Application of growth rings and scars in exposed roots of Schizolobium parahyba as a tool for dating geomorphic processes in the State of São Paulo, Brazil

Bovi, Renata Cristina; Chartier, Marcelo Pablo; Domínguez-Castillo, Virginia; Chagas, Matheus Peres; Filho, Mário Tomazello; Cooper, Miguel

doi:10.1016/j.dendro.2018.04.002

Cited by 9 publications

(4 citation statements)

References 31 publications

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“…The dating of root exposure is then contrasted with the amount of eroded soil (i.e., the difference between current soil level and the upper level of the analysed root at the moment of exposure) so as to allow quantification of mean annual erosion rates (Ballesteros-Cánovas et al, 2013). This approach has been employed widely in different environments (Ballesteros-Cánovas et al, 2017;Bodoque et al, 2011Bodoque et al, , 2017Bovi et al, 2018;Lopez Saez et al, 2011;Šilhán, 2018) and has benefitted from methodological improvements (Bodoque et al, 2015;Corona et al, 2011) that have allowed to increase reliability in the estimation of erosion rates at decadal timescales (Ballesteros-Cánovas et al, 2015;Bodoque et al, 2011). So far, analysis of gully headcut retreat (GHR) has been limited to a few cases in Mediterranean and temperate environments (Ballesteros-Cánovas et al, 2017;Šilhán, 2018;Vandekerckhove et al, 2001), but has never been applied to volcanic settings.…”

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confidence: 99%

Reconstruction of gully erosion based on exposed tree roots in a recent landform of Paricutin Volcano, Mexico

Franco-Ramos

Ballesteros‐Cánovas

Terrazas

et al. 2021

Earth Surf Processes Landf

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Gullies in volcanic deposits are among the first signs of erosion that can be observed during or immediately after the volcanic activity and reflective of unstable conditions of newly formed deposits. Gully formation and erosion pulses may well continue to occur long after the initial landform was created, mostly as a result of torrential rainfall and/or land‐use changes. Yet, proper understanding of erosion dynamics and its relations with environmental drivers remains challenging as long‐term observations are, especially in volcanic terrain. Here we applied dendrogeomorphic approaches to (i) analyse both microscopic and macroscopic disturbances in tree roots exposed by gully erosion in a young volcanic landform of central Mexico and to (ii) quantify the evolution of erosion in the volcanic deposits of Paricutin Volcano. To this end we analysed 154 cross‐sections of 30 living, exposed roots of Pinus pseudoestrobus Lindl., of which 25 were used for anatomical and 129 for macroscopic analysis. Wood anatomical – or microscopic – disturbances were mostly in the form of strong growth reductions (~50%) in lumen area of earlywood tracheids, substantial increases in ring widths (mostly stemming from eccentric growth) and the increased formation of latewood cells. We observe major erosion pulses in 2010, 2012, 2015, 2016, 2017 and 2018, triggered primarily by torrential rainfall (with >100 mm 24 h−1 for the maximum intensity event: standard precipitation index values ≥ 2). Along the gully, the lower sector formed between 2009 and 2017, whereas the central sector exhibited important phases of exposure from 2012 to 2018. In the upper, most recent sector of the gully, erosion started only in 2017. Erosion rates in the lower and upper sectors are smaller with a channel widening rate of 6 to 16 cm yr−1. Around the main knickpoint found in the central part of the gully, retreat rates are up to 60 cm yr−1 and gully incision is 30 cm yr−1. The methods applied in this research are novel and can be applied to other volcanic environments with intense gully erosion, so as to provide baseline data for land‐use and environmental management plans.

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mentioning

confidence: 99%

Reconstruction of gully erosion based on exposed tree roots in a recent landform of Paricutin Volcano, Mexico

Franco-Ramos

Ballesteros‐Cánovas

Terrazas

et al. 2021

Earth Surf Processes Landf

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“…Vertical soil loss and the horizontal distance from neighboring roots were determined by measuring tape from the soil level portion to the upper portion of the root bark extracted in loco, according to the methodology proposed by Gärtner (2007), Bodoque et al (2011), andBovi et al (2018) (Figure 3). The sediment thickness deposited at the trunk base was determined by locating the tree's trunk base, which marks the soil surface level at the germination time, or base level of 0 (zero) cm, used as a reference in identifying the sediment height (Hupp & Bazemore 1993).…”

Section: Estimation Of Sediment Loss and Depositionmentioning

confidence: 99%

“…Much of the research on dendrogeomorphology focuses on temperate species and is mainly concentrated in alpine environments in Europe and North America, and in Argentine and Chilean Patagonia (Roig, Siegwolf & Boninsegna 2006;Stoffel & Bollschweiler 2008;Chartier et al 2016). Despite this, research in tropical regions has identified high dendrochronological and dendrogeomorphological potential in tree species (Momoli et al 2012;Venegas-González et al 2017;Bovi et al 2018;Bovi et al 2019;Domínguez-Castillo et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Dendrogeomorphology in Evaluating Erosive Processes in an Urban Conservation Unit

Nicolau

Faria

Momoli

et al. 2023

Anu. Inst. Geociênc.

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Water erosion is a worldwide problem that has been depleting soils mainly in tropical regions, due to the greater volume of precipitated water. In this sense, recent prediction methods in tropical regions such as dendrogeomorphology are necessary and important to identify and date the influence and correlation between erosion processes and vegetation. This study aimed to understand and scale the erosive processes, through the annual historical recognition of the rate of soil loss and sedimentation, applying the concepts of dendrogeomorphology in the evaluation of the stem and roots of trees of the species of Anadenanthera macrocarpa and Schefflera morototoni, in a conservation unit in the Brazilian Cerrado. Trees were selected in the following soil level conditions: (i) having root exposure, (ii) no exposure (buried), and (iii) no change in soil level (control). Cross-dating was performed using the COFECHA software program, and the information applied in dating scars and abnormal radial growth periods were observed in exposed roots and associated with the beginning of erosion processes. The results indicated that the occurrence of the erosive processes ascertained by anatomical changes in the exposed roots and a most common erosive rains date from 2006, 2008, 2009, 2010, 2012, 2013, 2016 and 2017. While changes in the trunk growth ring width start from 1992, with similar years between the two species of 2013 and 2017. The highest soil accumulation rates were 18.6 mm/year, vertical losses were 500 mm per year and horizontal losses were 665 mm. Finally, there is a positive correlation between the number of scars and an abrupt increase in the growth rings of the exposed roots with the number of erosive rains.

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“…O estudo dos anéis de crescimento consolidou-se como uma ciência pelas pesquisas realizadas por Andrew E. Douglass entre séries temporais e variáveis climáticas. Estes estudos permitiram obterpela análise dos anéis de crescimento -importantes informações do crescimento e desenvolvimento de árvores e arbustos e sua relacionação com o ecossistema, aos fatores climáticos, macro e micro ambientais (PUMIJUMNONG, 2013;DANIELLI, 2017;BOVI et al, 2018).…”

Section: Dendrocronologia E Microdensitometria De Raios Xunclassified

Aplicação dos anéis de crescimento - dendrocronologia - na reconstrução do crescimento do tronco de árvores de >i<Tectona grandis>/i< L.f., teca, de plantações dos estados do Mato Grosso e de São Paulo

Figueiredo¹

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Primeiramente gostaria de agradecer a Deus por todas as conquistas até hoje; Agradecer imensamente a meus pais, Adarli e Filomeno, pelo apoio, carinho, suporte e o desejo de ver meu sucesso e crescimento profissional;A Isabela Camargo, minha namorada e companheira, por toda ajuda, paciência, carinho e amor em todas as partes da vida; Ao meu orientador, Mario Tommasiello Filho, pela confiança, orientação e ensinamentos; Ao meu amigo Aparecido Candido Siqueira, por toda ajuda em todas as gauchadas que inventamos.Agradeço aos amigos e colegas de laboratório e de pós-graduação, que me auxiliaram em todas as etapas e, também, pela amizade que continua:

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Application of growth rings and scars in exposed roots of Schizolobium parahyba as a tool for dating geomorphic processes in the State of São Paulo, Brazil

Cited by 9 publications

References 31 publications

Reconstruction of gully erosion based on exposed tree roots in a recent landform of Paricutin Volcano, Mexico

Reconstruction of gully erosion based on exposed tree roots in a recent landform of Paricutin Volcano, Mexico

Dendrogeomorphology in Evaluating Erosive Processes in an Urban Conservation Unit

Aplicação dos anéis de crescimento - dendrocronologia - na reconstrução do crescimento do tronco de árvores de >i<Tectona grandis>/i< L.f., teca, de plantações dos estados do Mato Grosso e de São Paulo

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