Seasonal riverine export of dissolved carbon affected by active layer freeze-thaw cycles in headwater streams of the Qinghai-Tibet Plateau permafrost region

Chunlin Song1, Wang Genxu1 and Tianxu Mao2, (1)IMHE Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China, (2)Guizhou University, Guiyang, China