Variability of soil-ecological indexes in typical agrolandscapes of Southern Karelia

Abstract

Soil-ecological indexes were calculated for zonal and azonal automorphic and hydromorphic soils. The investigations were conducted on three test plots in Southern Karelia. It is shown that the soil-ecological indexes reflect well the limiting factors of soil fertility under conditions of humid climate of the Nonchernozemic zone: insufficient heat supply, excessive moistening, and low reserves of organic matter.