Leave growth of Eriophorum angustifolium and Carex rotundata was measured in a long-term experimental wet sedge tundra site, Arctic LTER 1996, Toolik Lake, AK.

Abstract: 

Leave growth of Eriophorum angustifolium and Carex rotundata was measured in a long-term experimental wet sedge tundra site near Toolik Lake, AK. Experimental treatments at each site included factorial NxP, greenhouse and shadehouse and were begun in 1989 (Toolik sites).

Project Keywords: 

Data set ID: 

1415

EML revision ID: 

12

Short name: 

96gsgrow
People

Keywords: 

Arctic LTER keywords: 

Taxa: 

Dates

Date Range: 

Saturday, June 1, 1996 to Sunday, September 1, 1996

Publication Date: 

Saturday, December 12, 1998

Methods: 

Plots were setup as indicated below, with annual fertilization treatments of 10 g/m2 Nitrogen (as NH4NO3) and 5 g/m2 Phosphorous (as triple superphosphate) . Greenhouses and shadehouses were annually set up in late May or early June and removed in the end of August or early September.
Sites: Block 1 - Toolik Inlet (CT, N, P, NP, GH, GHNP, and Shade treatments)
Indicated as "Block 1"
Treatments began summer of 1989; one 5x10m
plot/treatment
Block 2 - Toolik Outlet (Same treatments)
"Block 2"
Treatments began summer of 1989; one 5x10m
plot/treatment

Notes: When measurements stopped due to tiller death or herbivory are marked with #N/A. Where cells where there are no values zeros are used. In cases where the total leaf length was unknown because of broken leaf tips the longest previous leaf length was used. In most cases these leaves had stopped growing.

Sampling Description.

Five individuals of each species in the control (CT), nitrogen and phosphorus fertilization (NP), greenhouse (GH), and greenhouse with nitrogen and phosphorus fertilization(GHNP) were randomly selected at each block. The tillers were tagged and labeled, with individuals numbered 1-5 at Block 1 and those number 6-10 at Block 2 The older leaves that had no visible green tissue were clipped at the base to equal lengths. The clipped leaves were used as the 0 point to measure the total length and green length of all of the remaining leaves. These measurements were taken every 10-12 days, with broken leaves, herbivory, and flower exertion noted.
(12) CALCULATIONS
All measurements are expressed in centimeters.
TTL was determined by adding together the total leaf lengths of all leaves at each survey date.
TGL was determined by adding together the green leaf lengths of all leaves at each survey date.
TSL was calculated by subtracting TTL from TGL.

Sites sampled.

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

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File 96gsgrow.csv

Leave growth of... File Details

Office spreadsheet icon 96gsgrow.xls

Excel file with... File Details

Variables Details

(Variables names are in the first line/row of the CSV file and Excel data sheet.)
Species
  • Label: Species
  • Definition: Plant species measured.
  • Type: Nominal
  • Missing values: None specified
Date
  • Label: Date
  • Definition: Dates that tiller was measured.
  • Type: Date/time
  • Date format: dd-mmm-yyyy
  • Missing values: None specified
Tiller
  • Label: Tiller
  • Definition: Experimental treatment and sampling number. See methods for description.
  • Type: Nominal
  • Missing values: None specified
LF1T
  • Label: LF1T
  • Definition: The total length of leaf number 1
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF1G
  • Label: LF1G
  • Definition: The green length of leaf number 1
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF2T
  • Label: LF2T
  • Definition: The total length of leaf number 2
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF2G
  • Label: LF2G
  • Definition: The green length of leaf number 2
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF3T
  • Label: LF3T
  • Definition: The total length of leaf number 3
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF3G
  • Label: LF3G
  • Definition: The green length of leaf number 3
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF4T
  • Label: LF4T
  • Definition: The total length of leaf number 4
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF4G
  • Label: LF4G
  • Definition: The green length of leaf number 4
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF5T
  • Label: LF5T
  • Definition: The total length of leaf number 5
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF5G
  • Label: LF5G
  • Definition: The green length of leaf number 5
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF6T
  • Label: LF6T
  • Definition: The total length of leaf number 6
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF6G
  • Label: LF6G
  • Definition: The green length of leaf number 6
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF7T
  • Label: LF7T
  • Definition: The total length of leaf number 7
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF7G
  • Label: LF7G
  • Definition: The green length of leaf number 7
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF8T
  • Label: LF8T
  • Definition: The total length of leaf number 8
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF8G
  • Label: LF8G
  • Definition: The green length of leaf number 8
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF9T
  • Label: LF9T
  • Definition: The total length of leaf number 9
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
LF9G
  • Label: LF9G
  • Definition: The green length of leaf number 9
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Comments
  • Label: Comments
  • Definition: Comments on individual data points.
  • Type: Nominal
  • Missing values: None specified
TTL
  • Label: TTL
  • Definition: The sum of the total leaf lengths.
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
TGL
  • Label: TGL
  • Definition: The sum of the green leaf lengths.
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
TSL
  • Label: TSL
  • Definition: The sum of the lengths of senescent tissue (expressed as a negative number)
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Time
  • Label: Time
  • Definition: The number of days since the beginning of the surveys.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
T#LVS
  • Label: T#LVS
  • Definition: The total number of leaves (at each survey date).
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
T#LLVS
  • Label: T#LLVS
  • Definition: The total number of leaves that have green tissue (at each survey date).
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
T#NLVS
  • Label: T#NLVS
  • Definition: The total number of new leaves (at each survey date).
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
T#OLVS
  • Label: T#OLVS
  • Definition: The total number of old leaves (at each survey date).
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured