How did the Qingming festival come about? What are the characteristics of Qingming climate?

Origin of Qingming Festival

"Qingming" originally referred to the festival. According to the dictionary "Qingming" word explanation: Qingming is "one of the twenty-four solar terms". The moon order seventy-two wait for a collection of explanation ":" March festival ...... things to this time, all to clean and clear carry on." By Qingming, the average temperature of the middle and lower reaches of the Yellow River and its south is generally above 10 ℃. Most parts of China's climate is warm, grass and trees sprouting, changing the cold and withering cold winter scene. Agriculture busy spring plowing and planting. Jiangnan farmers proverb: "Qingming Guyu two connected, soak seed plowing fields do not delay"; "planting trees and reforestation, not over the Qingming".

In China's traditional calendar, the year is divided into twenty-four seasons, used to reflect climate change and guide agricultural production. Qingming" is one of them, the time after the "spring equinox", "rain" before, that is, the beginning of the third month of the lunar calendar, converted into the new calendar, about April 4th or 5th. Since the 24 Solar Terms objectively reflect the changes in temperature, rainfall and weather conditions throughout the year, the ancient working people used them to organize their agricultural activities. Huainanzi Tianwenxun (淮南子-天文训): "Fifteen days after the vernal equinox, when the bucket points to B, the winds of Qingming arrive." According to the "time of the year," the statement: "everything grows at this time, are clean and" Qingming one to, the temperature rises, the rainfall increases, it is the spring plowing and planting of a good time. Therefore, there is "before and after the Qingming, planting melon point bean gas and agricultural production has a close relationship. A book recorded: "Qingming" is in the winter solstice after one hundred and six days, is also the "spring equinox" after the fifteenth day, when everything is clean, fresh air, beautiful scenery, flowers and plants in such an environment presents a thriving scene, so it is called "Qingming", one of the origins of the Qingming Festival.

Qingming Festival Weather

The ancients divided Qingming into three waiting, that is, the first wait, Tong began to Hua; the second wait for the wheat flowers, field mice into driving, peony Hua; the third wait for the willow flowers, the rainbow began to see. When the Qingming Festival is approaching, in most areas of China, the scene of fading trees has gradually disappeared, and replaced by the driving fly grass, willow green and peach red picture. At this time the spring has been thick, sunny, wind and smooth, willow willow, green grass.

Everywhere in the city and countryside presents a vibrant scene.

Because the twenty-four seasons objectively reflect the changes in temperature, rainfall, and physical climate throughout the year, Qingming is a very important season in farming societies, and is generally used as an important time to organize farming activities.

Once the Qingming Festival arrives, the temperature rises, the rainfall increases, it is the spring plowing and spring planting of a great time. Therefore, the Qingming Festival has a close relationship with agricultural production. Proverbs "before and after the Qingming Festival, point melon planting beans", "Qingming rain is closely linked to the dip seed spring plowing do not delay" explains the importance of the Qingming Festival on agricultural farming.

In general, the Qingming Festival gas, the earth temperature rises, grass and trees sprouting, the weather is clear and bright, everything is thriving. As the saying goes, "Qingming breaks the snow, grain rain breaks the frost". This shows that before and after the Qingming Festival, South China's climate is warm, spring is strong. At this time, it is the alternating winter and summer monsoon season in Guangdong, and the temperature rises. Although not very stable, but the warm and cold variation is not very large.

The Qingming Festival is busy farming, the climate to help

By the Qingming Festival, East Asia's atmospheric circulation has realized the transition from winter to spring. The west wind belt trough ridge moves frequently, low-level high and low pressure alternately. Jianghuai area warm and cold change amplitude, thunderstorms and other instability, precipitation gradually increased.

Qingming Festival, most parts of China's average daily temperature has risen to more than 12 ℃, north and south of the Yangtze River until the Great Wall inside and outside, everywhere is a busy spring plowing scene. In the northern region, the temperature rises very quickly, dry and windy, dusty weather frequently. By April, the average temperature in most areas can reach 10-15 ℃ in the north-east, north-west part of the region, although it has not yet entered the spring, but some places in March, the average extreme maximum temperature are also above 10 ℃, such as Hohhot 15.7 ℃, Xining 18.9 ℃, Qiqihar 13.5 ℃, so by April, these areas sometimes the temperature will have a significant climb.

Qingming Festival rain, said the climate characteristics of Jiangnan. During the Qingming Festival, the southern region is often cloudy and sunny, with more abundant rainfall. In addition to the eastern seaboard, most areas of Jiangnan in April the average rainfall of more than 100 millimeters, if the cold air is strong, there will be more than three consecutive days of average daily temperature below 10 ℃ of the low temperature rainy weather.

South China, due to its southward geographic position and proximity to the ocean, begins to experience larger precipitation when affected by fronts formed by the convergence of warm and cold air, known as the South China pre-flood season. When thermal convection is encountered in the rainbands when it develops vigorously, strong convective weather such as thunderstorms will occur, forming larger rainstorms. Excessive rain also brings some inconvenience when going out, which is quite annoying. And the vast area north of the Huanghuai Plain, Qingming season precipitation is still very little, often water shortage, for growing crops and spring sowing, even a little bit of rain is very precious.