Devianti, Irwansyah, Yuswar Yunus, Nunik Destria Arianti, Dewi Sartika Thamren, Agustami Sitorus
The extension of oil palm plantations in Indonesia has encroached on land with a slope of more than 15%, which impacts the possibility of erosion and landslides. However, conservation efforts to reduce erosion are yet to be fully established. Therefore, the present work studies the effect of biopores infiltration holes on erosion at oil palm plantations area with land slopes greater than 15%. Besides, surface runoff with erosion is modeled to find the relationship. The method used in this study is to combine mechanical conservation methods in the form of biopores infiltration holes in an area that already has cover crops, such as Mucuna Bracteata. Two experimental plots were designed, namely (i) plots without biopores infiltration holes and (ii) plots with biopores infiltration holes. The results showed that soil erodibility in the oil palm plantations area was of a high of 0.65. Applying biopores infiltration holes in the field reduced surface runoff and erosion rates by 31.81% and 29.66%, respectively. The relationship of surface runoff with erosion rates on the land shows a very close case where the coefficient of determination in each plot is 0.96 and 0.92. © 2022 WITPress. All rights reserved.
Department of Agricultural Engineering, Faculty of Agriculture, Syiah Kuala University, Banda Aceh, 23111, Indonesia; Department of Informatics Engineering, Nusa Putra University, Sukabumi, 43155, Indonesia; Department of Civil Engineering, Nusa Putra University, Sukabumi, 43155, Indonesia; Research Center for Appropriate Technology, National Research and Innovation Agency (BRIN), Subang, 41213, Indonesia; Department of Agricultural Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, 10520, Thailand
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