Loss of organic carbon and nitrogen forms from agricultural systems and pathways - orgANiC

Funding Period: 01.03.2024 - 31.03.2027

Cooperation: Dr. Daniel Graeber (UFZ) als Experte für DOC und DON in landwirtschaftlichen Einzugsgebieten, Dr. Oliver Lechtenfeld (UFZ) als Experte für hochauflösende Massenspektrometrie, zusammen mit IGB Berlin und Aarhus Universität, PI Prof. Brian Kronvang (Aarhus Universität) (Abb siehe Anhang, diese könnte in der Projektbeschreibung genutzt werden)

Project description:

The green transition of the Danish agricultural sector aims to achieve quantitative information on nitrogen (N) leaching to the aquatic environment, including organic N forms, as well as knowledge about the effects of greenhouse gas emissions and the carbon balance on agricultural land. The existing Danish knowledge base on losses of organic matter (OM) and organic nitrogen (ON) forms from farming activities on different soil types is very sparse due to the fact that most research undertaken during the last four to five decades has focused on the losses of inorganic N forms (nitrate) from agricultural fields. Therefore, the aim of orgANiC is to quantify the concentrations and losses of dissolved and particulate organic matter (DOM and POM) and the included organic nitrogen (N) (dissolved organic N (DON) and particulate organic N (PON) from a wide range of cropping systems, soil types and climate conditions via different hydrological pathways. This will be accomplished by collecting new data and making use of existing data from three well established monitoring and experimental designs: The Danish National Monitoring Programme in Agricultural Catchments, the Pesticide Leaching Assessment Programme, and long term experimental plots at Foulum, Askov and Flakkebjerg, Denmark. Analysis of DOM and DON will be supported by experts from UFZ (Dr. Daniel Graeber, Dr. Oliver Lechtenfeld) and IGB (Dr. Tobias Goldhammer). As a final outcome, orgANiC will develop a novel decision-support tool for assistance in modelling farm-scale losses of OM and ON from major Danish cropping systems (crops, fertilisation and tillage), soil types and climate conditions.