10.18453/rosdok_id00004187 Prüter, Julia Julia Prüter http://d-nb.info/gnd/1281979058 Universität Rostock 2022 333.7 Natural resources, energy and environment 570 Life science 630 Agriculture 2022 en http://purl.uni-rostock.de/rosdok/id00004187 urn:nbn:de:gbv:28-rosdok_id00004187-9 Phosphorus (P) is indispensable for organisms but also contributes to eutrophication in aquatic ecosystems. The objective of the work was to characterize P speciation and transformation at boundaries between land and sea. Samples were analyzed by sequential P fractionation, P X-ray absoprtion near edge structure spectroscopy and 31P nuclear magnetic resonance spectroscopy. Results confirmed a transition from labile Fe- and Al P in terrestrial soils towards stable Ca-P in aquatic sediments. To protect aquatic ecosystems from further P inputs, sinks for P have to be preserved.