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

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Effect of N Addition on Vegetation with Mammalian Herbivory - Experiment 008


Soil ammonium

Years Available: 1986

Principle Investigators

Huntly, Nancy
Inouye, Richard

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1Field number/letterField number/letter
2Experiment numberExperiment number
3Plot numberPlot number
4Nitrogen TreatmentNitrogen treatment applied twice per year3=3.0 g/m2; 6=14.0 g/m2; 8=40.0 g/m2; 1=no nutrients added
5Ammonium Nitrate(34-0-0) addition(g/m2/yr)Total annual fertilizer nitrogen additiongramsPerMeterSquaredPerYear
6Sampling dateSampling date (YYMMDD)
7Vial weight (g)Vial weight (g)gram
8Wet soil vial weight (g)Wet soil vial weight (g)gram
9Tin weight (g)Tin weight (g)gram
10Wet soil tin weight (g)Wet soil tin weight (g)gram
11Dry soil tin weight (g)Dry soil tin weight (g)gram
12Dilution ratioDilution ratiodimensionless
13Absorbance of NH4Absorbance of NH4dimensionless
14NH4 in soil (mg/kg)NH4 in soil (mg/kg)milligramsPerKilogram
 

SAMPLE DATASET

Field number/letterExperiment numberPlot numberNitrogen TreatmentAmmonium Nitrate(34-0-0) addition(g/m2/yr)Sampling dateVial weight (g)Wet soil vial weight (g)Tin weight (g)Wet soil tin weight (g)Dry soil tin weight (g)Dilution ratioAbsorbance of NH4NH4 in soil (mg/kg)
E813686073087.3128.5422.1145.1143.910.78180.0920.433
E8288086073087.73132.4621.8750.3548.840.84720.0970.428
E833686073087.76133.0921.7547.3546.110.86270.1420.678
E841086073087.82135.6621.5750.1248.670.90820.0760.285
E8562886073087.34126.3321.9348.3347.170.74550.0810.381
E8688086073087.63126.9221.9551.1950.070.75570.1420.775
E871086073087.15132.7622.054846.710.86690.1410.669
E881086073087.93122.5121.6846.3345.080.65650.0760.395
E893686073087.64135.0321.5852.6450.810.8920.0870.351
E8103686073087.65126.7321.4450.5548.940.73840.1020.525
E81162886073087.45128.5921.6142.7841.870.78740.1810.988
E8121086073087.95134.1622.1247.3146.020.87690.1260.577
              

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Effect of N Addition on Vegetation with Mammalian Herbivory : Soil ammonium

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