University of Minnesota
University of Minnesota
College of Biological Sciences
http://www.cbs.umn.edu/

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BioCON : Biodiversity, Elevated CO2, and N Enrichment - Experiment 141


Photosynthesis Leaf Carbon and Nitrogen

Years Available: 1998 - 2008

Principle Investigators

Lee, Tali

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1YearYear
2PlotPlot
3RingRing
4CO2TreatmentCedar Creek CO2 TreatmentCenriched=564ppm, Camb=ambient Carbon
5NitrogenTreatmentNitrogen treatmentNenrich=4g NH4NO3 per MeterSquared per year, Namb=Ambient Nitrogen
6CountOfSpeciesCount Of Species planted in plot as assigned by e141 diversity treatmentdimensionless
7MeasuredSpeciesSpecies used in photosynthetic measurement/leaf CN analysis
8MeasuredGroupFunctional group of species used in photosynthetic measurement/leaf CN analysis
9SampleTypeRelationship to associated photosythesis repeated measurementsdiscrete= yr-date-plot-species-single rep, composite=yr-date-plot-species-combined reps
10PhotoRepAssociated photosynthesis measurement for each plot/species in each campaign; "C" indicates a composited sample across reps
11%N% nitrogen in leaf tissue dimensionless
12%C% carbon in leaf tissue dimensionless
13C:Ncarbon to nitrogen ratiodimensionless
14mgN/glfmilligrams of Nitrogen/gram of leafdimensionless
15gN/m2grams of Nitrogen/m2 leaf dimensionless
16Date1Date of related photo measurement for leaf CN
17Date2Date of related photo measurement for leaf CN
18Date3Date of related photo measurement for leaf CN
19Date4Date of related photo measurement for leaf CN
20Date5Date of related photo measurement for leaf CN
 

SAMPLE DATASET

YearPlotRingCO2TreatmentNitrogenTreatmentCountOfSpeciesMeasuredSpeciesMeasuredGroupSampleTypePhotoRep%N%CC:NmgN/glfgN/m2Date1Date2Date3Date4Date5
1998491CenrichNenrich1Achillea millefoliumforbdiscrete11.243.63711.81.66/26/1998
1998491CenrichNenrich1Achillea millefoliumforbdiscrete21.643.826.616.41.47/1/1998
1998491CenrichNenrich1Achillea millefoliumforbdiscrete31.945.423.9191.87/8/1998
1998491CenrichNenrich1Achillea millefoliumforbdiscrete41.34433.8131.17/16/1998
19981593CenrichNamb1Achillea millefoliumforbdiscrete11.443.532.113.51.46/26/1998
19981593CenrichNamb1Achillea millefoliumforbdiscrete21.141.337.211.11.17/4/1998
19981593CenrichNamb1Achillea millefoliumforbdiscrete31.444.431.514.11.47/8/1998
19981593CenrichNamb1Achillea millefoliumforbdiscrete41.54530.714.71.77/16/1998
19982104CambNenrich1Achillea millefoliumforbdiscrete11.64428.415.51.56/26/1998
19982104CambNenrich1Achillea millefoliumforbdiscrete21.544.429.914.81.47/4/1998
19982104CambNenrich1Achillea millefoliumforbdiscrete3245.222.520.127/9/1998
19982104CambNenrich1Achillea millefoliumforbdiscrete41.845.825.218.21.87/16/1998
                    

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BioCON : Biodiversity, Elevated CO2, and N Enrichment : Photosynthesis Leaf Carbon and Nitrogen

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