 1.56 1.87 0.07 0.31 0.90 2.13 11.84
ph.cacl2_iso.10390_indexpH, 1:5 Soil-CaCl2 Suspension, ISO 10390Method: iso.10390Unit: index 13 5.24 0.91 3.65 4.53 5.18 5.87 7.07
ec_iso.11265_ds.mElectrical Conductivity, ISO 11265Method: iso.11265Unit: ds.m 13 2.32 0.03 2.25 2.31 2.32 2.34 2.41
clay.tot_iso.11277_w.pctClay, ISO 11277Method: iso.11277Unit: w.pct 13 14.18 11.32 2.00 5.00 8.00 25.00 40.00
silt.tot_iso.11277_w.pctSilt, Total, ISO 11277Method: iso.11277Unit: w.pct 13 30.47 18.68 3.00 15.00 28.00 50.00 66.00
sand.tot_iso.11277_w.pctSand, Total, ISO 11277Method: iso.11277Unit: w.pct 13 54.16 29.64 12.00 23.75 65.00 81.00 95.00

MIR

  • Acquisition mode: Not available
  • Intensity: absorbance
  • Original range: 400-4000
  • Standardized range: 600-4000
  • Instrument: TENSOR 27 Spectrophotometer
  • Manufacturer: Bruker (Fällanden, Switzerland)
  • Scan accessory: Not available
  • Sample preparation: Oven dried, Sieved < 2 mm
  • Additional info: Original raw spectra (imported) and KBr background-corrected spectra

MIR plot

References

  1. Publication 1