Raw sediment analysis results

The analyses in this file form the bases for subsequent construction of the sediment-related ecological variables Sd = sediment type, and Sc = weight percent fraction of sand, which are ordinal.

本文件中的分析为后续构建沉积物相关生态变量（sediment-related ecological variables）奠定了基础，其中Sd代表沉积物类型（sediment type），Sc代表沙粒质量百分比占比（weight percent fraction of sand），二者均为有序分类变量。