NSC01 Chemistry and Physical Characteristics of Soils from Konza LTER Watersheds with different fire and grazing treatments

Summary

Short name: 

NSC01

Abstract: 

Soil chemical and physical characteristics are quantified on selected LTER watersheds adjacent to LTER vegetation sampling plots. Sampling was initiated in 1982, and is repeated every five years. A subset of variables (e.g., pH, Bray extractable P, total C, exchangeable cations) is measured on all sample dates, while additional specific variables (e.g., bulk density, soil texture, CaCO3 content, trace metals, extractable inorganic N) are measured less frequently. Methods for C and N analysis have changed over time. C content of samples from 1982, 1987 and 1997 was derived from Walkley-Black measurements of % soil organic matter (OM) content, using a conversion factor of 1.72 (%C = %OM / 1.72). Soil C content of samples from 1992, 2002 and later were determined by dry combustion and gas chromatography (i.e., Carlo-Erba C/N analyzer). N content of samples prior to 1992 was based on Kjeldahl digeston. N content of samples from 1992 on were determined by dry combustion and gas chromatography (i.e., Carlo-Erba C/N analyzer). Additional details regarding sampling protocols and analytical methods are available in the Konza LTER Methods Manual.

DOI: 

10.6073/pasta/dbe5138bad34d0215cede0146fa75c46

Data set ID: 

47

Data sources: 

Variables: 

DataCode
  • Label:
  • Definition: Dataset code
  • Type: Nominal
  • Missing values: None specified
RecType
  • Label:
  • Definition: Record type
  • Type: Nominal
  • Missing values: None specified
RecYear
  • Label: RecYear
  • Definition: Year of record
  • Type: Physical quantity
  • Unit: Year (YYYY)
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
RecMonth
  • Label:
  • Definition: Month of record
  • Type: Date/time
  • Date format: MM
  • Missing values: None specified
RecDay
  • Label:
  • Definition: Day of record
  • Type: Date/time
  • Date format: DD
  • Missing values: None specified
Watershed
  • Label:
  • Definition: watershed
  • Type: Nominal
  • Missing values: None specified
Soil
  • Label:
  • Definition: soil type
  • Type: Nominal
  • Missing values: None specified
Rep
  • Label:
  • Definition: replication
  • Type: Nominal
  • Missing values: None specified
Depth
  • Label:
  • Definition: depth
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
pH
  • Label:
  • Definition: ph
  • Type: Nominal
  • Missing values: None specified
BrayP
  • Label:
  • Definition: bray p
  • Type: Physical quantity
  • Unit: ppm
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Na
  • Label:
  • Definition: Na
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
K
  • Label:
  • Definition: K
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Mg
  • Label:
  • Definition: Mg
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Ca
  • Label:
  • Definition: Ca
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
TotalC
  • Label:
  • Definition: Total C
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
TotalN
  • Label:
  • Definition: Total N
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
NH4
  • Label:
  • Definition: NH4
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
NO3
  • Label:
  • Definition: NO3
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
CEC
  • Label:
  • Definition: Cation exchange capacity
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
CaCO3
  • Label:
  • Definition: Calcium carbonate
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
SO4
  • Label:
  • Definition: SO4
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Zn
  • Label:
  • Definition: Zn
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
Cu
  • Label:
  • Definition: Cu
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
Fe
  • Label:
  • Definition: Fe
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
Mn
  • Label:
  • Definition: Mn
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
BD
  • Label:
  • Definition: BD
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
H2O
  • Label:
  • Definition: H2)
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Sand
  • Label:
  • Definition: sand%
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
Silt
  • Label:
  • Definition: silt%
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
Clay
  • Label:
  • Definition: clay%
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
Comments
  • Label:
  • Definition: comments
  • Type: Nominal
  • Missing values: None specified

Categories
Dates

Date Range: 

Monday, January 4, 1982 to Friday, October 30, 2015

Publication Date: 

Tuesday, January 10, 2017
People

Owner/Creator: 

Contact: 

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