Mass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion

This research aims to unfold the mass exchange mechanism of water and soil on the soil surface in the rainfall splash erosion process. We regard the rainfall splash erosion process as a collision process between the raindrop and the soil particle on the soil interface. This recognition allows us to...

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Autores principales:	Sun Sanxiang, Zhang Yunxia, Lei Pengshui
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	rainfall splash erosion amount infiltration amount mass exchange equivalent spring damping model Science Q
Acceso en línea:	https://doaj.org/article/278146ee5a1948078067e33e3f72c8cd
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id	oai:doaj.org-article:278146ee5a1948078067e33e3f72c8cd
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spelling	oai:doaj.org-article:278146ee5a1948078067e33e3f72c8cd2021-11-16T07:41:10ZMass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion2296-646310.3389/feart.2021.739804https://doaj.org/article/278146ee5a1948078067e33e3f72c8cd2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/feart.2021.739804/fullhttps://doaj.org/toc/2296-6463This research aims to unfold the mass exchange mechanism of water and soil on the soil surface in the rainfall splash erosion process. We regard the rainfall splash erosion process as a collision process between the raindrop and the soil particle on the soil interface. This recognition allows us to incorporate research approaches from the spring vibrator model, which has been developed for simulating the impact of liquid drops on solid surface. We further argue that because a same set of factors determine the splash amount and infiltration amount and it is relatively simpler to observe the infiltration amount, an investigation into the relationship between the splash amount and infiltration amount would be able to provide a new channel for quantifying the splash erosion. This recognition leads us to examining the relationship between single raindrop, rainfall kinetic energy and splash erosion from both theoretical and empirical angles, with an emphasis on the relationship between the infiltration amount and the splash erosion. Such an investigation would add value to the collective effort to establish mass exchange law in water-soil interface during rainfall splash erosion. It is found that during the rainfall splash process, the splash erosion is proportional to the rainfall kinetic energy; and has a linear relation to the infiltration amount, with the rainfall intensity as one of important parameters and the slope depending on the unit conversation of the infiltration amount and the splash erosion. If the units of two items are same, the slope is the ratio of the soil and water density, and the splash erosion velocity of the rainfall is half of the rainfall terminal velocity. The single raindrop kinetic energy and the splash erosion have a quadratic parabola relation, and the splash velocity is about 1/3 of single raindrop terminal velocity.Sun SanxiangSun SanxiangZhang YunxiaLei PengshuiLei PengshuiFrontiers Media S.A.articlerainfallsplash erosion amountinfiltration amountmass exchangeequivalent spring damping modelScienceQENFrontiers in Earth Science, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rainfall splash erosion amount infiltration amount mass exchange equivalent spring damping model Science Q
spellingShingle	rainfall splash erosion amount infiltration amount mass exchange equivalent spring damping model Science Q Sun Sanxiang Sun Sanxiang Zhang Yunxia Lei Pengshui Lei Pengshui Mass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion
description	This research aims to unfold the mass exchange mechanism of water and soil on the soil surface in the rainfall splash erosion process. We regard the rainfall splash erosion process as a collision process between the raindrop and the soil particle on the soil interface. This recognition allows us to incorporate research approaches from the spring vibrator model, which has been developed for simulating the impact of liquid drops on solid surface. We further argue that because a same set of factors determine the splash amount and infiltration amount and it is relatively simpler to observe the infiltration amount, an investigation into the relationship between the splash amount and infiltration amount would be able to provide a new channel for quantifying the splash erosion. This recognition leads us to examining the relationship between single raindrop, rainfall kinetic energy and splash erosion from both theoretical and empirical angles, with an emphasis on the relationship between the infiltration amount and the splash erosion. Such an investigation would add value to the collective effort to establish mass exchange law in water-soil interface during rainfall splash erosion. It is found that during the rainfall splash process, the splash erosion is proportional to the rainfall kinetic energy; and has a linear relation to the infiltration amount, with the rainfall intensity as one of important parameters and the slope depending on the unit conversation of the infiltration amount and the splash erosion. If the units of two items are same, the slope is the ratio of the soil and water density, and the splash erosion velocity of the rainfall is half of the rainfall terminal velocity. The single raindrop kinetic energy and the splash erosion have a quadratic parabola relation, and the splash velocity is about 1/3 of single raindrop terminal velocity.
format	article
author	Sun Sanxiang Sun Sanxiang Zhang Yunxia Lei Pengshui Lei Pengshui
author_facet	Sun Sanxiang Sun Sanxiang Zhang Yunxia Lei Pengshui Lei Pengshui
author_sort	Sun Sanxiang
title	Mass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion
title_short	Mass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion
title_full	Mass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion
title_fullStr	Mass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion
title_full_unstemmed	Mass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion
title_sort	mass exchange of water and soil on the soil surface in the rainfall splash erosion
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/278146ee5a1948078067e33e3f72c8cd
work_keys_str_mv	AT sunsanxiang massexchangeofwaterandsoilonthesoilsurfaceintherainfallsplasherosion AT sunsanxiang massexchangeofwaterandsoilonthesoilsurfaceintherainfallsplasherosion AT zhangyunxia massexchangeofwaterandsoilonthesoilsurfaceintherainfallsplasherosion AT leipengshui massexchangeofwaterandsoilonthesoilsurfaceintherainfallsplasherosion AT leipengshui massexchangeofwaterandsoilonthesoilsurfaceintherainfallsplasherosion
_version_	1718426592565264384

Mass Exchange of Water and Soil on the Soil Surface in the Rainfall Splash Erosion

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