Excel file with metadata and data sheets.
Extracellular enzyme activities in soils from Arctic LTER moist acidic tundra nutrient addition plots, Toolik Field Station, Alaska, sampled July 2011.
Download:
2011_MAT_89_06_NP_Enzyme_JCM.xlsx (140.03 KB)
Variables
Block
- Label: Block
- Definition: Arctic LTER blocks
- Type: Nominal
- Missing values: None specified
Soil Layer
- Label: Soil Layer
- Definition: Soil Layer
- Type: Code list
- Codes:
- O/M = Organic/Mineral
- Missing values: None specified
Plot Array
- Label: Plot Array
- Definition: Distinguished between 1989 and 2006 plots
- Type: Nominal
- Missing values: None specified
Treatment
- Label: Treatment
- Definition: Control vs +NP treatments for each plot array
- Type: Code list
- Codes:
- 1989 +NP = Fertilization treatment since 1989 | 2006 Low+NP = Low fertilization treatment since 2006 | 2006 High+NP = High fertilization treatment since 2006
- Missing values: None specified
Incubation Temperature
- Label: Incubation Temperature
- Definition: Incubation temperature in the lab
- Type: Physical quantity
- Unit: celsius
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -9999 = missing
BG
- Label: BG
- Definition: b-Glucosidase
- Type: Physical quantity
- Unit: micromolePerGramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -9999 = missing
CB
- Label: CB
- Definition: Cellulase
- Type: Physical quantity
- Unit: micromolePerGramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -9999 = missing
NAG
- Label: NAG
- Definition: Chitinase
- Type: Physical quantity
- Unit: micromolePerGramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -9999 = missing
PHOS
- Label: PHOS
- Definition: Phosphatase
- Type: Physical quantity
- Unit: micromolePerGramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -9999 = missing
XYL
- Label: XYL
- Definition: Xylosidase
- Type: Physical quantity
- Unit: micromolePerGramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -9999 = missing
AG
- Label: AG
- Definition: a-Glucosidase
- Type: Physical quantity
- Unit: micromolePerGramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -9999 = missing
LAP
- Label: LAP
- Definition: Protease
- Type: Physical quantity
- Unit: micromolePerGramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -9999 = missing