11/22/2023 0 Comments Ephemeral definition forestry![]() Chichester, Blackwell Publishing, Ltd.: 360-386. (2011): Gully erosion: procedures to adopt when modelling soil erosion in landscapes affected by gullying. Poesen J.W.A., Torri D.B., Vanwalleghem T.(2003): Gully erosion and environmental change: Importance and research needs. Poesen J.W.A., Nachtergaele J., Verstraeten G., Valentin C.(1999): Concentrated flow erosion rates as affected by rock fragment cover and initial soil moisture content. Poesen J.W.A., De Luna E., Franca A., Nachtergaele J., Govers G.(2003): Rill and gully development during an extreme winter runoff event in Norway. European Journal of Soil Science, 53: 449-463. (2002): Spatial and temporal variations in resistance of loess-derived soils to ephemeral gully erosion. Interagency Advisory Committee on Water Data, Subcommittee on Sedimentation, Las Vegas, March 24-27, 1986: 3-29-3-37. 4th Federal Interagency Sedimentation Conf. Earth Surface Processes and Landforms, 35: 217-228. (2010): Soil erosion resistance effects on rill and gully initiation points and dimensions. (2012): Protecting Agricultural Land from Erosion: Methodology. International Journal of Sediment Research, 20: 157-175. (2005): Modeling ephemeral gully erosion for conservation planning. Washington, D.C., National academies Press: 90-125. In: Soil Conservation: Assessing the National Resource Inventory. (1986): Understanding ephemeral gully erosion. EKOTOXA (2011): Determination of Contributing Areas Over the Sealing Profiles of Erosively Threatened Arable Drainage Pathways for Needs of the Water Framework Directive 2000/60/EC.Prague, Ministry of the Environment of the Czech Republic: 117-125. In: Evaluation of Floods in June and July 2009 in the Czech Republic. (2009): Evaluation of the impacts of floods on the landscape and the environment. Dumbrovský M., Sobotková V., Pavlík F., Uhrová J.(2013): Predicting ephemeral gully location and length using topographic index models. Daggupati P., Douglas-Mankin K.R., Sheshukov A.Y.ČÚZK (2018): WMS View Service - Orthophoto.(1999): Ephemeral gully erosion in southern Navarre (Spain). (2009): Similarity between morphological characteristics of rills and ephemeral gullies in Sicily, Italy. Capra A., Di Stefano C., Ferro V., Scicolone B.Earth Surface Processes and Landforms, 33: 263-279. (2008): Field investigation on rilling in the experimental Sparacia area, South Italy. Keywords: concentrated surface runoff field measurements gulliometer gully volume soil erosion A research effort to better understand the EG mechanism and causal factors over a wide range of watershed conditions is fundamental to the establishment of basic rules for the adoption of optimal conservation strategies. The aim of this paper is to contribute to the understanding of this issue, i.e., define and verify the basic crucial causal factors and propose guidelines for locating the potential EG occurrence and predicting the sediment load. Locating EGs and predicting their length is crucial for estimating the sediment load and planning conservation strategies. These results will become the basis for finding a predictive relationship and the quantification of EG erosion. ![]() Dependence was sought on the data of 51 cases of the detailed, measured and evaluated EGs. It is also important that the closest relationship was confirmed between the length of the gully and its calculated volume. The relationship was confirmed between the ephemeral gully (EG) length and the size of its contributing drainage area in accordance with studies conducted in other countries. A set of data, collected from 2012 to 2017 in a maize-growing area, especially on deep loess soils in the South Moravia Region, was used to analyse the morphological characteristics of the ephemeral gullies (EGs). The South Moravia Region was selected as the case study area - mainly for its natural conditions and high soil degradation risk. The unfavourable consequences of surface runoff are seen in the erosion processes degrading agricultural soils. It currently threatens more than half of the agricultural acreage through negative changes in the whole complex of soil properties. Soil erosion, including ephemeral gully erosion, is a serious degradation process in the Czech Republic. Masaryk Water Research Institute, Brno Branch, Brno, Czech Republic Institute of Water Landscape Management, Faculty of Civil Engineering, Brno University of Technology, Brno, Czech Republic 2 Soil & Water Res., 2020, 15(1):38-46 | DOI: 10.17221/231/2018-SWR An approach to identifying and evaluating the potential formation of ephemeral gullies in the conditions of the Czech Republic Original Paper Miroslav Dumbrovský 1, Karel Drbal 2, Veronika Sobotková *,1, Jana Uhrová 2 1
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