In the laboratory humus profile samples originating from the databases Pedon
and Catena were used for analyses.
The authors acknowledge the National Soil Survey Laboratory staff involved in pedon
analysis and Michael Goss, United States Environmental Protection Agency (USEPA), for his assistance in field sampling.
From an analysis of 138 pedons
from the Arctic Coastal Plain near Barrow, Alaska, we were able to delineate the upper boundary of the transition zone in 78% and the lower boundary in 70% of the pedons
Bulk density values were multiplied by the percent SOC, determined from the corresponding pedon
and depth increments, to obtain the mass of SOC per unit volume of soil.
Because there was no site-specific soil profile information, we excavated a soil pedon
and did profile description according to the procedure of Schoenebcrger et al.
The plain slope decreases from east to west while parent materials are transferred and sedimented from upper lands and around (east, pedon
1) to the center and west of the plain (pedon
analysis was carried out in soil pits at each site including detailed profile description and sampling of soil from each genetic horizon using standard field study methods (Soil Survey Division Staff 1993; Kheoruenromne 1999).
The quantitative characteristics of the humus status of soils originate mainly from the soil profile horizons database PEDON
and humus status research transect database CATENA created by us.
scored the Stratford points with a try and a conversion.
88 Catena Site position Pedon
([dagger]) Classification ([dagger]) Sterling: Summit Weld Fine-silty, mixed, mesic Aridic Argiustoll Side Satanta Fine-loamy, mixed, mesic Aridic Argiustoll Toe Albinas Fine-loamy, mixed, mesic Pachic Argiustoll Stratton: Summit Norka Fine-silty, mixed, mesic Aridic Argiustoll Side Richfield Fine, montmorillonitic, mesic Aridic Argiustoll Toe Kuma Fine-silty, mixed, mesic Pachic Argiustoll Walsh: Summit undefined Fine-Loamy, mixed mesic Aridic Ustochrept Side undefined Fine-Loamy, mixed mesic Ustollic Halplarid Toe Nunn Fine, montmorillonitic, mesic Aridic Argiustoll * L = loam, CL = clay loam, LS = loamy sand, SL = sandy loam, SCL = sandy clay loam.
The smallest classifiable unit in each area is called the pedon
and reflects a surface area of approximately one square meter (Figure 3-2).
The objective of this paper is to assess the extent of fractured unconsolidated geologic units underlying soils in Ohio by perusal of pedon
descriptions and laboratory data obtained during the Ohio Cooperative Soil Survey Program.