From February 5 to 7, large-scale snowfall successively occurred in Ningxia from south to north. The accumulated snowfall in Yongning County, the southern part of Yanchi County, the western part of Tongxin County, the southern part of Shapotou District, most of Haiyuan County and most of Guyuan City amounts to 5 to 10 mm, of which, the accumulated snowfall in the southern part of Haiyuan County, the southern part of Xiji County and the central part of Pengyang County and most of Jingyuan County amounts to more than 10 mm, while that in other regions is generally less than 5 mm, The maximum snowfall in Liupanshan Town is 15.4mm.
The snowfall covers a wide area and the snowfall in the central and southern regions is large, which effectively increases the soil moisture content, which is beneficial to the soil moisture increase and conservation, the green vegetation growth in spring, the safe winter of winter wheat in the central and southern mountains, and to a certain extent, reduces the level of fire weather in the forest grassland area. Low temperature after snow can inhibit the overwintering of field pathogens and eggs, and effectively reduce the number of disease sources and insect sources.
Affected by the cold and snowy weather, some sections of the expressway are covered with snow and ice and have low visibility, which has a negative impact on road traffic and the public's return trip after the festival. The reduced light, low temperature and high humidity in the greenhouse of agricultural facilities cause the vegetable crops to be sluggish and frozen, which has a great impact on the listing of vegetables, melons and fruits. In areas with heavy snowfall, the shed is easily damaged due to thick snow cover. In addition, the cold weather has a certain impact on the ice flood of the Yellow River, which needs further attention in the future. (Ningxia Meteorological Observatory: Gao Yan)
