Original research article
This study investigated seasonal water quality characteristics and changes in agricultural watersheds of Jeollanam-do from 2021 to 2024 and analyzed their relationships with farmland proportion and precipitation using the Canadian Council of Ministers of the Environment Water Quality Index (CCME-WQI). The results showed that during periods of high rainfall, concentrations of COD and SS significantly increased, and water quality deterioration was more pronounced in areas with higher farmland proportions. Strong negative correlations were observed between CCME-WQI and key water quality indicators such as COD, T-N, and T-P, indicating their significant contribution to water quality degradation. These findings suggest that CCME-WQI is a suitable tool for integrated water quality assessment in agricultural watersheds and may can serve as a basis for analyzing pollution sources and establishing effective management strategies under changing agricultural environments. For sustainable water quality management, further investigation of non-point pollution sources and long-term monitoring is recommended.
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10.7745/KJSSF.2025.58.2.240- Publisher :Korean Society of Soil Science and Fertilizer
- Publisher(Ko) :한국토양비료학회
- Journal Title :Korean Journal of Soil Science and Fertilizer
- Journal Title(Ko) :한국토양비료학회 학회지
- Volume : 58
- No :4
- Pages :465-473
- Received Date : 2025-08-01
- Revised Date : 2025-10-16
- Accepted Date : 2025-10-21
- DOI :https://doi.org/10.7745/KJSSF.2025.58.4.465
Korean Journal of Soil Science and Fertilizer
