题名：Nitrogen removal by eutrophic coastal wetlands accomplished with CH₄ emission reduction

来源：Journal of Cleaner Production

发表年代：2022

作者：Hualei Yang, Xuechu Chen*, Chunsong Zhang, Mingming Zhao, Xinmeng Zhao, Danielle C. Perry, Jianwu Tang**

Abstract：Coastal wetlands remove nitrogen via denitrification while emitting methane (CH₄). This study reveals a linear correlation (R²=0.87) between CH₄ emissions and denitrification rates in eutrophic wetlands. The denitrifying anaerobic methane oxidation (DAMO) process, involving nitrite- and nitrate-dependent pathways, utilizesCH₄ as a carbon source for nitrogen removal. Field experiments show tidal cycles drive nitrogen removal through physical interception (30% NOx⁻ diffusion) and microbial denitrification (90% NOx⁻ reduction). The coexistence of DAMO bacteria (Methylomirabilis) and archaea (Methanoperedens) highlights CH₄-driven nitrogen cycling in coastal ecosystems.

Nitrogen removal by eutrophic coastal wetlands accomplished with CH₄ emission reduction.pdf