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Archiv-Übersicht     Angebot Nr. 13493

Angebotsdatum: 4. Juli 2019
Art der Stelle: Doktorarbeit
Fachgebiet: Geowissenschaften > Geoökologie
Titel des Themas: Impact assessment of vascular plant encroachment on water and carbon cycling in a Sphagnum dominated bog

Institut: Thünen Institut of Climate-Smart Agriculture
Adresse:
Dr. rer. nat. Arndt Piayda
Bundesallee 65
38116 Braunschweig, Germany
Tel.:    Fax.:
Bundesland: Niedersachsen
Homepage:
E-Mail Kontakt: mail

Beschreibung: Rewetting of previously used raised bogs is an effective, cost-efficient and widely used measure for greenhouse gas emission reduction and biodiversity conservation. The success of this measure is increasingly threatened by the encroachment of multi-layered tree and grass communities. The causes and effects of this encroachment on the water and carbon
cycle are largely unknown.

Tasks:
- Adaptation of the used SVAT model to the conditions of the test sites with special consideration of the multi-layered vegetation cover including bryophytes as well as the soil physical properties of the peat
- Modeling water and carbon fluxes of the two study sites using eddy covariance and chamber flux data to derive ecophysiological parameters of the involved plant functional groups
- Partitioning of the atmosphere exchange at the ecosystem level in peat, moss and vascular plant contributions as well as quantification of the annual balance with propagation of parameter uncertainties
- Assessment of vascular plant encroachment on rewetted raised bog ecosystems with respect to emission reduction and nature conservation targets, as well as the evaluation of common conservation measures
- Contribution to field and laboratory work
- Writing scientific publications

More details at:
https://www.thuenen.de/en/infothek/stellenangebote/?&id=253&L=1&job_id=3874&p=1
Methoden:
Anfangsdatum: 1. September 2019
Geschätzte Dauer: 3 years
Bezahlung:
Papers:
Sonstiges:

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