Articles | Volume 7, issue 2
https://doi.org/10.5194/se-7-457-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-7-457-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
29 Mar 2016
Research article |
| 29 Mar 2016
Delineating small karst watersheds based on digital elevation model and eco-hydrogeological principles
Guang Jie Luo
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
University of Chinese Academy of Sciences, Beijing 100049, China
Institute of Agricultural Ecology and Rural development, Guizhou
Normal College, Guiyang 550018, China
Shi Jie Wang
CORRESPONDING AUTHOR
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
Xiao Yong Bai
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
Xiu Ming Liu
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
An Yun Cheng
Puding Karst Ecosystem Observation and Research Station, Chinese
Academy of Sciences, Anshun 561000, China
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Short summary
For accurately reflecting the eco-hydrological process of the dual structure of the surface and subsurface, we propose a new method for the extraction of small watersheds in karst regions. In this study, we think that the minimum karst watershed has an exit at the corrosion–erosion datum, and the further karst sub-watershed division may cause an eco-hydrological fault. The watersheds delineated by our method accurately reflect the hydrological process in the Sancha River.
For accurately reflecting the eco-hydrological process of the dual structure of the surface and...
