a 2025

SEDIMENT CONNECTIVITY ASSESSMENT AND SOIL EROSION MODELLING:HOW TO IDENTIFY HOT-SPOTS AND IMPROVE SOIL PROTECTION MEASURES

KOREŇOVÁ, Simona; Monika ŠULC MICHALKOVÁ; Radek BACHAN; Petr MÜNSTER; Adam VALÍK et al.

Základní údaje

Originální název

SEDIMENT CONNECTIVITY ASSESSMENT AND SOIL EROSION MODELLING:HOW TO IDENTIFY HOT-SPOTS AND IMPROVE SOIL PROTECTION MEASURES

Autoři

KOREŇOVÁ, Simona; Monika ŠULC MICHALKOVÁ; Radek BACHAN; Petr MÜNSTER a Adam VALÍK

Vydání

State of geomorphological research in the year 2025, 2025

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Stát vydavatele

Slovensko

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ne

Klíčová slova anglicky

Connectivity, Soil erosion, Extreme rainfalls, Critical points, Hot-spots, WEPP model
Změněno: 16. 4. 2025 14:25, Mgr. Simona Koreňová

Anotace

V originále

Extreme rainfall events have become more frequent in recent decades. They especially threaten small watersheds with limited drainage capacity. Knowledge about sediment connectivity is crucial for the mitigation of the negative impacts of these events on local communities. Unfortunately, information on connectivity, extent of soil erosion, and causal precipitation events is insufficient or missing. In our research, we used various methods for sediment connectivity assessment (ECA, IC, field mapping) and tested the WEPP (GeoWEPP) model in five small catchments in the Czech Republic, where the precipitation caused soil erosion on arable land. The WEPP model was validated by results obtained from UAV measurement. GeoWEPP soil erosion maps were compared with the results of the connectivity assessment for Hot-spot delineation. The main output is maps for each catchment containing hot spots regarding soil erosion and sediment connectivity. For one catchment, a series of maps were created showing the impact of crop type change on soil erosion and sediment connectivity. This study i) offers a new perspective on the link between sediment connectivity and the topic of soil erosion, ii) Tests the widely used WEPP model and its GIS interface on available data for the Czech Republic, iii) Suggests results that can serve as a basis for land use management, soil erosion, and flood protection improvement.

Návaznosti

MUNI/A/1648/2024, interní kód MU
Název: Dynamika přírodního a sociálního prostředí v geografické perspektivě
Investor: Masarykova univerzita, Dynamika přírodního a sociálního prostředí v geografické perspektivě