Threshold effects of influencing factors on green efficiency of water resources based on environmental regulation and resource endowment: A case study of Heilongjiang Province, China

IF 7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Ecological Indicators Pub Date : 2025-02-25 DOI:10.1016/j.ecolind.2025.113283

Yunxing Wu , Yiting Zhang , Ruirui Long, Zilong Wang, Qiuxiang Jiang

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引用次数: 0

Abstract

The core of green efficiency of water resources (GEWR) improvement is to achieve water efficiency growth based on environmental improvement and resource conservation. To explore the influence of environmental regulation (ER) and resource endowment (RE) on the GEWR, in this paper, the slacks-based measure (SBM) model was used to measure the GEWR in 13 regions in Heilongjiang Province, China. The linear relationship between the GEWR and influencing factors was determined by establishing a panel baseline regression model, and the threshold regression model was used to study the threshold effects of ER and RE. The results showed that: (1) The GEWR in Heilongjiang Province exhibited a fluctuating upward trend from 2003 to 2018 and that of most regions was below 0.5. (2) There is a significant threshold relationship between ER and RE and GEWR. For ER of > 0.727, ER changed from positive to negative impact on GEWR; For RE of > 6.616, the negative impact of RE on GEWR was enhanced, and for RE of > 6.674, the impact of ER on GEWR changed from positive to negative. (3) Economically developed areas, such as Daqing and Harbin, tend to have higher ER; while regions with favorable water resource conditions, such as Mudanjiang and Jixi, exhibit RE above the threshold (6.674). This paper provides theoretical support for the implementation of differentiated ER policies in different REs, and recommendations for efficient water resource utilization in the actual situation are suggested.

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来源期刊

Ecological Indicators 环境科学-环境科学

CiteScore

11.80

自引率

8.70%

发文量

1163

审稿时长

78 days

期刊介绍： The ultimate aim of Ecological Indicators is to integrate the monitoring and assessment of ecological and environmental indicators with management practices. The journal provides a forum for the discussion of the applied scientific development and review of traditional indicator approaches as well as for theoretical, modelling and quantitative applications such as index development. Research into the following areas will be published. • All aspects of ecological and environmental indicators and indices. • New indicators, and new approaches and methods for indicator development, testing and use. • Development and modelling of indices, e.g. application of indicator suites across multiple scales and resources. • Analysis and research of resource, system- and scale-specific indicators. • Methods for integration of social and other valuation metrics for the production of scientifically rigorous and politically-relevant assessments using indicator-based monitoring and assessment programs. • How research indicators can be transformed into direct application for management purposes. • Broader assessment objectives and methods, e.g. biodiversity, biological integrity, and sustainability, through the use of indicators. • Resource-specific indicators such as landscape, agroecosystems, forests, wetlands, etc.