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干热风是河西地区危害农业生产的主要灾害性天气之一。一般干热风年份可使农作物减产5—10％,个别灾年减产高达20％左右。因此,采取措施积极防御干热风危害是河西农业增产的重要一环。
Dry and hot winds are one of the major disastrous weather hazards in agricultural production in Hexi Corridor. General dry hot year crops can cut 5-10%, individual disaster annual cut as high as 20%. Therefore, to take measures to actively prevent dry-hot wind damage is an important part of agricultural production in Hexi.