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Projects / Programmes source: ARRS

The Ljubljana Marsh - assessment of environmental change by activity and structure of microbial community

Research activity

Code Science Field Subfield
4.03.00  Biotechnical sciences  Plant production   

Code Science Field
B410  Biomedical sciences  Soil science, agricultural hydrology 
B260  Biomedical sciences  Hydrobiology, marine biology, aquatic ecology, limnology 
B230  Biomedical sciences  Microbiology, bacteriology, virology, mycology 
Keywords
Peatlands, soil organic matter, decomposition, water table level, gas emissions, microorganisms, activity, community structure
Evaluation (rules)
source: COBISS
Researchers (10)
no. Code Name and surname Research area Role Period No. of publications
1.  08320  PhD Gorazd Avguštin  Animal production  Researcher  2004 - 2007  351 
2.  03156  MSc Polonca Čadež  Biochemistry and molecular biology  Researcher  2004 - 2007  64 
3.  03383  PhD Ivan - Janez Hacin  Plant production  Researcher  2004 - 2007  112 
4.  25520  PhD Vesna Jerman  Pharmacy  Junior researcher  2005 - 2007  38 
5.  22492  PhD Barbara Kraigher  Biology  Junior researcher  2004 - 2007  107 
6.  17794  Simona Leskovec    Technician  2004 - 2007  25 
7.  07043  PhD Ivan Mahne  Plant production  Researcher  2004 - 2007  200 
8.  05993  PhD Ines Mandić-Mulec  Biotechnology  Principal Researcher  2004 - 2007  579 
9.  13005  PhD David Stopar  Plant production  Researcher  2004 - 2007  436 
10.  19104  PhD Blaž Stres  Animal production  Researcher  2004 - 2007  348 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0481  University of Ljubljana, Biotechnical Faculty  Ljubljana  1626914  64,121 
Abstract
Wetlands perform several ecologically important functions. As surface water discharge and ground water recharge areas, they help to maintain water balance and the supply of drinking water in broader geographical regions nearby. Water is the dominant factor determining development of soils and associated biological communities in wetlands. Peatlands are habitats with the largest content of soil organic matter, which can be rapidly decomposed by microorganisms, resulting in green-house gas emissions and pollution of ground water with nitrate. Pathways and rates of organic matter decomposition are controlled by water levels. The Ljubljana Marsh belongs to the vast group of degraded peatlands as a consequence of drainage and agricultural land use during the past 200 years. Renaturation efforts with rapid and uncontrolled rise of water table level in various peatland habitats will have unpredictable and most likely unwanted ecological consequences, due to lack of appropriate studies. The aim of our project is to study the effect of water table levels and concomitant change in physico-chemical parameters on the microbial proceses and structure of microbial community, whose activity is manifested in peat decomposition, green-house gas emissions and ground water pollution. Studies will be conducted in the field and in laboratory incubation experiments. By relating seasonal shifts in functional communities (ammonia oxidizers, denitrifiers, methanogens) to their metabolic potentials, measured in soils with different organic matter content, at seasonal extremes of environmental parameters (water level, temperature), we should elucidate the role of major environmental factors (soil organic matter content, water table level, temperature) affecting community structure and activity in peatlands.
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