Ontology highlight
ABSTRACT:
SUBMITTER: Carstensen J
PROVIDER: S-EPMC3888664 | biostudies-other | 2014 Feb
REPOSITORIES: biostudies-other
Carstensen Jacob J Conley Daniel J DJ Bonsdorff Erik E Gustafsson Bo G BG Hietanen Susanna S Janas Urzsula U Jilbert Tom T Maximov Alexey A Norkko Alf A Norkko Joanna J Reed Daniel C DC Slomp Caroline P CP Timmermann Karen K Voss Maren M
Ambio 20140201 1
Hypoxia has occurred intermittently over the Holocene in the Baltic Sea, but the recent expansion from less than 10 000 km(2) before 1950 to >60 000 km(2) since 2000 is mainly caused by enhanced nutrient inputs from land and atmosphere. With worsening hypoxia, the role of sediments changes from nitrogen removal to nitrogen release as ammonium. At present, denitrification in the water column and sediments is equally important. Phosphorus is currently buried in sediments mainly in organic form, wi ...[more]