Emergy Evaluation of a Production and Utilization Process of Irrigation Water in China
Joint Authors
Chen, Dan
Luo, Zhao-Hui
Chen, Jing
Kong, Jun
She, Dong-Li
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-02
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Sustainability evaluation of the process of water abstraction, distribution, and use for irrigation can contribute to the policy of decision making in irrigation development.
Emergy theory and method are used to evaluate a pumping irrigation district in China.
A corresponding framework for its emergy evaluation is proposed.
Its emergy evaluation shows that water is the major component of inputs into the irrigation water production and utilization systems (24.7% and 47.9% of the total inputs, resp.) and that the transformities of irrigation water and rice as the systems’ products (1.72E+05 sej/J and 1.42E+05 sej/J, resp.; sej/J = solar emjoules per joule) represent their different emergy efficiencies.
The irrigated agriculture production subsystem has a higher sustainability than the irrigation water production subsystem and the integrated production system, according to several emergy indices: renewability ratio (%R), emergy yield ratio (EYR), emergy investment ratio (EIR), environmental load ratio (ELR), and environmental sustainability index (ESI).
The results show that the performance of this irrigation district could be further improved by increasing the utilization efficiencies of the main inputs in both the production and utilization process of irrigation water.
American Psychological Association (APA)
Chen, Dan& Luo, Zhao-Hui& Chen, Jing& Kong, Jun& She, Dong-Li. 2013. Emergy Evaluation of a Production and Utilization Process of Irrigation Water in China. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-1012300
Modern Language Association (MLA)
Chen, Dan…[et al.]. Emergy Evaluation of a Production and Utilization Process of Irrigation Water in China. The Scientific World Journal No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-1012300
American Medical Association (AMA)
Chen, Dan& Luo, Zhao-Hui& Chen, Jing& Kong, Jun& She, Dong-Li. Emergy Evaluation of a Production and Utilization Process of Irrigation Water in China. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-1012300
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1012300