Assessment of water resource security in karst area of Guizhou Province, China

Abstract This paper presents the assessment of water resource security in the Guizhou karst area, China. A mean impact value and back-propagation (MIV-BP) neural network was used to understand the influencing factors. Thirty-one indices involving five aspects, the water quality subsystem, water quan...

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Main Author: Liying Liu
Format: Article
Language:English
Published: Nature Portfolio 2021-04-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-87066-5
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author Liying Liu
author_facet Liying Liu
author_sort Liying Liu
collection DOAJ
description Abstract This paper presents the assessment of water resource security in the Guizhou karst area, China. A mean impact value and back-propagation (MIV-BP) neural network was used to understand the influencing factors. Thirty-one indices involving five aspects, the water quality subsystem, water quantity subsystem, engineering water shortage subsystem, water resource vulnerability subsystem, and water resource carrying capacity subsystem, were selected to establish an evaluation index of water resource security. In addition, a genetic algorithm and back-propagation (GA-BP) neural network was constructed to assess the water resource security of Guizhou Province from 2001 to 2015. The results show that water resource security in Guizhou was at a moderate warning level from 2001 to 2006 and a critical safety level from 2007 to 2015, except in 2011 when a moderate warning level was reached. For protection and management of water resources in a karst area, the modes of development and utilization of water resources must be thoroughly understood, along with the impact of engineering water shortage. These results are a meaningful contribution to regional ecological restoration and socio-economic development and can promote better practices for future planning.
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spelling doaj.art-9147e7c1a1964db3abceb2cee3962fb52022-12-21T20:35:27ZengNature PortfolioScientific Reports2045-23222021-04-0111111210.1038/s41598-021-87066-5Assessment of water resource security in karst area of Guizhou Province, ChinaLiying Liu0College of Mathematics and Statistics, Chongqing Technology and Business UniversityAbstract This paper presents the assessment of water resource security in the Guizhou karst area, China. A mean impact value and back-propagation (MIV-BP) neural network was used to understand the influencing factors. Thirty-one indices involving five aspects, the water quality subsystem, water quantity subsystem, engineering water shortage subsystem, water resource vulnerability subsystem, and water resource carrying capacity subsystem, were selected to establish an evaluation index of water resource security. In addition, a genetic algorithm and back-propagation (GA-BP) neural network was constructed to assess the water resource security of Guizhou Province from 2001 to 2015. The results show that water resource security in Guizhou was at a moderate warning level from 2001 to 2006 and a critical safety level from 2007 to 2015, except in 2011 when a moderate warning level was reached. For protection and management of water resources in a karst area, the modes of development and utilization of water resources must be thoroughly understood, along with the impact of engineering water shortage. These results are a meaningful contribution to regional ecological restoration and socio-economic development and can promote better practices for future planning.https://doi.org/10.1038/s41598-021-87066-5
spellingShingle Liying Liu
Assessment of water resource security in karst area of Guizhou Province, China
Scientific Reports
title Assessment of water resource security in karst area of Guizhou Province, China
title_full Assessment of water resource security in karst area of Guizhou Province, China
title_fullStr Assessment of water resource security in karst area of Guizhou Province, China
title_full_unstemmed Assessment of water resource security in karst area of Guizhou Province, China
title_short Assessment of water resource security in karst area of Guizhou Province, China
title_sort assessment of water resource security in karst area of guizhou province china
url https://doi.org/10.1038/s41598-021-87066-5
work_keys_str_mv AT liyingliu assessmentofwaterresourcesecurityinkarstareaofguizhouprovincechina