Sandstorms are formed by deserts as a source of sand and dust and by wind as a power source. The central asian region has a large number of deserts and semi-arid surfaces, such as gobi. In the spring, the northern region is characterized by higher temperatures, defrozen surfaces and lax soil, and the geographical environment meets the conditions for dust to occur. Our northern part of china is located in the arid and semi-arid regions of central asia, where the main source of sand and dust originates, and where strong cyclones or cold air in the north bring wind and wind systems through sand and sand, it leads to weather under the influence of strong wind, which can lead to sun and sand。
This year, the sand and dust-producing areas of mongolia, north-west china have been exceptionally low in winter and spring, with high spring temperatures and unusually dry weather. Added to the wind from the spring temperate cyclone activity, it is easy to blow dry soil or dust from drought into the north-west and take them to north china and elsewhere。
According to experts, sand and dust weather is in fact a normal weather phenomenon in spring. Statistics show that spring is the most frequent season (march-may), accounting for almost 60 to 70 per cent of the year. Higher temperatures and reduced precipitation as a result of global warming contribute to desertification development and lead to increased dust and sand. Our desertification control has been effective since the “1355” but desertification is a global problem that requires the common governance of the countries of the world and a significant improvement in the overall ecological environment in order to effectively reduce its frequency and intensity。
Experts cautioned that when sand and dust weather strikes, the public should minimize physical depletion and outdoor activity, especially for the elderly, infants and young children, pregnant women, the infirm and respiratory diseases and heart disease. During the sandy weather, masks, glasses, hats and veils may be worn away from high buildings, billboards, etc. Sandstorms are formed by deserts as a source of sand and dust and by wind as a power source. The central asian region has a large number of deserts and semi-arid surfaces, such as gobi. In the spring, the northern region is characterized by higher temperatures, defrozen surfaces and lax soil, and the geographical environment meets the conditions for dust to occur. Our northern part of china is located in the arid and semi-arid regions of central asia, where the main source of sand and dust originates, and where strong cyclones or cold air in the north bring wind and wind systems through sand and sand, it leads to weather under the influence of strong wind, which can lead to sun and sand。
This year, the sand and dust-producing areas of mongolia, north-west china have been exceptionally low in winter and spring, with high spring temperatures and unusually dry weather. Added to the wind from the spring temperate cyclone activity, it is easy to blow dry soil or dust from drought into the north-west and take them to north china and elsewhere。
According to experts, sand and dust weather is in fact a normal weather phenomenon in spring. Statistics show that spring is the most frequent season (march-may), accounting for almost 60 to 70 per cent of the year. Higher temperatures and reduced precipitation as a result of global warming contribute to desertification development and lead to increased dust and sand. Our desertification control has been effective since the “1355” but desertification is a global problem that requires the common governance of the countries of the world and a significant improvement in the overall ecological environment in order to effectively reduce its frequency and intensity。
Experts cautioned that when sand and dust weather strikes, the public should minimize physical depletion and outdoor activity, especially for the elderly, infants and young children, pregnant women, the infirm and respiratory diseases and heart disease. During the sandy weather, masks, glasses, hats and veils may be worn away from high buildings, billboards, etc。
