Accelerated erosion in a watershed in the southeastern region of Brazil

Dorici, Mariana; Costa, Carlos Wilmer; Moraes, Mayra Cristina Prado de; Piga, Fabíola Geovanna; Lorandi, Reinaldo; Lollo, José Augusto de; Moschini, Luiz Eduardo

doi:10.1007/s12665-016-6102-7

Cited by 14 publications

(6 citation statements)

References 39 publications

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“…According to [22] [30], the most influential parameter in the erosion's calculation rate is the slope with an influence level of 72.9%, while the land cover processing parameter only contributes 5%, the smallest effect on the erodibility parameter is 0.15%. According to some research, erosion-prone land use and land-cover encourage uneven erosion rates because of the rapid shift in erosion variables [31][32][33]. One of the most crucial truths to remember is that a body of water cannot be considered in the absence of erosion causes or soil cover, as a guide for land use and land cover to prevent erosion [34,35].…”

Section: Discussionmentioning

confidence: 99%

Analysis of soil erosion and its relationships with land use/cover in Tabunio watershed

Nurlina

Kadir

Ahmad

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Erosion is detrimental to the health of the watershed exclusively in the upstream area of the watershed because it causes a lack of soil fertility because of being carried away by water, while in the downstream, it will reduce the river’s capacity due to sediment deposits. This research aims to determine the annual rate of soil erosion and its relation to land cover using the Revised Universal Soil Loss Equation (RUSLE). Factors needed by RUSLE in estimating erosion include rain erosivity (R), Soil erodibility (K) length and slope (LS), land cover processing factor (CP), and the value of 0,61 as correction factors. We classify the result shows that the erosion rate in Tabunio watershed into five erosion classes, ranging from very light to very heavy classes. The erosion rate in the Tabunio watershed ranged from 0,000158 tons ha-1 year-1 to 9.453,6 tons ha-1 year-1. Very mild erosion occurred in 59.06% of the total area, mild erosion covered 18,80%, while moderate erosion occurred in an area 7,78%, the level of heavy erosion covers an area of 8,15%, while very heavy erosion occurred in an area of 6,21% of the total area of the Tabunio watershed. Forest dominates the erosion rate in the very mild class, the light class until the hefty class is dominated by plantation followed by settlement and mine. From this research, it is known that land cover and land use do not significantly affect the rate of erosion.

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Section: Discussionmentioning

confidence: 99%

Analysis of soil erosion and its relationships with land use/cover in Tabunio watershed

Nurlina

Kadir

Ahmad

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Morphometry based soil resource depletion studies are lacking according to the previous literature reviewed regarding sediment production rate of the terrains. (Altaf et al 2014;Khadse et al 2015;Dorici et al 2016;Tadesse et al 2017) Therefore, same has been given significant emphasis in this study.…”

Section: Relief Parametersmentioning

confidence: 99%

Identification of erosion-prone areas using modified morphometric prioritization method and sediment production rate: a remote sensing and GIS approach

Kadam

Jaweed

Kale

et al. 2019

Geomatics, Natural Hazards and Risk

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Watersheds from semiarid zones are sensitive to land degradation processes wherein the morphometric investigation is an important aspect to unwrap the susceptible areas. Hence it is a prerequisite for the assessment of erosional pattern of the watershed. Thus, based on the response to erosional processes, prioritization task has been undertaken for fourteen sub-watersheds from basaltic region of Western Ghats of India. A morphometry-based framework using weighted sum analysis (WSA) coupled with the remote sensing data, field data and topographical maps were generated on geographical information system (GIS) platform to estimate the soil erosion susceptibility. The study also evaluates the performance of this new methodology by considering the sediment production rate (SPR) of these sub-watersheds. The resultant WSA-SPR model has prioritized the study area into high, moderate low and very low categories. The high and moderate priority areas lie in the proximity of outlet, upper elevated and undulating terrain of the watershed. It represents 41.38% of the total area covering SW1, 3, 13 and 14 sub-watersheds. This study proposes a useful tool to define areas for planning the strategies to control soil erosion and promote soil conservation. ARTICLE HISTORY

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“…Soils with temporary cultivation crops such as sugar cane are more vulnerable to erosion than soils with perennial or semi-perennial plants (Bertoni and Lombardi Neto 2012). In the cultivation of sugar cane, the intensive use of heavy agricultural machinery and piping on a large scale for irrigation leads to compaction and clogging of the soil pores reducing infiltration, which consequently increases surface runoff and accelerates erosion, as highlighted by Dorici et al (2016).…”

Section: Driving Forcesmentioning

confidence: 99%

Surface runoff and accelerated erosion in a peri-urban wellhead area in southeastern Brazil

et al. 2018

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Degradation of hydrological conditions can adversely impact water resource quality and quantity. This degradation can generate social and economic losses, including losses for users outside the basin area. Therefore, studies focusing on surface runoff and accelerated erosion processes are needed to enable interventions that address degradation-induced challenges.In the present study, the surface runoff and accelerated erosion potential of the Feijão River basin were presented in charts at a 1:50,000 scale. The Feijão River basin has an area of 243.16 km 2 and is used as the main water source for the city of São Carlos, Brazil. Geoenvironmental attributes, such as substrate, climate, relief, soil, water bodies and land cover and use, were integrated and assessed in a GIS environment, using a multicriteria analysis and weighted sum tool. The results show that a large part of the area (86.12% of the basin) exhibits a low surface runoff potential and a moderate accelerated erosion potential. Accelerated erosive processes are triggered by changes in soil cover and have a direct relationship with the removal of existing vegetation and implementation of anthropogenic activities. In this case, as well as for most of the areas in southeastern Brazil, extensive grazing followed by sugar cane cultivation was the main driving force of erosion, acting as trigger for accelerated erosive processes at the water source area.

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Accelerated erosion in a watershed in the southeastern region of Brazil

Cited by 14 publications

References 39 publications

Analysis of soil erosion and its relationships with land use/cover in Tabunio watershed

Analysis of soil erosion and its relationships with land use/cover in Tabunio watershed

Identification of erosion-prone areas using modified morphometric prioritization method and sediment production rate: a remote sensing and GIS approach

Surface runoff and accelerated erosion in a peri-urban wellhead area in southeastern Brazil

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