See more from this Division: S01 Soil Physics
See more from this Session: Environmental Soil Physics: Bridging the Critical Zone to Crops, Climate, and Remediation: I
Abstract:
Electrical profiling to the depth of 0.3 m (plow horizons) precisely isolated sandy deposits (fine sand) within I level, which had electrical resistivity (ER) of 200-300 Ohm m from more silty sandy loams (II level), which has lower ER=100–150 Ohm m. Within III level fine sandy silty loams (ER = 200–300 Ohm m) dominated, which were replaced at IV-V levels (a.s.l. 175–230 m) by silty loams with ER=50–150 Ohm m.
Deeper horizontal electrical profiling (up to 0.5 m) outlined electrical resistivity under plow horizon, in subsoil of anthropogenic transformed soils. Precise submeridional narrow areas with sharp increase in resistivity up to 200–300 Ohm m were revealed within the limits of IV level with HEP. They corresponded to occurrence of sandy deposits within silty loams, which were deposited during degradation of wide extraglacial lakes existed within the study area during Late Pleistocene. Within the limits of the V level ER at depth 0.3 and 0.5 m are similar and equal 50–100 Ohm m.
This study was supported by RFBR (Project No 08-04-00190).
See more from this Division: S01 Soil Physics
See more from this Session: Environmental Soil Physics: Bridging the Critical Zone to Crops, Climate, and Remediation: I