Hydrol. Earth Syst. Sci., 21, 4803–4823, 2017 https://doi.org/10.5194/hess-21-4803-2017 © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Hydrological connectivity from glaciers to rivers in the Qinghai–Tibet Plateau: roles of suprapermafrost and subpermafrost groundwater Rui Ma1,2, Ziyong Sun1,2, Yalu Hu2, Qixin Chang2, Shuo Wang2, Wenle Xing2, and Mengyan Ge2 1Laboratory of Basin Hydrology and Wetland Eco-restoration, China University of Geosciences, Wuhan, 430074, China 2School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China Correspondence to: Rui Ma (
[email protected]) and Ziyong Sun (
[email protected]) Received: 5 January 2017 – Discussion started: 15 February 2017 Revised: 29 May 2017 – Accepted: 7 August 2017 – Published: 27 September 2017 Abstract. The roles of groundwater flow in the hydrologi- 1 Introduction cal cycle within the alpine area characterized by permafrost and/or seasonal frost are poorly known. This study explored Permafrost plays an important role in groundwater flow and the role of permafrost in controlling groundwater flow and thus hydrological cycles of cold regions (Walvoord et al., the hydrological connections between glaciers in high moun- 2012). This is especially true for the mountainous headwaters tains and rivers in the low piedmont plain with respect to of large rivers. In these areas interactive processes between hydraulic head, temperature, geochemical and isotopic data, permafrost and groundwater influence water resource man- at a representative catchment in the headwater region of agement, engineering construction, biogeochemical cycling, the Heihe River, northeastern Qinghai–Tibet Plateau. The and downstream water supply and conservation (Cheng and results show that the groundwater in the high mountains Jin, 2013).