Hyperspectral reflectance values and biophysicochemical properties of biocrusts and soils in the Fryxell Basin, McMurdo Dry Valleys, Antarctica (2019)

Summary

Abstract: 

This data package includes ecological parameters of biocrust and soil from samples collected in-situ within the Lake Fryxell Basin of the McMurdo Dry Valleys, Antarctica during December of 2019. Parameters include biological (ash-free dry mass, pigment concentration, and counts of soil invertebrates), physical (water content, electrical conductivity, and pH), and chemical properties (inorganic nitrogen, inorganic phosphorous, total nitrogen, and total organic carbon) of the surface soil, biocrust, and underlying soil. This data package also contains reflectance measurements of biocrust, soil, and granite samples acquired in a laboratory using a hyperspectral spectrometer. Included are hyperspectral reflectance measurements of a laboratory study using a variety of mixtures of soil and biocrust (0 – 100% biocrust), as well as reflectance measurements of individual grab samples collected from each of the field plots. These data aid our understanding of the ecological structure and functioning of biocrust microhabitats as well as the location of these communities throughout the Lake Fryxell Basin. This work also aims to assist in understanding the carbon budget of the basin and highlight the importance of these snowpack-fed biocrust communities, which are understudied but likely an important piece of the overall carbon budget in this region.

Date Range: 

December 21, 2019 to December 28, 2019
Data Citation
Power, S.N., Salvatore, M.R., Adams, B.J., Barrett, J.E. 2023. Hyperspectral reflectance values and biophysicochemical properties of biocrusts and soils in the Fryxell Basin, McMurdo Dry Valleys, Antarctica (2019). Environmental Data Initiative. DOI: 10.6073/pasta/a34f2a95ddae3f471fea0cab90a1e287. Dataset accessed 16 June 2024.
Dataset(s)

Variables (click to expand): 

dataset_code
  • Label: Dataset code
  • Definition: Internal dataset code.
  • Type: Nominal
  • Missing values: None specified
plot_id
  • Label: Plot ID
  • Definition: Plot identifier. Refer to the "plot" dataset for additional metadata.
  • Type: Nominal
  • Missing values: None specified
replicate
  • Label: Replicate
  • Definition: Sample replicate number.
  • Type: Nominal
  • Missing values: None specified
afdm
  • Label: Ash-free dry mass
  • Definition: Ash-free dry mass (AFDM) content of the sample.
  • Type: Physical quantity
  • Unit: milligramsPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
chla
  • Label: Chlorophyll-a
  • Definition: Chlorophyll-a (Chl-a) concentration of the sample.
  • Type: Physical quantity
  • Unit: microgramsPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
caro
  • Label: Carotenoid
  • Definition: Carotenoid concentration of the sample.
  • Type: Physical quantity
  • Unit: microgramsPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
scyto
  • Label: Scytonemin
  • Definition: Scytonemin concentration of the sample.
  • Type: Physical quantity
  • Unit: microgramsPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
remarks
  • Label: Remarks
  • Definition: Remarks regarding missing values.
  • Type: Nominal
  • Missing values: None specified

Variables (click to expand): 

dataset_code
  • Label: Dataset code
  • Definition: Internal dataset code.
  • Type: Nominal
  • Missing values: None specified
plot_id
  • Label: Plot ID
  • Definition: Plot identifier. Refer to the "plot" dataset for additional metadata.
  • Type: Nominal
  • Missing values: None specified
replicate
  • Label: Replicate
  • Definition: Sample replicate number.
  • Type: Nominal
  • Missing values: None specified
SML
  • Label: Scottnema Male Live
  • Definition: The total number of living male Scottnema lindsayae adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
smd
  • Label: Scottnema Male Dead
  • Definition: The total number of dead male Scottnema lindsayae adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
sfl
  • Label: Scottnema Female Live
  • Definition: The total number of living female Scottnema lindsayae adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
sfd
  • Label: Scottnema Male Dead
  • Definition: The total number of dead female Scottnema lindsayae adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
sjl
  • Label: Scottnema Juvenile Live
  • Definition: The total number of living juvenile Scottnema lindsayae nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
sjd
  • Label: Scottnema Juvenile Dead
  • Definition: The total number of dead juvenile Scottnema lindsayae nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
sa
  • Label: Scottnema Adult
  • Definition: The total number of living and dead Scottnema lindsayae adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
sj
  • Label: Scottnema Juvenile
  • Definition: The total number of living and dead Scottnema lindsayae juvenile nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
stl
  • Label: Scottnema Total Live
  • Definition: The total number of living Scottnema lindsayae (juvenile and adult) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
std
  • Label: Scottnema Total Dead
  • Definition: The total number of dead Scottnema lindsayae (juvenile and adult) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
stld
  • Label: Total Scottnema Live and Dead
  • Definition: The total number of live + dead Scottnema lindsayae (juvenile and adult) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
eml
  • Label: Eudorylaimus Male Live
  • Definition: The total number of living male Eudorylaimus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
emd
  • Label: Eudorylaimus Male Dead
  • Definition: The total number of dead male Eudorylaimus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
efl
  • Label: Eudorylaimus Female Live
  • Definition: The total number of living female Eudorylaimus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
efd
  • Label: Eudorylaimus Female Dead
  • Definition: The total number of dead female Eudorylaimus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
ejl
  • Label: Eudorylaimus Juvenile Live
  • Definition: The total number of living juvenile Eudorylaimus spp. nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
ejd
  • Label: Eudorylaimus Juvenile Dead
  • Definition: The total number of dead juvenile Eudorylaimus spp. nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
ea
  • Label: Eudorylaimus Adult
  • Definition: The total number of living and dead Eudorylaimus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
ej
  • Label: Eudorylaimus Juvenile
  • Definition: The total number of living and dead Eudorylaimus spp. juvenile nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
etl
  • Label: Eudorylaimus Total Live
  • Definition: Total number of living Eudorylaimus spp. (juvenile and adults) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
etd
  • Label: Eudorylaimus Total Dead
  • Definition: The total number of dead Eudorylaimus spp. (juvenile and adults) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
etld
  • Label: Total Eudorylaimus Live and Dead
  • Definition: The total number of live + dead Eudorylaimus spp. (juvenile and adults) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
pfl
  • Label: Plectus Female Live
  • Definition: The total number of living female Plectus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
pfd
  • Label: Plectus Female Dead
  • Definition: The total number of dead female Plectus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
pjl
  • Label: Plectus Juvenile Live
  • Definition: The total number of living juvenile Plectus spp. nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
pjd
  • Label: Plectus Juvenile Dead
  • Definition: The total number of dead juvenile Plectus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
pa
  • Label: Plectus Adult
  • Definition: The total number of living and dead Plectus spp. adult nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
pj
  • Label: Plectus Juvenile
  • Definition: The total number of living and dead Plectus spp. juvenile nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
ptl
  • Label: Plectus Total Live
  • Definition: Total number of living Plectus spp. (juvenile and adults) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
ptd
  • Label: Plectus Total Dead
  • Definition: The total number of dead Plectus spp. (juvenile and adults) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
ptld
  • Label: Plectus Total Live and Dead
  • Definition: The total number of live + dead Plectus spp. (juvenile and adults) nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
total_rotifers
  • Label: Total Rotifers
  • Definition: Total number of rotifers per kg soil oven dry weight equivalent present in a sample.
  • Type: Nominal
  • Missing values: None specified
total_tardigrades
  • Label: Total Tardigrades
  • Definition: Total number of tardigrades per kg soil oven dry weight equivalent present in a sample.
  • Type: Nominal
  • Missing values: None specified
total_live
  • Label: Total Living Nematodes
  • Definition: The total number of living nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
total_dead
  • Label: Total Dead Nematodes
  • Definition: The total number of dead nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
total
  • Label: Total
  • Definition: The total number of living and dead nematodes extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
other
  • Label: Other
  • Definition: The total number of other organisms extracted from the soil sample in number of organisms per kg soil oven dry weight equivalent.
  • Type: Nominal
  • Missing values: None specified
remarks
  • Label: Remarks
  • Definition: Sample remarks.
  • Type: Nominal
  • Missing values: None specified

Variables (click to expand): 

dataset_code
  • Label: Dataset code
  • Definition: Internal dataset code.
  • Type: Nominal
  • Missing values: None specified
plot_id
  • Label: Plot ID
  • Definition: Plot identifier. Refer to the "plot" dataset for additional metadata.
  • Type: Nominal
  • Missing values: None specified
band_um
  • Label: Band
  • Definition: Wavelength band of reflectance. Wavelengths span 0.4 - 2.5 micrometers at 0.001 um increments.
  • Type: Physical quantity
  • Unit: micrometer
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
reflectance
  • Label: Reflectance
  • Definition: Reflectance values (unitless) associated with each band and measurement.
  • Type: Nominal
  • Missing values: None specified

Variables (click to expand): 

dataset_code
  • Label: Dataset code
  • Definition: Internal dataset code.
  • Type: Nominal
  • Missing values: None specified
moisture_level
  • Label: Moisture level
  • Definition: Moisture level of sample (either "dry" or "damp"). The targeted water content for damp samples was approximately 0.25 GWC (g H2O/g dry soil and biocrust material).
  • Type: Nominal
  • Missing values: None specified
biocrust_pct
  • Label: Biocrust percentage
  • Definition: Percentage of biocrust by weight in laboratory mixtures of soil and biocrust.
  • Type: Nominal
  • Missing values: None specified
band_um
  • Label: Band
  • Definition: Wavelength band of reflectance. Wavelengths span 0.4 - 2.5 micrometers at 0.001 um increments.
  • Type: Physical quantity
  • Unit: micrometer
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
reflectance
  • Label: Reflectance
  • Definition: Reflectance values (unitless) associated with each band and measurement.
  • Type: Nominal
  • Missing values: None specified

Variables (click to expand): 

dataset_code
  • Label: Dataset code
  • Definition: Internal dataset code.
  • Type: Nominal
  • Missing values: None specified
plot_id
  • Label: Plot ID
  • Definition: Plot identifier. Refer to the "plot" dataset for additional metadata.
  • Type: Nominal
  • Missing values: None specified
replicate
  • Label: Replicate
  • Definition: Sample replicate number.
  • Type: Nominal
  • Missing values: None specified
gwc
  • Label: Gravimetric water content
  • Definition: Gravimetric water content (GWC) of the sample, expressed in grams of water per gram of dry soil.
  • Type: Physical quantity
  • Unit: gramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ec
  • Label: Electrical conductivity
  • Definition: Electrical conductivity (EC) of the sample.
  • Type: Physical quantity
  • Unit: microSiemensPerSquareCentimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ph
  • Label: pH
  • Definition: pH of the sample.
  • Type: Nominal
  • Missing values: None specified
nh4
  • Label: Ammonium
  • Definition: Inorganic nitrogen concentration of the sample in the form of ammonium (NH4+), expressed in micrograms of N per gram of dry soil.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
no3
  • Label: Nitrate
  • Definition: Inorganic nitrogen concentration of the sample in the form of nitrate (NO3-), expressed in micrograms of N per gram of dry soil.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
po4
  • Label: Phosphate
  • Definition: Inorganic phosphorus concentration of the sample in the form of phosphate (PO43-), expressed in micrograms of P per gram of dry soil.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
toc
  • Label: Total organic carbon
  • Definition: Total organic carbon concentration of the sample, expressed in milligrams of C per gram of dry soil.
  • Type: Physical quantity
  • Unit: milligramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
tn
  • Label: Total nitrogen
  • Definition: Total nitrogen concentration of the sample, expressed in milligrams of N per gram of dry soil.
  • Type: Physical quantity
  • Unit: milligramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified

Variables (click to expand): 

dataset_code
  • Label: Dataset code
  • Definition: Internal dataset code.
  • Type: Nominal
  • Missing values: None specified
plot_id
  • Label: Plot ID
  • Definition: Plot identifier.
  • Type: Nominal
  • Missing values: None specified
latitude
  • Label: Latitude
  • Definition: Latitude of plot in decimal degrees.
  • Type: Nominal
  • Missing values: None specified
longitude
  • Label: Longitude
  • Definition: Longitude of plot in decimal degrees.
  • Type: Nominal
  • Missing values: None specified
surface_type
  • Label: Surface type
  • Definition: Plot surface type, either "biocrust", "soil", or "oxidized granite".
  • Type: Nominal
  • Missing values: None specified
visual_biocrust_rank
  • Label: Visual biocrust rank
  • Definition: Visual assessment ranking of biocrust coverage in the plot.
  • Type: Code list
  • Codes:
    • 0 = Biocrust not present
    • 1 = Biocrust possibly present
    • 2 = Biocrust likely present
    • 3 = Biocrust present
  • Missing values: None specified

Short name: 

soils_biocrust

Dataset ID: 

270