Climatic characteristics and causes of summer solstice
Seasonal fruits from summer solstice
First of all, the seasonal fruit from summer solstice: Myrica rubra.
Myrica rubra is a very popular fruit in summer. Bayberry tastes sweet and sour, and it is a good digestion fruit. Moreover, many nutrients contained in Myrica rubra can also play the role of anti-inflammatory, antibacterial, cancer prevention, beauty and weight loss. Myrica rubra fresh fruit can help digestion and quench thirst. It is a good product for removing summer heat, which can prevent heatstroke, eliminate measles and relieve polydipsia. Myrica rubra contains a variety of organic acids, and the content of vitamin C is also very rich. Fresh fruit tastes sour, which can increase the acidity in the stomach, digest food and promote appetite.
Picked bayberry should be big, dark red and dry to the touch. This is a good ripe bayberry, very sweet. The bright red bayberry is actually undercooked and tastes sour. Myrica rubra with too dark color is ripe. When it is picked, it will feel wet, like soaking in water, and it is not delicious. Pay attention to the smell when choosing Yangmei. Fresh Myrica rubra smells good; If it is stored for a long time or improperly, it may have a faint smell of wine, indicating that Yangmei has been fermented and cannot be purchased.
Second, the seasonal fruit from summer solstice: peaches.
Among summer fruits, peach is a fruit with high nutritional value. Peaches are rich in vitamins, minerals and fruit acids, and also contain some sugar, pectin and a small amount of protein. Peach has a high iron content. Iron is the main raw material for human hematopoiesis, which helps to prevent anemia. In addition, because peaches are rich in pectin, regular consumption can prevent constipation. Therefore, eating peaches can not only relieve constipation, but also delay aging, improve immunity and stimulate appetite. It is a kind of health fruit and Zhi Tao.
Peach is characterized by its fragrance and sweetness. If you want to give full play to this fragrance, don't put it in the refrigerator. In a dry refrigerator, the sweetness of peaches will continue to evaporate, so peaches should be kept at room temperature.
Third, the seasonal fruit from summer solstice: watermelon.
Watermelon is sweet and juicy, cool and thirst-quenching, and it is people's favorite after a cold meal in summer. Watermelon tastes sweet and cold, and has the effects of clearing heat, quenching thirst and diuresis. Watermelon contains a lot of water. When you have fever, thirst, sweating and irritability due to acute fever, eating a sweet, sandy and hydrated thing will immediately improve your symptoms. Fresh watermelon juice and smooth watermelon skin can increase skin elasticity, reduce wrinkles and add luster. Therefore, watermelon not only has good edible value, but also is an economic beauty food chosen by women.
Edible Note: Watermelon belongs to cold food, so you can't eat more, otherwise it will hurt the spleen and stomach and cause pharyngitis. Patients with early colds and oral ulcers should not eat it, otherwise it will aggravate the condition. You can't eat watermelons that have been open for too long, and you can't eat cold meals for too long, otherwise it will cause gastroenteritis.
Fourthly, the seasonal fruit from summer solstice: litchi.
"Riding the world of mortals and laughing, who knows that it is litchi." Aside from the historical plot, this rich and sweet fruit does have the flavor of a lady. Litchi is sweet, sour and warm, and enters the heart, spleen and liver meridians; The pulp has the effects of invigorating spleen, benefiting liver, regulating qi and blood, warming middle warmer, relieving pain, nourishing heart and tranquilizing mind. The cell nucleus has the effects of regulating qi, dispersing stagnation and relieving pain; It can stop hiccups and diarrhea, and is a good diet therapy for patients with intractable hiccups and diarrhea. At the same time, it has the effects of strengthening the brain, strengthening the body, stimulating appetite and strengthening the spleen. But litchi is easy to get angry when eaten too much, and its sugar content is also extremely high. It's delicious, but don't overdo it.
Summer solstice fruit: lemon
Eating healthy and beautifying in summer is the pursuit of most women, so lemon rich in vitamins, minerals, citric acid and fiber is the holy product of summer beauty. Lemon peel is rich in aromatic volatile components, which can promote fluid production to quench thirst, relieve summer heat, stimulate appetite and strengthen the spleen. Summer is hot and humid, and many people are very tired. After working or studying for a long time, you often have a bad appetite. Drinking a cup of lemon soaked in water, the fresh and sour taste makes people feel refreshed and can open their appetite. Sour food can increase the acidity of gastric juice, strengthen spleen and stimulate appetite, and help sterilization and digestion.
Edible Note: Drink lemonade in moderation, no more than 1000 ml per day. In addition, don't eat lemon and lemon drinks on an empty stomach.
Summer solstice seasonal fruit: longan
Longan is a very delicious fruit, which ripens in late summer and early autumn. Sweet and refreshing after eating, the taste is not even as good as litchi, but it is not easy to get angry when eaten in large quantities. Fresh longan is a valuable tonic after drying.
Seven, summer solstice seasonal fruit: loquat
Loquat, a seasonal fruit in summer, is not only sweet and nutritious, but also helpful to treat diseases. It is a good product for health care in summer. Loquat fruit helps to inhibit influenza virus and prevent summer influenza. The organic acids contained in loquat can stimulate the secretion of digestive glands, which has a considerable effect on stimulating appetite, helping digestion and absorption, quenching thirst and relieving summer heat. The rich vitamin B in loquat plays a very important role in protecting eyesight, keeping skin healthy and moist, and promoting children's physical development.
Caution: Nuts contain amygdalin, which is toxic. Do not eat it by mistake, so as not to endanger health and life.
Eight, summer solstice seasonal fruit: cantaloupe
Wax gourd is sweet and cold in nature, which not only has the effects of quenching thirst, removing heat, dredging triple energizer, facilitating urination and relaxing bowels, but also has the effects of heatstroke prevention and benefiting qi. There is a substance called "melon pedicel" in its pedicel, which can be used to treat jaundice, icteric infectious hepatitis and liver cirrhosis. Gua pulp can also treat mouth and nose sores. Melon seeds have the effects of clearing away heat, detoxicating and diuresis, and can be used to treat lung pain. However, patients with spleen and stomach deficiency and cold, diarrhea, vomiting blood and hemoptysis should not eat it.
When picking melons, you can choose the method of "seeing, touching and smelling". Looking at the skin and pulp, from the ecological characteristics, the melon with thick skin has high sugar content and tastes crisper and sweeter. Because the skin of melon is thick, it is rich in nutrients. Second, touch the melon stalks and pay attention to the comparison of fruit stalks. If the fruit stalk is too thick, it may be stained with more auxin, and the taste will naturally be poor. Pull the melon pedicle by hand, and the roots will naturally fall off, leaving a small pit, indicating that the melon is naturally mature. Three smells, the melon with rich aroma is better.
Climatic characteristics of summer solstice
Convective weather
After the summer solstice, the ground is heated strongly and the air convection is strong, and thunderstorms are often easy to form in the afternoon to evening. This kind of hot thunderstorm comes and goes, and the rainfall range is small. People call it "dividing fields in summer and rain". Liu Yuxi, a poet in the Tang Dynasty, skillfully used this weather to write a famous poem, "The east rises and the west falls, and the road is sunny and sunny." The heavy precipitation brought by convective weather is not always as beautiful as described in the poem, and it often brings local disasters. In his poem It's Rain in Summer, the poet Xu Xinshu also appropriately described the thunderstorm weather in summer: "It's windy in summer, sitting on the stage in summer, frogs chirping and attacking the dust. The golden gongs are ringing in the air, and the cold rain is like money. "
Rainstorm weather
In most cases, during the "summer solstice" period, the middle and lower reaches of the Yangtze River and the Jianghuai basin are rainy and frequently rainstorm, which is easy to cause floods and even threaten people's lives and property. Attention should be paid to strengthening flood control work.
Jianghuai Meiyu
Summer solstice season is the "Meiyu" season in Jianghuai area. At this time, it is the ripe period of plums in Jiangnan, and the air is very humid. Cold and warm air masses meet here, forming a trough of low pressure, leading to rainy weather. In this weather, the utensils are moldy and the human body feels uncomfortable. Some mosquitoes breed quickly, and some intestinal bacteria are easy to breed. At this time, we should pay attention to drinking water hygiene and try not to eat cold food to prevent the occurrence and spread of infectious diseases.
High temperature sauna
Like the winter solstice, the summer solstice is also a solar term reflecting the changes of the four seasons. Astronomy stipulates that the summer solstice is the beginning of summer in the northern hemisphere. After the summer solstice, although the direct point of the sun gradually moved southward, the days in the northern hemisphere became shorter and the nights became longer. However, because the heat radiated from the sun to the ground is still more than the heat radiated from the ground to the air, the temperature will continue to rise in the future, so there is a saying that it is not too hot from summer to the sun. According to the data of 195 1 -2006, the historical extremes of many cities in the north appeared after the summer solstice.
The origin of summer solstice
Solstice is the earliest of the 24 solar terms. In the 7th century BC, the shadow of the sun was measured by civil soil gauge, thus the summer solstice was determined. The annual summer solstice begins on June 2nd1day (or 22nd) and ends on July 7th (or 8th). According to "Zunxian Manuscript", "The sun arrives in the north, the days are long and the shadows are short, so it is called the summer solstice. At best, it is excellent. " On the day of summer solstice, the sun directly reaches the northernmost part of the year, almost directly to the Tropic of Cancer (23 26' north latitude), and the daytime in the northern hemisphere is the longest, and the farther north it is, the longer it is.
For example, the daily length of Haikou in Hainan is a little more than 13 hours, Hangzhou is 14 hours, Beijing is about 15 hours, and Mohe in Heilongjiang can reach 17 hours. From summer to the future, the position of direct sunlight on the ground gradually moves southward, and the daytime in the northern hemisphere is shortened day by day. There is a folk proverb that "eating noodles on the solstice in summer will shorten the day". At this time, the southern hemisphere is in the middle of winter.
In ancient China, the summer solstice was divided into three phases: "the first phase of antlers decomposition; Second, wait for cicadas to start singing; Third-class Pinellia ternata. " Although Mi and Lu belong to the same family, the ancients thought they belonged to Yin and Yang. The deer's horn faces forward, so it belongs to Yang. On the solstice of summer, Yin Qi was born, and Yang Qi began to decline, so the front antlers began to fall off.
Because mi belongs to yin, it falls in the corner of winter; After the solstice of summer, the male cicada fluttered and sang because of Yin Qi's feeling; Pinellia ternata is a shade-loving herb, named after it was born in swamps or paddy fields in midsummer. It can be seen that in the hot summer, some yin-loving creatures began to appear, while positive creatures began to decline.
China people divide the15th day from summer to the future into three "hours", usually the first three days, the middle five days and the last seven days. During this period, the temperature in most parts of China was high, the sunshine was sufficient, the crops grew rapidly, and the physiological and ecological water demand was high. At this time, the precipitation has a great influence on agricultural output, and there is a saying that "the rain from summer to the sun is worth thousands of dollars".
In general, the precipitation in the middle and lower reaches of the Yangtze River and Huanghuai area can generally meet the requirements of crop growth. The Chronicle of Jingchu's Age says: "It rained on June 3rd, and the Tian family thought it was sweet, and the whole city congratulated each other." It can be seen that as early as 1000 years ago, people had a clear understanding of the characteristics of this rainfall.
"However, the summer solstice is not hot." "The summer solstice is already three years old." Although the summer solstice indicates that the hot summer has arrived, it is not the hottest time yet. As the saying goes, "Hot days are in dog days", and the real hot weather is calculated by summer solstice and beginning of autumn. From mid-July to mid-August, the temperature is the highest in all parts of the country, and the highest temperature in some areas can reach about 40℃.
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