Water chemistry and isotopes datasets: Mountainous rivers in Southwest China

SD1 is the Supplementary Dataset for the manuscript entitled 'Geomorphologic controls and anthropogenic impacts on dissolved organic carbon from mountainous rivers: Insights from optical properties and carbon isotopes'.
The data includes the water chemistry, isotopes and catchment characteristic results for spatial river water samples (n = 28) collected in the Yinjiang, Shiqian, and Yuqing rivers in September 2018.