Quantifying the rate and depth dependence of bioturbation based on optically-stimulated luminescence (OSL) dates and meteoric 10Be
We have studied “bioturbation” (mixing by animals, plants and insects) of a soil from northeast Queensland using “Optical Dating”, a technique that measures how long ago individual grains of soil were last exposed to sunlight. We show for the first time how mixing rate and depth are related in a bioturbated soil, which is important because these both much affect soil fertility.
Authors: Johnson, MO, Mudd, SM, Pillans, B, Spooner, NA, Keith Fifield, L., Kirkby, MJ, Gloor, M
Work done in collaboration with ANU, University of Leeds, University of Edinburgh
Earth Surface Processes and Landforms 39 (9) 1188–1196 (2014)
Posted on July 16, 2014, in IPASnews, Paper Summaries and tagged bioturbation, Keith Fifield, northeast Queensland, plants and insects, Prof Nigel Spooner, soil fertility. Bookmark the permalink. Leave a comment.