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Seasonal dynamics of biomass partitioning in a tall sedge, Carex acuta L.

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F15%3A00471246" target="_blank" >RIV/86652079:_____/15:00471246 - isvavai.cz</a>

  • Alternative codes found

    RIV/60076658:12220/15:43889329

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.aquabot.2015.05.005" target="_blank" >http://dx.doi.org/10.1016/j.aquabot.2015.05.005</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.aquabot.2015.05.005" target="_blank" >10.1016/j.aquabot.2015.05.005</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Seasonal dynamics of biomass partitioning in a tall sedge, Carex acuta L.

  • Original language description

    The demographic and production characteristics were investigated in Carex acuta L., a common dominant of temperate herbaceous wetlands. The seasonal courses of shoot density and biomass were followed in a model population using the method of successive harvests for eight years. Destructive and non-destructive types of measurement were combined in order to study the biomass turnover at the level of single shoots. Belowground biomass was estimated from soil blocks and related to shoot density. The seasonal maximum of total aboveground biomass varied from 400 to 750 g m2, of which C. acuta formed 25–90%. Vegetative shoots accounted for 90% of the total shoot density and 95% of the species’ aboveground biomass. They invested about 90% of their annual production to leaf blades; new leaves were produced from early spring to top summer and increased their dry weight until late autumn. The generative shoots allocated about 2/3 of their annual production to the stem with inflorescence. They grew fast in spring but died off soon after seed maturation in July. The annual production was 2.7 g and less than 2.0 g dry weight for vegetative and generative tillers, respectively. The turnover rates, reflecting the dry weight of leaves lost during the vegetation season, were 1.2–1.3 year1 and 1.0–1.1 year1 for vegetative and generative shoots, respectively. Leaves had a smaller dry weight and a smaller specific leaf mass after, than before their death. This difference, which was ascribed to the downward re-translocation of mobile materials, accounted for 20% dry weight of the leaves prior to dying out. Roots formed about 90% of the live belowground biomass. The average root dry weight was about 2 g per shoot in spring and summer and increased to about 5 g per shoot by the end of the vegetation season. The annual aboveground primary production of C. acuta can be underestimated by about 1/3 if the turnover rate and downward re-translocation are not considered.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EF - Botany

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GAP504%2F11%2F1151" target="_blank" >GAP504/11/1151: Role of plants in the greenhouse gas budget of a sedge fen</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2015

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Aquatic Botany

  • ISSN

    0304-3770

  • e-ISSN

  • Volume of the periodical

    125

  • Issue of the periodical within the volume

    aug

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    8

  • Pages from-to

    64-71

  • UT code for WoS article

    000358095300009

  • EID of the result in the Scopus database

    2-s2.0-84930936067