Main subject area: Soil science, plant science
Danish agriculture face a majestic challenge to become carbon-neutral by 2050. In order to reach this goal our agricultural soil needs to be transformed from carbon sources to carbon sinks. In order to achieve this transformation, we need to deepen our understanding of how different plant derived compounds cycle into the soil organic matter pools across the whole root zone soil profile and how plant residues and exudates contributes to the formation of stable carbon and emissions of N, e.g. N2O. The master project aims at investigating cycling organic compounds of increasing molecular size into the soil microbial biomass by conducting lab scale experiments with molecular size fractionation of legume and non-legume derived compounds and subsequent incubation in soils with different histories.
Any time
AU Viborg
Blichers Alle 20, Tjele, 8830-DK
45 ECTS: Experimental theses in which the student is responsible for collection and analysis of his/her own original data
60 ECTS: Experimental theses in which the student is responsible for planning, trial design and collection and analysis of his/her own original data
Co-supervision from postdoc Leanne Peixoto.
Enggrob, K.L., Larsen, T., Peixoto, L., Rasmussen, J., 2020. Gram-positive bacteria control the rapid anabolism of protein-sized soil organic nitrogen compounds questioning the present paradigm. Scientific Re-ports 10, 9.
Peixoto, L., Elsgaard, L., Rasmussen, J., Kuzyakov, Y., Banfield, C.C., Dippold, M.A., Olesen, J.E., 2020. Decreased rhizodeposition, but increased microbial carbon stabilization with soil depth down to 3.6 m. Soil Biology & Biochemistry 150, 10.
