Hou et al. (2025): Ecological regime shifts weaken sedimentary carbon sequestration in shallow Lake Liangzi
Jinglin Hou, Qi Lin, Jiasheng Zhang, Shixin Huang, Yuan Jin, Yanhua Wang, Haibo He, Pierre Taillardat, David Taylor, Ke Zhang, Michael E. Meadows, IN: Water Research, https://doi.org/10.1016/j.watres.2025.125173
Lakes, though covering a minor fraction of Earth’s land surface, are disproportionately important in global carbon cycling and greenhouse gas emissions. Yet how the capacity of sedimentary carbon burial responds to ecological regime shifts remains poorly understood. Here, the authors reconstruct two centuries of organic carbon (OC) dynamics in Lake Liangzi, a large shallow lake in the middle Yangtze basin, by integrating sediment OC burial rates, stable carbon isotope-based source apportionment (MixSIAR), fluorescence characterization of dissolved organic matter (DOM) using EEM-PARAFAC, and molecular-level analysis using FT-ICR MS.