Journal of Ecology and Rural Environment ›› 2016, Vol. 32 ›› Issue (1): 133-142.doi: 10.11934/j.issn.1673-4831.2016.01.022

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Emergy Analysis of Agriculture-Livestock-Fisheries Compound Ecological Breeding System

MENG Xiang-hai1, ZHOU Hai-chuan2, ZHANG Yu3, WANG Yu-bo3, MENG Tao1, ZHANG Jun-biao4   

  1. 1. College of Economics Management of Huaiyin Normal University, Huai'an 223001, China;
    2. Research Institute of Forestry Policy and Information, Chinese Academy of Forestry, Bejing 100091, China;
    3. School of Economics and Management, Hubei University of Technology, Wuhan 430070, China;
    4. College of Economics and Management, Huazhong Agricultural University/Hubei Rural Development Research Center, Wuhan 430070, China
  • Received:2015-05-22 Online:2016-01-25 Published:2016-01-27


Ecological breeding is an important way to alleviate pollution from livestock and poultry breeding. Taking the Wuhan Yinhe Pig Farm as an example, the ecological breeding system of this Pig Farm was compared with the pig-only breeding system which used to be in operation before, and evaluated with the emergy analysis method. It was found that the former was much superior to the latter in minimization of resource consumption and environmental loading and in production efficiency. In terms of minimization of resource consumption, the former was 1.77% in emergy self-sufficiency rate, slightly higher than the latter(0.27%), the former was 98.09% in purchased-emergy rate, slightly lower than the latter(99.74%), the former was 5.69% in feedback-emergy rate, higher than the latter(0.00%) and the former was 5.80% in waste recycling rate, higher than the latter(0.00%). In terms of environmental loading, the ecological breeding system was 85.72% in environmental loading rate, lower than the pig-only breeding system(116.04%), and the former was 56.93% in system input renewal rate, higher than the latter(50.09%). And in terms of production efficiency, the former was 2.07 in net-emergy output rate, slightly higher than the latter(1.93). Moreover, the ecological breeding system was significantly higher in economic benefit than the pig-only breeding system.

Key words: emergy analysis, livestock and poultry breeding, agriculture-livestock-fisheries compound ecosystem, ecological breeding

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