Study on the adaptability and stability of MICP improved vegetation slope protection

Study on the adaptability and stability of MICP improved vegetation slope protection | 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 Article Study on the adaptability and stability of MICP improved vegetation slope protection Chongpeng Bu, Yonghua Wang, Wei Huang, Lina Yang, Xiaohui Zhang, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7530092/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 13 Mar, 2026 Read the published version in Scientific Reports → Version 1 posted 11 You are reading this latest preprint version Abstract In recent years, microbial induced calcium carbonate precipitation (MICP) and vegetation slope protection technology have been proven to be feasible. However, since the process of MICP-improved vegetation slope protection is affected by factors such as vegetation type, the research on the adaptability and stability of roots in the root-soil complex is still not in-depth. Therefore, this paper carried out plant adaptability and erosion resistance tests and triaxial tests on MICP-solidified root-soil complexes to explore the changing laws of vegetation germination adaptability, erosion resistance and soil mechanical properties under the action of MICP solidification. The results showed that: (1) the germination potential of tall fescue decreased from 72.3% to 40.7% with concentration and from 66% to 26.5% with number of times; that of bahiagrass decreased from 11.4% to 2.2% and from 8.5% to 1.2%. Low concentrations have little impact, the number of times has a greater impact than the concentration, and osmotic stress is obvious; (2) Microorganisms can enhance the ability to resist erosion. After 6 sprayings, the erosion rate is only 1.5%. Microorganisms combined with plants can significantly inhibit continuous rainfall; (3) The stress-strain curve of MICP-reinforced root-soil composite shows an upward trend and is a strain hardening type. Roots can promote the formation of calcium carbonate, cement the soil and fill the pores, so that the c and φ values of the MICP-reinforced root-soil complex are positively correlated with the calcium carbonate and root content, and the C value increases more significantly; (4) MICP technology has a great influence on the root The contribution rate of soil composite strength is very important, and its MICP strength contribution rate is as high as 80% under the optimal root content. MICP can effectively improve the adaptability of vegetation slope protection technology and improve the stability of slopes. Therefore, it can be considered that MICP has important significance for improving the stability of slopes by improving vegetation slope protection technology. Biological sciences/Ecology Earth and environmental sciences/Ecology Earth and environmental sciences/Environmental sciences Biological sciences/Plant sciences MICP root-soil complex adaptability anti-scouring performance mechanical properties Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 13 Mar, 2026 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 29 Dec, 2025 Reviews received at journal 11 Dec, 2025 Reviewers agreed at journal 11 Nov, 2025 Reviews received at journal 08 Oct, 2025 Reviewers agreed at journal 25 Sep, 2025 Reviewers agreed at journal 24 Sep, 2025 Reviewers invited by journal 24 Sep, 2025 Editor assigned by journal 24 Sep, 2025 Editor invited by journal 24 Sep, 2025 Submission checks completed at journal 23 Sep, 2025 First submitted to journal 22 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. 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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-7530092","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":520396113,"identity":"929fd148-efbe-41f1-8631-135f7f68ab43","order_by":0,"name":"Chongpeng Bu","email":"","orcid":"","institution":"China JK Institute of Engineering Investigation and Design Co., Ltd","correspondingAuthor":false,"prefix":"","firstName":"Chongpeng","middleName":"","lastName":"Bu","suffix":""},{"id":520396114,"identity":"71b6445a-510b-4222-b705-fc5498b14938","order_by":1,"name":"Yonghua Wang","email":"","orcid":"","institution":"China JK Institute of Engineering 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However, since the process of MICP-improved vegetation slope protection is affected by factors such as vegetation type, the research on the adaptability and stability of roots in the root-soil complex is still not in-depth. Therefore, this paper carried out plant adaptability and erosion resistance tests and triaxial tests on MICP-solidified root-soil complexes to explore the changing laws of vegetation germination adaptability, erosion resistance and soil mechanical properties under the action of MICP solidification. The results showed that: (1) the germination potential of tall fescue decreased from 72.3% to 40.7% with concentration and from 66% to 26.5% with number of times; that of bahiagrass decreased from 11.4% to 2.2% and from 8.5% to 1.2%. Low concentrations have little impact, the number of times has a greater impact than the concentration, and osmotic stress is obvious; (2) Microorganisms can enhance the ability to resist erosion. After 6 sprayings, the erosion rate is only 1.5%. Microorganisms combined with plants can significantly inhibit continuous rainfall; (3) The stress-strain curve of MICP-reinforced root-soil composite shows an upward trend and is a strain hardening type. Roots can promote the formation of calcium carbonate, cement the soil and fill the pores, so that the c and φ values of the MICP-reinforced root-soil complex are positively correlated with the calcium carbonate and root content, and the C value increases more significantly; (4) MICP technology has a great influence on the root The contribution rate of soil composite strength is very important, and its MICP strength contribution rate is as high as 80% under the optimal root content. MICP can effectively improve the adaptability of vegetation slope protection technology and improve the stability of slopes. Therefore, it can be considered that MICP has important significance for improving the stability of slopes by improving vegetation slope protection technology.\u003c/p\u003e","manuscriptTitle":"Study on the adaptability and stability of MICP improved vegetation slope protection","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-10-07 13:06:49","doi":"10.21203/rs.3.rs-7530092/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2025-12-29T12:02:56+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-12-11T10:24:21+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"207317285491835823105965181719230384120","date":"2025-11-12T02:34:25+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-10-09T02:02:51+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"138946979660928988085095389728818536120","date":"2025-09-25T07:44:04+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"15946207531859891924388385699491011319","date":"2025-09-25T03:05:31+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2025-09-25T02:44:30+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2025-09-25T02:38:51+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2025-09-24T19:41:57+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2025-09-23T06:43:40+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2025-09-23T02:18:42+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"15e5826c-bf46-4def-ab67-74a6e34e3731","owner":[],"postedDate":"October 7th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[{"id":55312604,"name":"Biological sciences/Ecology"},{"id":55312605,"name":"Earth and environmental sciences/Ecology"},{"id":55312606,"name":"Earth and environmental sciences/Environmental sciences"},{"id":55312607,"name":"Biological sciences/Plant sciences"}],"tags":[],"updatedAt":"2026-03-16T16:13:27+00:00","versionOfRecord":{"articleIdentity":"rs-7530092","link":"https://doi.org/10.1038/s41598-026-40222-1","journal":{"identity":"scientific-reports","isVorOnly":false,"title":"Scientific Reports"},"publishedOn":"2026-03-13 15:59:16","publishedOnDateReadable":"March 13th, 2026"},"versionCreatedAt":"2025-10-07 13:06:49","video":"","vorDoi":"10.1038/s41598-026-40222-1","vorDoiUrl":"https://doi.org/10.1038/s41598-026-40222-1","workflowStages":[]},"version":"v1","identity":"rs-7530092","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7530092","identity":"rs-7530092","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}