Forest Ecosystem Monitoring Cooperative(802) 656-0683femc@uvm.eduwww.uvm.edu/femc705 Spear StreetSouth BurlingtonVermont05403United States of AmericaFoliar Nitrogen Variability and Resorption During Autumn Leaf Senescence in Sugar MapleMeasure foliar nitrogen of sugar maple to determine relationships between leaf nitrogen content and resorption efficiency during autumn leaf senescence. To examine the variability in resorption efficiency among and within sugar maple trees. To establish a baseline for long-term nutrient cycling research. To examine the variability in resorption efficiency and foliar N content among and within sugar maple trees. To determine the relationship between resorption efficiency and foliar N content.Foliar Nitrogen Variability and Resorption During Autumn Leaf Senescence in Sugar MapleScherbatskoyTimLeonEvelineplant physiologyfoliar nitrogennutrient cyclingsugar mapleTree-level summary statistics of nitrogen content and resorption1993-09-091995-05-01Measurement of nitrogen in live leaves and leaf litters, calculation of nitrogen reabsorption To determine relationships between leaf nitrogen content and resorption efficiency during autumn leaf senescence, examine the variability in resorption efficiency among and within sugar maple trees, and establish a baseline for long-term nutrient cycling research examine the variability in resorptioZ0015_NitrogenSummaryStatisticsVMC.15.290mySQLEveline Leon. 1995. Tree-level summary statistics of nitrogen content and resorption. University of Vermont. FEMC. Can be found at: https://www.uvm.edu/femc/data/archive/project/foliar-nitrogen-variability-resorption-during-autumn/dataset/tree-level-summary-statistics-nitrogen-contenthttps://www.uvm.edu/femc/CI4/data/archive/project/foliar-nitrogen-variability-resorption-during-autumn/dataset/tree-level-summary-statistics-nitrogen-contentTree_numberTree #Number of the tree sampledintGreenFoliarN_ug_cm2Green Foliar NNitrogen from live leaf samplesdecimalcustomMicrogramsPerSquareCentimeter0.01realGreenFoliarN_ug_cm2_SEGreen Foliar N SoutheastNitrogen from live leaf samples in the SoutheastdecimalcustomMicrogramsPerSquareCentimeter0.01realGreenFoliarN_pctdrywtGreen Foliar N WeightNitrogen from live leaf sample measured by the percent of dry weightdecimalpercent0.01realGreenFoliarN_pctdrywt_SEGreen Foliar N WeightNitrogen from live leaf sample measured by the percent of dry weight (southeast)decimalpercent0.01realLitterN_ug_cm2Leaf litter NNitrogen from leaf litter samplesdecimalcustomMicrogramsPerSquareCentimeter0.01realLitterN_ug_cm2_SELeaf litter N SENitrogen from leaf litter samples (southeast)decimalcustomMicrogramsPerSquareCentimeter0.01realResorption_pctPercent ResorptionPercent nitrogen resorbed is calculated as 100* (maximum N mass/leaf area)-(leaf litter N mass/ leaf area)decimalpercent0.01real0100Resorption_pct_SEPercent Resorption SEPercent nitrogen resorbed is calculated as 100* (maximum N mass/leaf area)-(leaf litter N mass/ leaf area) (southeast)decimalpercent0.01real0100