A Multi-Objective Input–Output Linear Model for Water Supply, Economic Growth and Environmental Planning in Resource-Based Cities

Abstract

Water resource and environment capacity have become two of the most important restrictions for sustainable development in resource-based cities whose leading industries are the exploitation and processing of resources. Taking Ordos in China as an example, this article constructs an integrated model combining a multi-objective optimization model with input-output analysis to achieve the tradeoffs between economic growth, water utilization and environmental protection. This dynamic model includes socioeconomic, water supply-demand, water quality control, air quality control, energy consumption control and integrated policy sub-models. These six sub-models interact with each other. After simulation, this article proposes efficient solutions on industrial restructuring by maximizing the Gross Regional Product of Ordos from 394.3 in 2012 to 785.1 billion RMB in 2025 with a growth rate of 6.4% annually; and presents a water supply plan by maximizing the proportion of reclaimed water from 2% to 6.3% through sewage treatment technology selection and introduction, and effective water allocation. Meanwhile, the environmental impacts are all in line with the planning targets. This study illustrates that the integrated modeling is generic and can be applied to any region suffering uncoordinated development issues and can serve as a pre-evaluation approach for conducting early warning research to offer suggestions for government decision-making.

Analysis of metals mining sector linkage on national economic

“…Fields along the lines show the allocation of output, whilst fields along the column shows the use of inputs in the production process (BPS, 2016). Analysis of the model input-output table (I-O Table), called as linear model of Leontief inputoutput (Ke et al, 2016), is a tool that will be used to look at the linkages among economic sectors. According to Gaspersz (1992), Leontief I-O Table of an industry carries out production activities that receive input from several sources of raw materials, as well as from the industry itself.…”

Study on Spatial and Temporal Distribution Characteristics of Coordinated Development Degree among Regional Water Resources, Social Economy, and Ecological Environment Systems

“…As an important natural resource, water resources are widely used in human production and living activities. Water resources are not only basic natural resources, but also strategic economic resources and ecological control factors [13,14,15]. Previously, plenty of studies focused on the coordinated development of the water resources system and the social economy system.…”

An Analysis of a Water Use Decoupling Index and Its Spatial Migration Characteristics Based on Extracting Trend Components: A Case Study of the Poyang Lake Basin

“…There have also been other studies that have focused on water-economy relationship, including multi-objective-based input-output models [32], complete decomposition models [33], the cointegration test, the Granger causality test [34], etc. However, the results produced by multi-objective-based input-output models might be inaccurate because of the difficulty in precisely characterizing the associated socioeconomic system and water resource system.…”