Bess B. Ward

Dec 20, 2024 | science.org | Weiyi Tang |John Tracey |Jenna Lee |Amal Jayakumar |Bess B. Ward |Naomi Intrator | +2 more

Research ArticleOCEANOGRAPHYINTRODUCTIONEstuaries link the land and ocean environment, providing critical ecosystem functions and services such as the removal of excess nutrients and support for biodiversity and fisheries. However, estuaries are severely perturbed by anthropogenic activities (1–3). For example, excess nutrient inputs from agriculture and wastewater cause eutrophication, harmful algal blooms, and hypoxia (4, 5).

Dec 12, 2023 | nature.com | Xianhui S. Wan |Li N Liu |Hui Shen |Min Xu |Yao Zhang |Bess B. Ward

AbstractThe heavily human-perturbed coastal oceans are hotspots of nitrous oxide (N2O) emission to the atmosphere. The processes underpinning the N2O flux, however, remain poorly understood, leading to large uncertainties in assessing global N2O budgets. Using a suite of nitrogen isotope labeling experiments, we show that multiple processes contribute to N2O production throughout the estuarine-coastal gradient, sustaining intensive N2O flux to the atmosphere.

Jul 19, 2023 | nature.com | Irene Zhang |Xin Sun |Amal Jayakumar |Bess B. Ward

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