Efficiency and driving force assessment of an integrated urban water use and wastewater treatment system: Evidence from spatial panel data of the urban agglomeration on the middle reaches of the Yangtze River

Yang, Zhizhou; Xia, Jun; Zou, Lei; Qiao, Yunfeng; Xiao, Shuai; Dong, Yi; Liu, Chengjian

doi:10.1016/j.scitotenv.2021.150232

Cited by 19 publications

(11 citation statements)

References 29 publications

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“…However, the impact of industrial manufacturing CEP on GWSP was diametrically opposed in the GLB, showing that industrial activities have a greater negative impact on GWS than other CE. This is supported by the fact that industrial manufacturing processes pump large quantities of groundwater for application in the GLB, whereas surface water is dominant in the YRB and PRB [ 36 – 38 ]. Petroleum processing is an important industry for reducing GWSP, particularly in the YRB, PRB, and RB.…”

Section: Resultsmentioning

confidence: 99%

How Human Activities Affect Groundwater Storage

Zhao,

Zhang,

Liu

et al. 2024

Research

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Despite the recognized influence of natural factors on groundwater, the impact of human activities remains less explored because of the challenges in measuring such effects. To address this gap, our study proposes an approach that considers carbon emissions as an indicator of human activity intensity and quantifies their impact on groundwater storage. The combination of carbon emission data and groundwater storage data for 17,152 grid cells over 16 years in 4 typical basins shows that they were generally negatively correlated, whereas both agriculture and aviation had positive impacts on groundwater storage. The longest impact from aviation and agriculture can even persist for 7 years. Furthermore, an increase of 1 Yg CO 2 /km 2 per second in emissions from petroleum processing demonstrates the most pronounced loss of groundwater storage in the Yangtze River Basin (approximately 4.1 mm). Moreover, regions characterized by high-quality economic development tend to have favorable conditions for groundwater storage. Overall, our findings revealed the substantial role of human activities in influencing groundwater dynamics from both temporal and spatial aspects. This study fills a crucial gap by exploring the relationship between human activities and groundwater storage through the introduction of a quantitative modeling framework based on carbon emissions. It also provides insights for facilitating empirical groundwater management planning and achieving optimal emission reduction levels.

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Section: Resultsmentioning

confidence: 99%

How Human Activities Affect Groundwater Storage

Zhao,

Zhang,

Liu

et al. 2024

Research

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“…GDP per capita is measured as GDP divided by population. The higher the GDP per capita, the higher the level of economic development of the prefecture-level city, and the more the government can regulate urban wastewater [10,46], thus affecting UWTE. The industrialisation rate is obtained by calculating the ratio of the output value of the secondary industry to GDP.…”

Section: Methodsmentioning

confidence: 99%

“…Outdated wastewater treatment technology can lead to large amounts of urban wastewater not being treated adequately and promptly [8], and the adoption of advanced technology would directly accelerate the reduction of high concentrations of nutrients, pathogens, and other micro-pollutants in urban wastewater, thereby improving UWTE [9]. For a region, improving UWTE often entails treating as much wastewater as possible to meet required standards at the lowest cost regarding personnel, capital, and equipment at a given level of technology [10]. This requires technical training for wastewater treatment practitioners to maximise capital use and equipment operation efficiency [11].…”

Section: Introductionmentioning

confidence: 99%

Potential benefits of public-private partnerships to improve the efficiency of urban wastewater treatment

Meng

Cheng

et al. 2022

Preprint

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Continuous improvement of urban wastewater treatment efficiency (UWTE) requires effective government supervision and increased private capital. However, it is unknown to what extent this public-private partnership (PPP) can improve the UWTE. We collected data from 1,303 urban wastewater treatment PPP projects in 283 prefecture-level cities in China from 2014 to 2019. These data were analysed using data envelopment analysis (DEA) and Tobit regression model to evaluate the effect of the PPP model on the UWTE. The UWTE was significantly higher in prefecture-level cities that introduced the PPP model in the construction and operation of a wastewater treatment infrastructure, especially those with a feasibility gap subsidy, competitive procurement, privatised operation, and non-demonstration. Furthermore, PPPs’ effect on UWTE were limited by the level of economic development, marketisation, and climatic conditions. This study presents a model for the construction and operation wastewater treatment infrastructure in developing countries lacking public funds.

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“…With the implementation of the "Development Plan for the UAMRYR", it has actively responded to the national regional integration policy and has made substantial progress. However, the UAMRYR is still in the primary stage of development, problems such as high environmental pollution, severe ecosystem degradation, tightening resources constraints, and extensive industrial development have become increasingly prominent [35]. Under such a realistic background, how to accelerate the integration process while improving the UGDE has become more and more urgent and important.…”

Section: Study Areamentioning

confidence: 99%

How Regional Integration Affects Urban Green Development Efficiency: Evidence from Urban Agglomeration in the Middle Reaches of the Yangtze River

Wang

Zhang

et al. 2022

IJERPH

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Unlocking the relationship between regional integration and urban green development efficiency (UGDE) is of great importance for boosting regional high-quality development and promoting sustainable urban development patterns. Although studies have analyzed the spatio-temporal evolution and influencing factors of regional integration and UGDE, the impact of regional integration on UGDE remains untested. In this paper, we construct a conceptual framework to analyze how regional integration can influence UGDE through promoting the factors mobility and optimizing the industrial layout. In addition, we further choose the urban agglomeration in the middle reaches of the Yangtze River (UAMRYR), a rapidly growing urban agglomeration in central China, as a case to investigate the spatial spillover effect of regional integration on UGDE from 2003 to 2017. We quantify the UGDE with a random forest model, then estimate the underlying determinants of the UGDE with a spatial Durbin model. Results indicated that (1) the regional integration level and the UGDE index of the UAMRYR and its three sub-urban agglomerations show an increasing trend; (2) for every 1% increase in the level of regional integration, the level of UGDE will increase by 0.8307%; (3) the impact of regional integration on UGDE has obvious regional heterogeneity; while playing a promoting effect in the Wuhan urban agglomeration and the Changsha-Zhuzhou-Xiangtan urban agglomeration, it shows an inhibitory effect in the Poyang Lake urban agglomeration. We conclude that regional integration in agglomeration areas can accelerate the factors flow and optimize the industrial layout for improving UGDE.

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Efficiency and driving force assessment of an integrated urban water use and wastewater treatment system: Evidence from spatial panel data of the urban agglomeration on the middle reaches of the Yangtze River

Cited by 19 publications

References 29 publications

How Human Activities Affect Groundwater Storage

How Human Activities Affect Groundwater Storage

Potential benefits of public-private partnerships to improve the efficiency of urban wastewater treatment

How Regional Integration Affects Urban Green Development Efficiency: Evidence from Urban Agglomeration in the Middle Reaches of the Yangtze River

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