The spatio-temporal reconstruction of spoil heap landslide movements using anatomical tree growth responses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F21%3A50017641" target="_blank" >RIV/62690094:18470/21:50017641 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0013795220318858" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0013795220318858</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.enggeo.2020.105988" target="_blank" >10.1016/j.enggeo.2020.105988</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The spatio-temporal reconstruction of spoil heap landslide movements using anatomical tree growth responses

Popis výsledku v původním jazyce

Landslide processes could be dangerous and occur not only under natural conditions but also on anthropogenic slopes of artificially accumulated spoil heaps. Establishing chronology of landslide activity is of crucial importance for landslide hazard assessment. Dendrogeomorphic methods are commonly used approaches for the reconstruction of past activity of landslides on natural slopes, but their application to the anthropogenic landslides is practically lacking, probably due to the dominance of the specific broad-leaved tree vegetation Betula pendula Roth on human-made slopes. To verify its use for the retrospective dating of anthropogenic landslide activity, the first part of this study was focused on a detailed analysis of the anatomical growth responses of B. pendula to landslide movements. Resulting verification of vessel lumen changes in the tension wood of B. pendula enabled reconstruction of the first tree-ring anatomy-based chronology of past landslide events with an unknown history. Reconstructed chronology together with geophysical ERT sounding, geomorphic mapping, grain size analysis and meteorological analysis enabled detailed multidisciplinary analysis of selected anthropogenic landslides. Two types of landslides were detected (deep rotated blocks and an earthflow), and the effect of the grain size of spoil heap material on their development was discussed. Meteorological data analysis provided evidence about the significant effect of extreme short-duration high-intensity precipitation (up to 70 mm per day) during summer months, preceding a distinct drought period with below average precipitation, on triggering all of the dated landslide events (1991, 1997, 2005, 2007, 2011). This study is pioneering with exclusive use of tree anatomical responses for the landslide dating. Moreover, it was first time it was applied to anthropogenic landslides. Thus, this study shows the potential of innovative dendrogeomorphic methods for landslide analysis.

Název v anglickém jazyce

The spatio-temporal reconstruction of spoil heap landslide movements using anatomical tree growth responses

Popis výsledku anglicky

Landslide processes could be dangerous and occur not only under natural conditions but also on anthropogenic slopes of artificially accumulated spoil heaps. Establishing chronology of landslide activity is of crucial importance for landslide hazard assessment. Dendrogeomorphic methods are commonly used approaches for the reconstruction of past activity of landslides on natural slopes, but their application to the anthropogenic landslides is practically lacking, probably due to the dominance of the specific broad-leaved tree vegetation Betula pendula Roth on human-made slopes. To verify its use for the retrospective dating of anthropogenic landslide activity, the first part of this study was focused on a detailed analysis of the anatomical growth responses of B. pendula to landslide movements. Resulting verification of vessel lumen changes in the tension wood of B. pendula enabled reconstruction of the first tree-ring anatomy-based chronology of past landslide events with an unknown history. Reconstructed chronology together with geophysical ERT sounding, geomorphic mapping, grain size analysis and meteorological analysis enabled detailed multidisciplinary analysis of selected anthropogenic landslides. Two types of landslides were detected (deep rotated blocks and an earthflow), and the effect of the grain size of spoil heap material on their development was discussed. Meteorological data analysis provided evidence about the significant effect of extreme short-duration high-intensity precipitation (up to 70 mm per day) during summer months, preceding a distinct drought period with below average precipitation, on triggering all of the dated landslide events (1991, 1997, 2005, 2007, 2011). This study is pioneering with exclusive use of tree anatomical responses for the landslide dating. Moreover, it was first time it was applied to anthropogenic landslides. Thus, this study shows the potential of innovative dendrogeomorphic methods for landslide analysis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/GA19-01866S" target="_blank" >GA19-01866S: Staré sesuvy: skutečně neaktivní?</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Engineering Geology

ISSN

0013-7952

e-ISSN

—

Svazek periodika

281

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

"Article Number: 105988"

Kód UT WoS článku

000615541900019

EID výsledku v databázi Scopus

2-s2.0-85099347140