Health Assessment of River Ecosystem in the Lower Jinsha River Basin Using an improved comprehensive fuzzy evaluation method

Health Assessment of River Ecosystem in the Lower Jinsha River Basin Using an improved comprehensive fuzzy evaluation method | 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 Health Assessment of River Ecosystem in the Lower Jinsha River Basin Using an improved comprehensive fuzzy evaluation method Keqin You, Enlong Liu, Daizhong Cheng This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6945265/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 12 Nov, 2025 Read the published version in Environmental Monitoring and Assessment → Version 1 posted 4 You are reading this latest preprint version Abstract Cascade hydropower development significantly affects river hydrodynamics and water environments, posing substantial challenges to river ecosystem health. With ecosystem security emerging as a critical environmental concern, accurate health assessment of river ecosystem has become paramount for implementing precise restoration and management strategies. Current researches on river ecosystem health assessment are mainly focused on major river systems such as the Nujiang, Lancangjiang, Yangtze, and upper Yellow River, less on the medium and small rivers with intensive hydropower station. Moreover, existing studies usually focus on single dams and rivers, lack systematic evaluation frameworks, and neglect integrated watershed-scale analyses. This study presents an improved comprehensive fuzzy evaluation method to assess ecosystem health in the Jinsha River Basin. A assessment indicator system is developed, including four criterion layers (i.e., basin, water, biology, and social service), and five sub-criteria (i.e., morphological integrity, hydrological integrity, chemical integrity, biological integrity, and social service sustainability) for evaluating the Yibin section's river ecosystem health. Result shows that the comprehensive ecosystem health assessment results for eight rivers in the Yibin section of Jinsha River Basin presents a healthy ecological status. Sub-criterion evaluation revealed distinct performance variations, with morphological integrity showing relatively poorer conditions (average score of 69.98) compared to notably higher chemical integrity (average score of 91.5). Based on these ecosystem health assessment findings, the study further identified key influencing factors affecting river ecosystems in the Yibin section and developed targeted conservation strategies and management recommendations. River health assessment Indicator System Improved Fuzzy Comprehensive Evaluation Method Jinsha River Cascade Hydropower Station Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 12 Nov, 2025 Read the published version in Environmental Monitoring and Assessment → Version 1 posted Editorial decision: Revision requested 28 Jun, 2025 Editor assigned by journal 26 Jun, 2025 Submission checks completed at journal 26 Jun, 2025 First submitted to journal 21 Jun, 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. 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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-6945265","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":477841577,"identity":"a4776501-68bb-4d3a-beb0-79c547e0b844","order_by":0,"name":"Keqin You","email":"","orcid":"","institution":"Sichuan University","correspondingAuthor":false,"prefix":"","firstName":"Keqin","middleName":"","lastName":"You","suffix":""},{"id":477841578,"identity":"77c84d5a-f36a-4014-bcc3-74157f77e1ca","order_by":1,"name":"Enlong Liu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA2ElEQVRIiWNgGAWjYBACPmYQWQDE7A1gAcYGQlrYwFoMgJjnALFaGGBaJBKI1cLOY/i4wMAmTz7y+cPPPAw2shsOMD97gN9hPMbGMwzSig1v5xhL8zCkGW84wGZuQECLmTSPweHEjbNzgGyGw4kbDvCwSRDQYv4brGXm8WdALf+J0mLGDNIyX4IByGA4QIwWtmKgw9ISN/DkGEvOMUg2nnmYzQyvFn7+wxs/81TYJM5vP/7ww5sKO9m+483P8GqBA4MDYBKImYlSDwTyDcSqHAWjYBSMghEHAMG2PCkwtipKAAAAAElFTkSuQmCC","orcid":"","institution":"Sichuan University","correspondingAuthor":true,"prefix":"","firstName":"Enlong","middleName":"","lastName":"Liu","suffix":""},{"id":477841579,"identity":"48181aa6-3980-454d-8278-3ef2e4043a36","order_by":2,"name":"Daizhong Cheng","email":"","orcid":"","institution":"Upper Changjiang River Bureau of Hydrological and Water Resources Survey, Changjiang River Water Resources Commission","correspondingAuthor":false,"prefix":"","firstName":"Daizhong","middleName":"","lastName":"Cheng","suffix":""}],"badges":[],"createdAt":"2025-06-21 13:38:19","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6945265/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6945265/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s10661-025-14778-w","type":"published","date":"2025-11-12T15:58:26+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":96105110,"identity":"5ade9828-4487-45a9-920a-48ab90d3a82f","added_by":"auto","created_at":"2025-11-17 16:08:46","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":682009,"visible":true,"origin":"","legend":"","description":"","filename":"RevisedManuscript6.24.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6945265/v1_covered_3eef6f6a-d328-4de0-8fe9-d82ef3a8f743.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"\u003cp\u003eHealth Assessment of River Ecosystem in the Lower Jinsha River Basin Using an improved comprehensive fuzzy evaluation method\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"environmental-monitoring-and-assessment","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"emas","sideBox":"Learn more about [Environmental Monitoring and Assessment](http://link.springer.com/journal/10661)","snPcode":"10661","submissionUrl":"https://submission.nature.com/new-submission/10661/3","title":"Environmental Monitoring and Assessment","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"River health assessment, Indicator System, Improved Fuzzy Comprehensive Evaluation Method, Jinsha River, Cascade Hydropower Station","lastPublishedDoi":"10.21203/rs.3.rs-6945265/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6945265/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eCascade hydropower development significantly affects river hydrodynamics and water environments, posing substantial challenges to river ecosystem health. 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