medium granular structure; friable; very strongly acid; roots 

 are common; 15 percent coarse fragments; clear wavy bound- 

 ary. 



B3 61-99 Yellowish brown (lOYR 5/4) fine sandy loam with few 



distinct medium yellowish brown (lOYR 5/8) mottles; weak 

 coarse platy structure; friable; strongly acid; few roots; 15 

 percent coarse fragments; abrupt wavy boundary. 



CX 99-114 Light olive brown (2.5 Y 5/4) gravelly loamy sand; massive, 



firm; strongly acid; few roots; 25 percent coarse fragments; 

 fabric of fragipan includes both segregated fine and medium 

 sand lenses in horizontal orientation and fine sandy loam; silt 

 coatings on coarse fragments. 



Pedon 10 — Tree Throw Mound 



Berkshire series, sandy subsoil variant. The site is located on a low slope position 

 of the glaciated uplands. The pedon location is in the northern part of 

 compartment 14, about 70 meters west of Bear Notch Road. This well drained 

 soil has developed in glacial till with an overburden of about 41 cm of mounded 

 material as a result of tree throw activity. Dominant vegetation includes beech 

 (Fagus grandifolia), yellow birch (Betula lutea), and white birch (Betula 

 papyrifera). 



Horizon Depth cm Description 



021 5-3 Loose leaf litter, mostly yellow and white birch and beech 



leaves. 



022 3-0 Black (N 2/) humus; many roots; abrupt wavy boundary. 



A2 0-3 Gray (lOYR 6/1) fine sandy loam; weak fine granular 



structure; very friable; many roots; very strongly acid; abrupt 

 irregular boundary. 



B21h 3-5 Dark reddish brown (5YR 2/2) loamy fine sand; weak fine 



granular structure; very friable; many roots; very strongly acid; 

 abrupt irregular boundary. 



B21ir 5-10 Yellowish red (5YR 4/6) fine sandy loam; weak fine granular 

 structure; very friable; many roots; very strongly acid; abrupt 

 wavy boundary. 



B22 10-41 Yellowish brown (lOYR 5/6) loamy fine sand, weak fine 



granular structure; friable; 5 percent coarse fragments; dark 

 yellowish brown (lOYR 3/4) material in old root channels; 

 roots common; very strongly acid; clear wavy boundary. 



A2b 41-46 Gray (lOYR 6/1) fine sandy loam; weak fine granular 

 structure; friable; occasional pocket of dark gray (5Y 4/1) 

 material; 5 percent coarse fragments; few roots; very strongly 

 acid; abrupt irregular boundary. 



B21b 46-56 Strong brown (7.5YR 5/6) fine sandy loam; weak fine granular 

 structure; friable; 5 percent coarse, fragments; dark brown 

 (7.5YR 4/4) material in old root channels; roots common; 

 very strongly acid; clear wavy boundary. 



B22b 56-69 Dark yellowish brown (lOYR 4/4) fine sandy loam; weak fine 



