Evaluation of Soil Fertility Status and Soil Carbon Stock Under Acacia Abyssinica -Based Parkland Agroforestry Practice in Borena District, Amhara Regional State, Ethiopia

Evaluation of Soil Fertility Status and Soil Carbon Stock Under Acacia Abyssinica -Based Parkland Agroforestry Practice in Borena District, Amhara Regional State, 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 Evaluation of Soil Fertility Status and Soil Carbon Stock Under Acacia Abyssinica -Based Parkland Agroforestry Practice in Borena District, Amhara Regional State, Ethiopia Mr. Dagmiyalem Abye Amare, Dr. Tessema Toru, Dr. Bobe Bedadi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8194077/v1 This work is licensed under a CC BY 4.0 License Status: Under Revision Version 1 posted 22 You are reading this latest preprint version Abstract Parkland agroforestry is one of the oldest traditional practices characterized by planting scattered trees on farmland for socio-economic and cultural purposes. In Ethiopia, there are limited studies that emphasize the impact of Acacia Abyssinica agroforestry practices on soil fertility and climate change mitigation. The study was conducted in Borena District of Amhara Regional State, Ethiopia, to evaluate the impact of Acacia Abyssinica -based parkland agroforestry on soil fertility and carbon stock potential. A mixture of purposive and random sampling techniques were employed to select sample kebeles. 54 soil samples were collected from sample Acacia Abyssinica at half of the tree canopy, edge of the canopy, and 5 meters away from the canopy edge. The results showed that organic carbon percentage and soil organic carbon stock were significantly and positively affected (p < 0.05) by both main effects and interaction effects. The highest mean values of organic carbon (2.23) and soil organic carbon stock (75.037) were recorded at a soil depth of 0–30 cm at half of the tree canopy, while the lowest mean values were observed at a soil depth of 30–60 cm at 5 meters away from the canopy edge. Bulk Density, Total Nitrogen, Available Water Content, available Phosphorus, Cation Exchange Capacity, Exchangeable Potassium and Magnesium were significantly influenced (P < 0.05) by distance from the tree and soil depth. The study uncovered the environmental contribution of Acacia Abyssinica though further studies are required to explore how and why farmers maintain the trees on farmlands and their divers economic, social and environmental contribution. Soil Fertility Organic Carbon Soil Depth Canopy parkland Agroforestry and soil physio chemical properties Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Revision Version 1 posted Editorial decision: Revision requested 18 Dec, 2025 Reviews received at journal 18 Dec, 2025 Reviews received at journal 17 Dec, 2025 Reviews received at journal 17 Dec, 2025 Reviews received at journal 16 Dec, 2025 Reviews received at journal 15 Dec, 2025 Reviewers agreed at journal 14 Dec, 2025 Reviews received at journal 11 Dec, 2025 Reviews received at journal 11 Dec, 2025 Reviewers agreed at journal 11 Dec, 2025 Reviewers agreed at journal 11 Dec, 2025 Reviewers agreed at journal 11 Dec, 2025 Reviewers agreed at journal 10 Dec, 2025 Reviewers agreed at journal 10 Dec, 2025 Reviewers agreed at journal 09 Dec, 2025 Reviewers agreed at journal 09 Dec, 2025 Reviewers agreed at journal 09 Dec, 2025 Reviewers agreed at journal 08 Dec, 2025 Reviewers invited by journal 08 Dec, 2025 Editor assigned by journal 04 Dec, 2025 Submission checks completed at journal 03 Dec, 2025 First submitted to journal 24 Nov, 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-8194077","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":558187437,"identity":"d19c7fb6-6136-490a-b236-e19b3fcf35b8","order_by":0,"name":"Mr. Dagmiyalem Abye 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Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Soil Fertility, Organic Carbon, Soil Depth, Canopy, parkland Agroforestry, and soil physio chemical properties","lastPublishedDoi":"10.21203/rs.3.rs-8194077/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8194077/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eParkland agroforestry is one of the oldest traditional practices characterized by planting scattered trees on farmland for socio-economic and cultural purposes. In Ethiopia, there are limited studies that emphasize the impact of Acacia \u003cem\u003eAbyssinica\u003c/em\u003e agroforestry practices on soil fertility and climate change mitigation. The study was conducted in Borena District of Amhara Regional State, Ethiopia, to evaluate the impact of \u003cem\u003eAcacia Abyssinica\u003c/em\u003e-based parkland agroforestry on soil fertility and carbon stock potential. A mixture of purposive and random sampling techniques were employed to select sample kebeles. 54 soil samples were collected from sample \u003cem\u003eAcacia Abyssinica at\u003c/em\u003e half of the tree canopy, edge of the canopy, and 5 meters away from the canopy edge. The results showed that organic carbon percentage and soil organic carbon stock were significantly and positively affected (p\u0026thinsp;\u0026lt;\u0026thinsp;0.05) by both main effects and interaction effects. The highest mean values of organic carbon (2.23) and soil organic carbon stock (75.037) were recorded at a soil depth of 0\u0026ndash;30 cm at half of the tree canopy, while the lowest mean values were observed at a soil depth of 30\u0026ndash;60 cm at 5 meters away from the canopy edge. Bulk Density, Total Nitrogen, Available Water Content, available Phosphorus, Cation Exchange Capacity, Exchangeable Potassium and Magnesium were significantly influenced (P\u0026thinsp;\u0026lt;\u0026thinsp;0.05) by distance from the tree and soil depth. The study uncovered the environmental contribution of \u003cem\u003eAcacia Abyssinica though\u003c/em\u003e further studies are required to explore how and why farmers maintain the trees on farmlands and their divers economic, social and environmental contribution.\u003c/p\u003e","manuscriptTitle":"Evaluation of Soil Fertility Status and Soil Carbon Stock Under Acacia Abyssinica -Based Parkland Agroforestry Practice in Borena District, Amhara Regional State, Ethiopia","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-12-12 03:27:28","doi":"10.21203/rs.3.rs-8194077/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2025-12-18T09:36:39+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-12-18T06:31:31+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-12-17T19:03:34+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-12-17T11:49:42+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-12-16T13:47:10+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-12-15T12:43:38+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"318284810458217945872824418295683401503","date":"2025-12-14T17:12:06+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-12-11T18:02:47+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-12-11T12:35:04+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"37998353361258768984172887821872771318","date":"2025-12-11T12:01:18+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"53570426812536626556877000716235304415","date":"2025-12-11T07:32:15+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"214817812338751337592927234548703795145","date":"2025-12-11T06:59:57+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"127603395101609046546929612788914666505","date":"2025-12-10T10:55:19+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"59633005508655101205301689739959018466","date":"2025-12-10T05:27:45+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"323948326161342010685846648548970482143","date":"2025-12-10T02:30:27+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"188414989896478759064371833828439611707","date":"2025-12-09T08:33:16+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"96298824873228509493051699331897694532","date":"2025-12-09T05:54:22+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"39943816417480940732127290977960039256","date":"2025-12-09T01:44:50+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2025-12-08T20:47:59+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2025-12-04T13:57:23+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2025-12-03T14:00:58+00:00","index":"","fulltext":""},{"type":"submitted","content":"Agroforestry Systems","date":"2025-11-24T13:32:29+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"agroforestry-systems","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"agfo","sideBox":"Learn more about [Agroforestry Systems](http://link.springer.com/journal/10457)","snPcode":"10457","submissionUrl":"https://submission.nature.com/new-submission/10457/3","title":"Agroforestry Systems","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"e4784298-5ab7-44e4-8de4-801bed34571d","owner":[],"postedDate":"December 12th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"in-revision","subjectAreas":[],"tags":[],"updatedAt":"2026-02-08T19:23:29+00:00","versionOfRecord":[],"versionCreatedAt":"2025-12-12 03:27:28","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8194077","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8194077","identity":"rs-8194077","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}