New approaches to forest above-ground biomass assessment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F15%3A00455407" target="_blank" >RIV/67179843:_____/15:00455407 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

New approaches to forest above-ground biomass assessment

Popis výsledku v původním jazyce

Respiration of the ecosystem returns a big portion of the CO2 assimilated by photosynthesis and the balance between these two carbon fluxes determines whether ecosystems represent sinks or sources for CO2. In this study we investigated the relationship between temperature and CO2 efflux from different ecosystem components of a spruce forest and a wetland. In addition, we also focused on factors that disturbed this relationship. The relationship between temperature and soil CO2 efflux was influenced by water stress through slower diffusion of substrates to the microbes and in lower activity of enzymes or, in contrast, by high soil water content through the lack of oxygen. The relationship between temperature and stem CO2 efflux was affected by stem growth and sap flow rate. And finally, the relationship between temperature and needle CO2 efflux can be influenced by water stress and type of the previous photoperiod (sunny/cloudy).

Název v anglickém jazyce

New approaches to forest above-ground biomass assessment

Popis výsledku anglicky

Respiration of the ecosystem returns a big portion of the CO2 assimilated by photosynthesis and the balance between these two carbon fluxes determines whether ecosystems represent sinks or sources for CO2. In this study we investigated the relationship between temperature and CO2 efflux from different ecosystem components of a spruce forest and a wetland. In addition, we also focused on factors that disturbed this relationship. The relationship between temperature and soil CO2 efflux was influenced by water stress through slower diffusion of substrates to the microbes and in lower activity of enzymes or, in contrast, by high soil water content through the lack of oxygen. The relationship between temperature and stem CO2 efflux was affected by stem growth and sap flow rate. And finally, the relationship between temperature and needle CO2 efflux can be influenced by water stress and type of the previous photoperiod (sunny/cloudy).

Druh

C - Kapitola v odborné knize

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Global Change & Ecosystems

ISBN

978-80-87902-14-1

Počet stran výsledku

11

Strana od-do

186-196

Počet stran knihy

215

Název nakladatele

Global Change Research Centre, Academy of Sciences of the Czech Republic, v. v. i

Místo vydání

Brno

Kód UT WoS kapitoly

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