放牧された牧草地から大気中にアンモニアが流れます
Science (New York, N.Y.)
|August 16, 1974
まとめ
羊の放牧は,牧場から大気中に大量にアンモニアと窒素化合物を放出します. この研究では,これらの排出量を測定し,放牧された生態系における全体的な窒素循環への実質的な貢献を明らかにしました.
科学分野:
- 農業科学 農業科学とは
- 環境科学 環境科学
- 大気化学 大気化学
背景:
- 牧草地は大気中の窒素化合物の重要な源である.
- 窒素の流れを理解することは,農業と環境管理にとって極めて重要です.
- 羊の放牧は,窒素循環の動態に影響する.
研究 の 目的:
- 羊が飼育する牧場からのアンモニアと関連するガス性窒素化合物の流れを定量化するために.
- これらの排出が,窒素の総売上高に与える影響を評価する.
- 大気流量測定のためのマイクロ気象学的技術を活用する.
主な方法:
- 大気の流れを測定するためにマイクロ気象学的技術を使用しました.
- 夏の終わりに羊が牧草する牧草地に焦点を当てた.
- 3週間にわたって収集されたデータです.
主要な成果:
- 1ヘクタールあたり0.26kgの平均日々の流量密度を測定しました.
- 大気中の主要な排出物として,アンモニアおよび関連ガス化合物を特定した.
- 牧草の窒素の売上高に対するこれらの排出量の実質的な寄与を定量化しました.
結論:
- マイクロ気象学的測定は,牧草地の窒素排出量に関する貴重なデータを提供します.
- 羊の放牧は,大気中の窒素負荷に大きく貢献しています.
- これらの発見は,農業システムにおける窒素サイクルを理解し,管理するために不可欠です.
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