What season is the forest fully dyed?

The forest is dark in autumn. The original meaning is that the layers of trees on the mountain turn red after frost, just like being dyed. In autumn, in nature, the qi of yin and yang begins to change, the yang is gradually declining, the yin is gradually growing, the climate turns from hot to cold, and everything is born with cold and gradually declines. This is the season of alternating hot and cold. With the gradual decline of temperature, the leaves of many deciduous perennial plants will gradually change color, wither and fall off, leaving only branches for winter.

Temperature:

Beginning of autumn doesn't mean that the hot summer will be over. beginning of autumn is still in the heat period, and the heat will not come out until the second solar term in autumn, and the weather is still very hot in early autumn. The so-called heat is in volts. According to the calculation method of three volts, beginning of autumn is often still in the period of three volts until the heat, so the weather is still very hot in early autumn, and it will generally cool after the Millennium solar terms.

The watershed of summer heat is in autumn, not at the turn of summer and autumn. The climate in autumn is divided into two stages, the early autumn is sultry, and it tends to be dry and cool after the Mid-Autumn Festival. According to the average climate temperature of modern scholar Zhang Baokun, there are four seasons in a year. The index is that the average temperature is lower than 10℃ in winter, higher than 22℃ in summer, and 10~22℃ in spring and autumn respectively.