Biomass in wet sedge tundra near the Atigun River crossing of the Dalton Highway, North Slope AK, 1982.

Abstract: 

Biomass in wet sedge tundra near the Atigun River crossing of the Dalton Highway, North Slope AK. .There were three harvests; Late May-early June; Late July-early August; Late August-early September. See Shaver and Chapin (Ecological Monographs, 61, 1991 pp.1-31.

Project Keywords: 

Data set ID: 

1400

EML revision ID: 

9

Short name: 

1982gsasbm
People

Keywords: 

Arctic LTER keywords: 

Taxa: 

Dates

Date Range: 

Tuesday, June 1, 1982 to Wednesday, September 1, 1982

Publication Date: 

Thursday, December 12, 1991

Methods: 

Field- Samples are obtained by collecting all aboveground biomass and belowground stems and rhizomes in 20 x 20 cm quadrats, located randomly along line transects within the site. Normally, 4 or 5 quadrats are collected along each of 4 transects at each site or treatment. Aboveground biomass is considered "within" the quadrat if it is associated with a meristem that is within the quadrat. Details are given in Shaver and Chapin (Ecological Monographs, 61, 1991, pg. 1.)
Lab- Each quadrat is first sorted into species and then into tissue type. Depending on the harvest, tissue types can be broad categories, i.e. above and below, or more detailed, i.e. inflorescences, new growth, old growth, etc. The separated samples are dried for several days at approximately 65 ÂșC and then weighed. The dry weight for each quadrat, species and tissue type is recorded. Finally the samples from all quadrats in a transect are combined according to tissue type. Samples are then returned to Woods Hole for nutrient analysis.
This File covers three biomass harvests at the sedge site; early season, mid season, and late season.

Table 1: Biomass Harvests

Date Site Treatment
-------------------- ------------------------------- ----------------------------------
01-Jun-1982 Atigun Wet Sedge Control
Toolik Heath Control
Toolik Shrub Control
1981 Toolik Tussock Control
31-Jul-1982 Atigun Wet Sedge Control
Toolik Heath Control
1 981 Toolik Tussock Control
01-Sep-1982 Atigun Wet Sedge Control
1981 Toolik Tussock Control

Notes: This data was converted from old Multiplan files to Excel (April 1994). No documentation exists for the original Multiplan files. All files were converted to Excel 5.0. Excel worksheet names are similar to the original Multiplan filenames. This file (82gsasbm.dat) is the 'Wetnut' worksheet of the Excel 5.0 file. The Excel 5.0 file 82gsasbm.xls is also available.

Sites sampled.

Download a comma delimited (csv) or Excel file (includes metadata and data sheets).

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File 1982gsasbm.csv

Biomass in wet sedge... File Details

Office spreadsheet icon 1982gsasbm.xls

Excel file with... File Details

Variables Details

(Variables names are in the first line/row of the CSV file and Excel data sheet.)
Growth Form
  • Label: Growth Form
  • Definition: Plant growth form, i.e. graminoid, deciduous, evergeen, forb, mosses, lichen, algae.
  • Type: Nominal
  • Missing values: None specified
Species
  • Label: Species
  • Definition: Plant species or tissue subtotals
  • Type: Nominal
  • Missing values: None specified
Tissue
  • Label: Tissue
  • Definition: Plant part harvested.
  • Type: Nominal
  • Missing values: None specified
BMHI
  • Label: BMHI
  • Definition: Biomass in g/ m^2 for Harvest I
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
BMHII
  • Label: BMHII
  • Definition: Biomass in g/ m^2 for Harvest II
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
BMHIII
  • Label: BMHIII
  • Definition: Biomass in g/ m^2 for Harvest III
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
NMHI
  • Label: NMHI
  • Definition: Nitrogen mass in g/m^2 for Harvest I
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
NMHII
  • Label: NMHII
  • Definition: Nitrogen mass in g/m^2 for Harvest II
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
NMHIII
  • Label: NMHIII
  • Definition: Nitrogen mass in g/m^2 for Harvest III
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
PMHI
  • Label: PMHI
  • Definition: Phosphorus mass in g/m^2 for Harvest I
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
PMHII
  • Label: PMHII
  • Definition: Phosphorus mass in g/m^2 for Harvest II
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
PMHIII
  • Label: PMHIII
  • Definition: Phosphorus mass in g/m^2 for Harvest III
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
KMHI
  • Label: KMHI
  • Definition: Potassium mass in g/m^2 for Harvest I
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
KMHII
  • Label: KMHII
  • Definition: Potassium mass in g/m^2 for Harvest II
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
KMHIII
  • Label: KMHIII
  • Definition: Potassium mass in g/m^2 for Harvest III
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
CAMHI
  • Label: CAMHI
  • Definition: Calcium mass in g/m^2 for Harvest I
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
CAMHII
  • Label: CAMHII
  • Definition: Calcium mass in g/m^2 for Harvest II
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
CAMHIII
  • Label: CAMHIII
  • Definition: Calcium mass in g/m^2 for Harvest III
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
MGMHI
  • Label: MGMHI
  • Definition: Magnesium mass in g/m^2 for Harvest I
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
MGMHII
  • Label: MGMHII
  • Definition: Magnesium mass in g/m^2 for Harvest II
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
MGMHIII
  • Label: MGMHIII
  • Definition: Magnesium mass in g/m^2 for Harvest III
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified