流況条件特異的流出特性を考慮した基底流量分離・汚染負荷推定ツールの開発と適用評価
Yeonji Jeong1, Jeongho Han2, Seoro Lee1
1Program in Earth Environmental System Science & Engineering, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea.
Journal of contaminant hydrology
|January 11, 2026
まとめ
WAPLE4システムは、直接流出と基底流量を正確に分離し、流域の汚染負荷計算を改善します。流況条件特異的パラメータの適用により、基底流量が7%減少し、汚染物質負荷も大幅に減少しました。
科学分野:
- 水文学
- 環境科学
- 水資源管理
背景:
- 正確な基底流量分離は、流域の水文学と水質を理解するために不可欠です。
- 既存の方法では、流況条件特異的な流出特性を考慮することが困難な場合があります。
研究 の 目的:
- 正確な基底流量分離と汚染負荷計算のためのWAPLE4システムの導入と検証。
- 流況条件特異的パラメータが水文学的および汚染負荷推定に与える影響の評価。
主な方法:
- 水文学的流出特性を組み込んだWAPLE4システムの開発。
- 韓国の4つの主要流域へのWAPLE4システムの適用。
- 基底流量分離の精度と汚染負荷(TP、TN)の削減の分析。
主要な成果:
- WAPLE4システムは、流況条件特異的パラメータを使用した際に、平均7%の減少で基底流量分離の精度が向上したことを示しました。
- 汚染負荷分析では、総リン(TP)と総窒素(TN)の負荷がそれぞれ10.92%と10.56%大幅に減少しました。
- このシステムは、異なる流域特性を効果的に反映します。
結論:
- WAPLE4システムは、流況条件特異的な流出特性を考慮することにより、基底流量と汚染負荷の計算精度を向上させます。
- この改善された定量化は、効果的な流域管理戦略の開発に不可欠なデータを提供します。
- 本研究の結果は、水質問題に対処するためのより良い意思決定を支持します。
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