関連する実験動画

Updated: Sep 9, 2025

Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading
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Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading

Published on: March 6, 2014

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N2O濃度に関する総の規制メカニズム:ドンティング湖の事例研究

Jie Liang1, Yi Li1, Weixiang Li1

  • 1College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.

Water research
|August 30, 2025
PubMed
まとめ

総リン (TP) は湖の窒素酸化物 (N2O) の排出に大きく影響する. TPの増加は微生物のN2O減少を促進し,微生物のコミュニティと窒素循環遺伝子を変化させることで排出量を低下させます.

キーワード:
環境要因機能的な遺伝子微生物コミュニティN ((2) Oの濃度総リン量

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The Phosphorus Cycle01:21

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.
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Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
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