Published on Brock University (http://brocku.ca)
Dr. Daryl Dagesse (GEOG) recently received a grant from the Council for Research in the Social Sciences (CRISS) to study changes in soil systems that occur in natural freeze-thaw cycles. Dr. Dagesse states "Although it may appear frozen and inert during the winter months there is actually a great deal of activity within the top few centimetres of the soil surface. Winter time freezing air temperatures result in soil pore water being drawn to the surface where it may freeze into ice, but where it may also sublimate into water vapour. This results in the freeze drying of the soil in much the same way as food suffers freezer burn. This study will investigate the freeze drying process in order to understand the role this drying effect has on the erodibility of the soil surface during the Spring thaw." Inquiries about this research can be sent directly to Dr. Dagesse.