Naslov
ES1406 COST Action: Soil fauna: Key to Soil Organic Matter Dynamics and Fertility. How far have we got?

Autori
Jiménez, Juan ; Filser, Juliane ; Barot, Sébastien ; Berg, Matty ; Briones, Maria J.I. ; Butt, Kevin ; Curiel-Yuste, Jorge ; Deckmyn, Gaby ; Domene, Xavier ; Faber, Jack ; Frey, Beat ; Frossard, Aline ; Frouz, Jan ; Grebenc, Tine ; Guggenberger, Georg ; Hackenberger Kutuzović, Davorka ; Iamandei, Maria ; Jones, Davey ; Joschko, Monika ; Krogh, Paul

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Geophysical Research Abstracts / - , 2018

Skup
EGU General Assembly

Mjesto i datum
Beč, Austrija, 08.04.2018. - 13.04.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
soil organic matter, soil fertility, mineralization

Sažetak
Soil organic matter (SOM) is key to soil fertility, climate change mitigation, combatting land degradation, andthe conservation of above- and below-ground biodiversity and associated ecosystem services like decomposition, nutrient cycling, carbon sequestration, detoxification and maintenance of soil physico-chemical properties. SOMdynamics represent the balance between the input of plant material (residues, root-derived materials) and the outputthrough decomposition (OM mineralization) by organisms, erosion and leaching. Approximately 20% of globalCO2emissions, one third of global CH4 emissions and two thirds of N2O emissions originate from soils. Inmany soils, most of the macro-aggregate structure is formed by the activities of soil invertebrates and roots, withimportant consequences for soil organic matter dynamics, carbon sequestration and water infiltration at severalspatial and temporal scales. Current models of SOM dynamics are defined in terms of plant residues input andmicrobial decomposition, overlooking the important contribution of soil fauna. The composition and activity ofsoil fauna greatly vary with respect to climate and land use. SOM modelling has thus far largely ignored soilfauna due to various reasons: i) hardly existing communication between [C flow centered] biogeochemistry and[organism- centered] soil ecology, ii) lack of [awareness of] data on soil animals (both in the field and from labora-tory experiments) and, iii) two different visions by soil ecologists: foodweb vs. self-organization. An internationalinterdisciplinary approach (COST Action ES1406) is the proper platform for both experimentalists and modellersto discuss and provide solutions. This Action has fostered networking and collaboration for improved SOM mod-els by implementing the role of the soil fauna as a basis for sustainable soil management. Key challenges in SOMmanagement, soil fauna and modelling will be addressed and how far have we got thus far to meet the objectivesof this Action.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA