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Modeling of soil CO2 efflux during water table fluctuation based on in situ measured data from a sedge-grass marsh

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F16%3A00459668" target="_blank" >RIV/86652079:_____/16:00459668 - isvavai.cz</a>

  • Výsledek na webu

    <a href="http://dx.doi.org/10.15666/aeer/1403_423437" target="_blank" >http://dx.doi.org/10.15666/aeer/1403_423437</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.15666/aeer/1403_423437" target="_blank" >10.15666/aeer/1403_423437</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Modeling of soil CO2 efflux during water table fluctuation based on in situ measured data from a sedge-grass marsh

  • Popis výsledku v původním jazyce

    Soils of wetland ecosystems serve as a huge storage of organic carbon. Its decomposition and consequent release of CO2 into the atmosphere is highly affected by soil hydrology, and this release of CO2 may severely increase during future climate change. The aim of this study was to describe the immediate response of soil CO2 efflux to temperature and changes in water level. Soil CO2 efflux from a marsh, temperature and the water table were continuously measured in situ during a gradual decrease of the water table and its consequent rapid increase after heavy rain. CO2 efflux fluctuated as it followed diurnal changes in temperature. However, it showed an increasing trend as the water table decreased. After the rain, the water table rose above the soil surface and soil CO2 efflux dropped fast to nearly zero. A simple model based on soil temperature and water table level was created to estimate soil CO2 efflux. There was far better agreement between this model and measured data than with the widely used model based only on temperature. The results showed the importance of including the soil water conditions in models for estimating soil CO2 efflux at sites with a high water table level.

  • Název v anglickém jazyce

    Modeling of soil CO2 efflux during water table fluctuation based on in situ measured data from a sedge-grass marsh

  • Popis výsledku anglicky

    Soils of wetland ecosystems serve as a huge storage of organic carbon. Its decomposition and consequent release of CO2 into the atmosphere is highly affected by soil hydrology, and this release of CO2 may severely increase during future climate change. The aim of this study was to describe the immediate response of soil CO2 efflux to temperature and changes in water level. Soil CO2 efflux from a marsh, temperature and the water table were continuously measured in situ during a gradual decrease of the water table and its consequent rapid increase after heavy rain. CO2 efflux fluctuated as it followed diurnal changes in temperature. However, it showed an increasing trend as the water table decreased. After the rain, the water table rose above the soil surface and soil CO2 efflux dropped fast to nearly zero. A simple model based on soil temperature and water table level was created to estimate soil CO2 efflux. There was far better agreement between this model and measured data than with the widely used model based only on temperature. The results showed the importance of including the soil water conditions in models for estimating soil CO2 efflux at sites with a high water table level.

Klasifikace

  • Druh

    J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

  • CEP obor

    EH - Ekologie – společenstva

  • OECD FORD obor

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 - Rozvoj Centra pro studium dopadů globální změny klimatu</a><br>

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2016

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název periodika

    Applied Ecology and Environmental Research

  • ISSN

    1589-1623

  • e-ISSN

  • Svazek periodika

    14

  • Číslo periodika v rámci svazku

    3

  • Stát vydavatele periodika

    HU - Maďarsko

  • Počet stran výsledku

    15

  • Strana od-do

    423-437

  • Kód UT WoS článku

    000383084700028

  • EID výsledku v databázi Scopus

    2-s2.0-84977562318