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大棚风害是北方地区春季大棚蔬菜生产的一大气象灾害,常给蔬菜生产带来危害,造成重大经济损失。本文对不同面积、不同造型、不同设置方向的塑料大棚在不同风级下可能承受的最大风压进行了分析,并阐述了大棚风灾发生的机制。文中还根据呼市地区历年大风成灾情况,综合分析了不同风力等级下的大棚风灾机率,并总结了简便易行的大棚风害预测方法。提出了防御大棚风害行之有效的一些办法。
Greenhouses wind damage is a major meteorological disaster of vegetable production in the spring in northern China, which often brings harm to vegetable production and causes significant economic losses. In this paper, the maximum wind pressure of plastic greenhouse under different wind levels in different area, different shapes and different setting directions is analyzed, and the mechanism of wind storm disaster in greenhouses is expounded. According to the wind disaster in Hohhot region over the years, this paper comprehensively analyzed the risk of wind-driven storm in different levels of wind power and summarized the simple and easy method of predicting the wind damage in the greenhouse. Put forward some measures to prevent the greenhouse effect of wind damage.