loading page

Refined understanding of hydrological connectivity among lakes on the Qiangtang Plateau
  • +3
  • Yunmei Li,
  • Chang Huang,
  • Ninglian Wang,
  • Yun Chen,
  • Shiqiang Zhang,
  • Hongtao Duan
Yunmei Li
Northwest University
Author Profile
Chang Huang
Northwest Unversity

Corresponding Author:[email protected]

Author Profile
Ninglian Wang
Northwest University
Author Profile
Yun Chen
Land and Water, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
Author Profile
Shiqiang Zhang
Northwesst University
Author Profile
Hongtao Duan
Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences
Author Profile


Accurate catchment delineation and lake connectivity assessment are crucial for understanding hydrology and managing water resources. By employing the Forest And Buildings removed Copernicus DEM (FABDEM) and a 2015 lake dataset, this study updated the delineations of 798 lake catchments on the Qiangtang Plateau. From these lake catchments, 442 whole catchments were identified based on inter-lake connectivity, with 140 encompassing multiple lakes. Based on the cascading structures of lakes identified through graph theory, we categorized these multi-lake whole catchments into three types: 86 single-linkage, 31 dendritic, and 23 hub-and-spoke, providing a refined understanding of the hierarchical organization within the lake networks. Projected reductions to 387 whole catchments by 2030 and 366 by 2050 due to global warming underscore the dynamic impacts of climate change on lake connectivity. This research provides crucial insights for managing water resources in endorheic basins under changing climatic conditions.
07 May 2024Submitted to ESS Open Archive
10 May 2024Published in ESS Open Archive