大気中のアンモニア: 植物の葉によって吸収される
Science (New York, N.Y.)
|February 18, 1972
まとめ
植物の葉は,低い大気レベルでも,空気からかなりの量のアンモニアを吸収します. アンモニアの吸収率は毎日変動し,植物種によって異なりますが,窒素の肥沃性には影響はありません.
科学分野:
- 植物生理学 植物生理学
- 環境科学 環境科学
- 大気化学 大気化学
背景:
- アンモニアは重要な大気汚染物質と栄養素です.
- 植物と空気の相互作用を理解することは,環境科学と農業科学にとって極めて重要です.
研究 の 目的:
- 植物葉によるアンモニアの吸収を環境大気濃度で定量化するために.
- 植物によるアンモニアの吸収に影響を与える要因を調査する. 日間変動,種の違い,窒素の肥沃性など.
主な方法:
- 密閉された成長室を利用して,単一の植物の苗の上に流れる空気流におけるアンモニア濃度の変化を監視しました.
- 植物吸収率を決定するために,空気流からアンモニアの消失速度を測定しました.
主要な成果:
- 植物葉は,低濃度でも大気中のアンモニアを大幅に吸収することを示しました.
- アンモニアの吸収率は,昼間大幅な変動を示した.
- 吸収率は,異なる植物種によって異なる.
- 種内の窒素の生育レベルは,アンモニア吸収率に有意な影響を及ぼさなかった.
結論:
- 植物の葉は,大気からアンモニアを取り除くのに重要な役割を果たします.
- 日常パターンと種別特性は,植物によるアンモニア吸収の重要な決定因子である.
- 植物における窒素の利用可能性は,空気からのアンモニア吸収を制限する要因ではないようです.
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