RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2017, Vol. 26 >> Issue (09): 1378-.doi: 10.11870/cjlyzyyhj201709010

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EMERGY ANALYSIS OF THE DEVELOPMENT OF NONFERROUS METALS IN JIANGXI PROVINCE UNDER THE BACKGROUND OF ECOLOGICAL CIVILIZATION CONSTRUCTION

JIA Shu-xian1,HUANG Jian-bai1,2,ZHONG Mei-rui1,2   

  1. (1.School of Business,Central South University,Changsha 410083,China;2.Institute of Metal Resources Strategy,Central South University,Changsha 410083,China)
  • Online:2017-09-20

Abstract: The development of nonferrous metals not only promotes economic growth, but also brings many environmental problems, and the evaluation how minerals developing effect on ecological systems has been research hotspots recently. The emergy analysis is able to evaluate the real value of energies in different classes and levels. In this study, emergy analysis is applied to evaluate how the nonferrous metals development effect on the ecological environment in Jiangxi Province, China. The total amount of emergy, the system’s input and output, and the ecological values between 2009 and 2013 were calculated separately, and the changing trend of emergy efficiency and ecological efficiency index were analyzed, thus the ecological compensation standards can be set up due to above emergy analysis. The results showed the self-sufficient emergy of the Jiangxi’s nonferrous metal developments was about 0.65 during the studied period (2009-2013), the energy investment ratios fell into a low level and varied between 0.23-0.31, the net energy yield ratio exhibited rising up earlier but falling later. The Environmental loading abilities of the province are high and the lowest loading ratio was 138.01, but the sustainable development indicators were very low, which only accounted between 0.02 and 0.03, and the ecological compensation index fluctuated slightly between 62%-69%. All those results revealed that Jiangxi Province’s nonferrous metal mineral exploitation relied heavily on local non-renewable resources. Although the production efficiency was little high, the current producing and utilizing activities have exceeded the environment’s tolerance range and the whole system’s development could not be sustainable. To improve the environmental qualities, the ecological compensation between 2009 and 2013 should be assigned with 1.45×109, 1.49×109, 2.06×109, 2.59×109 and 1.82×109 Chinese Yuan, respectively.

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