Carbon fluxes of surfaces vs. ecosystems. Advantages of measuring eddy covariance and soil respiration simultaneously in dry grassland ecosystems

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F11%3A00363711" target="_blank" >RIV/67179843:_____/11:00363711 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.5194/bg-8-2523-2011" target="_blank" >http://dx.doi.org/10.5194/bg-8-2523-2011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/bg-8-2523-2011" target="_blank" >10.5194/bg-8-2523-2011</a>

Result language

angličtina

Original language name

Carbon fluxes of surfaces vs. ecosystems. Advantages of measuring eddy covariance and soil respiration simultaneously in dry grassland ecosystems

Original language description

An automated open system for measurement of soil CO2 efflux (Rsc) was developed and calibrated against known fluxes. The system was tested in the field, while estimating soil respiration simultaneously by the gradient method (Rsg) at a dry, sandy grassland site (Bugac, Hungary). Ecosystem respiration (Rego) was measured using the eddy covariance technique. The small chamber size (5 cm in diameter) made it possible to use the chambers in vegetation gaps. The correlation between ecosystem and soil CO2 efflux rates as measured by the independent methods was significant. The gradient method showed both up and downward CO2 fluxes originating from the main rooting zone after rains. Downward fluxes within the soil profile amounted to 15 % of the simultaneousupward fluxes and to 7.6 % of the total (upward) effluxes during the 3-month study. The upper 5 cm soil layer contributed to 50 % of the total soil CO2 efflux.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

—

Project

<a href="/en/project/ED1.1.00%2F02.0073" target="_blank" >ED1.1.00/02.0073: CzechGlobe - Center for Global Climate Change Impacts Studies</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

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

Name of the periodical

Biogeosciences

ISSN

1726-4170

e-ISSN

—

Volume of the periodical

8

Issue of the periodical within the volume

9

Country of publishing house

DE - GERMANY

Number of pages

12

Pages from-to

2523-2534

UT code for WoS article

000295375700008

EID of the result in the Scopus database

—