Characteristics of two deep lake cores with the distributions of soil organic carbon (SOC) content, total nitrogen (TN) content, sediment water content (SWC), and calibrated 14 C dating and uncertainty (year BP) of SOC are shown on the right. Lithological units are identified by sediment texture. The BLH-B includes sandy loam, loamy sand, loam, and silt loam along the depth. Photos are taken by M.M. Source data are provided as a Source Data file.
