Assessing driving factors of regional water use in production sectors using a structural decomposition method: A case study in Jiangsu Province, China

Lingling Zhang, Zongzhi Wang, Xiaohui Li, Ximing Cai

Research output: Contribution to journalArticlepeer-review

Abstract

A key issue in water resources management in China is the adoption of a total volume control framework of water supply at a regional level corresponding to socioeconomic development. This requires more efficient water demand management in order to achieve a balance between water supply and demand. The purpose of this paper is to conduct a thorough analysis of the water use structure of production sectors in order to identify the major impact factors and thus provide insights for demand management policy design. Taking Jiangsu Province as a case study, we compile a series of extended input-output (I-O) tables at a constant price and establish an I-O structural decomposition model. The major factors leading to change in water use by production sectors (primary, secondary and tertiary) in the Jiangsu Province during five time periods from 1997-2010 are categorized into structure effect, water use efficiency effect, and demand effect for each of three levels: (1) aggregated sectors, (2) sub-aggregated sectors, and (3) individual sectors. Within the study period, the demand effect consistently leads to an increase in water utilization and the increase effect becomes weaker over time, while the other two factors consistently lead to a decrease in water utilization and their dampening effect becomes stronger.

Original languageEnglish (US)
Pages (from-to)262-275
Number of pages14
JournalWater Policy
Volume18
Issue number2
DOIs
StatePublished - Apr 2016

Keywords

  • Extended input-output tables
  • Structure effect
  • Water demand effect
  • Water use efficiency effect
  • Water use of production sector

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Water Science and Technology
  • Management, Monitoring, Policy and Law

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