1基本原理关于品种气候落区的决策，也同其他农业气象决策一样，总是经常和风险联系在一起的，风险是决策活动中不可避免地要碰到的问题。既然如此，就必须对品种─—气候风险问题作出说明，并提出对待风险的基本认识。为此，针对所研究的问题，引进品种的气候风险度的概念，是 1 Rationale The decision-making on the species-specific climate zones is always as often associated with the same risks as other agro-meteorological decisions. Risks are the inevitable problems in decision-making. In that case, a description of the issue of species-climate risk must be made and a basic understanding of the risks to be addressed. To this end, for the study of the problem, the introduction of species climate risk concept is