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The influence of rainfall interception on the erosive power of raindrops under the birch tree
ID Zore, Anita (Author), ID Bezak, Nejc (Author), ID Šraj, Mojca (Author)

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Abstract
Healthy soils are one of the key priorities of the EU Soil Strategy, and soil erosion can present a threat to soils around the world. Rainfall erosivity is the main driver of soil erosion by water. Rainfall interception by vegetation can reduce the erosive power of raindrops, and consequently measures involving vegetation can mitigate soil erosion losses. In this study, the effect of rainfall interception on the erosive power of raindrops under the birch tree in an urban park in the city of Ljubljana is investigated. More than one year of measurements of drop-size distribution using two optical disdrometers placed above and below the birch tree canopy were used to investigate the impact of rainfall interception on the erosive power of raindrops. The number of drops, fall velocity, and drop diameter were, on average smaller below the canopy in comparison to the measurements above the canopy for 20%, 7% and 27%, respectively. This also resulted in a reduction in the rainfall kinetic energy (3% and 30% in the leafless and leafed periods, respectively) and rainfall erosivity (21% and 50% for the leafless and leafed periods, respectively). The results demonstrate that rainfall interception has a significant seasonal influence on the erosive power of raindrops. Therefore, vegetation characteristics should be considered as time-varying rather than constant parameters in soil erosion modelling studies.

Language:English
Keywords:rainfall interception, throughfall, drop-size distribution, DSD, rainfall erosivity, optical disdrometer, kinetic energy
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Publication status:Published
Publication version:Version of Record
Year:2022
Number of pages:13 str.
Numbering:Vol. 613, pt. B, art. 128478
PID:20.500.12556/RUL-142453 This link opens in a new window
UDC:556.1
ISSN on article:0022-1694
DOI:10.1016/j.jhydrol.2022.128478 This link opens in a new window
COBISS.SI-ID:123536131 This link opens in a new window
Publication date in RUL:10.11.2022
Views:897
Downloads:61
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Record is a part of a journal

Title:Journal of hydrology
Shortened title:J. hydrol.
Publisher:Elsevier
ISSN:0022-1694
COBISS.SI-ID:25750784 This link opens in a new window

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

Language:Slovenian
Keywords:prestrezanje padavin, prepuščene padavine, porazdelitev velikosti kapljic, erozivnost padavin

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P2-0180
Name:Vodarstvo in geotehnika: orodja in metode za analize in simulacije procesov ter razvoj tehnologij

Funder:Other - Other funder or multiple funders
Funding programme:UNESCO Chair on Water-related Disaster Risk Reduction
Name:Interception experimentation and modelling for enhanced impact analysis of nature based solutions

Funder:Other - Other funder or multiple funders
Funding programme:CELSA
Name:Interception experimentation and modelling for enhanced impact analysis of nature based solutions

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