Trefilova O. V., Efimov D. Yu., Oskorbin P. A., Murzakmatov R. T. Phytomass of Plant Communities at the Dumps of Opencast Coal Mines in the South of Central Siberia

Abstract

How to cite: Trefilova O. V.¹, Efimov D. Yu.¹, Oskorbin P. A.², Murzakmatov R. T.¹ Phytomass of plant communities at the dumps of opencast coal mines in the south of Central Siberia // Sibirskij Lesnoj Zurnal (Siberian Journal of Forest Science). 2016. N. 6: 38–48 (in Russian with English abstract).

DOI: 10.15372/SJFS20160604

© Trefilova O. V., Efimov D. Yu., Oskorbin P. A., Murzakmatov R. T., 2016

The paper presents the evaluation of the stock and structure of plant communities formed in the dumps Borodino brown coal pit (the eastern part of the Kansk-Achinsk coal basin). A comparison of different age dumps reclaimed with topsoil (TS), planned dumps and slopes. The observations cover the period from 2007 to 2009 and 2013. Almost immediately after its creation, on the surface dumps with TS forms a solid grassy vegetation, which characterized by high productivity. Over the next two decades, a biomass reserve decreases more than 2 times. The major portion of the biomass of 7 and 31–year–old community is concentrated in the 0–10 cm layer. These plant communities amount the original level of stocks and the structure of the biomass of both aboveground and underground areas no earlier than in 25–30 years. Forest plantations making to force the accumulation of biomass of young biogeocenosis formed on poor substrate (litostratah). The stock biomass of pine man–made stands on 30 % less than in the grasslands to growing on the dumps with TS. Slopes reclaimed dumps slowly overgrown and emerging communities, which characterized by a low of cover and productivity. The major portion of biomass locate in aboveground area. Significant seasonal variations in quantities of above–ground phytomass of plant communities of old dumps, indicating their «immaturity» in spite of the thirty years of the formation of vegetation.