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 comparing nitrogen content and throughfall chemistry1993-05-011995-05-01Measurement of foliar nitrogen, leaf litter nitrogen, nitrogen, nitrate and ammonium throughfall 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_NitrogenThroughfallSummaryStatisticsVMC.15.291mySQLEveline Leon. 1995. Tree-level summary statistics comparing nitrogen content and throughfall chemistry. 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-comparing-nitrogenhttps://www.uvm.edu/femc/CI4/data/archive/project/foliar-nitrogen-variability-resorption-during-autumn/dataset/tree-level-summary-statistics-comparing-nitrogenTree_numberTree numberNumber of tree sampledintGreenFoliarN_gperTreeGreen Foliar N Green foliar Nitrogendecimalgram0.01realLitterN_gperTreeLeaf Litter NNitrogen from leaf litter samplesdecimalgram0.01realTotalNThroughfall_gperTreeTotal Nitrogen ThroughfallTotal Nitrogen throughfall per treedecimalmilligramsPerSquareMeter0.01realN03NThroughfall_mgperm2NO3 ThroughfallTotal Nitrate throughfalldecimalmilligramsPerSquareMeter0.01realNH4Throughfall_mgperm2NH4 ThroughfallTotal Ammonium throughfalldecimalmilligramsPerSquareMeter0.01real