Site #6: 1987 Fire Glacial fluvial
S-facing; mid slope (2/3 down)
July 20, 1995
L.M. Arocena and K. Driscoll
Depth (cm) Horizon Description 
  S Bryophytes. 
4-3 Ln  Deciduous leaves, twigs. 
3-0 Fm  Moist; black (10YR 2/1 m); weak, compact matted, friable, fibrous; common, very fine roots, common, random fungal mycelia. 
0-20 Ae  Gray (10YR 6/1 m); sandy loam; moderate, fine to coarse, granular; friable; abundant, coarse to medium, horizontal and vertical, exped roots; clear, wavy boundary. 
20-45 Btg  Dark brown (7.5YR 3/3 m);loam; few, medium, distinct, strong brown (7.5YR 5/8 m) mottles; moderate to strong, medium, subangular blocky; slightly friable; plentiful, medium, vertical, exped roots; gradual, wavy boundary. 
45 Cg  Light olive brown (2.5 Y 5/4 m); sandy loam; few, medium, distinct, strong brown (7.5 YR 4/6 m) mottles; massive; slightly friable; very few, fine to medium, vertical, exped roots. 
Selected physical and chemical properties - Pedon 6.
 
HORIZON Sand
%		 Clay
%		 Silt
%		 C
%		 Ti
%		 Zr
ppm		 pH
dH2O		 pH
0.01M CaCl2 
Ae  57.9  4.80  37.4  1.4  0.343  177  5.3  4.5 
Btj  51.5  7.20  41.3  2.0  0.346  162  5.5  4.9 
C  56.4  4.60  39.0  0.62  0.391  162  6.2  5.1 
 
HORIZON By NH4OAc By NH4Cl 
Al
cmol(+)kg-1		 Ca
cmol(+)kg-1		 Fe
cmol(+)kg-1		 K
cmol(+)kg-1		 Mg
cmol(+)kg-1		 Mn
cmol(+)kg-1		 Na
cmol(+)kg-1 		 CEC
cmol(+)kg-1 
Ae  < 0.022  4.1  < 0.011  < 0.005  1.4  0.0090  0.016  5.9 
Btj  < 0.022  6.7  < 0.011  0.053  2.3  < 0.007  0.022  8.9 
C  < 0.022  2.8  < 0.011  0.12  0.87  < 0.007  0.010  3.9 ** 
 
HORIZON Alp
%		 Fep
%		 Alo
%		 Feo
%		 ODOE* 
Ae  0.017  0.029  0.036  0.061  0.78 
Bt  0.058  0.25  0.11  0.27  1.6 
C  0.024  0.052  0.037  0.043  0.29 

o = (NH4)2C2O4      p = Na4P2O7      * = optical density of oxalate extract      ** = by CEC Summation 

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