Soil metal-contamination meets global climate change: effects on soil properties and toxicity risks to soil biota
- M. González-Alcaraz 2
- C. Malheiro 2
- Nunes Cardoso 2
- A.R. Silva 2
- C. Quintaneiro 2
- A. Ferreira 2
- M. Alves 2
- I. Silva 2
- J. Alvarez-Rogel 3
- C. van Gestel 1
- I. Henriques 2
- S. Loureiro 2
-
1
VU University Amsterdam
info
-
2
Universidade de Aveiro
info
-
3
Universidad Politécnica de Cartagena
info
Año de publicación: 2019
Tipo: Aportación congreso
Resumen
Anthropogenic activities have been inducing alterations on Earth’s climatesystem. The Intergovernmental Panel on Climate Change (IPCC) predicts majorchanges towards the 21st century (e.g., higher frequency/intensity of floods anddroughts; increasing global air temperature). These alterations may impair thebiotic and abiotic components of terrestrial ecosystems, affecting their functioningand sustainability and thus the services they provide. This scenario may worsen inanthropogenic-degraded areas where soil biota has to deal with already multiplestressors (i.e., multi-stressed environments) and where the behaviour/distributionof the contaminants present may change depending on the prevailing climateconditions and therefore their toxicity too. So far most of the studies dealing withclimate change and soil toxicity risks have been focused on the effects of singleclimate factors on chemical-spiked soils, while less attention has been paid toclimate factors combinations and/or anthropogenic-degraded field soils. In orderto overcome this issue a new research line has been created in the Dept. Biology& CESAM from Aveiro University (Portugal) through the performance of thefollowing research projects: GLOBALTOX (Marie Sklodowska-Curieprogramme; 704332), METOXCLIM (FEDER, COMPETE 2020 and PortugueseFCT; POCI-01-0145-FEDER-029557) and MICROCLIM (French CNRS/INEEvia OHMI). The overall goal of the research line is to assess how biotic andabiotic components of field metal-contaminated soils may be affected under thecurrent global warming perspective, by using toxicity (measured by means of soilinvertebrates) and the associated changes in functional soil parameters (physicochemical, microbiological) as indicators of ecosystem services. A inter/multidisciplinary ecotoxicological approach is being applied to field metalcontaminated soils, using different invertebrate species and expositions tosingle/multiple climate factors (soil moisture content, air temperature, UVradiation and atmospheric CO2). Climate factor combinations are be based onIPCC future climate predictions. The research line considers changes in key soilparameters (e.g., pH, organic matter, metal availability, microbiology) and soilinvertebrates (e.g., body metal content, enzymatic biomarkers, gene expression) tounderstand the effects at organism/population level (e.g., survival, avoidancebehaviour, reproduction).