干热风使麦田动量、热量、水汽量的湍流交换骤增、而且持续，破坏了农田正常的热量平衡、水分平衡条件，导致作物有机合成的紊乱，造成减产。为减轻其危害，要重视选用抗干热风的小麦品种，同时，要改善农田小气候。 Dry and hot winds make the turbulent exchange and extinction of momentum, heat and water vapor in cropland increase sharply, and continue to destroy the normal heat balance and water balance conditions of farmland, resulting in the disorder of crop organic synthesis and the decrease of production. In order to reduce its harm, we must pay attention to the selection of wheat varieties resistant to dry and hot wind, meanwhile, to improve the microclimate of farmland.