Spatial evaluation and sensitivity analysis of water resource security in Guizhou Province under climate change

LIU Liying

doi:10.11932/karst2020y35

Volume 39 Issue 5

Oct. 2020

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LIU Liying. Spatial evaluation and sensitivity analysis of water resource security in Guizhou Province under climate change[J]. CARSOLOGICA SINICA, 2020, 39(5): 714-723. doi: 10.11932/karst2020y35

Citation:

LIU Liying. Spatial evaluation and sensitivity analysis of water resource security in Guizhou Province under climate change[J]. CARSOLOGICA SINICA, 2020, 39(5): 714-723. doi: 10.11932/karst2020y35

LIU Liying. Spatial evaluation and sensitivity analysis of water resource security in Guizhou Province under climate change[J]. CARSOLOGICA SINICA, 2020, 39(5): 714-723. doi: 10.11932/karst2020y35

Citation:

LIU Liying. Spatial evaluation and sensitivity analysis of water resource security in Guizhou Province under climate change[J]. CARSOLOGICA SINICA, 2020, 39(5): 714-723. doi: 10.11932/karst2020y35

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Spatial evaluation and sensitivity analysis of water resource security in Guizhou Province under climate change

doi: 10.11932/karst2020y35

LIU Liying

Chongqing Key Laboratory of Social Economy and Applied Statistics/College of Mathematics and Statistics， Chongqing Technology and Business University

Publish Date: 2020-10-25

Abstract

Abstract

It is of great significance to the protection of water resource security in karst areas by the analysis of spatio-temporal evolution of water resource security under the climate change. Using GA-BP neural network model， the spatial differentiation of water resource security in Guizhou Province was evaluated， and its sensitivity to climate change was analyzed. The results show that the water resource security took on obvious spatial heterogeneity in the study area. From 2001 to 2015， the water resource security in Qiannan was always the weakest in province. Guiyang improved the most obviously， and Anshun changed the least. When the rate of change is same， the change of annual average rainfall has the greatest impact on the water resource security， with the increase of 10%， the water resource security index increases by 0.95%， followed by the impact of unit surface water resource change， and the unit groundwater resource change had minimal impact. The most sensitive areas to rainfall change are Zunyi， Bijie， Liupanshui and Qianxinan. The results can provide scientific and technological support for the regulation and development of water resources in Guizhou Province.
- Guizhou Province,
- water resource security,
- spatial evaluation,
- climate change,
- sensitivity

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References(38)

References

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Spatial evaluation and sensitivity analysis of water resource security in Guizhou Province under climate change

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