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Crop-management factor calculation using weights of spatio-temporal distribution of rainfall erosivity

Author

Listed:
  • Jiří BRYCHTA

    (Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Miloslav JANEČEK

    (Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Alena WALMSLEY

    (Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

Inappropriate integration of USLE or RUSLE equations with GIS tools and Remote Sensing (RS) data caused many simplifications and distortions of their original principles. Many methods of C and R factor estimation were developed due to the lack of optimal data for calculations according to original methodology. This paper focuses on crop-management factor evaluation (C) weighted by fully distributed form of rainfall erosivity factor (R) distribution throughout the year. We used high resolution (1-min) data from 31 ombrographic stations (OS) in the Czech Republic (CR) for monthly R map creation. All steps of the relatively time-consuming C calculation were automated in GIS environment with an innovative procedure of R factor weight determination for each agro-technical phase by land parcel geographic location. Very high spatial and temporal variability of rainfall erosivity within each month and throughout the year can be observed from our results. This highlights the importance of C factor calculation using a correctly presented method with emphasis on the geographic location of given land parcels.

Suggested Citation

  • Jiří BRYCHTA & Miloslav JANEČEK & Alena WALMSLEY, 2018. "Crop-management factor calculation using weights of spatio-temporal distribution of rainfall erosivity," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 13(3), pages 150-160.
    • Handle: RePEc:caa:jnlswr:v:13:y:2018:i:3:id:100-2017-swr
    DOI: 10.17221/100/2017-SWR
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    References listed on IDEAS

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    1. Alena Jakubíková & Miloslav Janeček & Martin Tippl, 2006. "Field Determination of the Specific Input Characteristics to Calculate the Value of C Factor of Time-variable Crops for the Revised Universal Soil Loss Equation (RUSLE)," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 1(1), pages 10-15.
    2. Wenwu Zhao & Bojie Fu & Yang Qiu, 2013. "An Upscaling Method for Cover-Management Factor and Its Application in the Loess Plateau of China," IJERPH, MDPI, vol. 10(10), pages 1-15, October.
    3. Jiří BRYCHTA & Miloslav JANEČEK, 2017. "Evaluation of discrepancies in spatial distribution of rainfall erosivity in the Czech Republic caused by different approaches using GIS and geostatistical tools," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 12(2), pages 117-127.
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