Kunpeng Project
Is it better to have a sunny day or rain on an autumnal equinox? Can the ancestral proverb predict the weather?
Introduction. Climate is the main factor affecting agriculture and people's lives. The autumn equinox is an important season in China, and its climate is also widely valued. In the countryside, there are many agricultural proverbs about the "autumn equinox day", which contains a large number of farmers' understanding and perception of agricultural production. "The autumn equinox rain blocks the door, and next year's summer grain harvest", "The autumn equinox sun laughs, and it is not dry to wait for the coming spring", "The autumn equinox is rainy, the sky is not dry", "The autumn equinox rains, the sky is not dry, the autumn equinox is rainy, and the cold dew is cold". Could this phrase play a role in the weather forecast at the autumn equinox?
The autumn equinox rain locks the door, and next summer harvest.
The ancients had clouds, and at the time of the autumn equinox, if there was a heavy rain, the summer of the following year would usher in a rare harvest. The essence of this saying is that the autumnal equinox rains are the main factor that promotes a good wheat harvest. Water is an essential nutrient for crops. Summer is the season when crops are vigorous, and abundant rainfall can meet the water needs of crops, which is conducive to the growth and development of crops. Rainfall on the autumn equinox can bring valuable moisture to crops and increase their yields. In addition, rainfall at the vernal equinox also increases the moisture content of the land, reducing the damage to crops caused by drought. Therefore, this "agricultural proverb" is very meaningful in agricultural production in ancient China.
But we can't just make decisions based on proverbs. With the continuous improvement of science and technology, the requirements for the accuracy of weather forecasting are getting higher and higher. Through the monitoring and analysis of these data, we can make more accurate predictions and judgments on future climate conditions, and carry out relevant agricultural production management in a timely manner. Therefore, when formulating agricultural policies, we should make full use of the inspiration of proverbs and the support of modern technology, make use of our strong points and avoid our weaknesses, and proceed from reality.
Smile at the autumnal equinox and stay until next spring.
There is an old agricultural proverb that says that at the time of the vernal equinox, the sun comes out, and there will be a drought the following spring. In dealing with this colloquialism, it should be noted that this statement is based on the observation of celestial phenomena by ancient people, and lacks scientific analysis to support the climate. However, this does not negate the significance of this statement.
Abundant sunshine heralds drought. Light causes water to evaporate, while water scarcity causes drought. So, on the day of the autumnal equinox, the weather is clear, indicating a higher rate of water evaporation, lower moisture in the soil, and more prone to drought. In addition, solar radiation also causes air temperatures to rise, which makes water vapor evaporation more severe. So, if there is a sunny day in autumn, there is a possibility of drought in the following spring. However, variation in nature is very complex, and the influencing factors produced by it are multifaceted, and it is limited to be able to make accurate predictions based on a single proverb. Therefore, when encountering similar situations, it is necessary to use modern meteorological technology and plan accordingly according to local conditions.
There is a lot of rain at the autumnal equinox, and the weather is dry.
This rural proverb says that when it rains on the autumn equinox, the rain will continue for the rest of the day. More than other sayings, this statement focuses more on the effects of rainwater conditions on crops and fields.
Moderate precipitation is a great boon to arable land. Irrigation can bring enough water to the crops so that they can grow normally. Especially in some dry places, or when there is a lack of rain, the rain at the spring equinox will bring great joy and comfort. In northern China, precipitation increases around the autumn equinox. This is a key addition to arable land in arid zones.
However, this statement does not indicate the duration of precipitation in the region and the abundance of rainfall. At present, the climatic conditions in China are very complex, and the time, intensity and range of precipitation are related to a variety of factors. Therefore, when formulating agricultural production plans, scientific decisions should also be made in combination with weather forecasts and actual conditions.
During the autumn equinox, there is a lot of rain and frost and dew.
Another rule is that if there is rain on the autumn equinox, it will be colder in the later dew period. Cold dew marks the cooler and cooler temperatures, which is a major sign of autumn. If the temperature is high during the cold season, the temperature will become colder with rain.
In a sense, this proverb reflects the climatic characteristics of autumn. In northern China, with the arrival of autumn, there is more and more cold air as the temperature drops. Rain, on the other hand, will make the temperature rise and make people feel more chilly. Such a cold climate will have a certain impact on the growth of crops and human health. So, this is a proverb about keeping warm from the cold in winter.
However, we can't just rely on this proverb to determine the future climate. Meteorological elements are a complex system formed by the combined action of various factors such as atmospheric circulation, air pressure field, and topography. Therefore, it is obviously unscientific to make accurate weather forecasts based on this proverb alone. In order to make accurate forecasts, it is necessary to combine weather information with knowledge of meteorology.
Although the proverb does not necessarily provide a comprehensive forecast of climate change, it is an experience accumulated by farmers over a long period of observation. This phrase reflects the sensitivity of farmers to the climate and their concern for the yield of agricultural products. With the rapid development of China's economy and society, it is necessary to integrate meteorological science and technology with agricultural science and technology, make full use of various factors, and make accurate decisions.
In short, although these proverbs do not provide a comprehensive forecast of climate change, they can reflect some local characteristics and experiences in a certain sense. We should attach importance to and inherit the ancient agricultural language, regard it as a reference, and integrate it with modern science and technology to better serve agricultural production. At the same time, it is necessary to continue to strengthen the monitoring and forecasting of climate change, and use modern scientific and technological methods to enhance the ability of agriculture to increase production and efficiency and resist risks. We must give full play to the advantages of science and technology, strengthen climate adaptability, and ensure the sustainable development of agriculture.