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| Titel |
Determination of Soil Respiration rates and δ¹³C in situ using a spectroscopic Picarro G1101-i instrument |
| VerfasserIn |
Alf Ekblad, Robert Björk, Frank Hagedorn, Thomas Kätterer, Lorenzo Menichetti, Sonja Wipf |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250041519
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| Zusammenfassung |
| Variation in the δ13C-signature of soil respiration can be used as a tracer in ecological
research. Up until now, isotopic determinations have mainly been performed by gas sampling
and expensive and complex laboratory IRMS analyses. Recently, user friendly, portable and
less expensive spectroscopic instruments have become available on the market. However, if
these instruments give reliable data in dynamic systems under highly variable temperatures
and air humidity conditions is unknown. In this talk we will present results from the first
summer of tests of the use of a Picarro G1101-i cavity ringdown spectroscopy instrument
(size 43 x 25 x 59 cm; 26.3 kg) to determine the δ13C of soil respiration in various systems. |
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