POSTAGROGENIC TRANSFORMATION AND ASSESSMENT OF CARBON STOCKS OF KARELIA UNUSED FORAGE LANDS PHYTOCENOSIS

Authors

  • O. N. Bakhmet Karelian Scientific Center of the Russian Academy of Sciences
  • L. P. Evstratova Karelian Scientific Center of the Russian Academy of Sciences
  • E. V. Nikolaeva Karelian Scientific Center of the Russian Academy of Sciences
  • E. V. Dubina-Chekhovich Karelian Scientific Center of the Russian Academy of Sciences

DOI:

https://doi.org/10.31857/S2500208224060044

Keywords:

hayfields, unused forage lands, perennial grasses, species composition, yield, aboveground phytomass, carbon

Abstract

On forage lands overgrown with vegetation of low value for agricultural production, the postagrogenic transformation of the grass cover manifested itself in a decrease in the total projective coverage up to 1.7 times (compared with hayfields 94.8-99.0%) and heterogeneity of the species composition. The coefficients of floral similarity of haymaking Jacquard and forage lands with the curtin type of overgrowth averaged 0.45, and with the solid type – 0.39. Grass-cereal or cereal-grass stands were mainly composed of rhizomatous and turf-bearing plant species. The reserves of absolutely dry aboveground mass (4.86 t/ha) and carbon (2.04 t C/ha) of hayfields significantly exceeded (up to 1.5 times) the corresponding indicators of unused forage lands.

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Published

2024-12-10

Issue

No. 6 (2024): November-December

Section

РАСТЕНИЕВОДСТВО И СЕЛЕКЦИЯ

How to Cite

Bakhmet, O. N., Evstratova, L. P., Nikolaeva, E. V., & Dubina-Chekhovich, E. V. (2024). POSTAGROGENIC TRANSFORMATION AND ASSESSMENT OF CARBON STOCKS OF KARELIA UNUSED FORAGE LANDS PHYTOCENOSIS. Vestnik of the Russian Agricultural Science, 6, 17-20. https://doi.org/10.31857/S2500208224060044