"Dry-hot wind" is a disastrous weather phenomenon for agriculture, right?

Dry-hot wind is a kind of weather with high temperature, low humidity and certain wind force, which is disastrous to agriculture. In late spring and early summer, dry and hot winds mainly appear in North China, Northwest China and Huanghuai area.

In dry-hot wind, the temperature increases obviously, the humidity decreases obviously, accompanied by certain wind force, transpiration increases, and root water absorption decreases, which often leads to insufficient filling, serious grain loss and even withering and death of wheat.

Meteorological index of dry-hot wind disaster

The meteorological indicators of dry-hot wind disasters have different research results, such as winter wheat and spring wheat, and they are also inconsistent among regions. Generally speaking, for the high temperature and low humidity type, the daily maximum temperature is 29-34℃ or higher, and the wind speed is 2-3m/s or higher at 14. Severe dry hot wind refers to the daily maximum temperature of 32-36℃, relative humidity of 20-30% or less at 14, and wind speed of 2-4m/s or more at 14.

Heat-withered type after rain: there is a rainfall process within 0/0 day before wheat matures, and it turns sunny and heats up after rain, and the daily maximum temperature reaches above 30℃ within 2-3 days.