ベトナム中部における水域間の水移転と塩分浸透による累積的な影響
Binh Quang Nguyen1, Sameh A Kantoush2, Thinh Hung Nguyen3
1The University of Danang - University of Science and Technology, 54 Nguyen Luong Bang, Danang, Viet Nam.
The Science of the total environment
|August 22, 2025
まとめ
越南 の 淡水 は 塩水 の 侵入 に 脅かさ れ て いる
科学分野:
- 水学
- 環境科学
- 水資源管理
背景:
- 塩水の浸透は 淡水資源に対する世界的な脅威であり 経済的にも環境的にも 損害をもたらしています
- 下流流の河川流域は,特に水の利用可能性と質の低下に脆弱です.
研究 の 目的:
- 越南のVu Gia Thu Bon川流域における塩分浸透の範囲と要因を評価する.
- 上流のダム運営と水の移転が水供給と灌に与える影響を分析する.
主な方法:
- 土壌と水の評価ツール (SWAT) モデルを利用した.
- 水の量と質の長期のフィールド観測を分析した.
- 水質変化と塩分侵入を調査するために統計的方法を使用した.
主要な成果:
- 降水量が増加したにも関わらず,流出量は最大36.9%減少し,水位も減少した.
- 乾燥期には塩分値が頻繁に超えられ,淡水供給に影響を与えました.
- 海面上昇は水質 (pH,DO,COD,BOD,大腸菌) を悪化させ,作物の収穫に影響を与えた.
結論:
- 統合された水資源管理は 塩分浸透を緩和するために不可欠です
- 適応的な貯水池操作とリアルタイム塩度モニタリングが推奨されます.
- 発見は塩分管理のための意思決定支援ツールの開発を支援します.
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