未来十天北方多晴少雨利于推进夏收夏种 长江中下游降雨偏多及时清沟理渠

Weather Characteristics and Agricultural Impact Analysis - This week (May 25-31, 2025), northern agricultural regions experienced temperatures close to or 1-2°C higher than the historical average, with some areas in the northeast and northwest exceeding 4°C above average [2] - Southern agricultural regions saw temperatures near or 1-2°C below the historical average, with certain areas in Jiangnan, South China, Yunnan, and southern Guizhou being 2-4°C lower [2] - Precipitation in northern regions ranged from 10-50 mm, while parts of Jiangnan, North China, and Yunnan experienced 50-100 mm, and some areas received 100-250 mm, significantly above the historical average [2] - Sunshine hours were generally close to historical averages, with some areas in northeastern Jiangnan and eastern Heilongjiang seeing increases of 30-80% [2][7] Agricultural Production Impact Analysis - In the northeast, favorable light and heat conditions benefited the growth of dryland crops and rice transplanting [8] - The northern winter wheat region had predominantly sunny weather, facilitating the harvesting of mature winter wheat, although rain from May 30 to June 1 may temporarily hinder harvesting in some areas [8] - In the southern regions, heavy rainfall led to flooding in low-lying fields, affecting crops like lychee and mango, while persistent rain hindered crop growth and pest monitoring [9] Future Weather Impact Forecast and Recommendations - The next ten days are expected to have suitable conditions for the growth of corn and soybeans in the northeast, while heavy rainfall in parts of Heilongjiang may cause temporary flooding [10] - Northern regions will experience mostly sunny weather, which is beneficial for harvesting winter wheat and planting summer corn, but high temperatures (35-38°C) from June 5-7 may disrupt wheat maturation [10] - Recommendations include managing dryland crops and water levels in rice fields, ensuring timely harvesting and planting, and maintaining agricultural water infrastructure in southern regions to mitigate flooding risks [11]