Pedodiversity on Soil Maps at the District Level

Eurasian Soil Science - The analysis of soil maps for three districts of Bryansk oblast demonstrates that the rank distributions of polygon areas for low soil taxonomic units on these maps have a...     

Spatial variability in the distribution of particle-size fractions in agrogray soils and agrogray soils with the second humus horizon

The degree of spatial variability in the distribution of particle-size fractions has been determined for agrogray soils of an experimental field of Bryansk Agricultural Academy. The degree of spatial variability is close to the analytical error; for comparing different plots, particle-size distribution analysis has to be performed in two-three replicates. If the particular sets of data (e.g., data sets on the content of clay in the upper and lower parts of the plow horizon) are used, the statistical probability of differences increases. Cluster analysis can be used for the initial grouping of particle-size distribution data.     

Dynamics of bulk composition of gray forest soil under agricultural treatment

It is shown that the bulk composition of the plow layer of gray forest easy-loamy soil in forests under agricultural treatment is enriched with phosphorus, calcium, and molybdenum. For these elements, no differences are found between different types of treatment. The trends for zinc and copper have opposite results under different types of treatment.