黄土高原工业用水效率再评价的能值投入产出模型

IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Yu Zhang , Hongbo Zhang , Chongfeng Ren , Chiheng Dang , Congcong Yao , Fengguang Lyu , Shangdong Liu , Xiaowei Zhao
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引用次数: 0

摘要

单位用水量工业增加值(IAV/IWC)被广泛认为是评价一个国家或地区工业用水效率的关键指标,反映了工业部门水资源的成本效益比。从充分资源核算的角度来看,这个指标是否有效地反映了水资源的投入产出绩效仍然不明确,因为它的计算相当简单和初级。本研究引入工业能源足迹的概念,建立基于能值的工业水效益模型,系统阐述工业系统内水资源及其他资源要素的转化路径。此外,本文还提出了水资源负荷指数和产业可持续发展指数两个新的指标,以方便对产业发展的分析和水资源产业的优先投资,从而为区域特别是缺水地区的产业布局战略提供指导。以黄土高原榆林市为例,验证了能值法能够更有效、更科学地量化不同区域工业生产中水资源利用的流量和效率。与以经济效益为主导的传统工业用水效率评价方法相比,基于能值的方法在阐明资源投入产出过程、提高资源配置效率方面具有明显优势。区域地理异质性分析结果表明,以农产品和文化旅游为主的定边、绥德、清建三县在资源利用效率和产业绿色发展方面是最有利于工业可持续增长的地区。相反,衡山县主要依靠煤炭开采和相关能源产业,单位水投入的工业效益回报率较低,因此应排除在大规模水资源投资之外。总的来说,这项工作为理解所有资源投入的工业用水效率提供了一个独特的视角。它拓宽了效率评价的领域,为绿色发展和可持续资源管理提供了重要的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An emergy-based input–output model for reassessing industrial water efficiency in the Loess Plateau, China
The industrial added value per unit of water consumption (IAV/IWC) is widely recognized as a crucial metric for assessing the efficiency of industrial water usage in a country or region, reflecting the cost-benefit ratio of water resources in industrial sectors. From the perspective of full resource accounting, it remains ambiguous whether this indicator effectively reflects the input–output performance of water resources, given its rather simplistic and rudimentary calculation. This study introduces the concept of industrial emergy footprint and develops an emergy-based industrial water benefit model to systematically illustrate the transformation pathways of water resources and other resource elements within the industrial system. In addition, two novel indices—the water resource load index and the industrial sustainability development index—are proposed to facilitate the analysis of industrial development and prioritize investment in water resource industries, thereby offering guidance for regional industrial layout strategies, particularly in water-scarce areas. A case study in Yulin City, located in the Loess Plateau of China, illustrated that the emergy approach more effectively and scientifically quantifies the flow and efficiency of water resource utilization in industrial production across different regions. Compared with traditional industrial water use efficiency evaluation methods dominated by economic benefits, the emergy-based approach offers distinct advantages in elucidating the resource input–output process and enhancing resource allocation efficiency. The findings on regional geographical heterogeneity indicate that Dingbian, Suide, and Qingjian counties, characterized by their reliance on agricultural products and cultural tourism, exemplify the most advantageous areas for sustainable industrial growth in terms of resource usage efficiency and green industrial development. Conversely, Hengshan county, which relies primarily on coal mining and related energy industries, demonstrated a low return on industrial benefits per unit of water input and therefore should be excluded from substantial investments in water resources. Overall, this work offers a unique perspective on understanding industrial water efficiency across all resource inputs. It broadens the area of efficiency evaluation and provides vital insights for green development and sustainable resource management.
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来源期刊
Ecological Indicators
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.
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