Structure of vegetation and phytomass and mortmass stocks in Mongun-Taiga mountain tundra-steppe ecosystems

5th International Summer School for Students and Young Scientists "Natural and Human Environment of Arctic and Alpine Areas: Relief, Soils, Permafrost, Glaciers, Biota Life Style of Native Ethnic Groups in a Rapidly Changing Climate"

生态环境科学

Mironycheva-Tokareva, N.P.^1 ; Ya Kudryashova, S.^1 ; Chumbaev, A.S.^1 ; Ermakov, N.B.^2 ; Kurbatskaya, S.S.^3 ; Samdan, A.M.^3 ; Kurbatskaya, S.G.^3

Institute of Soil Science and Agrochemistry SB RAS, Novosibirsk, Russia^1

FSFIS Nikitsky Botanical Gardens-National Scientific Center, Crimea, Russia^2

SBD Ubsunur International Biosphere Research Center, Kyzyl, Russia^3

关键词: Festuca;    High mountains;    Intermedia;    Phytomass;    Plant matter;    Quantitative indicators;    Species composition;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/232/1/012006/pdf
DOI  :  10.1088/1755-1315/232/1/012006

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The species composition and quantitative indicators of fractions aboveground and underground phytomass and mortmass of tundra-steppe ecosystems of the northern macroslope of the Mongun-Taiga Mountain. Steppe communities are submitted to such mountain-steppe species as Koeleria altaica, Bupleurum multinerve, Carex ediformis, Festuca kryloviana, Potentilla sericea, Artemisia commutata, Aster alpinus. Tundra formations are high-mountain meadow and tundra species Astragalus adsurgens, Oxytropis intermedia, Stellaria petraea, Festuca altaica u Artemisia frigida. The total stock of plant matter and the main stock of green phytomass are formed by the types of dominants, such as Oxytropis intermedia, Carex rupestris u Festuca altaica. The ecological interpretation of the values of species composition in the formation of stocks of plant matter and the features of the functioning of tundra-steppe ecosystems is presented on the basis of established values of the ratio of aboveground and underground phytomass and mortmass fractions.