Forest Ecosystem Monitoring Cooperative(802) 656-0683femc@uvm.eduwww.uvm.edu/femc705 Spear StreetSouth BurlingtonVermont05403United States of AmericaUniversity of Maine leadBaseline Data for Long-term Forest Vegetation Monitoring at Bear Brook Watershed in MaineIn 1987, in response to concerns about the impacts of atmospheric deposition, commonly referred to as “acid rain,” on forest ecosystems, the US Environmental Protection Agency (EPA) provided funds for the establishment of Bear Brook Watershed Research Site, Maine (BBWM), as a Watershed Manipulation Project (WMP) under the National Acid Precipitation Assessment Program (NAPAP). BBWM was established to identify atmospheric deposition impacts on surface waters and to quantify the major processes controlling surface water acidification under increased sulfur (S) and nitrogen (N) atmospheric deposition.Baseline Data for Long-term Forest Vegetation Monitoring at Bear Brook Watershed in MaineFernandezDr. IvanEckhoffJ.D.WiersmaG.B.regenerationacid rainnitrogenwatershedsvegetationforest inventoryNumber of Trees Per Plot1997-07-011999-08-31Forest mensuration indicator: number of trees per plot (sum of all four subplots within each cluster-plot), by species, at Bear Brook Watershed, Maine, in 1997.Z1352_2758_JD0NPAVMC.1352.2758mySQLEckhoff and Wiersma (2002) Number of Trees Per Plot. FEMC. Available online at: https://www.uvm.edu/femc/data/archive/project/bear-brook-watershed-maine/dataset/number-trees-per-plothttps://vmc.w3.uvm.edu/vmcdevel/CI4/data/archive/project/bear-brook-watershed-maine/dataset/number-trees-per-plotA&Y-TotalA&Y-TotalintA-1A-1intA-2A-2intA-3A-3intA-4A-4intA-5A-5intE-1E-1intE-10E-10intE-2E-2intE-3E-3intE-4E-4intE-5E-5intE-6E-6intE-7E-7intE-8E-8intE-9E-9intE-TotalE-TotalintFHM_CodeFHM_CodeintSpeciesSpeciestextW-1W-1intW-10W-10intW-2W-2intW-3W-3intW-4W-4intW-5W-5intW-6W-6intW-7W-7intW-8W-8intW-9W-9intW-TotalW-TotalintY-1Y-1intY-2Y-2intY-3Y-3intY-4Y-4intY-5Y-5int