Productivity of Biocenosis Plants and Humus Accumulation Processes in Eroded Meadow-Chernozem Soils
Year: 2024
Type: article
Abstract: In long-term experiments, the content of humus in natural and agroecosystems on meadow-chernozem soils depended on the species diversity of plants, the state of the vegetation cover, the cultivation of the arable horizon and its erosion. During the 10-year observation period, the humus content in arable soil decreased by 4.5% relative to the initial state, while under meadow grasses, on the contrary, it increased by 22%. Then, during the 20-year accounting period, the processes of humus accumulation in the cultivated soil changed little. Among natural ecosystems, humus accumulation processes were most active in the humus-accumulative (A) and transitional horizons (AB) under the aspen forest. The reserves of humus and nutrients in eroded soils decreased dramatically, causing a decrease in the productivity of meadow grasses. It has been established that for a significant accumulation of humus (up to 8%) in the non-eroded soil of the 100-year period of ecosystem functioning, it is necessary to combine incoming carbon in the form of forest litter and roots with the biomass of perennial meadow grasses.
Source: Агрохимия
Authors: V. M. Nazariuk, F. R. Kalimullina
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDGs: Life on land, Zero hunger
Open Access status: bronze
OpenAlex ID: W4404546110