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A multi-method approach to characterize water quality and nitrogen sources in coastal-plain rivers
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DOI：10.1016/j.wroa.2026.100546.png)
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Abstract
En 中文
• An integrated framework combining SOM, probabilistic CWQI, and isotope tracing was developed • SOM identified five distinct spatio-temporal water quality clusters across the watershed • Probabilistic CWQI method determined each cluster’s pollution grade probability • SOM’s improvement in MixSIAR-based source apportionment method accuracy confirmed • Municipal sewage contributed 62.3–85.5% DIN across different clusters • The framework supports zone-specific pollution control strategies in coastal-plain rivers
Keywords:
Self-organizing map
Monte Carlo simulation
Stable isotopes
Nitrogen source apportionment
Coastal-plain rivers
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