Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/nhess-2018-10
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article
19 Apr 2018
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).
Study On The Driving Mechanism Of Hydrologic Drought In Karst Basin Based On Landform Index: A Case Study of Guizhou, China
Zhonghua He1,2, Hong Liang1, Zhaohui Yang3, and Xinbo Zeng3 1School of Geographic and Environment Science, Guizhou Normal University, Guiyang, Guizhou, 550001, China
2School of Geography and Environment Sciences, Guizhou Normal University/State Engineering Technology Institute for Karst Desertfication Control, Guiyang, Guizhou, 550001, China
3Department of Water Resources of Guizhou Province, Guiyang, Guizhou, 510275, China
Abstract. In recent years, hydrological droughts in the Karst Basins have become more frequent and have caused serious ecological and environmental problems. This paper took the karst drainage basin of Guizhou, China as the study area to analyze the geomorphologic distribution and the temporal-spatial variations of hydrological droughts. The results indicated that (1) the rainfall and its variation during drought periods had very limited impacts on the hydrological droughts in karst drainage basins; (2) During 2000–2010, the hydrological droughts in Guizhou Province increased year by year, and the inter-annual variation of hydrological droughts in Guizhou had obvious stage characteristics. The overall regional distribution of hydrological drought severity in Guizhou is severe in the south and light in the north, severe in the west and light in the east. (3) From the overall distribution of the landform types, the mountains, hills and basins have a certain impact on hydrologic droughts, but the impacts are insignificant. From the distribution of single landform types, the influences on hydrological droughts are particularly significant in high-medium mountains, deep-high hills and high basins, and where are also relatively light areas for hydrologic drought severity, While the relatively serious areas of that in the low mountains, shallow-low hills and low basins.
Citation: He, Z., Liang, H., Yang, Z., and Zeng, X.: Study On The Driving Mechanism Of Hydrologic Drought In Karst Basin Based On Landform Index: A Case Study of Guizhou, China, Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2018-10, in review, 2018.
Zhonghua He et al.
Zhonghua He et al.
Zhonghua He et al.

Viewed

Total article views: 160 (including HTML, PDF, and XML)

HTML PDF XML Total BibTeX EndNote
131 24 5 160 3 2

Views and downloads (calculated since 19 Apr 2018)

Cumulative views and downloads (calculated since 19 Apr 2018)

Viewed (geographical distribution)

Total article views: 160 (including HTML, PDF, and XML)

Thereof 159 with geography defined and 1 with unknown origin.

Country # Views %
  • 1

Saved

Discussed

Latest update: 22 May 2018
Publications Copernicus
Download
Short summary
We analyzed the geomorphologic distribution and the temporal-spatial variations of hydrological droughts. The rainfall and its variation during drought periods had very limited impacts on the hydrological droughts in karst drainage basins. During 2000–2010, the hydrological droughts in Guizhou Province increased year by year, and the inter-annual variation of hydrological droughts in Guizhou had obvious stage characteristics.
We analyzed the geomorphologic distribution and the temporal-spatial variations of hydrological...
Share