Abstract
It has been experimentally shown that there are two ranges of water flow velocities, at which the erodibility of a monofractional soil (of aggregates 1–2 mm) sharply differs. In the low-velocity range, the erodibility varies from 171.53 to 3.17 m–2 s2 at an increase in the soil density from 1.2 to 1.5 g/cm3. In the range of high velocities, it varies from 36.88 to 0.88 m–2 s2. The simultaneous solution of equations for the two velocity ranges enables us to obtain the boundary values of the flow velocity. Above them, other erodibility values should be taken into account at calculations. The boundary velocities for the model soil are within 1.6–1.7 m/s. This is explained by the fact that at a slow flow, water removes aggregates, which have lost the contact with the main soil as a result of its peptization by water. At high-velocity water flow, aggregates are detached under the effect of hydrodynamic forces.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
Geography of Gully Erosion, Ed. by E. F. Zorina (Moscow State Univ., Moscow, 2006) [in Russian].
B. V. Deryagin, N. V. Churaev, and V. M. Muller, Surface Forces (Nauka, Moscow, 1985) [in Russian].
M. S. Kuznetsov, Soil Loss Tolerance (Moscow State Univ., Moscow, 1981) [in Russian].
G. A. Larionov, O. G. Bushueva, N. G. Dobrovol’skaya, Z. P. Kiryukhina, S. F. Krasnov, L. F. Litvin, R. R. Murakaev, “Determination of the hydrophysical parameters of soil in an erosion model,” Eurasian Soil Sci. 43, 453–458 (2010).
G. A. Larionov, O. G. Bushueva, N. G. Dobrovol’skaya, Z. P. Kiryukhina, and L. F. Litvin, “Erodibility of model soils with different densities,” Eurasian Soil Sci. 44, 914–918 (2011).
G. A. Larionov, O. G. Bushueva, N. G. Dobrovol’skaya, Z. P. Kiryukhina, S. F. Krasnov, and L. F. Litvin, “Effect of the water temperature and soil moisture on the erodibility of chernozem samples: a model experiment,” Eurasian Soil Sci. 47, 734–740 (2014). https://doi.org/10.1134/S10642293140700966
G. A. Larionov, O. G. Bushueva, N. G. Dobrovol’skaya, Z. P. Kiryukhina, L. F. Litvin, and S. F. Krasnov, “Assessing the contribution of nonhydraulic forces to the destruction of bonds between soil particles during water erosion,” Eurasian Soil Sci. 49, 546–550 (2016). https://doi.org/10.1134/S1064229316050100
G. A. Larionov, O. G. Bushueva, A. V. Gorobets, N. G. Dobrovolskaya, Z. P. Kiryukhina, S. F. Krasnov, L. F. Litvin, I. A. Maksimova, and I. I. Sudnitsyn, “Experimental study of factors affecting soil erodibility,” Eurasian Soil Sci. 51, 336–344 (2018). https://doi.org/10.1134/S1064229318030067
G. A. Larionov, N. G. Dobrovol’skaya, Z. P. Kiryukhina, S. F. Krasnov, L. F. Litvin, A. V. Gorobets, and I. I. Sudnitsyn, “Effect of soil density, tensile strength, and water infiltration on the rupture rate of interaggregate bonds,” Eurasian Soil Sci. 50, 335–340 (2017). https://doi.org/10.1134/S1064229317010094
G. A. Larionov and S. F. Krasnov, “Probabilistic model of soil and cohesive ground erosion,” Eurasian Soil Sci. 33, 205–211 (2000).
V. I. Osipov, “Physicochemical theory of effective stress in soils,” Gruntovedenie, No. 2, 3–34 (2013) [in Russian].
E. V. Shein, Lecturers on Soil Physics (Moscow State Univ., Moscow, 2005) [in Russian].
E. V. Shein and E. Yu. Milanovskii, “The role of organic matter in the formation and stability of soil aggregates,” Eurasian Soil Sci. 36, 51–58 (2003).
W. M. Edwards and L. B. Owens, “Large storm effects on total soil erosion,” J. Soil Water Conserv. 46 (1), 75–78 (1991).
M. A. Nearing, J. M. Bradford, and S. C. Parker, “Soil detachment by shallow flow at low slopes,” Soil Sci. Soc. Am. J. 55 (2), 339–344 (1991).
M. A. Nearing, S. C. Parker, J. M. Bradford, and W. J. Elliot, “Tensile strength of thirty-three saturated repacked soils,” Soil Sci. Soc. Am. J. 55 (6), 1546–1551 (1991).
Funding
This work was performed according to the Research Plan (State Task) of the Makkaveev Research Laboratory of Soil Erosion and Fluvial Processes (development of methods and instruments) and was supported by the Russian Foundation for Basic Research (project no. 16-05-00474, experiments and analysis of data).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by I. Bel’chenko
Rights and permissions
About this article
Cite this article
Larionov, G.A., Gorobets, A.V., Dobrovolskaya, N.G. et al. Erodibility of a Model Soil in a Wide Range of Water Flow Velocities. Eurasian Soil Sc. 52, 1306–1309 (2019). https://doi.org/10.1134/S1064229319090047
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1064229319090047