摘要
针对节水灌溉方案的优选问题,从集对分析理论出发,采用评价方案与最优方案、最劣方案和中间方案的欧氏距离来建立节水灌溉方案评价的联系度表达式,根据经验取值法和均匀取值法确定联系度表达式中的不确定系数i值,计算联系数,据此来评价节水灌溉方案的优劣。经实例应用表明,该方法思路清晰、计算简单,评价结果可靠,可以用做节水灌溉方案的优选评价。
Aiming at the problem of optimal selection of water saving irrigation schemes,according to the theory of Set Pair Analysis,the formula of connection degree based on Euclidean distances among the evaluating scheme,ideal optimal scheme,ideal middle scheme,ideal pessimum scheme,is established in this paper.According to the methods of experience for value and average for the value,the value of uncertainty coefficient i is determined,then the connection number is calculated to select optimal scheme.The application example shows that the method is logic,simple and reliable,and it can be used as an assessment method for the selection of the preferred scheme of water saving irrigation.
出处
《节水灌溉》
北大核心
2010年第12期81-83,共3页
Water Saving Irrigation
基金
长江大学科研发展基金项目(CJ2009-06)
关键词
节水灌溉
方案优选
集对分析
欧氏距离
联系度
联系数
water saving irrigation
optimal choice of schemes
set pair analysis
Euclidean distance
connection degree
connection number
