Title: Application of ecological footprint model on Songnen plain based on emergy analysis
Abstract: A composite model of ecological footprint based on emergy analysis was put forward.Concept of emergy density was introduced into the calculation model to transform all kinds of energy flows in eco-economic systems into the corresponding biological productive units.The ecological footprint of Songnen plain in 2004 was studied.The results showed emergy density was 8.713×1014sej/ha,ecological footprint of biological and energy resources was 4.871 ha/cap,ecological capacity was 2.034 ha/cap,and ecological deficit was 2.837 ha/cap.So we concluded that the ecological environment of Songnen plain was in the state of unsustainable development.The calculation results conformed to that of conventional one.It can be seen that the model based on emergy analysis is more reasonable and objective by overcoming the disadvantages of inconsistency of evaluation standards,poor comparison etc.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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