Extractable phosphorus and microbial biomass phosphorus from two UK grassland soils under elevated CO2, 2018-2020
Keane, J.B., Hartley, I.P., Phoenix, G.K., Taylor, C.R. (2023). Extractable phosphorus and microbial biomass phosphorus from two UK grassland soils under elevated CO2, 2018-2020. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/35921c93-2d9e-4e35-8de5-adbfc37641b4
This dataset contains information on bio-available phosphorus and microbial biomass phosphorus from two UK grassland soils and how this is affected by elevated CO2 (eCO2). The soils are from naturally phosphorus limited grasslands in the Peak District National Park, in northern England. The grasslands were exposed to eCO2 of 600 ppm, and ambient CO2 controls were maintained at ca. 400 ppm for three growing seasons (2018-2020). Soils were sampled once each year in October, and underwent extraction (bio-available phosphorus) or chloroform-fumigation-extraction (microbial biomass phosphorus) with 0.5M NaHCO3. Concentrations of phosphorus in the extracts were determined by ICP-OES.
Soils were processed in the laboratories of the University of Sheffield and soil extracts were analysed at the University of Exeter. Internal standards were used to quantify phosphorus concentrations and soil microbial phosphorus values which were unrealistic (negative) were discarded.
NERC EDS Environmental Information Data Centre