Erosão real e estimada através da RUSLE em estradas florestais, em relevo ondulado a fortemente ondulado

Corrêa, Carla Maria Camargo; Cruz, J. Ribeiro

doi:10.1590/s0100-67622010000400003

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…Spatio-temporal models result from the need to fill spatial and temporal voids arising from the impossibility (of surveying every single area directly) of working with direct field survey. It is an alternative based on evidence and structured by means of continuous variables and considered most important, being supported by data collected directly and indirectly, and complemented by different modes of verification in the field (COLMAN et al, 2018;CORRÊA;CRUZ, 2010;EZZAOUINI et al, 2020;HARMON et al, 2019;MITASOVA et al, 1996). Although these are predictive models, with eventual discrepancies in relation to the reality that can be observed in the field, when applied to large areas, they become significant because the spatial and temporal coverage implies in efficiency gains.…”

Section: Introductionmentioning

confidence: 99%

Spatial Variability of Estimates Sediment Generation and Connectivity in Uhe Contribution Watershed

Nunes

Romão

Sales

et al. 2022

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The knowledge of the spatial variability of the generation and transport of sediments allows the identification with considerable precision critical areas regarding the generation and flow of detrital materials in atersheds. This paper aims to relate the spatial variability of soil loss and sediment connectivity in a contribution basin of the Batalha Hydroelectric Power Plant reservoir in the municipality of Cristalina (GO). The methodology comprised the bivariate spatial correlation between production estimates (MUSLE) and the Connectivity Index (CI) applied at a slope scale in the basin's contribution area. The results indicate the configuration of four spatial patterns: low production and low connectivity index in most of the area, comprising the higher and flatter portions; low production and high connectivity index in the vicinity of springs and drainage channels; high production and low connectivity index in the higher, steeper and more distant portions; and high production and high connectivity, predominating in the steepest portions and closest to the channels or even in those portions that are more distant but are connected to the channel, in the latter situation via more intense surface runoff flow lines. In this sense, the importance of this methodology is highlighted in the identification of critical areas, which are priority areas for the implementation of mitigating measures of the impacts resulting from hydric erosive processes. Keywords: Water Erosion, Sediment Contribution, Critical Areas, Water Reservoirs.

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Section: Introductionmentioning

confidence: 99%

Spatial Variability of Estimates Sediment Generation and Connectivity in Uhe Contribution Watershed

Nunes

Romão

Sales

et al. 2022

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“…A partir deste momento o escoamento superficial passa a desprender partículas do solo, geralmente transportadas até os cursos d'água. Os impactos originados pelo estabelecimento deste processo incluem assoreamento, poluição e interferência na qualidade de vida aquática dos cursos d'água (Ziegler et al, 2000;2001;Foltz et al, 2008;Zhang et al, 2009;Cao et al, 2009;Corrêa & Cruz, 2010).…”

Section: Introductionunclassified

“…Grayson et al (1993) Nessas estradas os processos erosivos estão associados a fatores como intensidade e duração das chuvas, características do material da estrada, declividade, características construtivas e intensidade de tráfego, entre outras (Ramos-Scharrón & MacDonald, 2007;Fu et al, 2010;Oliveira et al, 2010;Corrêa & Cruz, 2010). Dos diversos fatores que influenciam na erosão em estradas merecem destaque as propriedades que refletem maior ou menor resistência dos solos aos agentes erosivos.…”

Section: Introductionunclassified

Erodibilidade e tensão crítica de cisalhamento no canal de drenagem de estrada rural não pavimentada

Enriquez¹,

Silva²,

Pruski³

et al. 2015

Rev. bras. eng. agríc. ambient.

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R E S U M OA erosão em estradas não pavimentadas associada ao escoamento superficial gera grande impacto ambiental, sendo a principal causa de inundação, contaminação da água e alteração da fauna aquatica, entre outros, tornando-se necessário desenvolver estratégias de prevenção e controle. Para isto, a obtenção de valores confiáveis dos índices de resistência do solo ao processo erosivo é premente; sentido em que este trabalho teve, como objetivo, determinar os índices de erodibilidade e a tensão crítica de cisalhamento em canal de drenagem construído em uma estrada não pavimentada implantada em um Latossolo Vermelho-Amarelo. O estudo foi realizado em uma estrada não pavimentada do município de Viçosa, MG, que apresentava problemas de erosao utilizando-se um simulador de escoamento para determinação direta no campo. Os dados de erodibilidade e tensão crítica de cisalhamento foram obtidos com base na técnica de identidade de modelos. O valor de erodibilidade determinado foi de 0,0044 g cm -2 min -1 Pa -1, ao qual foi associado um intervalo de confiança com 95% de probabilidade de 0,0035 a 0,0053 g cm -2 min -1 Pa -1. A tensão crítica de cisalhamento obtida foi de 7,61 Pa.Erodibility and critical shear stress in the drainage channel of a rural unpaved road A B S T R A C TThe erosion in unpaved roads associated with the runoff generates a great environmental impact, being the main cause of flooding, water contamination and alteration of aquatic fauna, among others. It is necessary to develop strategies for prevention and control. For this, obtaining reliable indices of soil resistance to erosion is required. In this context, the aim of this study was to determine the indices of erodibility and critical shear stress in the channel of an unpaved road implanted in a Red-Yellow Latosol. Study was conducted on an unpaved road in Viçosa-MG, Brazil, which presented problems of erosion, using a flow simulator for direct determination of field. Erodibility and critical shear stress data were obtained by applying model identity test.The erodibility value determined was 0.0044 g cm -2 min -1 Pa -1, and its associated confidence interval with 95% probability was 0.0035 to 0.0053 g cm -2 min -1 Pa -1. The critical shear stress determined was 7.61 Pa. Palavras-chave:erosão hídrica conservação de solo e água modelagem processo erosivo

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Microbiologically Induced Calcite Precipitation biocementation, green alternative for roads – is this the breakthrough? A critical review

Portugal

Fonyo

Machado

et al. 2020

Journal of Cleaner Production

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Erosão real e estimada através da RUSLE em estradas florestais, em relevo ondulado a fortemente ondulado

Cited by 5 publications

References 4 publications

Spatial Variability of Estimates Sediment Generation and Connectivity in Uhe Contribution Watershed

Spatial Variability of Estimates Sediment Generation and Connectivity in Uhe Contribution Watershed

Erodibilidade e tensão crítica de cisalhamento no canal de drenagem de estrada rural não pavimentada

Microbiologically Induced Calcite Precipitation biocementation, green alternative for roads – is this the breakthrough? A critical review

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