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A Consideration on the Quantitative Distribution of Splashed Soil by Rainfall

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 35 Issue 1 Page 95-103
published_at 1984
KJ00000156534.pdf
[fulltext] 696 KB
Title
降雨による飛散土量分布に関する一考察
A Consideration on the Quantitative Distribution of Splashed Soil by Rainfall
Creators Fujiwara Teruo
Creators Minami Nobuhiro
Creators Nakayama Yoshikazu
Source Identifiers
One of the process of soil erosion phenomena by natural rainfall is the soil-particle detachment by raindrops. It is well known that the detached soil particle is easily transported by the water flow, so that soil erosion is advanced. This study is the basic analysis of the relationship between rainfall energy as an impulse by falling raindrop and the amount of detached soil. In the first place, we made the simulation analysis based on the data of splashed soil by single raindrop and obtained the following distribution density function of splashed soil : f(X)=C・exp(-BX^A) Then, we determined parameters A and B and relate them with the rainfall energy by the experiment using rainfall simulator. Finally, (SP)_<unit> which is the amount of splashed soil from unit area was calculated using the obtained values of A and B. The resultant (SP)_<unit> was compared with the experimental value.
Subjects
土木工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1984
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部