Project Details
Projekt
FOR 566: Veterinary Medicines in Soils: Basic Research for Risk Analysis
Subject Area
Agriculture, Forestry and Veterinary Medicine
Geosciences
Medicine
Geosciences
Medicine
Term
from 2005 to 2015
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 5471428
Veterinary medicines may enter soils along with manure applications. Recently ecologically effective concentrations of antibacterial veterinary medicines have been detected in soil. However, fundamental model ideas for a comprehensive analysis of the resulting risks are lacking. Existing knowledge on the environmental fate of hydrophobic pollutants allows only for limited conclusions on the dynamics of the polar veterinary medicines. Effects of additional C sources and co-solvents on binding, degradation, and transport of veterinary medicines are hardly predictable for complex organic mixtures like manure. Effects of the manure on the environmental toxicity of these substances in soil are, according to our knowledge, not investigated at all.
Therefore, it is the superimposing objective of the Research Unit to elucidate, with two different target substances (sulfadiazine and difloxacin), how the ecotoxicological effects of these substances in soil are coupled with their dynamics under the influence of manure. We recognise several open questions in the area of dynamics (e.g. degradation and metabolism, sequestration, scale-dependent redistribution), of effects (e.g. on structure and function of microorganisms, antibiotic resistant gene abundance and diversity) and particularly of the space-time coupling of dynamics and effects of the target substances in soil (from milliseconds to years and from the mineral surface to the soil profile).
To answer these questions we will in the first phase identify, predominantly with laboratory and controlled field experiments, the relevant scales and processes as well as their mode of interaction in time. Hence, we will quantify the rates which control the dynamics and effects of the substances in soil alone and under the influence of manure. In a second phase the processes will be coupled, upscaled from µm to plot size, and their relevance further verified in a joint outdoor test. Therewith we can reveal and quantify the dominating factors and mechanisms that control the fate of the target substances in soils under the influence of manure. The Research Unit comprises of totally eight individual research teams. Four teams are dealing with the fate of the target substances in soils, three groups address the effect on soil microbes and one group connecting both through modelling.
Therefore, it is the superimposing objective of the Research Unit to elucidate, with two different target substances (sulfadiazine and difloxacin), how the ecotoxicological effects of these substances in soil are coupled with their dynamics under the influence of manure. We recognise several open questions in the area of dynamics (e.g. degradation and metabolism, sequestration, scale-dependent redistribution), of effects (e.g. on structure and function of microorganisms, antibiotic resistant gene abundance and diversity) and particularly of the space-time coupling of dynamics and effects of the target substances in soil (from milliseconds to years and from the mineral surface to the soil profile).
To answer these questions we will in the first phase identify, predominantly with laboratory and controlled field experiments, the relevant scales and processes as well as their mode of interaction in time. Hence, we will quantify the rates which control the dynamics and effects of the substances in soil alone and under the influence of manure. In a second phase the processes will be coupled, upscaled from µm to plot size, and their relevance further verified in a joint outdoor test. Therewith we can reveal and quantify the dominating factors and mechanisms that control the fate of the target substances in soils under the influence of manure. The Research Unit comprises of totally eight individual research teams. Four teams are dealing with the fate of the target substances in soils, three groups address the effect on soil microbes and one group connecting both through modelling.
DFG Programme
Research Units
Projects
- Degradation and residue dynamics of veterinary medicines in soil-plant systems (Applicant Schäffer, Andreas )
- Dissipation and sequestration of veterinary medicines in soil under dynamic moisture conditions (Applicant Amelung, Wulf )
- Effects of veterinary medicines in manure on the abundance and transfer of bacterial antibiotic resistance genes in soil: importance of the rhizosphere and of prepeated manure applications (Applicant Smalla, Kornelia )
- Effects of veterinary medicines in manure on the abundance and transfer of bacterial antibiotic resistance genes in soils in dependence of varying soil moisture conditions (Applicant Smalla, Kornelia )
- Effects of veterinary medicines on the functional diversity of the microbial biomass in different soil compartments in dependence of varying soil moisture conditions (Applicants Schloter, Michael ; Wilke, Berndt-Michael )
- Effects of veterinary medicines on the functional diversity of the microbial biomass in soils (Applicants Schloter, Michael ; Wilke, Berndt-Michael )
- Effects of Veterinary Medicines on the Structural Diversity of the Microbial Community in the Rhizosphere under the Impact of temporal Moisture Gradients- GradMic (Applicant Thiele-Bruhn, Sören )
- Fate, metabolism and plant uptake of selected veterinary medicines in the rhizosphere (Applicant Spiteller, Michael )
- Metabolization/ bound residues and mineralization of veterinary antibiotic residues in soil under dynamic soil moisture and temperature conditions (Applicant Spiteller, Michael )
- Modeling of rhizosphere influences on interactions between chemical dynamics and effects of veterinary medicines in soil (Applicant Matthies, Michael )
- Modelling of the Environmental Fate and Effects of Veterinary Medicines in Soil under Field Conditions (Applicant Matthies, Michael )
- Sequestration of veterinary medicines in soils (Applicant Amelung, Wulf )
- Sequestration of Veterinary Medicines in Soils (Applicant Kaupenjohann, Martin )
- Transport of veterinary medicines from soils to groundwater (Applicant Vereecken, Harry )
- Transport of veterinary medicines from soils to groundwater under variable soil moisture and temperature conditions (Applicant Vereecken, Harry )
- Veterinary medicinal effects on the prokaryotic structural diversity in soil microcopartments - VMMic (Applicant Thiele-Bruhn, Sören )
Spokesperson
Professor Dr. Wulf Amelung
