３月中旬，江淮地区冬小麦进入拔节期，黄淮地区冬小麦处于返青一拔节期，西北、华北地区冬小麦依旧处于返青期。旬内华北大部地区无降水，但由于前期降水较多，大部麦区土壤湿度较适宜，对冬小麦返青生长有利。旬内出现的大风沙尘天气，可能导致土壤水分蒸发加快，造成失墒， In mid-March, winter wheat in Jianghuai region entered jointing stage, winter wheat in Huanghuai region was in the stage of returning to greening, and winter wheat in Northwest and North China was still in turning green stage. In most of North China, there was no precipitation in most areas of North China. However, due to more rainfall in early stage, soil moisture in most wheat areas was more suitable, which was beneficial to the growth of winter wheat. Ten days of dusty dust winds may lead to faster evaporation of soil moisture, resulting in loss of moisture,