地下水の流れと流出区画の接続
Reed M Maxwell1, Laura E Condon2
1Integrated GroundWater Modeling Center, Department of Geology and Geological Engineering, Colorado School of Mines, Golden, CO, USA. rmaxwell@mines.edu.
Science (New York, N.Y.)
|July 28, 2016
まとめ
大陸の淡水流の理解は水資源の管理に不可欠です 横の地下水の流れを含めて 植物の発汗を大幅に増加させ,水文モデルを改善します.
科学分野:
- 地球と環境科学
- 水学
- エコロジー
背景:
- 地上水資源の水学的な対応と管理の正確な予測は,大陸規模の淡水流の理解に依存しています.
- 陸上の水平衡の重要な不確実性は,蒸発発散を裸土の蒸発と植物発散に分割することです.
研究 の 目的:
- 統合された水文シミュレーションを用いて大陸規模での透気分断を調査する.
- 地下水の横流が蒸発の分断に与える影響を評価する.
主な方法:
- 植生,土地エネルギープロセス,地表/地下の水文学を組み合わせた統合水文学的シミュレーションを使用しました.
- 水平面の深さ,潜在的熱流量,そして透気分割の関係を分析した.
- 横の地下水流を含んだ結果が 透析区画に与える影響を定量化した.
主要な成果:
- 透気分断は水表の深さと潜在的熱流に関連しています.
- 横の地下水の流れを含めると,発汗分断が47 ± 13%から62 ± 12%に増加した.
- 地下水の横流が陸上の水平衡に果たす重要な役割を強調しています.
結論:
- 地下水の横流は,しばしば地球システムモデルで簡略化または除外され,正確な水学シミュレーションに不可欠です.
- 地下水の横流の計算は,観測と陸上の水の流れのグローバルモデルの間の不一致を調和させることができます.
- この研究は,大陸規模の水資源管理と予測の改善のための欠けているリンクを提供します.
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