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Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. Maturity Process of RillsPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: International Symposium on Erosion and Landscape Evolution (ISELE), 18-21 September 2011, Anchorage, Alaska 711P0311cd Paper #11128.(doi:10.13031/2013.39187)Authors: Chia-Chun Wu, Ching-Lun Kao, Kuan-Sheng Wu, Po-Lung Chen, Hsiao-Jou Lin, Ching-Wei Lin Keywords: Rill maturity, Erosion process, Transport limiting, Supply limiting The objective of this study was to explore the maturity process of rills. A box measured 3 m wide, 0.5 m deep, and 3 m long filled with silt loam soil was placed under a 15-m tall rainfall tower. The soil box was raised to a slope gradient of 30% and rained on at 120 mm/h for one hour. Time-lapsed pictures focusing on the development of rills were taken throughout the experiment, and images were post-processed by changing the white balance to enhance the outlines of rills. Time-lapse images revealed two processes during the course of rill maturity. One is ripple formation, and the other is network formation. Figure a illustrates the rill initiation and development processes observed in this experiment. (Download PDF) (Export to EndNotes)
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