Topley: Soil Pit No. 3
Location: in corridor between plots 8 and 9.
Classification: Hemimor / Orthic Gray Luvisol on morainal blanket.
Horizon Depth (cm.) Description 
S/L (8-6)  Layer of bryopythic vegetation with individual particles of coniferous and herbeceous vegetation; slightly dry; abrupt smooth boundary. 
Fm  6-0  Partly decomposed mosses and vascular plant tissues; abrupt smooth boundary; moist; compact matted; felty, fibrous; common white and gray colored mycelia; common random charcoal. 
Bm  0-2  10YR 3/2 (m); loam; moderate to strong, fine to granular; loose, slightly sticky; abundant, fine random roots, and medium and coarse horizontal roots; 15% cf.; 3-8 cm. thick 
Ae  2-20  10YR 5/3 (m); loam; moderate, medium, subangular blocky to weak, medium, platy; slightly hard, slightly sticky; plentiful fine random and plentiful medium horizontal roots; 25% cf.; 15-20 cm. thick. 
AB  20-38  10YR 5/3 (m); loam; moderate to strong, medium, subangular blocky; slightly hard and slightly sticky; few fine and coarse random roots; slight porous; few thin clay films in voids/channels and on ped faces; 30% cf.; 16-20 cm. thick. 
Bt  38-55  10YR 4.5/3 (m); clay loam; common fine to medium faint 10YR 5/6 mottles common fine to medium distinct mottles 10YR 5/6; massive to strong coarse subangular blocky; hard, very sticky; no rooting; slightly porous; many moderately thick clay films in voids/channels on cf. and ped faces; 30% cf. 

Horizon Total C
%
C/N
Ratio
C.E.C. exch. Ca exch K exch. Mg Total N
%
Min N Avail. P pH
CaCl 
Meq/100 grams ppm 
Fm 53.66 36.97 97.19 18.61 3.73 3.33 1.45 253.1 90.9 3.45 
Bm 6.91 22.93 37.30 5.42 0.31 1.45 0.30 29.8 8.3 3.44 
AB 0.93 10.22 9.77 1.82 0.10 0.72 0.09 1.4 1.3 3.93 
Ae 1.34 16.50 12.43 2.44 0.15 0.92 0.08 12.4 2.5 3.72 
Bt 0.45 8.80 11.14 4.94 0.13 1.85 0.05 0.0 2.0 4.28 

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