摘要
干热风天气是高温、低湿和伴有一定风力的大气干旱现象。它对我国西北、特别是青海的冬、春小麦和大麦的高产稳产影响很大，是麦类作物生产中的主要气象灾害之一。受于热风危害，一般减产５—１０％，严重时减产２０—３０％。本文论述了干热风的成因、类型及危害机理．重点讨论了干热风的防御对策。对减轻干热风危害，有现实的经济意义。
The dry-hot wind, which is the drought phenomena with high tempera- ture, low moisture and specipied wind. It influences the high and steady yield of winter and spring wheat and hacley in north-west area of China, especially in Qinghai province. It' s one of the main meteorological destroy to wheat crop. Due to the influence of the dry-hot wind. the drop of output dropped generally about 5-10% ever move 20-30%in serious. This paper introduced about the dry-hot wind' s formation. kind and harm principle, and mainly discuss the countermeasure of resistance. It has realitic and economic sence to guiding wheat' s pro duction and reducing its karm.
出处
《青海科技》
1997年第1期23-26,共4页
Qinghai Science and Technology
关键词
干热风
危害
防御
Dry-Hot Wind Harm Resistance.
