The Optimal Selection of Irrigation Systems Based on the Evidence Theory

Abstract:

The optimal selection of irrigation systems is a complex process that contains lots of uncertainty factors, such as the influence of natural resources, technical level, the environment, economic and society conditions. With analyzing the present water resources utilization of Ordos City and considering the available research achievement of water-saving irrigation, this paper select technology, resources, environment, economy, society as the primary indexes that contains its 28 subordinate secondary indexes, establish irrigation systems optimization model, then determine the appropriate value of decision under the effects of different indexes and establish a corresponding knowledge matrix. In the last, DS combination rule is used to calculate the optimal value of different knowledge matrixs basic probability assignment, and the research results shows that the optimal value of Ordos city from high to low in turn are reeling sprinkler irrigation, large clockwise sprinkler irrigation, mobile sprinkler irrigation, low pressure pipe irrigation.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 2194-2200
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.2194
• Online since: September 2013
• Authors: Zi Long Liao*, Yin Hui Long, Yong Fu Wei, Zhong Xiao Guo
• Keywords: DS Combination Rule, Evidence Theory, Optimal Selection of Irrigation Systems

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