Large alpine deep lake as a source of greenhouse gases: A case study on Lake Fuxian in Southwestern China.

Freshwater lakes are recognized as potential sources of greenhouse gases (GHGs) that contribute to global warming. However, the spatiotemporal patterns of GHG emissions have not been adequately quantified in large deep lakes, resulting in substantial uncertainties in the estimated GHG budgets in global lakes. In this study, the spatial and seasonal variability of diffusive GHG (CO, CH, and NO) emissions from Lake Fuxian located on a plateau in Southwestern China were quantified.

Spatial and seasonal variability of nitrous oxide in a large freshwater lake in the lower reaches of the Yangtze River, China.

Aquatic ecosystems are recognized as a source of NO in accordance with the flux estimations of rivers and estuaries; however, limited research has been conducted on large lakes. In this study, we report the annual NO dynamics of a large eutrophic freshwater lake located in the subtropical zone of East China. The dissolved NO concentrations in Lake Chaohu were observed to be between 8.