Rolling stones and tree rings: A state of research on dendrogeomorphic reconstructions of rockfall

Trappmann, Daniel; Corona, Christophe; Stoffel, Markus (2013). Rolling stones and tree rings: A state of research on dendrogeomorphic reconstructions of rockfall. Progress in physical geography, 37(5), pp. 701-716. Sage 10.1177/0309133313506451

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This progress report focuses on the contribution of tree-ring series to rockfall research and on recent development and challenges in the field. Dendrogeomorphic techniques have been used extensively since the early 2000s and several approaches have been developed to extract rockfall signals from tree-ring records of conifer trees. The reconstruction of rockfall chronologies has been hampered in the past by sample sizes that decrease as one goes back in time, as well as by a paucity of studies that include broadleaved tree species, which are in fact quite common in rockfall-prone environments. In this report, we propose a new approach considering impact probability and quantification of uncertainty in the reconstruction of rockfall time series as well as a quantitative estimate of presumably missed events. In addition, we outline new approaches and future perspectives for the inclusion of woody vegetation in hazard assessment procedures, and end with future thematic perspectives.

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