Hubbard Brook Forest Floor Data - Watershed 6 1976 - 59 15x15 cm excavated blocks
Summary

Forest floor mass (80oC ODW, ground) ave =  18.86 kg/m2   N=59
Forest floor organic matter (80oC ODW, ground) ave =  6.72 kg/m2   N=59



Organic matter % ODW 
          
 by ave of % OM for each plot:                      =  47.82 %    N=59
 by dividing line 2 by line 1 above  (6.72/18.83)   =  35.64 %



Elemental analysis:
 
        Concentration            Amounts
Pb      77.77    ug/g        1068    mg/m2          N=59
Cu       8.77    ug/g         137    mg/m2
Zn      51.46    ug/g         705    mg/m2
Ca    1490       ug/g       18.97    g/m2
Mg     272       ug/g        5.61    g/m2