WAT01 Konza Prairie Long-Term Irrigation Transect Study

Summary

Short name: 

WAT01

Abstract: 

In 1991, an irrigation transect experiment was established near the Konza Prairie HQ to assess the effects of supplemental water on ecological processes in tallgrass prairie. The site is burned annually in the spring. The transect spans upland, hillside and lowland topographic positions with irrigation and sampling points (12) located at 10 m intervals. Adjacent control transects are marked on both sides of the irrigation transect. Irrigation is scheduled according to estimates of actual evapotranspiration and measures of plant water status. In 1992, an additional 4 irrigation sprinklers were added to the transect (2 at each end). In 1993, a second line of sprinklers and control plots was added (#16-31). At the time of peak aboveground biomass (late August to October), six 0.1 m2 quadrats are harvested at each of the 30 sites (no #9 due to rock outcrop) for the irrigated and control/non-irrigated lines. Biomass is separated into live grass, forb and woody. As of 2006, c.dead is no longer separated from live grass. Vegetative species composition was initially measured in 1991 at each site, and continues to be measured at midseason by using a modified Daubenmire canopy coverage technique in a 10 m2 circular plot. At approximately 10 day intervals, predawn and midday plant water potentials are measured in Andropogon gerardii at each site in both irrigated and control transects. Since 1992, reproductive effort of the dominant grasses Andropogon gerardii (ANGE), Sorghastrum nutans (SONU), Schizachyrium scoparius (ANSC) has been assessed in irrigated and control transects by measuring heights (n=9) and densities (n=4) of flowering stalks. In 1993, soil moisture measurements at 15 and 30 cm depths were begun with a Time Domain Reflectometry system. Data set also includes measured natural precipitation and supplemental water added to the site.

DOI: 

10.6073/pasta/d1133dade92932f235525b3b045ff069

Data set ID: 

72

Data sources: 

Variables: 

RecYear
  • Label:
  • Definition: Year of sample
  • 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
Julian
  • Label:
  • Definition: julian day
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Rain
  • Label:
  • Definition: rain
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
IrrigU
  • Label:
  • Definition: irrigation upper land
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
IrrigL
  • Label:
  • Definition: irrigation lower land
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
RIU
  • Label:
  • Definition: rain and irrigation upper land
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
RIL
  • Label:
  • Definition: rain and irrigration lower land
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified
AccumR
  • Label:
  • Definition: accumation
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values: None specified

Variables: 

Datacode
  • Label:
  • Definition: dataset code
  • Type: Nominal
  • Missing values: None specified
Rectype
  • Label:
  • Definition: dataset record type
  • Type: Nominal
  • Missing values: None specified
RecYear
  • Label:
  • Definition: Year of sample
  • Type: Date/time
  • Date format: YYYY
  • 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
Transect
  • Label:
  • Definition: transact number
  • Type: Code list
  • Codes:
    • c = control
    • i = irrigrated
  • Missing values: None specified
Plot
  • Label:
  • Definition: Plot number
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
SpeciesNumber
  • Label:
  • Definition: species number
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Genus
  • Label:
  • Definition: genus
  • Type: Nominal
  • Missing values: None specified
Species
  • Label:
  • Definition: species
  • Type: Nominal
  • Missing values: None specified
Cover
  • Label:
  • Definition: Cover
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Comments
  • Label:
  • Definition: Comments
  • Type: Nominal
  • Missing values: None specified

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:
  • Definition: Year of sample
  • 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 (always HQ)
  • Type: Nominal
  • Missing values: None specified
Transect
  • Label:
  • Definition: transect
  • Type: Code list
  • Codes:
    • c = control
    • i = irrigrated
  • Missing values: None specified
Plot
  • Label:
  • Definition: plot number
  • Type: Nominal
  • Missing values: None specified
Replicate
  • Label:
  • Definition: replicate (a-f)
  • Type: Nominal
  • Missing values: None specified
Livegrass
  • Label:
  • Definition: mass of live grass
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Forbs
  • Label:
  • Definition: mass of forbs
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
CurrentDead
  • Label:
  • Definition: mass of current years' dead
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
PreviousDead
  • Label:
  • Definition: mass of previous year's dead
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Woody
  • Label:
  • Definition: mass of woody
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Comments
  • Label:
  • Definition: comments
  • Type: Nominal
  • Missing values: None specified

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:
  • Definition: Year of sample
  • Type: Date/time
  • Date format: YYYY
  • 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 (always HQ)
  • Type: Nominal
  • Missing values: None specified
Treatment
  • Label:
  • Definition: treatment
  • Type: Code list
  • Codes:
    • c = control
    • i = irrigrated
  • Missing values: None specified
Transect
  • Label:
  • Definition: transect
  • Type: Code list
  • Codes:
    • 1 = first transect
    • 2 = second transect
  • Missing values: None specified
Location
  • Label:
  • Definition: location
  • Type: Code list
  • Codes:
    • lw = lowland
    • up = upland
  • Missing values: None specified
Plot
  • Label:
  • Definition: plot
  • Type: Code list
  • Codes:
    • 1 = first plot sampled
    • 2 = second plot sampled
  • Missing values: None specified
TimeAP
  • Label:
  • Definition: time indicator
  • Type: Code list
  • Codes:
    • a = AM
    • p = PM
  • Missing values: None specified
Rep1
  • Label:
  • Definition: Replication 1
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Rep2
  • Label:
  • Definition: Replication 2
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Rep3
  • Label:
  • Definition: Replication 3
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Rep4
  • Label:
  • Definition: Replication 4
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Rep5
  • Label:
  • Definition: Replication 5
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Rep6
  • Label:
  • Definition: Replication 6
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Rep7
  • Label:
  • Definition: Replication 7
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Rep8
  • Label:
  • Definition: Replication 8
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Comments
  • Label:
  • Definition: comments
  • Type: Nominal
  • Missing values: None specified

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:
  • Definition: Year of sample
  • Type: Date/time
  • Date format: YYYY
  • 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
Transect
  • Label:
  • Definition: transect
  • Type: Code list
  • Codes:
    • c = control
    • i = irrigrated
  • Missing values: None specified
Plot
  • Label:
  • Definition: plot
  • Type: Nominal
  • Missing values: None specified
Quadrant
  • Label:
  • Definition: quadrant
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Species
  • Label:
  • Definition: species
  • Type: Nominal
  • Missing values: None specified
NumberofStalks
  • Label:
  • Definition: number of flowering stalks
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Height1
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Height2
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Height3
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Height4
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Height5
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Height6
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Height7
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Height8
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Height9
  • Label:
  • Definition: Height
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
Comments
  • Label:
  • Definition: comments
  • Type: Nominal
  • Missing values: None specified

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:
  • Definition: Year of sample
  • Type: Date/time
  • Date format: YYYY
  • 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
Treatment
  • Label:
  • Definition: treatment
  • Type: Code list
  • Codes:
    • c = control
    • i = irrigrated
  • Missing values: None specified
Location
  • Label:
  • Definition: location
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Depth
  • Label:
  • Definition: depth
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • 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
pH
  • Label:
  • Definition: ph
  • Type: Nominal
  • Missing values: None specified
P
  • Label:
  • Definition: Bray P
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • 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
C
  • Label:
  • Definition: Total carbon
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values: None specified
N
  • Label:
  • Definition: Total Nitrigen
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • 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
SO4
  • Label:
  • Definition: SO4
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
H2O
  • Label:
  • Definition: H2O
  • 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: 1
  • Missing values: None specified
Silt
  • Label:
  • Definition: silt%
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Clay
  • Label:
  • Definition: clay%
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 1
  • Missing values: None specified
Comments
  • Label:
  • Definition: comments
  • Type: Nominal
  • Missing values: None specified

Categories
Dates

Date Range: 

Wednesday, May 1, 1991 to Thursday, December 1, 2016

Publication Date: 

Thursday, March 30, 2017
People

Owner/Creator: 

Contact: 

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