河口近海N2O的分布特征及微生物代谢驱动机制

doi:10.11978/2024229

Abstract

Abstract:

Estuarine and coastal waters, serving as critical interfaces between terrestrial and marine ecosystems, play a pivotal role in the biogeochemical cycling of nitrous oxide (N₂O), a potent greenhouse gas with significant impacts on global climate change. This review synthesizes current knowledge on the distribution patterns of N₂O in estuarine and coastal regions, the key microbial metabolic pathways driving N₂O emissions—including nitrification, nitrifier denitrification, incomplete denitrification, and coupled nitrification-denitrification—as well as the methodologies for quantifying N₂O production and consumption. Additionally, we examine the environmental factors influencing N₂O emissions. A deeper understanding of N₂O biogeochemical cycling in these waters is crucial for developing effective strategies to mitigate N₂O emissions and their contribution to global warming.

Key words: microbial nitrogen metabolism, N₂O, biogeochemical cycle, estuarine and coastal waters

CLC Number:

HONG Yiguo, ZHANG Baoshan, WU Jiapeng, LONG Aimin. Distribution characteristics and microbial metabolic driving mechanisms of N₂O in estuarine and coastal waters[J].Journal of Tropical Oceanography, 2025, 44(4): 1-13.

Figures/Tables 6

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Distribution characteristics and microbial metabolic driving mechanisms of N₂O in estuarine and coastal waters

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Distribution characteristics and microbial metabolic driving mechanisms of N₂O in estuarine and coastal waters