Vegetation-Dependent Transformation of Rainfall : Throughfall Drop Size Distribution Under Contrasting Vegetation Types

Radulović, Lana (avtor), Šraj, Mojca (avtor), Szeles, Borbala (avtor), Parajka, Juraj (avtor), Blöschl, Günter (avtor), Marjanović, Dušan (avtor), Vilhar, Urša (avtor), Pavčič, Janez (avtor), Strauss, Peter (avtor), Alivio, Mark Bryan (avtor), Kuzmanić, Tamara (avtor), Lebar, Klaudija (avtor), Bezak, Nejc (avtor), Zabret, Katarina (avtor)

Different types of vegetation shape throughfall in various ways, which affects erosion and runoff generation processes. Direct comparisons of throughfall drop size distributions (TF DSD) across different vegetation systems remain unexplored; therefore,this study quantifies TF DSD of 33 events under three distinct vegetation types (a pine tree, a mixed forest and a maize field)within a unified framework. The amount and duration of TF was the highest in the forest, while TF under the maize exhibited the largest and the most uniform intensity regime. The diameter of the drops under the maize was the largest, resulting also in the highest proportion of canopy drip (drops > 2 mm). In the forest, the proportion of drips remained constant between events,while under the pine tree the splash throughfall prevailed (drops < 1 mm). Further analysis of the TF DSD with velocity–diam-eter diagrams, grouped according to their visual similarity with hierarchical clustering, resulted in three distinct clusters. Th eevents under pine trees were placed in the first cluster, those under mixed forests in the second, and the events under maize were divided between the first cluster, alongside the TF events under pine trees, and a separate third cluster. Compared to the first cluster, the events in the third cluster were characterised by increased TF intensity and larger TF drops. This indicates that there is a dynamic control of TF DSD under the maize, dependent on the interaction between the characteristics of rainfall and the canopy. Understanding these differences can support the design of vegetation cover in agricultural and urban landscapes toenhance infiltration, reduce soil erosion and regulate runoff.

• Jezik: Angleški jezik
• Ključne besede: hierarchical clustering, maize crop, mixed forest, single tree, hroughfall, velocity–diameter ratio
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2026
• Št. strani: Str. 1-14
• Številčenje: št. 10, Letn. 40
• PID: 20.500.12556/RUL-190009
• UDK: 551.5:556
• ISSN pri članku: 0885-6087
• DOI: 10.1002/hyp.70724
• COBISS.SI-ID: 301562371
• Datum objave v RUL: 20.10.2026

Gradivo je del revije

• Naslov: Hydrological processes
• Skrajšan naslov: Hydrol. process.
• Založnik: Wiley
• ISSN: 0885-6087
• COBISS.SI-ID: 25579776

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: prepuščene padavine, razmerje hitrost-premer, samostojno drevo, mešani gozd, koruza, hierarhično grupiranje