Soil condition as an indicator of terrestrial ecosystems bioresource potential (by the Prikhankai Lowland example)

An assessment of some meadow, marsh soils and agrobiocenoses at the Prikhankai Lowland was made according to two indicators, most important for defining soil fertility and availability of mineral nutrition elements for plants. In terms of humus/organic matter content, the soils fall into the range of gradations «low» – «very high». At the same time, 82% of soils belong to gradations with medium and higher humus contents. A little more than 50% of soils have an optimal slightly acidic and neutral reaction. The remaining soils with an acidic and strongly acidic reaction require its optimization to avoid the loss of soluble nutrients by the soil.