干旱区生态环境知识资源中心(Arid): The driving force of water resource stress change based on the STIRPAT model: take Zhangye City as a case study

Arid

	The driving force of water resource stress change based on the STIRPAT model: take Zhangye City as a case study
	Tang Xia; Wang Xinyuan; Feng Lei
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2021
卷号	13 期号:4 页码:337-348
英文摘要	A prominent contradiction between supply and demand of water resources has restricted local development in social and economic aspects of Zhangye City, located in a typical arid region of China. Our study quantified the Water Resource Stress Index (WRSI) from 2003 to 2017 and examined the factors of population, urbanization level, GDP per capita, Engel coefficient, and water consumption per unit of GDP by using the extended stochastic impact by regression on population, affluence and technology (STIRPAT) model to find the key factors that impact WRSI of Zhangye City to relieve the pressure on water resources. The ridge regression method is applied to improve this model to eliminate multicollinearity problems. The WRSI system was developed from the following three aspects: water resources utilization (WR), regional economic development water use (WU), and water environment stress (WE). Results show that the WRSI index has fallen from 0.81 (2003) to 0.17 (2017), with an average annual decreased rate of 9.8%. Moreover, the absolute values of normalized coefficients demonstrate that the Engel coefficient has the largest positive contribution to increase WRSI with an elastic coefficient of 0.2709, followed by water consumption per unit of GDP and population with elastic coefficients of 0.0971 and 0.0387, respectively. In contrast, the urbanization level and GDP per capita can decrease WRSI by -0.2449 and -0.089, respectively. The decline of WRSI was attributed to water-saving society construction which included the improvement of water saving technology and the adjustment of agricultural planting structures. Furthermore, this study demonstrated the feasibility of evaluating the driving forces affecting WRSI by using the STIRPAT model and ridge regression analysis.
英文关键词	water resource stress index STIRPAT model driving force analysis water scarcity
类型	Article
语种	英语
收录类别	CSCD
WOS类目	Engineering
CSCD记录号	CSCD:7054386
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377483
作者单位	Tang Xia, Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences;;Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences;;, Lanzhou;;Lanzhou, Gansu;;Gansu 730000;;730000.; Wang Xinyuan, Gansu Monitoring Center for Ecological Resources, Lanzhou, Gansu 730020, China.; Feng Lei, Gansu Computing Center, Lanzhou, Gansu 730030, China.
推荐引用方式 GB/T 7714	Tang Xia,Wang Xinyuan,Feng Lei. The driving force of water resource stress change based on the STIRPAT model: take Zhangye City as a case study[J],2021,13(4):337-348.
APA	Tang Xia,Wang Xinyuan,&Feng Lei.(2021).The driving force of water resource stress change based on the STIRPAT model: take Zhangye City as a case study.Sciences in Cold and Arid Regions,13(4),337-348.
MLA	Tang Xia,et al."The driving force of water resource stress change based on the STIRPAT model: take Zhangye City as a case study".Sciences in Cold and Arid Regions 13.4(2021):337-348.