Combination of triggers for landslide reactivation on structural relief of gently dipping Cretaceous rocks: Results from intra-annual tree-ring based dating

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F25%3A43926549" target="_blank" >RIV/62156489:43210/25:43926549 - isvavai.cz</a>

Alternative codes found

RIV/86652079:_____/25:00618949 RIV/61988987:17310/25:A26039TC RIV/00216224:14310/25:00140592 RIV/00020699:_____/25:N0000114

Result on the web

<a href="https://doi.org/10.1016/j.catena.2025.108763" target="_blank" >https://doi.org/10.1016/j.catena.2025.108763</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.catena.2025.108763" target="_blank" >10.1016/j.catena.2025.108763</a>

Result language

angličtina

Original language name

Combination of triggers for landslide reactivation on structural relief of gently dipping Cretaceous rocks: Results from intra-annual tree-ring based dating

Original language description

Establishing the link between landslide reactivations and their triggers is one of the key tasks for effective landslide risk assessment. However, to accurately determine the causes of landslides, it is necessary to obtain detailed chronological data on their past occurrences and analyze a larger number of landslides in the area to eliminate local influences. Thus, the combination of these conditions within this study provides a unique insight into the behaviour of landslides on structural relief of gently dipping Cretaceous rocks. Within the study region (eastern edge of the Bohemian Cretaceous Basin), 14 landslides were analyzed through chronological data from a 1324 tree-ring series of disturbed individuals of common spruce (Picea abies (L.) Karst.), in which 34 landslide reactivations were revealed. Moreover, using the intra-ring position of the reaction wood, it was possible to date these events with seasonal precision. These data subsequently fed into a detail-oriented trigger analysis. A temporally targeted (thanks to the results of seasonal dating) analysis of rainfall totals and soil moisture conditions at a depth of several meters in the landslide bodies revealed different combinations of these factors. These combinations influence the occurrence of rotational (block) landslides and flow-like (shallow) landslides in July and August-September. The differences can be attributed to specific characteristics of the substrate, which also fundamentally influence the nature of growth disturbances in the analysed trees. Thus, variable patterns of high precipitation represent the dominant trigger of the landslides studied, while snowmelt proved to be the direct trigger of only one landslide reactivation.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

40104 - Soil science

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

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

Name of the periodical

Catena

ISSN

0341-8162

e-ISSN

1872-6887

Volume of the periodical

250

Issue of the periodical within the volume

March

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

13

Pages from-to

108763

UT code for WoS article

001421580200001

EID of the result in the Scopus database

2-s2.0-85216100882