造成今年沙尘天气较多的原因有哪些？生态环境部解读

Core Insights - The Ministry of Ecology and Environment reported a significant increase in sandstorm days in China, with 2060 days recorded from January to April, an increase of 497 days compared to the previous year [1][2] - The main causes of the increased sandstorms include reduced precipitation, higher temperatures, and strong winds, with April experiencing a 43.5% decrease in rainfall compared to the same month last year [1] - The impact of sandstorms on air quality has been substantial, with a 5.1 percentage point loss in the proportion of good air quality days, and a 1.2 percentage point increase in heavy pollution days compared to the previous year [2] Environmental Impact - The proportion of good air quality days in China from January to April was 84.3%, while heavy pollution days accounted for 1.9% [2] - The sandstorm conditions are expected to improve with the onset of summer winds, which will reduce the long-distance transmission of sand and increase precipitation, thereby enhancing the ground's ability to retain sand [2] Future Outlook - The Ministry of Ecology and Environment is committed to implementing pollution control measures to improve air quality, emphasizing the need for both natural and human efforts in combating air pollution [2]