Description of soil BCTNKca~~~N (TANAKA)
| Classification | R.HG |
|---|---|
| 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 | Always The water table is always present in the soil. |
| Root restrictions | Fourth layer The growth of plant roots is restricted by the fourth layer. |
| Type of root restricting layer | Undifferentiated Undifferentiated |
| Drainage | Poorly drained Water is removed so slowly in relation to supply that the soil remains wet for a comparatively large part of the time the soil is not frozen. Excess water is evident in the soil for a large part of the time. Subsurface flow or groundwater flow, or both, in addition to precipitation are the main water sources; there may also be a perched water table, with precipitation exceeding evapotranspiration. Soils have a wide range in available water storage capacity, texture, and depth, and are gleyed subgroups, Gleysols, and Organic soils. |
| Mode of Deposition | Texture | Chemical properties |
|---|---|---|
| Fluvial These sediments generally consist of gravel and sand with a minor fraction of silt and rarely of clay. The gravels are typically rounded and contain interstitial sand. |
Medium Medium (USDA Texture Classes: VFSL,L,SIL,SI,GL,GSIL). |
Weakly Calcareous < 6 CaCO3 equivalent (%) |
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 | 0 | 25 | A | hk | 1.15 | 0 | 55 | 27 | 18 | F | 14 | 2.8 | -9 | -9 | 7.6 | 8.0 | 100 | 12 | 20 | 2 | 1.0 | 57 | 42 | 31 | 11 | ||
| 2 | 25 | 42 | C | kgj | 1.42 | 0 | 65 | 23 | 12 | F | 16 | 0.6 | -9 | -9 | 7.8 | 8.3 | 100 | 7 | 8 | 2 | 1.0 | 46 | 25 | 19 | 8 | ||
| 3 | 42 | 56 | C | kg | 1.46 | 0 | 52 | 30 | 18 | F | 13 | 0.4 | -9 | -9 | 8.0 | 8.7 | 100 | 9 | 7 | 1 | 1.0 | 45 | 22 | 20 | 10 | ||
| 4 | 56 | 72 | C | cag | 1 | 1.42 | 5 | 35 | 50 | 15 | F | 9 | 0.4 | -9 | -9 | 8.0 | 8.7 | 100 | 24 | 7 | 1 | 0.3 | 46 | 43 | 32 | 24 | |
| 5 | 72 | 90 | C | cag | 2 | 1.6 | 10 | 54 | 34 | 12 | F | 14 | 0.3 | -9 | -9 | 7.9 | 8.6 | 100 | 7 | 6 | 1 | 1.0 | 40 | 30 | 25 | 11 | |
| 6 | 90 | 115 | C | cag | 3 | 1.6 | 14 | 72 | 20 | 8 | F | 18 | 0.2 | -9 | -9 | 7.9 | 8.6 | 100 | 13 | 4 | 1 | 1.0 | 40 | 20 | 15 | 6 | |