CO2は,適度な侵食率で,気象からの引き下げが最大化されます
Aaron Bufe1, Jeremy K C Rugenstein2, Niels Hovius3,4
1Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität München, Munich, 80333, Germany.
まとめ
地球の炭素循環に 影響を与えるのです 適度な侵食は二酸化炭素 (CO2) の排出を最適化し,急速な上昇はCO2の収縮を逆転させ,気候規制のための"侵食最適"を明らかにする.
科学分野:
- 地化学
- 地質学
- 気候科学
背景:
- 上昇と侵食は地質学的な時間における地球規模の炭素循環に大きく影響し,鉱物の化学的気象への曝露を変化させる.
- 侵食率と鉱物の耐候感の間の正確な関係を定量化することは,地球科学における課題です.
研究 の 目的:
- 異なるオロゲンの浸食速度がシリケート浸食 (CO2シンク) と硫化物/炭酸塩浸食 (CO2源) にどのように影響するか調査する.
- 無機二酸化炭素の排出量を最大化するための最適の侵食率を決定し,気候規制への影響を理解する.
主な方法:
- 多様な地質オロゲンにわたる山川からの溶液化学データセットの分析.
- シリケート気象に対する侵食感度と硫化物および炭酸気象に対する比較評価.
主要な成果:
- 異なる"侵食最適度"が特定され,年間約0.07ミリメートルの侵食速度で最大二酸化炭素の引き出しが発生しました.
- 適度な上昇と侵食率を持つ風景は 地球の無機炭素の吸収を強化します
- 加速した上昇と侵食率は二酸化炭素の収縮を減らし,あるいは逆転させることが判明した.
結論:
- この研究は"侵食最適度"という概念を導入することで,山岳建築が炭素循環に及ぼす影響に関する矛盾した見解を調和させています.
- 地質学的な二酸化炭素の流れは,地質学的な活動に反応し,改善された見積もりを可能にします.
- この研究は,地球上の無機炭素の吸収を強化し,地質的な時間尺度で気候を調節する上で,適度な侵食が果たす重要な役割を強調しています.
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