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Ulli Seibt

Researcher at University of California, Los Angeles

Publications -  37
Citations -  2179

Ulli Seibt is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Carbonyl sulfide & Stomatal conductance. The author has an hindex of 20, co-authored 29 publications receiving 1721 citations. Previous affiliations of Ulli Seibt include Max Planck Society & University of California, Davis.

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Carbon isotopes and water use efficiency: sense and sensitivity

TL;DR: The relationship between plant water use efficiency and carbon isotope signatures (δ13C) of plant material is revisited and a model available at http://carbonisotopes.googlepages.com is offered to explore how waterUse efficiency and 13C discrimination are related across leaf and canopy scales.
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Large historical growth in global terrestrial gross primary production

TL;DR: This work presents a global, measurement-based estimate of GPP growth during the twentieth century that is based on long-term atmospheric carbonyl sulfide records, derived from ice-core, firn and ambient air samples, and interprets these records using a model that simulates changes in COS concentration according to changes in its sources and sinks.
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Variations in 13C discrimination during CO2 exchange by Picea sitchensis branches in the field

TL;DR: It is concluded that isotopic disequilibria between the gross fluxes of photosynthesis and day respiration can explain the high observed (13)Delta values during net photosynthetic gas exchange.
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Reviews and syntheses: Carbonyl sulfide as a multi-scale tracer for carbon and water cycles

TL;DR: For the past decade, observations of carbonyl sulfide (OCS or COS) have been investigated as a proxy for carbon uptake by plants as discussed by the authors, which can be used in conjunction with other independent measures of ecosystem function, like solar-induced fluorescence and carbon and water isotope studies.
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Carbon Isotope Fractionation during Photorespiration and Carboxylation in Senecio

TL;DR: The results emphasize that the effects of photorespiration must be taken into account when partitioning net CO2 exchange of ecosystems into gross fluxes of photosynthesis and respiration.