Evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow

Water provision service is crucial for human society to survive and develop. It is essential to evaluate the importance of sub-watersheds, based on their different capacities to provide water resources to manage an entire watershed. Previous studies have assessed the importance of the sub-watershed...

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Autores principales:	Xiao Li, Wei Sun, Dou Zhang, Jingling Huang, Dehuan Li, Ning Ding, Jingfeng Zhu, Yujing Xie, Xiangrong Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Water provision service Supply and demand Spatial flow The importance index The Qiantang River Basin Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/2bcadc5b0a754991bfdb696e88c2c201
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spelling	oai:doaj.org-article:2bcadc5b0a754991bfdb696e88c2c2012021-12-01T04:52:34ZEvaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow1470-160X10.1016/j.ecolind.2021.107745https://doaj.org/article/2bcadc5b0a754991bfdb696e88c2c2012021-08-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21004106https://doaj.org/toc/1470-160XWater provision service is crucial for human society to survive and develop. It is essential to evaluate the importance of sub-watersheds, based on their different capacities to provide water resources to manage an entire watershed. Previous studies have assessed the importance of the sub-watershed by analyzing its supply and/or demand of water provision service. However, few studies have considered the influence of the spatial flow. In this study, we proposed an assessment framework that combined supply, demand, and spatial flow of water provision service. The Qiantang River Basin in China was selected as our study area. The importance of the sub-watershed was evaluated using the importance index, which was calculated using the spatial flow and the accumulative beneficial population of the water provision service. The spatial flow was simulated using a simplified water flow model, and the accumulative beneficial population was based on the direction and path of water provision service spatial flow. The results indicated that 60% of sub-watersheds with “very high” importance were located in the middle and lower reaches of Xin'an River and Lan River. Due to the internal consumption and sink of the water provision service, the upstream area may provide less spatial flow and may have a lower level of importance. When limited by the direction and scope of water provision service delivery, some sub-watersheds with high surpluses and without external beneficiaries were of low importance. Our study emphasizes the quantity and routing of water provision service delivery and enhances the understanding of the capacity of the sub-watershed for providing water provision service.Xiao LiWei SunDou ZhangJingling HuangDehuan LiNing DingJingfeng ZhuYujing XieXiangrong WangElsevierarticleWater provision serviceSupply and demandSpatial flowThe importance indexThe Qiantang River BasinEcologyQH540-549.5ENEcological Indicators, Vol 127, Iss , Pp 107745- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Water provision service Supply and demand Spatial flow The importance index The Qiantang River Basin Ecology QH540-549.5
spellingShingle	Water provision service Supply and demand Spatial flow The importance index The Qiantang River Basin Ecology QH540-549.5 Xiao Li Wei Sun Dou Zhang Jingling Huang Dehuan Li Ning Ding Jingfeng Zhu Yujing Xie Xiangrong Wang Evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow
description	Water provision service is crucial for human society to survive and develop. It is essential to evaluate the importance of sub-watersheds, based on their different capacities to provide water resources to manage an entire watershed. Previous studies have assessed the importance of the sub-watershed by analyzing its supply and/or demand of water provision service. However, few studies have considered the influence of the spatial flow. In this study, we proposed an assessment framework that combined supply, demand, and spatial flow of water provision service. The Qiantang River Basin in China was selected as our study area. The importance of the sub-watershed was evaluated using the importance index, which was calculated using the spatial flow and the accumulative beneficial population of the water provision service. The spatial flow was simulated using a simplified water flow model, and the accumulative beneficial population was based on the direction and path of water provision service spatial flow. The results indicated that 60% of sub-watersheds with “very high” importance were located in the middle and lower reaches of Xin'an River and Lan River. Due to the internal consumption and sink of the water provision service, the upstream area may provide less spatial flow and may have a lower level of importance. When limited by the direction and scope of water provision service delivery, some sub-watersheds with high surpluses and without external beneficiaries were of low importance. Our study emphasizes the quantity and routing of water provision service delivery and enhances the understanding of the capacity of the sub-watershed for providing water provision service.
format	article
author	Xiao Li Wei Sun Dou Zhang Jingling Huang Dehuan Li Ning Ding Jingfeng Zhu Yujing Xie Xiangrong Wang
author_facet	Xiao Li Wei Sun Dou Zhang Jingling Huang Dehuan Li Ning Ding Jingfeng Zhu Yujing Xie Xiangrong Wang
author_sort	Xiao Li
title	Evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow
title_short	Evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow
title_full	Evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow
title_fullStr	Evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow
title_full_unstemmed	Evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow
title_sort	evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/2bcadc5b0a754991bfdb696e88c2c201
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Evaluating water provision service at the sub-watershed scale by combining supply, demand, and spatial flow

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