干旱区生态环境知识资源中心(Arid): Overestimation of water pressure by traditional water footprint: Method revision and application

Arid

DOI	10.1016/j.ecolind.2024.112225
	Overestimation of water pressure by traditional water footprint: Method revision and application
	Liu, Jia; Gao, Wei; Zhang, Yuan; Guo, Feng; Peng, Weihua
通讯作者	Gao, W
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2024
卷号	165
英文摘要	The water footprint (WF) is an essential indicator for assessing the pressure of human activities on freshwater resource utilization. The traditional WF model assumes that human water resource occupation comprises a green, blue, and grey WF, which can be linearly summed to the total WF. However, since there are two kinds of human demand for water resources, consumptive occupation and functional occupation, the relationship between them is not exclusive and does not have simple linear addition characteristics. The overlapping relationship between blue and grey WF has long been overlooked in the traditional WF calculation, resulting in a duplicate calculation of water requirement and exaggerating actual water resource demand. This study introduced a new index of blue -grey WF that deducted the overlapping portions of blue and grey WF, thereby calculating a region 's actual freshwater resource utilization. Northern Anhui, an arid region short of water resources with water pollution, was selected as a case study. The traditional WF calculation showed that the multiyear average WF of Northern Anhui was 3.44 x 10 10 m 3 from 2011 to 2020, with the grey, green, and blue WF accounting for 52.59 %, 27.63 %, and 19.78 %, respectively. The blue and grey WF overlapped each other and the blue WF can be fully covered by grey WF, resulting in a total blue -grey WF of 1.81 x 10 10 m 3 , much lower than the sum of blue and grey WF. Based on the revised WF calculation model, the multi -year average WF of Northern Anhui was 2.76 x 10 10 m 3 , decreased by 19.78 %, indicating a severe issue of duplicate calculation of blue and grey WF. The revised WF model could avoid the repeated calculation issues of water resources used by different functions. It provides a more reliable and accurate research method for regional water resources accounting and management decision -making.
英文关键词	Water footprint Grey water footprint Blue water footprint Water resources Revised model Environmental background value
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001251667800001
WOS关键词	RIVER-BASIN ; FOOD NEXUS ; SUSTAINABILITY ; TRADE ; GREEN ; CHINA ; MODEL ; BLUE
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403409
推荐引用方式 GB/T 7714	Liu, Jia,Gao, Wei,Zhang, Yuan,et al. Overestimation of water pressure by traditional water footprint: Method revision and application[J],2024,165.
APA	Liu, Jia,Gao, Wei,Zhang, Yuan,Guo, Feng,&Peng, Weihua.(2024).Overestimation of water pressure by traditional water footprint: Method revision and application.ECOLOGICAL INDICATORS,165.
MLA	Liu, Jia,et al."Overestimation of water pressure by traditional water footprint: Method revision and application".ECOLOGICAL INDICATORS 165(2024).