Since ancient times, I feel sad and lonely every autumn. I think autumn is more than spring.
Sunset and lonely Qi Fei, autumn waters and sky are the same color.
Autumn wind gives birth to Wei water, and leaves are all over Chang 'an.
Crows fell on the moon, crowed coldly, slept on maple trees, and slept in fishing lanes by the river.
My heart is like the thick frost of thousands of mountains, and the autumn leaves are dyed red.
Expand knowledge:
Autumn (MBTH) is the third season among the four seasons, and it is the transition season from summer to winter. Autumn in the northern hemisphere is from September to 165438+ 10, and autumn in the southern hemisphere is from March to May.
China traditionally takes "beginning of autumn" in the 24 solar terms as the starting point of autumn and ends with "beginning of winter". Entering autumn means that rainfall and storms tend to decrease or decrease, and everything in nature begins to mature from lush.
Traditionally, China takes "beginning of autumn" in 24 solar terms as the starting point of autumn. The word "autumn" consists of the word "grain" and the word "fire", indicating the maturity of the five grains. After entering autumn, in nature, everything begins to mature from lush. Its climate began to change from rainy and humid in summer to dry and rainy in autumn.
The four seasons in China are often divided according to the change of temperature, using the "average temperature" of modern scholar Zhang Baokun.
According to the weather average temperature method, there are two main criteria to judge autumn.
First, the average daily temperature for five consecutive days is between 10℃-22℃, which can be regarded as autumn and become a "short mark".
Second, the moving average temperature of five consecutive groups is lower than 22℃. A set of moving average temperatures refers to the average temperature of the day plus the average temperature of the previous four days divided by 5 to get the moving average temperature of five days, which is a "sliding scale". Autumn divided by temperature means cool weather.
Autumn (16) has entered autumn since beginning of autumn. Entering autumn means that precipitation and humidity are at the turning point of the year and tend to decline or decrease; In nature, everything begins to grow from lush to rich and mature.
Autumn is the harvest season, and many plants mature in autumn. In autumn, in nature, the qi of yin and yang begins to change, the yang is gradually declining, the yin is gradually flourishing, the climate turns from hot to cold, and everything is born with cold and gradually falls. This is the season of alternating hot and cold.