WER01 Elevated CO2 counteracts effects of water stress on woody rangeland-encroaching species at Konza Prairie

Summary

Short name: 

WER01

Abstract: 

Woody plants are increasing prevalence and dominance in many rangelands around the world. The reason for their increase is various but two common drivers that have changed are an increase in CO2 concentrations and alteration to precipitation dynamics. We asked what the physiological growth dynamics of four juvenile woody plant species (Cornus drummondii, Rhus glabra, Gleditsia triacanthos and Juniperus osteosperma) when grown in elevated CO2 and chronically water stressed. We found that elevated CO2 counteracts much of the physiological effects of chronic water stress in the four different woody plant species measured. The alleviation of water stress from increased CO2 concentrations will result in juvenile woody plants continuing to expand and establish in North American rangelands. This information will aid land managers in making long-term management objectives for reducing woody plants in rangelands.

Published on EDI/LTER Data Portal

Citation Suggestion: 

O'connor, R., Ocheltree, T. ., Blumenthal, D., Nippert, J. 2021. WER01 Elevated CO2 counteracts effects of water stress on woody rangeland-encroaching species at Konza Prairie . Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/4f9d285275ba5458fee8161d7132341d.

Data set ID: 

156

EML revision ID: 

1

Data sources: 

Variables: 

DataCode
  • Label:
  • Definition: Dataset code
  • Type: Nominal
  • Missing values: None specified
RecType
  • Label:
  • Definition: dataset record type
  • Type: Nominal
  • Missing values: None specified
RecDate
  • Label:
  • Definition: Date gas exchange samples were collected (YYYY-MM-DD)
  • Type: Date/time
  • Date format: YYYY-MM-DD
  • Missing values: None specified
Project_Day
  • Label:
  • Definition: Day since start of growing woody plant juveniles in the two different CO2 concentration treatments.
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Unit
  • Label:
  • Definition: LI-6400 unit used for making the gas exchange measurements.
  • Type: Nominal
  • Missing values: None specified
CO2_trt
  • Label:
  • Definition: CO2 concentration treatments (400 ppm & 800 ppm)
  • Type: Physical quantity
  • Unit: partsPerMillion
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
H2O_trt
  • Label:
  • Definition: Water stress treatment (< 10% VWC for Juniperus osteosperma & < 20% VWC for Cornus drummondii, Gleditsia triacanthos, Rhus glabra), or control (well-watered)
  • Type: Nominal
  • Missing values: None specified
Species
  • Label:
  • Definition: Woody plant species: Cornus drummondii, Gleditsia triacanthos, Juniperus osteosperma, and Rhus glabra
  • Type: Nominal
  • Missing values: None specified
Block
  • Label:
  • Definition: Block of woody plant species in each greenhouse bay
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Replicate
  • Label:
  • Definition: The sample of each woody plant species randomly chosen for gas exchange measurements
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
A_net
  • Label:
  • Definition: Net photosynthetic rate (μmol m^-2 s^-1)
  • Type: Physical quantity
  • Unit: micromolesPerSquareMeterPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
g_s
  • Label:
  • Definition: Stomatal conductance (mols m^-2 s^-1)
  • Type: Physical quantity
  • Unit: molesPerSquareMeterPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Ci
  • Label:
  • Definition: Intercellular CO2 concentration (μmol mol^-1)
  • Type: Physical quantity
  • Unit: micromolesPermole
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Area
  • Label:
  • Definition: Area
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • 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
RecDate
  • Label:
  • Definition: Date gas exchange samples were collected (YYYY-MM-DD)
  • Type: Date/time
  • Date format: YYYY-MM-DD
  • Missing values: None specified
Species
  • Label:
  • Definition: Woody plant species: Cornus drummondii, Gleditsia triacanthos, Juniperus osteosperma, and Rhus glabra
  • Type: Nominal
  • Missing values: None specified
CO2_trt
  • Label:
  • Definition: CO2 concentration treatments (400 ppm & 800 ppm)
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
H2O_trt
  • Label:
  • Definition: Water stress treatment (< 10% VWC for Juniperus osteosperma & < 20% VWC for Cornus drummondii, Gleditsia triacanthos, Rhus glabra), or control (well-watered)
  • Type: Nominal
  • Missing values: None specified
Block
  • Label:
  • Definition: Block of woody plant species in each greenhouse bay
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Replicate
  • Label:
  • Definition: The sample of each woody plant species randomly chosen for gas exchange measurements
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
WaterLoss
  • Label:
  • Definition: Calculated water loss values from last watering event prior to end of experiment (current pot weight - target pot weight), values are given in grams.
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Leaf_biomass
  • Label:
  • Definition: Dried biomass of woody plant species in grams.
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Stem_biomass
  • Label:
  • Definition: Dried biomass of woody plant species in grams.
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Root_biomass
  • Label:
  • Definition: Dried biomass of woody plant species in grams.
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • 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
RecDate
  • Label:
  • Definition: Date gas exchange samples were collected (YYYY-MM-DD)
  • Type: Date/time
  • Date format: YYYY-MM-DD
  • Missing values: None specified
Species
  • Label:
  • Definition: Woody plant species: Cornus drummondii, Gleditsia triacanthos, Juniperus osteosperma, and Rhus glabra
  • Type: Nominal
  • Missing values: None specified
CO2_trt
  • Label:
  • Definition: CO2 concentration treatments (400 ppm & 800 ppm)
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
H2O_trt
  • Label:
  • Definition: Water stress treatment (< 10% VWC for Juniperus osteosperma & < 20% VWC for Cornus drummondii, Gleditsia triacanthos, Rhus glabra), or control (well-watered)
  • Type: Nominal
  • Missing values: None specified
Block
  • Label:
  • Definition: Block of woody plant species in each greenhouse bay
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Replicate
  • Label:
  • Definition: The sample of each woody plant species randomly chosen for gas exchange measurements
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
WaterLoss
  • Label:
  • Definition: Calculated water loss values from last watering event prior to end of experiment (current pot weight - target pot weight), values are given in grams.
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Leaf_starch
  • Label:
  • Definition: These values are on a per mass dry weight basis (mg g^-1).
  • Type: Physical quantity
  • Unit: milligramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Stem_starch
  • Label:
  • Definition: These values are on a per mass dry weight basis (mg g^-1).
  • Type: Physical quantity
  • Unit: milligramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Root_starch
  • Label:
  • Definition: These values are on a per mass dry weight basis (mg g^-1).
  • Type: Physical quantity
  • Unit: milligramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified

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