The effects of vegetative cover in the erosion prevention of a road slope

Coelho, Arnaldo Teixeira; Galvão, Terezinha Cássia de Brito; Pereira, Aloisio Rodrigues

doi:10.1108/09566160110381968

Cited by 8 publications

(2 citation statements)

References 3 publications

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“…Another issue requiring attention is the changing runoff generation-convergence mechanism in highly managed watersheds [62]. This experiment found that the flood discharge peaks are delayed compared to the sediment discharge peaks under high-level management.…”

Section: Increasing Erosion and Changes In Runoff Generation-collection Mechanisms In Highly Managed Watersheds Under Extreme Rainstorm Cmentioning

confidence: 91%

Erosion Transportation Processes as Influenced by Gully Land Consolidation Projects in Highly Managed Small Watersheds in the Loess Hilly–Gully Region, China

Gao

et al. 2021

Water

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The Loess Hilly–Gully region (LHGR) is the most serious soil erosion area in the world. For the small watershed with high management in this area, the scientific problem that has been paid attention to in recent years is the impact of the land consolidation project on the erosion environment in the gully region. In this study, the 3D simulation method of vegetation, eroded sediment and pollutant transport was innovated based on the principles of erosion sediment dynamics and similarity theory, and the impacts of GLCP were analyzed on the erosion environment at different scales. The verification results show that the design method and the scale conversion relationship (geometric scale: λl = 100) were reasonable and could simulate the transport process on the complex underlying surface of a small watershed. Compared with untreated watersheds, a significant change was the current flood peak lagging behind the sediment peak. There were two important critical values of GLCP impact on the erosion environment. The erosion transport in HMSW had no change when the proportion was less than 0.85%, and increased obviously when it was greater than 3.3%. The above results have important theoretical and practical significance for watershed simulation and land-use management in HMSW.

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Section: Increasing Erosion and Changes In Runoff Generation-collection Mechanisms In Highly Managed Watersheds Under Extreme Rainstorm Cmentioning

confidence: 91%

Erosion Transportation Processes as Influenced by Gully Land Consolidation Projects in Highly Managed Small Watersheds in the Loess Hilly–Gully Region, China

Gao

et al. 2021

Water

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“…The cover density of cut slope was also identi ed as a signi cant factor in the deterioration of the road surface. This factor's impact on road erosion has been examined in previous research (Teixeira Coelho et al 2001;Seutloali et al 2015). Liu et al (2019) demonstrated in their study that vegetation on a cut slope reduces runoff and transported sediments due to the absence of direct raindrop impact and the presence of roots.…”

Section: Discussionmentioning

confidence: 95%

Using logistic regression and random forest techniques to predict the degradation of forest roads

Shabani

Ahmadi

Mostafa

et al. 2023

Preprint

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The destruction of forest roads has significant adverse impacts on forest accessibility, resulting in heightened maintenance and environmental expenses, as well as posing potential threats to human life. Enhancing the sustainable and secure accessibility to forest regions necessitates a more comprehensive knowledge of the deterioration of forest pathways across temporal and spatial dimensions. The objective of this study is to utilize destruction prediction models to identify pertinent variables related to the state of the Hyrcanian forest road network in Golestan province. Additionally, the study aims to determine the most significant explanatory variables. To achieve the research objective, a set of 50 points were established along forest roads at a uniform distance of 200 meters from each other. The response variable, which pertains to the visibility of the forest road infrastructure, was recorded in binary format. Additionally, the explanatory variables were documented along a strip transect with a width of 10 meters perpendicular to the road. The study employed two conventional logistic regression models and a novel random forest model to forecast the deterioration of forest roads. Three indicators consist of TWI, natural ground gradient and cover density of cut slope, can predict road damage, as demonstrated by the implementation of two models. The random forest model exhibited superior accuracy to logistic regression, as evidenced by its success rate of 0.73 and prediction rate of 0.68. The results indicate that machine learning models offer significant insights into predicting road conditions and ensuring access to the Hyrcanian forests.

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Straw Blankets Sewn With Recycled Plastic Threads for Erosion and Urban Sediments Control

Galvão

Pereira²,

Coelho³

et al. 2010

Geotech Geol Eng

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Soil erosion, transport and deposition of sediments represent invisible threats that along time can affect negatively the existing infrastructure of roads and dams, and the quality of air and water resources. In the last decades, a great number of researches were devoted to study erosion and sediments transportation processes. However, they addressed mostly areas of agriculture, water impoundments for dams, and land conservation. A lack of studies for erosion processes in urban areas is evident, in special those aiming to diminish the deposition of sediments originated from urban areas into the rivers and air, in special as airborne particulate. Traditionally, the costs associated in controlling erosion and sediments in urban areas are high and in some case, out of the range for most developing countries. Factors responsible for those high prices are the use of heavy equipments for soil grading and transportation, the use of costly building materials, and the need for employing more specialized personnel. In the case of gullies in urban areas, another concern is to ensure proper equipment access to the area for remediation operations. Hereby, it is presented a cost-effective method to recover an extensive gully erosion area of about 11,000 m 2 located in urban area. Estimated sediments released from this area to the water resources and air were estimated on about 66,000,000 tons. In this study area, bioengineering works were performed in 60 days, with hardly any sediment generated outside the work area resulting from bioengineering operations. A combination of bioengineering techniques were chosen for this study area, which was a mixture of rigid and biological products including biologs, silt fence, biodegradable straw blankets sewn with plastic threads derived from recycled PET bottles, among others. An efficient drainage system was implemented for preventing upland flow, sub-seepage and

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The effects of vegetative cover in the erosion prevention of a road slope

Cited by 8 publications

References 3 publications

Erosion Transportation Processes as Influenced by Gully Land Consolidation Projects in Highly Managed Small Watersheds in the Loess Hilly–Gully Region, China

Erosion Transportation Processes as Influenced by Gully Land Consolidation Projects in Highly Managed Small Watersheds in the Loess Hilly–Gully Region, China

Using logistic regression and random forest techniques to predict the degradation of forest roads

Straw Blankets Sewn With Recycled Plastic Threads for Erosion and Urban Sediments Control

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