Emergy-based sustainability assessment on natural resource utilization in 30 Chinese provinces

Abstract China is experiencing rapid development and suffering from resource depletion and increasing environmental emissions. It is necessary to identify the key patterns of resource use in different Chinese regions so that more appropriate solutions can be raised. Under such a circumstance, the aim of this paper is to scientifically measure and evaluate the sustainability of natural resources utilization of 30 Chinese provinces for the year of 2007 by adopting a bio-perspective method-emergy analysis. After referring to the traditional emergy accounting method, several emergy-based indicators were established to evaluate resource flows, structure, efficiency and the overall sustainable level of different Chinese regions. Furthermore, by employing GIS technology, spatial distribution of natural resources was presented to illustrate emergy consumption with various regional characteristics in 30 Chinese provinces, which may help better understand regional disparities of resource utilization. The results show that regions with most emergy consumption include Shanxi (2.07E+24sej) and Shandong (2.07E+24sej), and most regions with higher resource consumption locate in east China, while less developed region Qinghai has the highest sustainability level, with ESI being 44.82. Another key finding is that renewable resources were very important to sustainability development, and a large amount of consumption on non-renewable resources led to higher environmental press on local and surrounding ecosystems. Sustainable resource use can only be achieved by reducing total resource use, encouraging technology innovation, initiating institutional reform and preparing region-specific development strategies.

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