Ecological Network Analysis for a Virtual Water Network

Fang, Delin; Chen, Bin

doi:10.1021/es505388n

Cited by 131 publications

(49 citation statements)

References 69 publications

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“…Input-output analysis is used to describe the complex material flows caused by commodities trade among various economic sectors and to reveal the internal structure of a regional metabolism system [21]. Based on the Leontief and Ghosh framework [14,15,34], a comprehensive model of the imported raw milk powder consumption was established from the perspective of regional material metabolism [25,35]. In this model, the raw milk powder consumed in China imported from other countries is the initial input of the system.…”

Section: Modeling Frameworkmentioning

confidence: 99%

“…Where n = 18 indicates that there are 18 economic sectors in this system, x i is the total output of sector i, z ij stands for the intermediate sales by sector i to sector j, and f i represents the final demand of sector i [25,37]. Based on production-based accounting, the concept of direct consumption intensity was then introduced to account for the IMP consumption for unitary output, as expressed by Equation (2) [38].…”

Section: Modeling Frameworkmentioning

confidence: 99%

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Dynamic Analysis of China’s Imported Raw Milk Powder Consumption

Wang

Lei

2020

Sustainability

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Raw milk powder is one of most important raw materials for dairy processing and manufacturing. In the past decade, the rapid growth of imported raw milk powder (IMP) consumption has brought about significant impacts on China's social economy. For more in-depth analysis of such impacts, this study develops a comprehensive IMP consumption model for China covering 2007-2015 based on the input-output analysis method from the perspective of material metabolism. In detail, material flows and consumption analysis are employed to reveal the direct and indirect IMP consumption and supply of various sectors. Using an innovative hierarchy analysis and network utility analysis, the internal structure of the IMP consumption system and consumption relationships between different sectors are identified. Due to the increasing intensive production activities between the manufacture and processing of the dairy products sector and others, its downstream sectors have grown rapidly and the consumption relationships with others are mostly mutualism. The surge in IMP has caused dramatic changes in consumption relationships, which has the greatest impact on the service sectors, followed by manufacturing sectors. The rapid increase in IMP consumption has put great pressure on the supply and consumption of intermediate products of many sectors.

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Section: Modeling Frameworkmentioning

confidence: 99%

Section: Modeling Frameworkmentioning

confidence: 99%

Dynamic Analysis of China’s Imported Raw Milk Powder Consumption

Wang

Lei

2020

Sustainability

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“…This approach has been applied to natural resource management [58,59], economic systems [60], virtual water networks [61], socio-ecological systems [62], sustainable development [63], food-webs [64,65], river basins [66], urban ecology [67], irrigation management [68], and marine ecosystems [69].…”

Section: Ecological Information-based Network Approachmentioning

confidence: 99%

Advancing Empirical Approaches to the Concept of Resilience: A Critical Examination of Panarchy, Ecological Information, and Statistical Evidence

2016

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Despite its ambiguities, the concept of resilience is of critical importance to researchers, practitioners, and policy-makers in dealing with dynamic socio-ecological systems. In this paper, we critically examine the three empirical approaches of (i) panarchy; (ii) ecological information-based network analysis; and (iii) statistical evidence of resilience to three criteria determined for achieving a comprehensive understanding and application of this concept. These criteria are the ability: (1) to reflect a system's adaptability to shocks; (2) to integrate social and environmental dimensions; and (3) to evaluate system-level trade-offs. Our findings show that none of the three currently applied approaches are strong in handling all three criteria. Panarchy is strong in the first two criteria but has difficulty with normative trade-offs. The ecological information-based approach is strongest in evaluating trade-offs but relies on common dimensions that lead to over-simplifications in integrating the social and environmental dimensions. Statistical evidence provides suggestions that are simplest and easiest to act upon but are generally weak in all three criteria. This analysis confirms the value of these approaches in specific instances but also the need for further research in advancing empirical approaches to the concept of resilience.

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“…Nevertheless, few have paid attentions to the systematic configuration of virtual material flows [35], which should be further explored to illustrate the inner interactions and linkages of PM 2.5 emissions within the socioeconomic system. For this reason, ecological network analysis (ENA), which was first developed by Hannon [36] to analyze the interdependence of each member of an ecosystem upon the others and trace the distribution of both direct and indirect element flows in an ecosystem [37,38], is adopted in this study to investigate the network structure of the embodied PM 2.5 emission flows.…”

Section: Introductionmentioning

confidence: 99%