Environmental Efficiency and Random Convergence Analysis of Large-scale Pig Breeding in China *. (June 2020)
- Record Type:
- Journal Article
- Title:
- Environmental Efficiency and Random Convergence Analysis of Large-scale Pig Breeding in China *. (June 2020)
- Main Title:
- Environmental Efficiency and Random Convergence Analysis of Large-scale Pig Breeding in China *
- Authors:
- Zhang, Ruixin
Fu, Xinhong
Li, Jianqiang - Abstract:
- Abstract: As the scale of live pigs in China continues to accelerate, the agricultural non-point source pollution caused by it is becoming increasingly serious. In this paper, the SBM-Undesirable model was used to measure the environmental efficiency of pig breeding in different scales in year 2008-2017, and the efficiency was analyzed by random convergence. Results show: from the overall average, the environmental efficiency of pig breeding in China is medium-scale, large-scale and small-scale in order, and the three-scale pig breeding has random convergence characteristics. From the perspective of different regions, with the environmental efficiency as a judge, the three scales of potential development zones perform well, and only the small-scale pig breeding shows random convergence; large-scale mode in key development zones performs well with no signs of random convergence, has poor stability, while the other two remain stable at a low level; small and medium-scale modes perform better in moderate development zones, all showing no features of random convergence; the three scales in constrained development zones don't perform well, and all remain stable at a lower level. Based on the above results, this paper put forward differentiated policies for different scales and regions to promote healthy and green development of pig scale breeding.
- Is Part Of:
- Journal of physics. Volume 1549:Number 2(2020)
- Journal:
- Journal of physics
- Issue:
- Volume 1549:Number 2(2020)
- Issue Display:
- Volume 1549, Issue 2 (2020)
- Year:
- 2020
- Volume:
- 1549
- Issue:
- 2
- Issue Sort Value:
- 2020-1549-0002-0000
- Page Start:
- Page End:
- Publication Date:
- 2020-06
- Subjects:
- Physics -- Congresses
530.5 - Journal URLs:
- http://www.iop.org/EJ/journal/1742-6596 ↗
http://ioppublishing.org/ ↗ - DOI:
- 10.1088/1742-6596/1549/2/022061 ↗
- Languages:
- English
- ISSNs:
- 1742-6588
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5036.223000
British Library DSC - BLDSS-3PM
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- 25325.xml