public read Needle MorphologyForest Ecosystem Monitoring Cooperative
705 Spear StreetSouth BurlingtonVermont05403United States of America
(802) 656-0683femc@uvm.eduwww.uvm.edu/femcMeasurements of elevation, crown position, width, cross section etc.Forest Ecosystem Monitoring CooperativeThe Ecological Significance of Sun/Shade Plasticity in Balsam Fir, Red Spruce, and Paper Birch along Elevational Gradients in the Northeastern United StatesAndrewRichardsonprincipalInvestigatorTo better understand the relationship between plants and their abiotic environment, by using the response of three different tree species growing at different elevations, to light.Needle MorphologyMeasurements of elevation, crown position, width, cross section etc.VMC.128.172mySQL/femc/data/archive/project/the-ecological-significance-sunshade-plasticity-balsam/dataset/needle-morphology2000-06-012002-09-30ObservationObservationObservation identification numberintSpeciesSpecies of TreeSpecies of tree sampledtextElevationElevation of ObservationElevation where tree is located (low, mid and high elevations) textCrown positionCrown PositionWhat part of the crown the sample is from (either sun or shade)textTreeTree IDTree ID numbertextTransectTransectTransecttextMountainMountain SiteThe mountain where the sample was takentextSample codeSample CodeSample codetextNeedle widthWidth of NeedleWidth of needledecimalmeterintegerNeedle thicknessThickness of NeedleThickness of needledecimalmeterrealEpidermis thicknessThickness of EpidermisThickness of leaf epidermis (layered group of cells that protects leaves from external environment)decimalmeterrealVascular cylinder cross-sectional areaVascular Cylinder Cross-Sectional AreaCross-sectional area of the vascular cylinder. Measured in micrometers squared time 10^3decimalmeterrealCuticle thicknessThickness of CuticleThickness of leaf cuticle (hydrophobic, waxy covering produced by epidermal cells)decimalmeterrealTransverse cross-sectional area of needleNeedle Transverse AreaTransverse cross-sectional area of a needle. Measured in micrometers squared time 10^3decimalmeterintegerCross-sectional area inside epidermisArea Inside EpidermisCross-sectional area inside epidermis. Measured in micrometers squared time 10^3decimalmeterintegerMesophyll cross-sectional areaMesophyll Cross-Sectional Area Mesophyll cross sectional area (interior of the leaf between the upper and lower layers od epidermis). Measured in micrometers squared time 10^3decimalmeterrealWidth/thickness ratioWidth/Thickness RatioRatio of the leafs width to its thicknessdecimalmeterrealVascular cylinder ratioVascular Cylinder RatioVascular cylinder ratiodecimalmeterrealMesophyll ratioMesophyll RatioMesophyll ratio of leafdecimalmeterrealNeedle massNeedle MassMass of needledecimalmeterrealProjected needle area (one-sided)Projected Needle AreaProjected area of one side of a needledecimalmeterrealNeedle lengthNeedle LengthLength of needledecimalmeterrealAverage needle thicknessAverage Needle ThicknessAverage thickness of neeledecimalmeterrealTissue densityTissue DensityDensity of tissuedecimalmeterrealNeedle mass to area ratioNeedle Mass/Area RatioRatio of the needles mass to areadecimalmeterreal