This dataset includes sediment trap, sediment core and loss-on-ignition to total organic carbon measurements from a PhD research project at Rostherne Mere in Cheshire. These data were collected to show the relationship between the changing nutrient loads and subsequent organic carbon burial over the last 120 years. The sediment trap data cover the period from May 2010 to August 2016, while the sediment core was taken in September 2011 and has been 210Pb dated to circa 1360AD. All data is presented for date, loss-on-ignition (LOI) and calcium carbonate (CaCO3), with sediment trap data converted into net flux measurements and sediment core data calculated for net sedimentation rate following 210Pb dating. The conversion from LOI to total organic carbon was measured using mass spectrometry and applied to the trap and core data. The work was carried out as part of a Natural Environment Research Council (NERC) funded PhD [grant number NE/L002493/1], with part of the work also funded by the NERC small grant [grant number NE/H011978/1].
Publication date: 2018-08-09
This dataset is part of the following
Sediment trapping using two sequencing traps at 10 m and 25 m water depth was carried out at Rostherne Mere from May 2010 to September 2016. The traps sequentially opened into 12 individual 250 ml HDPE bottles, each representing a 2-week collection period (except in January and February longer collection periods of up to 4 weeks were used). The traps were reset every 6 months as dictated by the trapping interval used, with trap sediment kept cool, dark and sealed during transport to the laboratory where it was stored frozen prior to analysis. A 112 cm long sediment core was collected at 26 m water depth in September 2011 using a Livingstone piston corer. The sealed core was transported vertically to the laboratory, and stored vertically in a dark cold room at 5Â° C, prior to extrusion at 1 cm intervals for the upper 50 cm of sediment, and then at 0.5 cm intervals for the remainder of the core. Mass-spectrometry elemental analysis was conducted for 23 sediment samples from a combination of sediment core and sediment trap sources. A range of organic matter percentage (OM%) samples were selected to generate an estimated OM to total organic carbon (TOC) conversion, specifically for application to Rostherne Mere sediment samples. The data was collated to Excel spreadsheets held by the lead author at Loughborough University. For ingestion into the Environmental Information data was extracted from the Excel spreadsheets and converted into a comma separated file.