Zhifeng Yang
2 Papers
7 Citations
Zhifeng Yang is an academic researcher. The author has contributed to research in topics: Urban ecosystem & Ecosystem health. The author has an hindex of 1, co-authored 2 publications.
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Papers
Patent
Method for assessing urban ecosystem health based on uncertain measure
Zhifeng Yang,Gengyuan Liu,Bin Chen +2 more
- 24 Feb 2010
TL;DR: In this article, a method for assessing urban ecosystem health by an uncertain measure composite technology, belonging to the scientific field of urban ecological planning, is presented, where a plurality of index factors reflecting 6 health factors of an ecological city are selected and are subject to simplification through Pearson correlativity analysis in SPSS tool, a classification criteria matrix for the uncertain measure is then established by ranking health assessments and checking entropy weight, and health level of the system is further checked.
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2010 International workshop from the International Congress on Environmental Modeling and Software (iEMSs2010) Emergy-based Ecological Economic Evaluation of Beijing Urban Ecosystem
Gengyuan Liu,Zhifeng Yang,Bin Chen +2 more
- 01 Jan 2011
TL;DR: In this article, a series of ratios and indices arising from emergy analysis, including emergy intensity, environmental load ratio and environmental sustainability, were used to analyze economic development in Beijing during the years of 1999 to 2006 and the heavy pressure it has put on the environment.
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