Dissolved organic carbon transport in the Qilian mountainous areas of China

• DOI: 10.1002/hyp.13918
• Publication Date: 2020-09-26T06:31:57Z
• Authors: Guofeng Zhu; Qiaozhuo Wan; Leilei Yong; Qiaoqiao Li; Zhiyuan Zhang; Huiwen Guo; Yu Zhang; Zhigang Sun; Zhuanxia Zhang; Huiying Ma
• Keywords: Meltwater; Water cycle

Abstract The Dissolved Organic Carbon (DOC) content of rivers is the most significant part carbon cycle migration in basin under consideration, and it basis for a comprehensive understanding regional cycle. In this study, we periodically collected samples from four monitoring stations Xiying River Basin Qilian Mountains northern Qinghai‐Tibet Plateau. We calculated fluxes organic within study area have discussed influencing factors DOC concentration these rivers. results showed that: (a) transport flux river seasonal changes. during summer autumn was higher than that winter spring, output accounted approximately 88.3% total annual output. (b) Precipitation runoff has meltwater runoff. Climate factors, river‐water chemical characteristics, frozen‐soil changes effects on flux. (c) Larger causes concentrations Runoff primary means inland basin. upstream to middle downstream sections