Geomorphologic controls and anthropogenic impacts on dissolved organic carbon from mountainous rivers: insights from optical properties and carbon isotopes
Shuai Chen,Jun Zhong,Lishan Ran,Yuanbi Yi,Wanfa Wang,Zelong Yan,Si-liang Li,and Khan M. G. Mostofa
Shuai Chen
Department of Geography, The University of Hong Kong, Pokfulam Road, Hong Kong, China
Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, China
Wanfa Wang
College of Resources and Environmental Engineering, Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang, 550025, China
Zelong Yan
School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116081, China
Si-liang Li
Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, China
State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
This study found the source of dissolved organic carbon and its optical properties (e.g., aromaticity, humification) are related to human land use and catchment slope in anthropogenically impacted subtropical mountainous rivers. The study highlights that the combination of dual carbon isotopes and optical properties represents a useful tool in tracing the origin of dissolved organic carbon and its in-stream processes.
This study found the source of dissolved organic carbon and its optical properties (e.g.,...
