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Decomposition Analysis of Water Footprint Changes in a Water-limited River Basin: a Case Study of the Haihe River Basin, China : Volume 10, Issue 12 (02/12/2013)

By Zhi, Y.

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Book Id: WPLBN0004011606
Format Type: PDF Article :
File Size: Pages 25
Reproduction Date: 2015

Title: Decomposition Analysis of Water Footprint Changes in a Water-limited River Basin: a Case Study of the Haihe River Basin, China : Volume 10, Issue 12 (02/12/2013)  
Author: Zhi, Y.
Volume: Vol. 10, Issue 12
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Yin, X. A., Yang, Z. F., & Zhi, Y. (2013). Decomposition Analysis of Water Footprint Changes in a Water-limited River Basin: a Case Study of the Haihe River Basin, China : Volume 10, Issue 12 (02/12/2013). Retrieved from http://hawaiilibrary.net/


Description
Description: State Key Laboratory of Water Environmental Simulation, School of Environment, Beijing Normal University, Beijing, China. Decomposition analysis of water footprint (WF) changes, or assessing the changes in WF and identifying the contributions of factors leading to the changes, is important to water resource management. However, conventional studies focus on WF from the perspective of administrative region rather than river basin. Decomposition analysis of WF changes from the perspective of the river basin is more scientific. To address this perspective, we built a framework in which the input–output (IO) model and the Structural Decomposition Analysis (SDA) model for WF could be implemented in a river basin by computing IO data for the river basin with the Generating Regional IO Tables (GRIT) method. This framework is illustrated in the Haihe River Basin (HRB), which is a typical water-limited river basin. It shows that the total WF in the HRB increased from 4.3 × 1010 m3 in 2002 to 5.6 × 1010 m3 in 2007, and the agriculture sector makes the dominant contribution to the increase. Both the WF of domestic products (internal) and the WF of imported products (external) increased, and the proportion of external WF rose from 29.1% to 34.4%. The technological effect was the dominant contributor to offsetting the increase of WF; however, the growth of WF caused by the economic structural effect and the scale effect was greater, so the total WF increased. This study provides insights about water challenges in the HRB and proposes possible strategies for the future, and serves as a reference for WF management and policy making in other water-limited river basins.

Summary
Decomposition analysis of water footprint changes in a water-limited river basin: a case study of the Haihe River Basin, China

Excerpt
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