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


Oak leaf water potential

Years Available: 2012

Principle Investigators

Wright, Alexandra

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1YearYear (YYYY)
2MonthMonth (MM)
3DayDay (DD)
4DateDate of measurement (MM/DD/YYYY)
5RingBioCON experiment ring
6PlotBioCON experiment plot
7SpRichPlanted species richness in BioCON plotsnumber
8SizeClassone of two size/age classes of oaks planted into BioCON plotssmall=planted in 2010, large=planted in 2012
9AM Water PotentialBARSpredawn water potential (taken??3am-5am) using a Scholander Pressure bomb taken initially in barsbar
10AM_WP_Mpasame predawn water potential expressed in megapascalsmegapascal
11AM Leaf Arealeaf area of the leaves used for leaf water potential squareCentimeters
12PM Water PotentialBARSmidday water potential (taken??11am-1pm) using a Scholander Pressure bomb taken initially in barsbar
13PM_WP_Mpasame midday water potential expressed in megapascalsmegapascal
14PM Leaf Arealeaf area of the leaves used for leaf water potential squareCentimeters
15DayWPPM Water PotentialBARS - AM Water PotentialBARSbar
16DayWP_MpaPM_WP_Mpa - AM_WP_Mpamegapascal
17Soil Moistureaverage surface soil moisture taken using 3 measurements in a circle around plant where WPmeasurements were taken that daydimensionless
18AveLeafAreaaverage leaf area of predawn and midday leaves (PM Leaf Area and AM Leaf Area) taken on the same plantsquareCentimeters
19NumLeavesCounted number of leaves on each plantnumber
20TotalEst_LeafAreaNumLeaves * AveLeafAreanumber
21Ave Air TempAverage temperature of air from iButton temperature, humidity dataloggers in plots (averaged for each 24 hour period when measurements were taken)celsius
22Ave RHAverage relative humidity of air from iButton temperature humidity dataloggers in plots (averaged for each 24 hour period when measurements were taken)dimensionless
23Ave VPDCalculated average vapor pressure deficit of air from iButton temperature humidity dataloggers in plots (averaged for each 24 hour period when measurements were taken)dimensionless
24AGB_May28Estimated aboveground biomass on May 28 2012 (from basal diameter, height, and leaf number measurements taken on the plants)dimensionless
25AGB_Aug27Estimated aboveground biomass on Aug 27 2012 (from basal diameter, height, and leaf number measurements taken on the plants)dimensionless
26AGB_RGR(AGB_Aug27 - AGB_May28)/num daysdimensionless
 

SAMPLE DATASET

YearMonthDay DateRingPlotSpRichSizeClassAM Water PotentialBARSAM_WP_MpaAM Leaf AreaPM Water PotentialBARSPM_WP_MpaPM Leaf AreaDayWPDayWP_MpaSoil MoistureAveLeafAreaNumLeavesTotalEst_LeafAreaAve Air TempAve RHAve VPDAGB_May28AGB_Aug27AGB_RGR
201206226/22/20122901Small-0.5-0.0528.306-19.5-1.9510.407-19-1.913.719.3565358.069524.6330444470.870461111.609777250.378780.113652-0.00217318
201206226/22/201221221Large-0.25-0.02522.498-15.5-1.5531.83-15.25-1.52513.427.164381.49227.3060888962.860838892.4101383460.7076721.1926440.00397518
201206226/22/201263361Small-0.25-0.02510.634-12-1.225.721-11.75-1.17511.418.1775354.532525.2210166764.771933332.0673219290.0650640.000533311
201206226/22/201242394Small0013.233-16.5-1.6516.725-16.5-1.6512.814.979344.93723.191975.162327781.2498950990.3134640.002569377
201206226/22/201242444Large-1.5-0.1510.651-19.5-1.953.99-18-1.813.27.3205321.961524.4536888971.318444441.6095645970.5480280.105864-0.003624295
201206226/22/201263374Small-1-0.135.299-14.75-1.47510.905-13.75-1.37513.223.102369.30623.930271.821716671.436184590.380080.00311541
201206226/22/201241879Large-0.75-0.0752.231-15.75-1.5754.797-15-1.513.13.514310.54224.5628944472.198155561.1953300450.4019360.042076-0.002949672
201206226/22/201241879Small-0.25-0.02510.247-13.25-1.32518.45-13-1.314.114.3485343.045524.5628944472.198155561.1953300450.2892040.002370525
201206226/22/201242339Large-0.25-0.02518.594-8-0.816.14-7.75-0.77515.417.367352.10122.1830888983.217994440.74943490.5428360.086948-0.003736787
201206226/22/201242339Small-1-0.113.111-17-1.714.974-16-1.616.214.0425342.127522.1830888983.217994440.74943490.2080120.001705016
201206226/22/201226716Large-0.75-0.0755.953-18-1.87.917-17.25-1.72511.26.935320.80521.4209611178.057133330.9237539270.5643480.110128-0.003723115
201206226/22/2012210716Large-0.75-0.0755.33-14.5-1.455.199-13.75-1.37512.35.2645315.793522.5454333379.101205560.9215315390.337732-0.011712-0.002864295
                          

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BioCON : Biodiversity, Elevated CO2, and N Enrichment : Oak leaf water potential

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