Padrões da Regeneração Natural na Região de Mar de Morros, Pinheiral-RJ

Santos, Gilsonley Lopes dos; Pereira, Marcos Gervásio; Delgado, Rafael Coll; Moraes, Luiz Fernando Duarte de

doi:10.1590/2179-8087.008115

Cited by 13 publications

(12 citation statements)

References 12 publications

(11 reference statements)

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“…The predominant soils in the Cachimbal Creek sub-basin are on the hillside, Ultisol (Argissolos Vermelho-Amarelos) and Inceptisol (Cambissolo Háplico), and summit and backslope of the hillside, Oxisol (Latossolos Vermelho-Amarelos) (Santos et al, 2017). According to Santos et al (2016), the sub-basin's altitude varies from 360 m at the mouth of the Cachimbal Stream to 720 m in the Arrozal mountain range.…”

Section: Methodsmentioning

confidence: 99%

“…Inadequate agricultural practices can damage the physical and chemical attributes of soil, affect water dynamics, and have various other consequences. According to Santos et al (2017), improper management can lead to soil sealing, which increases surface runoff and, consequently, mass runoff.…”

Section: Introductionmentioning

confidence: 99%

“…Gullies, which are defined as a result of an erosive process that removes soil mass and nutrients in an advanced stage, are found throughout the Cachimbal River sub-basin, that comprises a large part of the territorial extension of the municipality of Pinheiral, in the state of Rio de Janeiro -Brazil, which is the area of study. According to studies carried out in the area (Menezes et al, 2010;Santos et al, 2017), the occurrence of gullies may be associated with different forms of soil usage, occupation, and management.…”

Section: Introductionmentioning

confidence: 99%

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Physical and chemical attributes of soil on gully erosion in the Atlantic forest biome

et al. 2020

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Soil is a fundamental natural resource for subsistence and development of humanity, exploited mainly for agriculture. Agricultural practices, though, are improperly performed, compromising edaphic conditions and favoring erosive processes, which mainly culminate in the loss of soil and nutrients. Water erosion represents the main form of soil degradation, given that the impact of raindrops on the soil results in the detachment of particles, a process favored by factors such as climate, relief, soil vegetation and use and occupation. The objective of the study was to classify four gullies based on their evolutionary turns and to judge the physical-chemical classifications of the soil at the internal and external faces of the gullies. The morphology of the gullies was classified by aerial images generated by drones. The gullies were mapped using Google Earth images from 2016. The qualitative assessment was performed using the digital field-elevation curvature (MDESC) model with field validation. Deformed samples were collected at depths of 0-10 and 10-20 cm, while non-deformed samples were collected at depths of 0.0-0.10 cm to evaluate their chemical and physical attributes. A nonparametric 5% Kruskal-Wallis statistical analysis was performed on the resulting data. The chemical and physical attributes of the soil differed according to the evolutionary stage of the surfaces (internal and external) at depths of 0 to 10 cm, while the faces showed differences in depth of 10 to 20 cm.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Physical and chemical attributes of soil on gully erosion in the Atlantic forest biome

et al. 2020

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“…Deposition, accumulation and decomposition of the litter-forming material occurs in a differentiated way, due to the many specific topographic characteristics and soil classes that lead to the formation of microenvironments in the landscape (SANTOS et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…According to Santos et al (2017), environments with diverse topographic characteristics influence the biotic and abiotic attributes of a given ecosystem. The interaction between several factors such as constituent species, climate, soils, disturbances occurring in the area, successional aspects of the forest result in vegetation structure and can change the depositional dynamics of the litter (SCORIZA; PIÑA-RODRIGUES, 2014).…”

Section: Introductionmentioning

confidence: 99%

Litter Contribution on Different Geomorphological Conditions in the Atlantic Forest – State of Rio De Janeiro, Brazil

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Santos

Pereira

et al. 2019

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The deposition of leaf litter on the forest floor is influenced by biotic and abiotic factors where forest fragments are inserted, which is a major source of nutrients to the soil. The objective of this study was to evaluate the influence of the change in relief conditions (landform) in leaf litter contribution and nutrient content in a Submontane Seasonal Semi-deciduous Forest in Pinheiral (state of Rio de Janeiro, Brazil). It was selected two adjacent landforms with convex and concave relief type and they divided into small sites (SS), obeying the variation of the slope and topographic gradient. Five conic collectors with an area of 0.2834 m² were installed in each SS, totaling 30 collectors. The collections of leaf litter were carried out every 30 days during a year. The material retained in the traps was separated as the fractions; leaves, twigs, reproductive and other material to assess the proportion of each fraction in the leaf litter production and nutrient content of the fraction leaves. The contribution and nutrient content of litter are influenced by the type of landform and seasons of the year. The highest contribution was observed in the dry season, in the lower and middle SS of the landforms, and the highest nutrient levels occurred in the convex landform during the rainy season.

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Spatial Dynamics of Semideciduous Seasonal Forests: Case Study in the Turvo Sujo River Basin in Southeastern Brazil, Between the Years of 2003 and 2016

et al. 2018

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The Agência Nacional das Águas (ANA) states that Brazil faces a water shortage problem since 2012, and it is linked with the conservation of the country’s watersheds directly. It is possible to track the landscape changes and its conservation state through satellite images. This study aims to analyze the spatial dynamics of Semideciduous Seasonal Forest (FES) fragments in the basin of the river Turvo Sujo, in Minas Gerais, southeastern Brazil, between the years of 2013 and 2016, and how this dynamic relates to the terrain aspect. In order to accomplish that, we used images of the Landsat series with geometric, radiometric and atmospheric corrections. For processing those images, samples of five categories of land cover and use were collected from RGB compositions. Maximum Likelihood was used to classify the images, and the overall accuracy, the confusion matrix, and the User’s and Producer’s accuracies per category were later obtained during the validation process. In 2003 the SSE occupied an area of 6.956 hectares, with highly fragmented disposition. Between 2003 and 2016 the native forest increased 42% (about 3.053 hectares of regrowth within 13 years), resulting in a total of 10.009 hectares in 2016. The fragments of Semideciduous Seasonal Forest are more frequently present in the South, Southeast, Southwest and West aspects in both years, 2003 and 2016. However, the forest regrowth a long those years did not follow that evidence, with the regrowth occurring equally in all the exposition faces, except in the plain terrains, that represents only 0,03% of the studied watershed. That is an evidence relevant and positive, which must be monitored, once it is necessary to conserve all terrain aspects for water availability and quality maintenance within watersheds.

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Padrões da Regeneração Natural na Região de Mar de Morros, Pinheiral-RJ

Cited by 13 publications

References 12 publications

Physical and chemical attributes of soil on gully erosion in the Atlantic forest biome

Physical and chemical attributes of soil on gully erosion in the Atlantic forest biome

Litter Contribution on Different Geomorphological Conditions in the Atlantic Forest – State of Rio De Janeiro, Brazil

Spatial Dynamics of Semideciduous Seasonal Forests: Case Study in the Turvo Sujo River Basin in Southeastern Brazil, Between the Years of 2003 and 2016

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