Effect of rainfall intensity and slope steepness on the development of soil erosion in the Southern Cis-Ural region (A model experiment)

Sobol, N. V.; Габбасова, И. М.; Komissarov, Mikhail

doi:10.1134/s106422931709006x

Cited by 23 publications

(15 citation statements)

References 8 publications

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“…The slope angles are one of the factors determining soil washout, and the degree of erosion manifestation depends on both the angle and the exposure of the slopes (to a greater extent) [16]. Therefore, it is advisable to form such groups by soil types considering the erosion degree, exposure and slope angles at the same time.…”

Section: Resultsmentioning

confidence: 99%

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Application of geoinformation systems for a complex analysis of data from agrochemical and soil-erosion monitoring of soils

Malysheva

2021

BIO Web Conf.

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The article describes the development of a geoinformation system module (using the example of GIS “Agroecologist Online”) to automate the complex analysis of agrochemical and soil-erosion monitoring data. With the help of an additional GIS module, it allows you to generate reports with tabular data of various groupings: by soil type and degree of erosion; by soil type and slope steepness; by soil type, degree of erosion and exposure; by soil type, slope steepness and exposure; by soil type, degree of erosion, slope steepness and exposure. Based on the presented tables, using the module, it is possible to analyze the indicators of agrochemical and soil-erosion survey in a comprehensive manner. The module also allows you to predict the level of yield of certain crops, to timely identify the deterioration of soil resources for a certain territorial unit (within a specific farm, a specific region, as well as on the territory of the entire Russian Federation).

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Section: Resultsmentioning

confidence: 99%

“…The relationship between the agrochemical parameters of the soil and its soil erosion characteristics has been studied by many scientists for a long time [5][6][7][8][9][10][11][12][13][14][15][16]. However, automatic processing of agrochemical and soil erosion monitoring data is associated with certain difficulties.…”

Section: Introductionmentioning

confidence: 99%

Application of geoinformation systems for a complex analysis of data from agrochemical and soil-erosion monitoring of soils

Malysheva

2021

BIO Web Conf.

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“…e larger the slope is, the faster the runoff speed is and the greater the rainfall erosion is. e greater the slope is, the greater the influence of rainfall on slope erosion is [9][10][11][12]. When the slope gradient exceeds a certain value, the rainfall erosion of the embankment is inversely proportional to it.…”

Section: Introductionmentioning

confidence: 99%

Rainfall Erosion Predictions for Artificial High‐Filled Embankment with Reinforcement

Jing

et al. 2021

Advances in Materials Science and Engineering

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In recent years, rainstorm disasters caused by global warming have frequently occurred in China. It has caused serious damage to artificial high embankments. In this paper, the influence of rainfall intensity, slope, and reinforced layers on the erosion and destruction of the artificial high embankment is deeply analyzed. Through the model test, the rainfall erosion prediction model is established. The results show that (1) the gully width, depth, and erosion amount increased with the increase in rainfall intensity and slope and decreased with the increase in reinforcement layers; (2) the final ditch shape of the embankment is influenced by steel bars; and (3) according to the model test data, the mathematical model of dike scouring is established. Rainfall intensity and the coupling between slope and reinforced layers are considered in the model. It can be used for predicting erosion during rainfall.

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“…The process of soil erosion is influenced by various factors including rainfall characteristics [18][19][20], topographic conditions [21,22], soil properties [23][24][25], farming methods [8,26], and vegetation cover [27,28], among which rainfall intensity (RI) and slope steepness (SS) have been widely studied and are still the focus of research [29][30][31]. For example, Sobol et al [32] investigated the effects of rainfall intensity and slope steepness on the development of soil erosion in the southern Cis-Ural region, finding that soil loss linearly depended on these two factors, and that the clay content was higher in eroded material than in the original soils. Dai et al [33] conducted field runoff plot-monitoring tests to reveal the plot-scale characteristics of surface soil erosion in the karst rocky desertification regions.…”

Section: Introductionmentioning

confidence: 99%

Runoff Characteristics and Soil Loss Mechanism in the Weathered Granite Area under Simulated Rainfall

Sun

Deng

Fei

et al. 2021

Water

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Soils developed from the parent materials of highly weathered granite are particularly susceptible to soil erosion. Therefore, it is of great significance to conduct in-depth research on runoff characteristics and soil loss mechanisms in weathered granite areas. Using the weathered granite area in the hilly region of southeastern China as the research object, we conducted indoor artificial rainfall simulation experiments involving three slope steepnesses (SSs), 8°, 15°, and 25°, and five rainfall intensities (RIs), 0.5, 1.0, 1.5, 2.0, and 2.5 mm/min. The results showed that sediment load (SL) has positively linear relationships with mean runoff velocity (V), Reynolds number (Re), Froude number (Fr), shear stress (τ), and stream power (w). The eroded sediment was principally composed of silt and clay that accounted for 65.41–73.41% of the total SL. There was a boundary point at 0.02 mm for the particle size distribution (PSD) of the eroded sediment. The enrichment ratio (Er) of sand-grained particles (0.02–2 mm) ranged from approximately 0.45 to 0.65, while the Er of fine-grained particles (<0.02 mm) ranged from approximately 1.37 to 1.80. These results increase our understanding of the relationships among RI, SS, runoff, and soil losses from weathered granite hillslopes, particularly the relationships between different hydraulic parameters and sediment size characteristics.

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Effect of rainfall intensity and slope steepness on the development of soil erosion in the Southern Cis-Ural region (A model experiment)

Cited by 23 publications

References 8 publications

Application of geoinformation systems for a complex analysis of data from agrochemical and soil-erosion monitoring of soils

Application of geoinformation systems for a complex analysis of data from agrochemical and soil-erosion monitoring of soils

Rainfall Erosion Predictions for Artificial High‐Filled Embankment with Reinforcement

Runoff Characteristics and Soil Loss Mechanism in the Weathered Granite Area under Simulated Rainfall

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