RADALP-2: The hydrosphere and the microbial biomass within the radioecological monitoring of alpine environments - methods and quantification
Abstract
The alps are the main water reservoir of Austria. Beside the direct influence through man (e.g. tourism) the ecological system of the alps is highly exposed to and endangered by the increase of temperature during global warming and atmospherical input of environmental pollutants. The global fallout of radionuclids during nuclear weapon tests in the 50th and 60th of this century led to increased nuclide contamination of high altitude areas because of more effective wet decompostion. Furthermore, the Chernobyl fallout was high in the Austrian alps because of increased rainfall and snow in these areas. This nuclide inventory of the alps, stored in the alpine soils and glaciers, might be released by global warming. To evaluate radionuclide input into the hydrosphere, methods have to be developed which - are usefull in orographically difficult structured landscape - give good representation of highly structured areas - do not disturb the ecosystem The second aim of this project is to get information about the soil microbial influence to radionuclide cycling and turnover. The soil microbial biomass (fungi and bacteria) has a fundamental position in mobilisation, turnover and decomposition of organic substances and nutrients. The quite similar chemistry of radioceasium and radiostrontium with important plant nutrients like potassium and calcium give high evidence for soil microbial influence within the soil-plant-transfer. Therefore, investigations onto microbial biomass, microbial diversity, microbial activity and the microbial Cs-pool are planned to substancially increase knowledgement of radionuclide modelling and soil-plant-transfers.
keywords soil microbiology Cs-pools
Publikationen
The role of microbial biomass on radiocesium immobilisation in undisturbed alpine meadow soils
Autoren: Stemmer, M., Hromatka, A., Strebl, F. Jahr: 2002
Conference & Workshop proceedings, paper, abstract
The role of the microbial biomass on radiocesium immobilisation in undisturbed alpine meadow soils.
Autoren: Hromatka, A., Stemmer, M., Strebl, F. Jahr: 2002
Conference & Workshop proceedings, paper, abstract
Altitude dependency of 137Cs soil-plant transfer in Austrian alpine grasslands.
Autoren: Strebl, F., Bossew, B., Lettner, H., Stemmer, M. Jahr: 2002
Conference & Workshop proceedings, paper, abstract
Integrated methods for the environmental assessment of radiocesium in alpine landscapes.
Autoren: Lettner, H., Bossew, P., Gastberger, M., Hubmer, A., Stemmer, M., Strebl, F., Papesch, W., Hromatka, A. Jahr: 2002
Conference & Workshop proceedings, paper, abstract
Project staff
Martin Gerzabek
Univ.Prof. Dipl.-Ing. Dr. Dr.h.c.mult. Martin Gerzabek
martin.gerzabek@boku.ac.at
Tel: +43 1 47654-91112
Project Staff
01.10.2000 - 31.12.2001
BOKU partners
External partners
Austrian Research Centers
none
partner
Austrian Research and Testing Centre Arsenal
none
partner
AGES - Österreichische Agentur für Gesundheit und Ernährungssicherheit GmbH
none
partner
University of Salzburg, Institute of Physics and Biophysics
Dr. Herbert Lettner
coordinator