The sensitivity of dendrogeomorphic approaches to assessing landslide movements

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F19%3AA21027GE" target="_blank" >RIV/61988987:17310/19:A21027GE - isvavai.cz</a>

Alternative codes found

RIV/67985891:_____/19:00511851 RIV/62690094:18470/19:50016037

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0169555X19303587?casa_token=WNxITPo8r5gAAAAA:LJH2gH7PxoNsLRu7b_CL4hUmfNicIdD5S6jKFLElMO5N5VAgYh1N5whUb6gnoAfmIstur6IK9P8#" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169555X19303587?casa_token=WNxITPo8r5gAAAAA:LJH2gH7PxoNsLRu7b_CL4hUmfNicIdD5S6jKFLElMO5N5VAgYh1N5whUb6gnoAfmIstur6IK9P8#</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geomorph.2019.106869" target="_blank" >10.1016/j.geomorph.2019.106869</a>

Result language

angličtina

Original language name

The sensitivity of dendrogeomorphic approaches to assessing landslide movements

Original language description

An understanding of past landslide behaviour is crucial for the estimation of future landslide activity. In this respect, methods of absolute dating are frequently used for landslide history assessment. Dendrogeomorphic (tree ring-based) approaches are standard methods for the spatio-temporal reconstruction of landslide activity with annual to even sub-annual resolution and timespans of several centuries (depending on the tree age). Nevertheless, the verification of the effectiveness, sensitivity and precision of these dendrogeomorphic approaches has not been addressed in more detail despite their wide spectrum of limitations. This study makes an assessment of tree ring-based chronologies of landslides based on a comparison with the independent data of past landslide activity from instrumental monitoring. The chronology of past landslide events was created from 528 tree ring series from 132 individuals of Norway spruce (Picea abies (L.) Karst.) growing on a monitored landslide in the Outer Western Carpathians (the Ondřejník Mt.) and was expressed as the yearly variation in the standard event-response index. The landslide was monitored at two sites via technical levelling (since 2007) and an automated wire extensometer (since 2014). The obtained results show a high sensitivity of reaction wood formation to movements on the order of several mm (e.g., the abrupt acceleration of movements in February 2017, as recorded by the extensometer). Moreover, a one-year delay in the growth response to movement occurring in the middle part of the growing season of the previous year was detected. This fact fully supports the introduction of the dendrological year to dendrogeomorphic research.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10508 - Physical geography

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

GEOMORPHOLOGY

ISSN

0169-555X

e-ISSN

—

Volume of the periodical

347

Issue of the periodical within the volume

December

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

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UT code for WoS article

000501658300001

EID of the result in the Scopus database

2-s2.0-85074021120