Application of eccentric growth of trees as a tool for landslide analyses: The example of Picea abies Karst. in the Carpathian and Sudeten Mountains (Central Europe)

Wistuba, Małgorzata; Malik, Ireneusz; Gärtner, Holger; Kojs, Paweł; Owczarek, Piotr

doi:10.1016/j.catena.2013.06.027

Cited by 90 publications

(84 citation statements)

References 30 publications

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“…for those showing index values above the threshold value. Detailed assumptions of the method and examples of its application are presented by Malik and Wistuba (2012) and Wistuba et al (2013). An example of transformation of the raw tree-ring widths into an eccentricity index and its yearly variation index, with an example of landslide movement identification, are shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…In this approach, changes in wood anatomy of trees growing on landslide-affected slopes are analyzed and interpreted in terms of external disturbance induced by slope instability (e.g. Shroder, 1980;Lang et al, 1999;Braam et al, 1987;Moya, 1999, 2010;Fantucci and Sorriso-Valvo, 1999;Stefanini, 2004;Migoń et al, 2010;Pánek et al, 2011;Lopez-Saez et al, 2012a and2012b;Wistuba et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Since the tree stands usually cover large areas results even for whole mountain massifs and ranges can be obtained. Eccentricity indicex of Norway spruce growth was developed to date landslide activity through the comparison with reference trees growing on neighbouring landslide-free slopes (Wistuba et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Activity of Slow-Moving Landslides Recorded in Eccentric Tree Rings of Norway Spruce Trees (<i>Picea Abies</i> Karst.) — An Example from the Kamienne MTS. (Sudetes MTS., Central Europe)

et al. 2016

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Abstract:We found ubiquitous evidence of ongoing slope instability by analysing the variability of tree-ring eccentricity index in trees growing on three apparently relict landslide slopes in the Sudetes (Poland, Central Europe). Slow movement of these landslide bodies occurs in the present-day conditions and is recorded almost every year, although with variable intensity. Correlation of dendrochronological record with the rainfall record from a nearby station in Mieroszów for the 1977-2007 period is very poor for two deep-seated rotational slides at Mt Suchawa and Mt Turzyna but considerably better for a shallow flowslide at Mt Garbatka. While this may reflect higher permeability of heavily jointed rocks involved in deep-seated sliding this could be linked with imperfections in the rainfall record. Dendrochronology proved capable of detecting minor displacements within landslides which otherwise show no geomorphic evidence of recent activity. Therefore, claims for the entirely relict nature of the landslides are not substantiated.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Activity of Slow-Moving Landslides Recorded in Eccentric Tree Rings of Norway Spruce Trees (<i>Picea Abies</i> Karst.) — An Example from the Kamienne MTS. (Sudetes MTS., Central Europe)

et al. 2016

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“…Além disso, demonstrou-se outra vantagem da excentricidade, a sua independência a partir da idade e tamanho relativo da árvore (MÄKINEN, 1998). Por conseguinte, a excentricidade pode ser mais sensível e, por isso, um indicador mais exato para datações geomorfológicas do que a ocorrência de madeira de compressão (WISTUBA et al, 2013).…”

Section: Excentricidadeunclassified

“…O índice mais recente permite distinguir com clareza a direção de excentricidade utilizando o raio do caule que acompanha a declividade e o raio oposto à declividade (WISTUBA et al, 2013(WISTUBA et al, , 2015. Estes estudos têm trabalhado com a excentricidade do caule, porém são escassos os estudos que analisam de forma quantitativa a excentricidade da raiz.…”

Section: Excentricidadeunclassified

Aplicação da dendrogeomorfologia na caracterização e datação de processos erosivos em voçorocas na região de Piracicaba, SP

Castillo¹

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Coupling between landslides and eroding stream channels reconstructed from spruce tree rings (examples from the Carpathians and Sudetes – Central Europe)

Wistuba

Malik

Wójcicki

et al. 2014

Earth Surf Processes Landf

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The analysis of the positive feedback between landslides and erosion requires determination of the precise temporal and spatial relations between events of colluvium delivery and fluvial erosion. In our study we use decennial datasets on the occurrence of landsliding and erosion achieved through dendrochronological methods. Four sites covering areas of landslide slopes and adjacent valley floors with stream channels were studied. Landsliding on slopes was dated from the tree-ring eccentricity developed in stems tilted due to bedrock instability. Erosion in channels was dated using the wood anatomy of roots exposed by erosion of the soil cover. Analysis of the temporal relations between dated landsliding, erosion and precipitation record has revealed that two types of repeating sequences can be observed: (1) rainfall → landsliding → erosion; (2) rainfall → erosion → landsliding. These sequences are an indication of the occurrence of slope-channel positive feedback in the sites studied. In the first type, landsliding triggered by rainfall delivers colluvia into the valley floor and causes its narrowing, which in turn causes increased erosion. In the second type erosion triggered by rainfall disturbs the slope equilibrium and causes landsliding. Landsliding and erosion, once triggered by precipitation, can occur alternately in years with average precipitation and reinforce one another. Bidirectional coupling between landsliding and channel erosion was shown notably through the effects of channel shifting and forced sinuosity and by increased erosion of the slopes opposite the active landslides. Observations also suggest that the repetition of sequences described over longer periods of time can lead to a general widening of the valley floor at the expense of slopes and to a gradual change of the valley crossprofile from narrow, V-shaped into a wide flat-bottomed. Thus landsliding-erosion coupling/positive feedback was recognized as an important factor shaping hillslope-valley topography of the mid-mountain areas studied.

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Application of eccentric growth of trees as a tool for landslide analyses: The example of Picea abies Karst. in the Carpathian and Sudeten Mountains (Central Europe)

Cited by 90 publications

References 30 publications

Activity of Slow-Moving Landslides Recorded in Eccentric Tree Rings of Norway Spruce Trees (<i>Picea Abies</i> Karst.) — An Example from the Kamienne MTS. (Sudetes MTS., Central Europe)

Activity of Slow-Moving Landslides Recorded in Eccentric Tree Rings of Norway Spruce Trees (<i>Picea Abies</i> Karst.) — An Example from the Kamienne MTS. (Sudetes MTS., Central Europe)

Aplicação da dendrogeomorfologia na caracterização e datação de processos erosivos em voçorocas na região de Piracicaba, SP

Coupling between landslides and eroding stream channels reconstructed from spruce tree rings (examples from the Carpathians and Sudetes – Central Europe)

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