立春时节 气象数据显示我国南北季节差异依然显著

Core Viewpoint - The article highlights the significant seasonal differences across China, with the meteorological spring arriving at different times in various regions, despite the traditional start of spring being marked by the solar term "Lichun" [1][3]. Group 1: Meteorological Data - According to the China Meteorological Administration, the standard for meteorological spring is a stable average daily temperature exceeding 10°C for five consecutive days [1]. - The entry into spring varies across regions, with southern areas experiencing spring earlier than northern regions, creating a staggered timeline that spans two months [1][3]. Group 2: Regional Spring Timing - In the South, cities like Haikou, Fuzhou, Guangzhou, and Nanning have already entered meteorological spring, categorized as "no winter zones" [3]. - Cities such as Kunming, Chongqing, and Nanchang are expected to enter spring in February, while the Jiangnan region, including Hangzhou, Wuhan, and Changsha, will see spring in early March [3]. - Northern areas like Shijiazhuang, Tianjin, and Beijing will not experience spring until late March, and regions in the Northwest and Northeast, such as Lanzhou, Shenyang, and Harbin, will have to wait until mid to late April [3]. Group 3: Agricultural and Ecological Implications - The transition into spring is not only a seasonal change but also a crucial signal for agricultural production and ecological changes [3]. - As temperatures rise, soil in northern regions begins to thaw, and precipitation in southern areas is expected to increase, allowing for early planning of spring farming and outdoor activities [3].