An evaluation of erosion in cuesta relief: São Paulo State, Brazil

Stefanuto, Estêvão Botura; Lupinacci, Cenira Maria; Carvalho, Filipe; Francos, Marcos; Úbeda, Xavier

doi:10.1016/j.geomorph.2021.108049

Cited by 6 publications

(3 citation statements)

References 24 publications

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“…The northern slopes of the Borgustan Range are gentle, and its southern slopes are rather steep, with a well-developed scarp. By its shape and origin, this is a typical cuesta [49][50][51], which formed thanks to the low-angle, monocline distortion of Lower Cretaceous sedimentary rocks differently prone to erosion. The shape of the Ring Mountain is irregular, with slopes differing in steepness (Figure 6b,d).…”

Section: Ring Mountainmentioning

confidence: 99%

Geoheritage Value of Three Localities from Kislovodsk in the Southern Central Ciscaucasus: A Resource of Large Resort Area

Yashalova,

Ruban

2024

Geosciences

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Many geographical domains possess notable geological and geomorphological features, which are yet to be characterized comprehensively in terms of geoheritage. The present study focuses on the Kislovodsk area, which is situated in the southern part of the Central Ciscaucasus (post-Paleozoic platform), where the latter joins to the Greater Caucasus (late Cenozoic orogen). Three geosites are reported from there, and their qualitative description and semi-quantitative, score-based assessment are offered. The Honey Waterfalls represent an example of river erosion affecting Carboniferous granitoids with uppermost Jurassic weathering horizon and overlain by Lower Cretaceous carbonates. The Ring Mountain is a natural arch formed as result of wind erosion. The Little Saddle is a viewpoint offering a spectacular, panoramic view toward the Elbrus Mountain that is the highest peak of Russia and Europe and an impressive dormant stratovolcano. The Honey Waterfalls and the Ring Mountain are ranked nationally (the latter receives the highest total scores), and the Little Saddle is ranked regionally. These geosites are diverse in several aspects, and, particularly, different geoheritage types and forms are established. The Kislovodsk area bearing the reported geoheritage objects is a part of the Mineralnye Vody resort area, which is large and important for the national tourism and recreation industry. The related opportunities and challenges for geoheritage resource management have to be considered.

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Section: Ring Mountainmentioning

confidence: 99%

Geoheritage Value of Three Localities from Kislovodsk in the Southern Central Ciscaucasus: A Resource of Large Resort Area

Yashalova,

Ruban

2024

Geosciences

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“…O relevo de cuestas se destaca pelas suas características morfométricas naturais, pois representa um setor de grande declividade, que potencializa a ocorrência de processos erosivos ao conferir energia ao sistema (Stefanuto et al, 2022;Pinton, 2016). Ainda, com o advento do desmatamento e do uso da terra de forma inadequada em áreas de cuesta, os processos erosivos se tornam ainda mais intensos e podem assumir maiores magnitudes (Kertzman et al, 1995).…”

Section: Issn:1984-2295unclassified

A Erosão Linear e Sua Relação com a Morfometria do Relevo na Alta Bacia do Rio Capivara – Botucatu (SP)

Bonzanini

Lupinacci

Stefanuto

2022

Rev. Bras. Geog. Fis.

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A erosão dos solos é um problema frequentemente relatado em todo o globo, o qual compromete a utilização do recurso pedológico, essencial para a reprodução da atividade humana. Para as áreas declivosas, como o caso das Cuestas Basálticas do Estado de São Paulo, este problema pode se tornar ainda maior a partir das características naturais do terreno, que podem funcionar como catalizadoras dos processos erosivos. A partir disto, o objetivo deste artigo é avaliar a interação das feições erosivas lineares com a morfometria do relevo em área de ocorrência de relevo cuestiforme. Para isso, foram elaboradas cartas de declividade, de dissecação vertical, de dissecação horizontal, de energia do relevo e geomorfológica. Foi avaliada a distribuição espacial das feições erosivas lineares, mapeadas na carta geomorfológica, sobre cada classe, de cada carta morfométrica. Assim, constatou-se que na área de estudo, as feições erosivas são condicionadas pela presença do relevo cuestiforme, que fornece energia a ação do escoamento de superfície a partir de suas áreas de front, com os processos erosivos se concentrando em setores de média e de baixa vertente. Por fim, os resultados obtidos auxiliam na compreensão da dinâmica erosivas em áreas de relevo cuestiforme, a partir das características de morfometria do relevo, fornecendo subsídios ao uso adequado da terra e a estudos futuros nesta unidade geomorfológica.Palavras-chave: Erosão. Morfometria do relevo. Relevo de cuestas. Linear erosion and its relationship with reliefmorphometry in the Upper Capivara River Catchment – Botucatu (SP) – Brazil A B S T R A C TSoil erosion is a problem frequently reported all over the globe, which compromises the use of the soil resource, essential for the reproduction of human activity. For sloping areas, as is the case of the basaltic cuestas of the São Paulo State, this problem can become even greater from the natural characteristics of the area, which can work as catalysts of the erosive processes. From this, the objective of this paper is to evaluate the interaction of linear erosive features with the morphometry of the relief in an area where a cuesta relief. To this end, slope, vertical dissection, horizontal dissection, relief energy and geomorphologic maps were elaborated. The spatial distribution of linear erosive features, mapped in the geomorphologic map, was evaluated on each class of each morphometric map. In the study area, the erosive features are conditioned by the presence of the cuesta relief, which provides energy to the action of surface runoff from its front areas, with erosive processes concentrated in sectors of medium and low slope. Finally, the results help in the understanding of the erosive dynamics in areas of cuesta relief, based on the morphometric characteristics of the relief, providing subsidies for the appropriate use of land and future studies in these locations.Keywords: Erosion. Reliefmorphometry. Cuestas relief.

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“…The main erosive processes that occur in mountain areas correspond to uvial and gravitational processes, which occur with greater intensity on steeper slopes, where vegetation cover is scarce and soils are susceptible to erosion by high-intensity precipitation (Nadal-Romero et al 2013). Agricultural terraces, in geographical contexts such as those of northern Chile, commonly suffer collapse as a result of erosional processes triggered by surface and subsurface runoff (Arnáez et al 2015;Stefanuto et al 2022). In areas of extreme aridity, unusual rainfall causes sudden and ephemeral increases in river and stream ows (Astaburuaga 2004).…”

Section: Introductionmentioning

confidence: 99%

Recording Historical Variations in Agricultural Areas Caused by Landslides and River Floods between 1977 and 2012 through Participatory Mapping in the Foothills of the Atacama Desert, Chile

González-Pacheco

Francos

Corvacho-Ganahin

2023

Environmental Management

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In arid areas, rural communities can be affected by erosive phenomena caused by intense rainfall. By involving such communities in participatory mapping over the last few decades, our ability to analyse the effects of these phenomena has been enhanced. The aim of this study was to evaluate participatory mapping as a tool for spatially analysing agricultural variations caused by erosive phenomena, using local people to identify chronologies of physical events so we could analyse their effects on agriculture. The study was conducted in Laonzana, Tarapacá Valley, in northern Chile. We selected the participants for the participatory mapping using speci c criteria, and carried out eld activities in different phases, which allowed the identi cation, georeferencing and registration (through participatory mapping) of the information collected in the eld and from the collective memories of the participants. Three periods were studied: 1) "before 1977" with 26 sites and covering 234,273 m 2 ; 2) "between 1977 and 2012" with 6 sites and an area of 92,941 m 2 ; and 3) "after 2012' with three sites, covering 29,852 m 2 . This provided evidence for a decrease in the number of productive sites, these being limited to the vicinity of the village. The participatory mapping technique has become a useful tool in desert and mountainous areas with low population densities for recovering experiential information from communities. This participation contributes to the provision of examples for researchers, communities and government agencies to use in arguing for the need for cartographic information.

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An evaluation of erosion in cuesta relief: São Paulo State, Brazil

Cited by 6 publications

References 24 publications

Geoheritage Value of Three Localities from Kislovodsk in the Southern Central Ciscaucasus: A Resource of Large Resort Area

Geoheritage Value of Three Localities from Kislovodsk in the Southern Central Ciscaucasus: A Resource of Large Resort Area

A Erosão Linear e Sua Relação com a Morfometria do Relevo na Alta Bacia do Rio Capivara – Botucatu (SP)

Recording Historical Variations in Agricultural Areas Caused by Landslides and River Floods between 1977 and 2012 through Participatory Mapping in the Foothills of the Atacama Desert, Chile

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