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ISSN: 1575-2844

Revista Vivat Academia

 Histórico Año III

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Julio - Agosto 2001. Nº 27

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Ofertas de trabajo
2-years post-doc position available at the Norwegian Polar Institute (NPI)
Doctoral Candidate Position

Ofertas de trabajo

2-years post-doc position available at the Norwegian Polar Institute (NPI)

The European Project for Ice Coring in Antarctica (EPICA) aims at retrieving two deep ice cores from Dome C and Dronning Maud Land (DML), respectively.

Deep drilling will start in DML during the 2001/02 austral summer. Since 1996, NPI has been involved in glaciological reconnaissance research in DML, in the search for a suitable deep drilling site. This work has included studies of accumulation (i.e., shallow ice core drillings; 20-160 metres), glacier dynamics, surface topography, meteorology, and internal layering in the firn.

Further work will follow two main directions: i) ice core analyses of a 160 metres long plateau ice core and a 100 metres long coastal core, both drilled in the 2000/01 season. Analyses include ECM, DEP, chemistry, activity, and physical properties; and ii) ice core analyses of the deep EPICA core from DML. Here, NPI will emphasise on analyses of electrical and physical properties. It is an advantage if the candidate has background in several of these fields. The candidate must be prepared to spend one austral summer season at the deep drill site in DML and take part in laboratory measurement campaigns that last for several weeks.

Extension of the 2-years contract is likely, but relies on continued funding. The preferred starting date is January 2002 but this is somewhat flexible. The salary for post-doc positions at NPI is currently NOK 339.100,- NOK /year (taxes excluded).

The Norwegian Polar Institute is the principal supplier of scientific information on Norwegian polar regions for the central government administration, acting as its consultant on polar matters and helping to ensure that the environment is managed as efficiently as possible, in keeping with international efforts to promote sustainable development. The Institute is the main Norwegian institution concerned with mapping and scientific and environmental investigations of Norwegian polar regions in the Arctic and Antarctica. It has the status of a directorate, and is responsible to the Norwegian Ministry of Environment

Applicants are asked to send their letter of intent and CV within 10 August

2001 to:
Dr. Jan-Gunnar Winther, Norwegian Polar Institute, Polar Environmental Centre, 
N-9296 Tromsø, Norway.

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Doctoral Candidate Position

The interaction between the rhizosphere and water soluble fraction as a function of crop yield
Where: Institute for Soil Ecology at the GSF Research Centre for Environment and Health in Neuherberg bei Muenchen (Munich)
Salary: ‡ (AT A13) (ask, please....)
Duration: 3 years (Jahre...).
Start: Fall 2001


Results to date have shown that the readily available humus or dissolved organic matter (DOM) fraction vary as a function of the crop yield. The areas with a higher crop yield consistently have DOM, which contains more Ñhumifiedì material. This results in several research questions:

Are the more 'humified' substanzes found in the DOM released directly by the rhizosphere, or are they released from the humus in the neighbouring soil matrix?
If the latter case is true, what materials are being released by the plant root system, which results in the release of such soil humus?
Does the exudated or liberated 'humified' material in the high crop yield areas have an ecological function?
Does it result in the loss of humic substances from the soil?
Can it have an effect on the physical properties of the soil, such as micro-aggregation?
Does the humified material result in a better exchange between the rhizosphere and the bulk soil? Does this have an effect on the crop yield?
What kind of transport processes could be playing a role here?
If it is found that the introduction of 'humified' material in the DOM has an ecological function, research will then be needed to determine, which management practices can be used to control or surpress its introduction.

This research will be undertaken at the GSF and at the Technical University of Munich within the Forschungsverbund Agrar–kosysteme Muenchen.

A knowledge of German is not necessary but would obviously be useful.

Contact person: Dr. Adam Zsolnay
Tel.: (089) 3187-3353
Institut f¸r Boden–kologie, GSF Fax: (089)
Ingolst"dter Landstr. 1
D-85764 Neuherberg bei Muenchen

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Última modificación: 11-10-2001