IDEAS home Printed from https://ideas.repec.org/a/caa/jnlswr/v15y2020i4id128-2019-swr.html
   My bibliography  Save this article

Possibilities of including surface runoff barriers in the slope-length factor calculation in the GIS environment and its integration in the user-friendly LS-RUSLE tool

Author

Listed:
  • Jiří Brychta

    (Department of Geography, Faculty of Science, J. E. Purkyně University, Ústí nad Labem, Czech Republic)

  • Martina Brychtová

    (Department of Land Use and Improvement, Faculty of Environment, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The effect of the morphology is key aspect of erosion modelling. In Universal Soil Loss Equation (USLE) type methods, this effect is expressed by the topographic factor (LS). The LS calculation in GIS is performed by a unit contributing area (UCA) method and can mainly be influenced by the pixel resolution, by the flow direction algorithm and by the inclusion of a hydrologically closed unit (HCU) principle, the cutoff slope angle (CSA) principle and the ephemeral gullies extraction (EG) principle. This research presents a new LS-RUSLE tool created with the inclusion of these principles in the automatic user-friendly GIS tool. The HCU principle using a specific surface runoff interruption algorithm, based on pixels with NoData values at the interruption points (pixels), appears to be key. With this procedure, the occurrence of overestimation results by flow conversion was rapidly reduced. Additionally, the reduction of extreme L and LS values calculated in the GIS environment was reached by the application of the CSA and EG principles. The results of the LS-RUSLE model show the prospective use of this tool in practice.

Suggested Citation

  • Jiří Brychta & Martina Brychtová, 2020. "Possibilities of including surface runoff barriers in the slope-length factor calculation in the GIS environment and its integration in the user-friendly LS-RUSLE tool," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 15(4), pages 246-257.
    • Handle: RePEc:caa:jnlswr:v:15:y:2020:i:4:id:128-2019-swr
    DOI: 10.17221/128/2019-SWR
    as

    Download full text from publisher

    File URL: http://swr.agriculturejournals.cz/doi/10.17221/128/2019-SWR.html
    Download Restriction: free of charge
    File URL: http://swr.agriculturejournals.cz/doi/10.17221/128/2019-SWR.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/128/2019-SWR?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Miroslav Dumbrovský & Karel Drbal & Veronika Sobotková & Jana Uhrová, 2020. "An approach to identifying and evaluating the potential formation of ephemeral gullies in the conditions of the Czech Republic," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 15(1), pages 38-46.
    2. Pathak, P., 1991. "Runoff sampler for small agricultural watersheds," Agricultural Water Management, Elsevier, vol. 19(2), pages 105-115, March.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Pathak, P. & Wani, S. P. & Singh, Piara & Sudi, R., 2004. "Sediment flow behaviour from small agricultural watersheds," Agricultural Water Management, Elsevier, vol. 67(2), pages 105-117, June.
    2. Pathak, P. & Sudi, R. & Wani, S.P. & Sahrawat, K.L., 2013. "Hydrological behavior of Alfisols and Vertisols in the semi-arid zone: Implications for soil and water management," Agricultural Water Management, Elsevier, vol. 118(C), pages 12-21.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnlswr:v:15:y:2020:i:4:id:128-2019-swr. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.