Description of soil BCTCNlo~~~N (TRINCOMALI)

General Characteristics
Classification O.DYB

Orthic Dystric Brunisol

Profile Native soil profile

The soil is in native condition (undisturbed by agriculture).

Kind of material Mineral

The soil material is primarily composed of mineral particles.

Water table Non growing season

The water table is present in the soil during the non growing season.

Root restrictions Fifth layer

The growth of plant roots is restricted by the fifth layer.

Type of root restricting layer Compact Till

Compact (Basal) Till

Drainage Moderately well drained

Water is removed from the soil somewhat slowly in relation to supply. Excess water is removed somewhat slowly due to low perviousness, shallow water table, lack of gradient, or some combination of these. Soils have intermediate to high water storage capacity (5-6 cm) within the control section and are usually medium to fined textured. Precipitation is the dominant water source in medium to fine textured soils; precipitation and significant additions by subsurface flow are necessary in coarse textured soils.

Parent Materials
Mode of Deposition Texture Chemical properties
Uppermost Marine

Unconsolidated deposits of clay, silt, sand, or gravel that are well to moderately well sorted and well to moderately well stratified (in some places containing shells). The deposits have settled from suspension in salt or brackish water bodies or have accumulated at their margins through shoreline processes such as wave action and longshore drift. Nonfossiliferous deposits may be judged marine if they are located in an area that may reasonably be considered to have contained salt water at the time the deposits were formed.

Medium

Medium (USDA Texture Classes: VFSL,L,SIL,SI,GL,GSIL).

Extremely / Strongly Acidic

pH < 5.6

Below Till (Morainal)

Morainal material (till) deposited by glacial ice: a mixture of boulders, sand, silt, and clay.

Moderately Fine

Moderately Fine (USDA Texture Classes: SCL,FSCL,VFSCL,CL,SICL,GSCL,GL,CBCL).

Medium Acid to Neutral

pH 5.6 - 7.4

Soil Layer Characteristics

Soil Layer Characteristics
Classification Physical Chemical Water
Layer Number Upper
depth
Lower
depth
hzn_lit hzn_mas hzn_suf hzn_mod bd cofrag tsand tsilt tclay domsand vfsand orgcarb vonpost wood phca ph2 bases caco3 cec ec ksat kp0 kp10 kp33 kp1500
1 -3 0 LFH 0.11 0 -9 -9 -9 - -9 40.6 -9 -9 4.7 5.2 64 0 48 0 21.0 92 35 21 14
2 0 7 A h 1.22 28 42 42 16 F 10 6.0 -9 -9 4.5 5.0 33 0 39 0 1.0 54 9 8 5
3 7 55 B m 1 1.55 28 42 42 16 M 10 1.6 -9 -9 5.3 5.8 23 0 16 0 10.0 42 9 8 5
4 55 79 B m 2 1.45 28 54 33 13 M 3 1.7 -9 -9 5.2 5.7 34 0 16 0 1.0 45 4 4 2
5 79 100 2 BC gj 1.95 29 47 41 12 F 12 0.5 -9 -9 5.4 5.9 71 0 12 0 0.1 26 24 18 10
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