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

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Plant Competition Under Different Nitrogen Levels:A Garden Experiment - Experiment 055


Percent light penetration

Years Available: 1989 - 1999

Principle Investigators

Tilman, David

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1Field number/letterField number/letter
2Experiment numberExperiment number
3Plot numberPlot number
4Subplot numberSubplot number
5TreatmentCompetition Treatment number
6Competition TreatmentSpecies code followed by percentage of this species seeds of the total number of seeds planted.
7Plot front-backLocation in plot measurement taken
8Plot sideSide of plot measurement was taken
9Distance from side of plot (cm)Distance from side of plot (cm)centimeter
10Sampling dateSampling date
11Light reading above vegetationLight reading above vegetationdimensionless
12Light reading below vegetationLight reading below vegetationdimensionless
13Percent light penetrationPercent light penetrationdimensionless
14Sampling yearSampling year (YYYY)
15Profile depth Profile depth (cm above the ground)centimeter
16Percent of sun light at 100 cm reaching each depthPercent of sun light at 100 cm reaching each depthdimensionless
17LAboveAbove vegetation light reading-single sensordimensionless
18LBelowBelow vegetation light reading with all sensorsdimensionless
19LConvertConversion Factor for Above vegetation light readingdimensionless
20ClAboveCorrected above vegetation light readingdimensionless
21pLightPercent light penetration using corrected readingdimensionless
 

SAMPLE DATASET

Field number/letterExperiment numberPlot numberSubplot numberTreatmentCompetition TreatmentPlot front-backPlot sideDistance from side of plot (cm)Sampling dateLight reading above vegetationLight reading below vegetationPercent light penetrationSampling yearProfile depth Percent of sun light at 100 cm reaching each depthLAboveLBelowLConvertClAbovepLight
44551112PV30BG70frontleft2089081684310751.27521989
44551214SS30AS70frontleft20890816117111520.98381989
4455132SS100frontleft20890816155513140.8451989
4455149PV70SS30frontleft2089081614189490.66931989
44551513PV70BG30frontleft20890816160910840.67371989
44551616SS30BG70frontleft20890816146513210.90171989
44551718AS30BG70frontleft20890816161312910.80041989
44551822AG70BG30frontleft2089081614759110.61761989
4455194BG100frontleft20890816160514510.9041989
445511017SS70BG30frontleft20890816147514240.96541989
44551115AG100frontleft20890816161812780.78991989
445511223BD30PV70frontleft20890816151712940.8531989
                     

Download dataset lpe055
Plant Competition Under Different Nitrogen Levels:A Garden Experiment: Percent light penetration

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