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cje ›› 2005, Vol. ›› Issue (8): 902-906.

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Emergy analysis of agricultural eco-economic system in Chaoyang City,Liaoning Province

FU Xiao, WU Gang, SHANG Wenyan, LIU Yang, WANG Hongchang, FU Haiwei   

  1. Key Laboratory of Systems Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2004-10-29 Revised:2004-12-24 Online:2005-08-10

Abstract: By the method of emergy analysis,this paper studied the emergy input and output of agricultural eco-economic system in Chaoyang City,semi-arid region of western Liaoning Province,and analyzed the development status of the system through calculation and comparison.The results showed that the local ecological environment was worsened by the excessive utilization of natural resources,which resulted in the severe loss of non-renewable natural resources and the emergy output from the eco-system.Insufficient use of renewable organic energy was the other main cause of the resources waste and environment destruction in the area.

Key words: Banyan, Ecotype, Net photosynthetic rate, Stomatal conductance

CLC Number: