Soil Properties on Ski-Runs
Pp. 45-64 (20)
Michele Freppaz, Gianluca Filippa, Giuseppe Corti, Stefania Cocco, Mark W. Williams and Ermanno Zanini
Much of the surface area in mountain regions has been converted to
recreational activities in recent decades due to the increasing demand of tourists for
winter sports. In general, ski-run construction and management have a great influence
on the chemical and physical properties of underlying soils. To create ski-runs the
natural landform is often changed to level the surface, thus exposing unweathered
parent material or deep soil horizons. Thus the original soil thickness can be reduced,
often resulting in a “turbated” topsoil. The result is that soils in ski-runs have an almost
complete lack of structure, with subsequent problems of soil compaction and reduction
of water and air permeability. Erosion on ski-runs is thus enhanced. One control that is
often pursued is artificial seeding. However, depletion of soil organic matter, reduction
in soil aggregate stability, and nutrient imbalance may affect plant development. In skirun
restoration the improvement of soil organic matter and nutrient status is one of the
most crucial tasks. A greater understanding of soil physico-chemical characteristics,
plant colonisation and soil microbial activity after ski-run construction is necessary to
enhance conservation and restoration of these disturbed pedoenvironments.
Soil formation, artificial snow, erosion, soil compaction, soil nutrients,
soil structure, pedogenesis, soil classification, winter sports, cold temperature, roots,
anthropogenic soils, ski-run construction, ski-run restoration, soil/snow interaction,
soil microbial biomass, best practices, land management.
Università degli Studi di Torino, DIVAPRA-Chimica Agraria e Pedologia. 44, Via Leonardo da Vinci, 10095, Grugliasco (TO), Italy.