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


Leaf 15N isotope, total N and delta 15N from 9 species water treatment plots

Years Available: 2008 - 2011

Principle Investigators

Lee, Tali
Lee, Tali
Reich, Peter

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1YearYear collected (YYYY)
2MonthMonth collected (MM)
3DayDay collected (DD)
4SpeciesSpecies
5RingRing
6PlotPlot
7CountOfSpeciesCount of species planted in plotnumber
8CO2 treatmentCO2 treatmentCenriched = 564ppm, Camb = ambient Carbon
9Nitrogen treatmentNitrogen treatment Nenrich= 4g NH4NO3 per MeterSquared per year, Namb = Ambient Nitrogen
10Water Treatment Water Treatment H2Oneg=rain removal treament via portable rain shelters, H2Oamb=natural rain fall
11delta15NRelative deviation of R from standard (per mil)dimensionless
12R (sample)Ratio of 15N to 14N isotopes in the sampledimensionless
13atomNPercentage of total N atoms that are 15Ndimensionless
14N amount (ug)Total amount of Nitrogen in the samplemicrogram
15sample mass (mg)Mass of the samplemilligram
16sample % NPercentage of sample that is nitrogendimensionless
 

SAMPLE DATASET

YearMonthDaySpeciesRingPlotCountOfSpeciesCO2 treatmentNitrogen treatmentWater Treatment delta15NR (sample)atom%15NN amount (ug)sample mass (mg)sample % N
20080820Achillea millefolium1269CenrichNambH2Oamb-0.550.003674480.3661028853.82.9991.8
20080820Achillea millefolium52999CenrichNambH2Oamb-0.200.003675760.3662299738.62.8391.4
20080820Achillea millefolium31319CenrichNambH2Oneg-2.570.003667040.3653640762.72.9322.1
20080820Achillea millefolium41949CambNenrichH2Oamb14.500.003729820.3715956657.13.0141.9
20080820Achillea millefolium63579CambNenrichH2Oamb50.750.003863090.38482207121.33.0274.0
20080820Achillea millefolium1119CenrichNenrichH2Oamb33.420.003799360.378498254.03.0591.8
20080820Achillea millefolium1349CenrichNenrichH2Oneg35.580.003807290.3792854396.83.0363.2
20080820Achillea millefolium52939CenrichNenrichH2Oneg24.250.003765660.3751532569.32.9952.3
20080820Lespedeza capitata21199CambNambH2Oamb-3.090.0036650.36517679.23.512.3
20080820Lespedeza capitata42339CambNambH2Oamb-1.710.003670.36567985.73.6622.3
20080820Lespedeza capitata63209CambNambH2Oamb-2.460.0036670.36540586.43.8332.3
20080820Lespedeza capitata42439CambNambH2Oneg-2.410.0036680.365424107.83.9392.7
                

Download dataset aeje141
BioCON : Biodiversity, Elevated CO2, and N Enrichment : Leaf 15N isotope, total N and delta 15N from 9 species water treatment plots

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