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Related Experiment Video

Updated: May 25, 2026

Watershed Planning within a Quantitative Scenario Analysis Framework

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

Ecological network analysis on global virtual water trade.

Zhifeng Yang¹, Xufeng Mao, Xu Zhao

¹State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China. zfyang@bnu.edu.cn

Environmental Science & Technology

|January 17, 2012

Summary

This summary is machine-generated.

Growing virtual water trade increases global water interdependencies. Ecological network analysis (ENA) reveals complex trade interactions, identifying key contributors and beneficiaries in the global virtual water system.

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Area of Science:

Environmental Science
Hydrology
Ecological Network Analysis

Background:

Global water interdependencies are intensifying due to expanding virtual water trade.
Understanding indirect effects of water trade within global economic systems is crucial.

Purpose of the Study:

To apply Ecological Network Analysis (ENA) to map and analyze global virtual water flow.
To identify control and dependency relationships in international trade of agricultural and livestock products.

Main Methods:

Construction of a global virtual water flow model (1995-1999).
Application of Control Analysis to quantify inter-regional dependencies.
Utilization of Utility Analysis to distinguish beneficiaries and contributors in virtual water trade.

Main Results:

Control and utility analyses effectively characterize mutual trade relationships.
Integral trade relations, considering indirect interactions, differ significantly from direct observations.
The study highlights the complex interplay of regions within the global virtual water network.

Conclusions:

ENA provides a novel framework for depicting interrelations in trade systems.
This approach offers valuable insights for global freshwater resource management.
Further application of ENA can enhance understanding of global water security issues.