Literary stipulations that the summer solstice begins in the northern hemisphere in summer, but the solar radiant heat received by the surface is still more heat than the ground anti-radiation, and the temperature continues to rise, so the summer solstice is not the hottest season of the year. About twenty or thirty days later, it is usually the hottest weather.
After the summer solstice, it enters Futian. The temperature in the north is high, the light is sufficient, the rain increases, the crops grow vigorously, the weeds and pests grow rapidly, and the field management needs to be strengthened. The plateau pastoral area begins the golden season of grass and fertilizer. At this time, the amount of rainwater in the western part of South China has increased significantly, and the distribution of rainfall in the south of China has become more and less in the west. If there is a summer drought, it is generally expected to be lifted at this time.
The summer solstice solar terms are the most abundant solar terms in eastern China in the whole year, and are often controlled by subtropical highs. In order to enhance drought-resistance and capture agricultural harvests, it is an important measure to collect pre-floating rainwater in these areas. Although there are not many large-scale floods in western China in late June, the degree is rather serious. Therefore, special attention should be paid to preparing for flood prevention.
After the summer solstice, the ground is heated intensely, and the air convection is strong. It is often easy to form thunderstorms in the afternoon to evening. This kind of hot thunderstorm has come to abruptly, and the rainfall range is small. People call it summer rain.
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