Soil Water Repellency of Different Types of Soils Aggregate and Its Effect on the Splash Erosion

NI Shimin1; YANG Wei2; WANG Jie3; WANG Junguang1; CAI Chongfa1

doi:10.13870/j.cnki.stbcxb.2018.01.027

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Soil Water Repellency of Different Types of Soils Aggregate and Its Effect on the Splash Erosion

更新时间：2025-03-12

- Soil Water Repellency of Different Types of Soils Aggregate and Its Effect on the Splash Erosion
- Vol. 32, Issue 1, Pages: 167-173(2018)
- 作者机构：
  
  1. 华中农业大学水土保持研究中心,武汉,430070
  2. 湖北省水利水电科学研究院,武汉,430070
  3. 广东省生态环境技术研究所,广州,510650
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2018.01.027
  CLC： S157.1
- Published：2018
- 稿件说明：
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NI Shimin1, YANG Wei2, WANG Jie3, et al. Soil Water Repellency of Different Types of Soils Aggregate and Its Effect on the Splash Erosion[J]. 2018, 32(1): 167-173.
DOI：

NI Shimin1, YANG Wei2, WANG Jie3, et al. Soil Water Repellency of Different Types of Soils Aggregate and Its Effect on the Splash Erosion[J]. 2018, 32(1): 167-173. DOI： 10.13870/j.cnki.stbcxb.2018.01.027.

摘要

为明确土壤的斥水性特征及其对土壤溅蚀的影响，以3种不同类型及利用方式土壤为研究对象，探究了土壤斥水性分布规律及其影响因素，系统分析了土壤斥水性对土壤溅蚀的影响。结果表明：（1）耕地土壤的斥水性最低，表层土壤斥水性高于下层，黄褐土斥水性（13.15 sec）高于其他类型土壤，整体上看，斥水性受到土壤机械组成和游离铁、铝氧化物的显著影响（R2

Abstract

In order to explore the relationships between soil splash erosion and water repellency

three types of soils (yellow cinnamon soil

brown-red soil

latosolic red soil) under different land uses (cultivated land

forest land

waste land) were selected to investigate the variations of soil water repellency (SWR) and its effect on soil splash erosion. Main results are shown as follows: (1) The SWR was the lowest for the arable soil among the studied three land uses

and it was higher in the surface soil layers than in the subsurface. Among all test soils

the SWR was largest for the cinnamon soil (13.15 sec). The SWR was significantly affected by soil mechanical composition and free iron aluminum oxides (R2 < -0.40

p < 0.01). (2) Soil splash erosion rate generally increased initially

and then decreased. The relationship between the cumulative splash amount and rainfall duration could be well fitted by the logarithmic function model. (3) The SWR had a significant positive effect on splash erosion under a certain range of rain intensity

also showing a logarithmic function (R2 ≥ 0.90

p < 0.01). These findings could provide theoretical reference basis for rainfall erosion mechanism research and erosion process model.

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