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	晚霜冻害类型的模糊识别
	吉中礼¹
	西北农业大学基础科学系

摘要:

运用模糊集方法对我国北方冬小麦区晚霜冻进行了分析，建立了晚霜冻害模糊集，以及重、中、轻害型模糊子集。重点分析了4月份晚霜冻对冬小麦的危害等级。

关键词: 晚霜冻害，类型，隶属函数

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基金项目:

The Fuzzy Discernment of spring Frost Types

Abstract:

With the method of fuzzy sets,this paper analyzed spring forst and established the fuzzy sets of spring forst as well as the fuzzy subaggregates of serious,medium,and light spring forsts in winter wheat planting area in north China.Especially,the paper focused its attention on the analysis of the grades of damages caused by spring forst in April to winter wheat.

Key words: spring frost,type,subordinate function