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Journal of Environmental Accounting and Management 5(2) (2017) 105--116 | DOI:10.5890/JEAM.2017.06.003

Jiamin Pan$^{1}$, Hao Zhang$^{1}$, Xueqi Wang$^{1}$, Gengyuan Liu$^{1}$,$^{2}$

$^{1}$ State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China

$^{2}$ Beijing Engineering Research Center for Watershed Environmental Restoration & Integrated Ecological Regulation, Beijing 100875, China

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Abstract

In this paper, we updated the existing emergy analysis framework and calculation methods of The Global National Environmental Accounting Database (NEAD) based on the fast-developed raw global environmental database and the replacements of the nations and regions. Latest GIS grid coverages for renewable flows, the processes of updating raw data necessary for tabular synthesis, and filtrating energy conversion rates and unit emergy values for translating physical flows to emergy units have been updated and standardized. This calculation methods framework incorporates a standardized template within which primary flows are calculated and aggregated into the emergy summary flows and indices. It could be used to formalize data sources, detail line items, calculate energy conversion calculations, and assign Unit Emergy Values (UEVs) to flows and will strengthen the power and credibility of comparative national emergy analysis.

Acknowledgments

This work is supported by the Fund for the Projects of Sino-America International Cooperation and Exchanges of NSFC (No. 51661125010), Creative Research Groups of the National Natural Science Foundation of China (No. 51121003), the National Key Research and Development Program of China (No. 2016YFC0503005), the National Natural Science Foundation of China (Grant No. 41471466, 71673029).

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