Estimating Sediment Yield and Soil Loss for Conservation Prioritization: Implications for Natural Resource Management in the Boricha Sub-Catchment, Rift Valley River Basin, Ethiopia

Estimating Sediment Yield and Soil Loss for Conservation Prioritization: Implications for Natural Resource Management in the Boricha Sub-Catchment, Rift Valley River Basin, Ethiopia | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Estimating Sediment Yield and Soil Loss for Conservation Prioritization: Implications for Natural Resource Management in the Boricha Sub-Catchment, Rift Valley River Basin, Ethiopia Rebecca Abugri, Tafesse Alemu, Ashenafi Wondimu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7525863/v1 This work is licensed under a CC BY 4.0 License Status: Under Revision Version 1 posted 9 You are reading this latest preprint version Abstract Soil erosion continues to threaten the sustainability of farming activities in Ethiopia’s highland areas, where steep slopes and variable rainfall persistently impact productivity and environmental health. Focusing on Boricha Sub-Catchment in the Rift Valley Basin, the study examined patterns of soil loss and sediment yield using the RUSLE model and 2022 GIS-based spatial inputs. Key input parameters included rainfall, elevation, soil type, and land cover. Estimated annual soil loss ranged from 0 to 359.76 t/ha/yr, with an average of 31.63 t/ha/yr, well above Ethiopia’s tolerable soil loss threshold. Sediment yield across the catchment varied between 0 and 80.7 t/ha/yr, averaging 2.01 t/ha/yr. The sediment delivery ratio was calculated as 0.2234. Northern and central zones were identified as erosion hotspots, particularly in sub-watersheds SW1, SW10, and SW9. In contrast, SW3, SW4, and SW7 showed minimal erosion activity. These findings support a prioritization framework for soil conservation, offering evidence-based recommendations such as reforestation, terracing, and check dam construction. The study confirms the value of GIS-integrated RUSLE modeling as a practical tool for decision-making in watershed protection. Soil erosion sediment delivery RUSLE GIS Boricha sub-catchment conservation planning Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Revision Version 1 posted Editorial decision: Revision requested 06 Oct, 2025 Reviews received at journal 05 Oct, 2025 Reviews received at journal 26 Sep, 2025 Reviewers agreed at journal 25 Sep, 2025 Reviewers agreed at journal 25 Sep, 2025 Reviewers invited by journal 25 Sep, 2025 Editor assigned by journal 13 Sep, 2025 Submission checks completed at journal 04 Sep, 2025 First submitted to journal 03 Sep, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7525863","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":525320786,"identity":"1dff6293-5527-4364-af57-cf4670b005f7","order_by":0,"name":"Rebecca 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Basin, Ethiopia","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"journal-of-sedimentary-environments","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"jsev","sideBox":"Learn more about [Journal of Sedimentary Environments](https://link.springer.com/journal/43217)","snPcode":"43217","submissionUrl":"https://submission.nature.com/new-submission/43217/3","title":"Journal of Sedimentary 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Focusing on Boricha Sub-Catchment in the Rift Valley Basin, the study examined patterns of soil loss and sediment yield using the RUSLE model and 2022 GIS-based spatial inputs. Key input parameters included rainfall, elevation, soil type, and land cover. Estimated annual soil loss ranged from 0 to 359.76 t/ha/yr, with an average of 31.63 t/ha/yr, well above Ethiopia\u0026rsquo;s tolerable soil loss threshold. Sediment yield across the catchment varied between 0 and 80.7 t/ha/yr, averaging 2.01 t/ha/yr. The sediment delivery ratio was calculated as 0.2234. Northern and central zones were identified as erosion hotspots, particularly in sub-watersheds SW1, SW10, and SW9. In contrast, SW3, SW4, and SW7 showed minimal erosion activity. These findings support a prioritization framework for soil conservation, offering evidence-based recommendations such as reforestation, terracing, and check dam construction. 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