Ornamental plants have the property of releasing substances. Many plants contain antibiotics and chemicals with antiviral effects. These plants can emit a lot of gas, which makes the chemicals in plants diffuse into the air and then enter the human body through the human respiratory system or skin pores, thus playing the role of preventing diseases, strengthening the body and prolonging life.
Keywords: ornamental plants, health care, flowers, air purification, health care
Thesis:
Modern urbanites live in prosperous cities, and the urban environment is increasingly unable to meet human health, but people have higher and higher requirements for the environment, and more emphasis is placed on building a garden city suitable for people's lives. Scientific research has proved that many plants contain antibiotics and chemicals with antiviral effects, and some plants can also emit beneficial chemicals, which can enter the human body through the human respiratory system and skin, and play a role in preventing diseases, strengthening the body and prolonging life. These plants are generally called health plants or medicinal plants.
The application of health plants in urban greening mainly has the following ways:
1, sterilization, conducive to disease prevention.
There are nearly 100 different kinds of bacteria in the air, most of which are pathogenic bacteria. Some plants can secrete volatile substances, killing bacteria and protozoa. Phytoncide is one of the natural immune factors for plants to protect themselves. For example, after the leaves of Platanus acerifolia are crushed, protozoa can be killed within 3 minutes.
Step 2 purify the air
Plants have two major functions in improving the atmospheric environment: first, they can absorb carbon dioxide and make oxygen; Second, it can absorb harmful gases in the atmosphere and purify the air. Most plants can absorb harmful gases in the atmosphere to varying degrees, such as Cryptomeria fortunei (1 hectare), and can absorb 60 kilograms of sulfur dioxide every day. Among broad-leaved trees, Ailanthus altissima, oleander, Platanus acerifolia, willow, Magnolia grandiflora, Ginkgo biloba, Acer truncatum, willow and Populus canadensis have stronger ability to absorb carbon dioxide than conifers. Buxus macrophylla, Ligustrum lucidum and fast-growing Paulownia, Robinia pseudoacacia and Eucalyptus have strong fluoride absorption ability; Buxus macrophylla, Ligustrum lucidum and fast-growing Paulownia, Robinia pseudoacacia and Eucalyptus have strong fluoride absorption ability; Small trees such as Albizia Albizia, Bauhinia and Hibiscus, which are common in urban greening, have the ability to absorb chlorine. Cinnamomum camphora and Platanus acerifolia have good ozone absorption capacity. Some plants can secrete different degrees and different kinds of fungicides, and become natural enemies of some bacteria in the atmosphere. In addition, garden plants can also absorb some radioactive substances in the atmosphere, which are also harmful to human beings. Therefore, people call green plants cheap multifunctional air purifiers.
3. Olfactory therapy
Olfactory therapy mainly causes people to feel different smells through the gas emitted by plants, thus having different effects on people around them. These plants have long been loved by people because of their floral fragrance and ornamental value, and can be planted and applied according to the different effects of different gases on human body. If lotus fragrance makes people feel peaceful, it can be planted in the corner of the lake in temples, hospitals and parks to create a quiet and relaxing space; The fragrance of roses makes people feel happy and is suitable for planting in public places; The scent of jasmine and magnolia makes people relaxed and comfortable, while the scent of osmanthus makes people feel refreshed and relieve fatigue. It is suitable for planting in communities, hospitals, schools, parks and small gardens.
The application of plant health care has a profound historical origin. In the ancient folk Dragon Boat Festival in China, Atractylodes lancea, Folium Artemisiae Argyi, Acorus calamus, Radix Angelicae Dahuricae and Yunxiang were smoked to prevent diseases, and the effect was better than that of ultraviolet rays. Huatuo made a sachet of silk, filled with musk, clove and sandalwood, which can be hung indoors to treat tuberculosis and vomiting. Experiments show that these spices have antibacterial effect.
At present, there are fragrant flower hospitals in Russia, the United States and Japan. In Xianghua Hospital, treatment depends not on expensive equipment and drugs, but on flowers that bloom all year round. The doctor asked the patient to inhale a certain dose of flower fragrance as a treatment. The Harajuku Clinic opened in Tokyo, Japan, mainly treats diseases caused by excessive stress. A 20㎡ lounge, fragrant with flowers, makes people feel comfortable, happy and forget their troubles. "Fragrance" comes from lavender in the corner. There are similar hospitals in America. Aromatic plants can also improve work efficiency. For example, Japanese psychologists have tested that introducing a certain fragrant smell into the workplace can eliminate people's fatigue and reduce operational errors. Computer operators who work in lavender fragrance can reduce 20% key errors. Jasmine fragrance has a better effect and can reduce the error of 1/3. The best lemon fragrance can reduce mistakes by half.
4. Physical therapy
Active physical exercise can promote and strengthen human physique, thus preventing various diseases. This is the foundation of forming a generalized physical therapy and health care ecological community. In the early morning, facing the green plants, the nature is clean and the breathing is smooth, which makes many practitioners gradually forget the real pure realm of "entering" on the road.
Breathing in the face of some plants has certain medical effects. When practicing, breathing on pine trees (Podocarpus, Cedar, Pinus massoniana, Pinus tabulaeformis, Pinus yunnanensis) has the functions of expelling wind and dampness, relaxing tendons and dredging collaterals. It has certain curative effect on joint pain, tendon twitching, beriberi fistula and other diseases. Why are pine trees so good for breathing? Because pine trees can volatilize carotene, vitamin C and oil containing α-camphene. Human beings practice three movements, nine orifices are opened, the twelve meridians's eight strange pulses, and qi and blood circulation. Inhalation of these substances can dredge meridians and enhance the biochemical function of organs, thus playing a medical role. In the face of camphor tree practice, it has the effect of inducing resuscitation, relieving pain and avoiding filth, especially stimulating the stomach and making it comfortable and warm. Because camphor smells in the branches and leaves of camphor trees, the fragrance is even worse when they bloom in spring. Cinnamomum camphora volatile oil contains a variety of organic substances, which can dispel wind, remove dampness and warm the stomach. For some patients with asthma, hypertension and atherosclerotic heart disease, it is beneficial to practice in front of ginkgo trees. Ginkgo biloba is a precious medicinal material, which contains biflavonoids, kaempferol, rutin and other components. When human beings breathe, they will feel fragrant, which is beneficial to the heart, astringing the lungs, eliminating dampness and stopping diarrhea. Long-term exercise under Ginkgo biloba leaves is effective for severe stuffy heart pain, palpitation, excessive phlegm, asthma and cough. Since 1970s, there has been a worldwide upsurge of human pursuit of forest bath. Forest hospitals have appeared in the United States and Japan. 60% of Japanese people take part in forest baths. After studying the relationship between health and forest, they realized that forest is one of the three baths (seawater, sunshine and forest) that are beneficial to human health. Germany put forward that "forests are open to the whole people". After clinical trials, the medical community in this country has come to the conclusion that the human body has strengthened its disease resistance after forest bathing, and its function has been adjusted and restored.
5, adjust the spiritual life
Gardening helps to regulate the spiritual life of modern people. The fragrance of flowers is pleasing to the eye and makes people feel relaxed and happy. Putting a few pots of flowers in the living room or planting some flowers and bonsai in the courtyard can enrich and beautify the family environment, increase the interest of life and eliminate all kinds of negative emotions. Planting flowers for bonsai is not only an exercise, but also a manifestation of cultural and artistic accomplishment. Studies have confirmed that frequent viewing of bonsai and flowers can make impatient people docile, people in a bad mood become cheerful, and depressed people become positive. Some elderly autistic people, after taking part in gardening, have added fun to their lives, and their loneliness and loneliness have also decreased a lot. Moreover, people feel and experience this elegant entertainment and enjoyment in planting flowers and grass, which can adjust their mood and bring some sustenance and comfort to the spirit.
On the basis of the existing research on garden health plants, according to the physiological habits of health plants (aging characteristics, spatial characteristics, health care methods) and the relationship between plants at different ages and human health, garden health plants are divided into the following four types:
(a) infants and adolescents are mainly suitable for physical fitness; Improve the immunity to the surrounding environment, pay attention to learning and entertainment, cultivate the ability to recognize the world, and inspire young people's thinking (such as geranium, which can prevent children from getting sick or poisoned). (2) Adult body-building is the mainstay; Refreshing thinking, expanding ideas and improving work efficiency; Work to relieve stress and fatigue (such as plum blossom, white orchid, green radish, etc. It can help mental workers who are engaged in creative work all day to be clear-headed and clear-headed, and natural and fresh fragrance can relieve nervous nerves);
(3) Prevention of diseases suitable for the elderly; Pay attention to delaying aging, lowering blood pressure, preventing cardiovascular diseases and prolonging life (the aromatic volatile oil emitted by camphor tree can help the elderly to dispel wind, remove dampness and relieve pain; The fragrance of chrysanthemum and honeysuckle can reduce the blood pressure of hypertensive patients);
According to the reasonable collocation of various plants, healthy forest gardening forms a plant community system combining arbor, shrub, grass, flowers, fruits and leaves, realizes a plant landscape integrating health care, science, culture and art, and builds an ecological medicinal plant villa park with good health care function with new ideas and new methods, so as to play its due ecological and environmental effects in promoting residents' physical and mental health. In China, the development of health gardens has just started, but it has been paid more and more attention. Many successful examples have sprung up all over the country. In order to make healthy plants play a better role in urban gardens, we should pay attention to the following principles when applying them: (1) From the perspective of landscape greening, we should master the principle that its core is "green". (2) Deal with the relationship between competition, growth and circulation among plants. (3) Pay attention to the habit of plants loving yin and yang, and try to make them form a regular, functional, patchwork and elegant garden community. It not only fully demonstrates the horticultural effect of greening and beautifying plants, but also gives full play to the medicinal and health care functions of plants. (4) The efficacy of health plants is slow, therefore, in order to have obvious effects, a certain number must be reached. (5) The efficacy of each health plant is different, so don't plant them together, otherwise the efficacy will be affected. Garden green space is an important infrastructure of the city, serving the development of the city and the general public. The rapid development of China's economy and the acceleration of urbanization have promoted the continuous expansion of urban landscape functions. Health garden can not only improve the urban environment, but also enable people to acquire health knowledge and improve their self-care ability in the garden environment, which is very in line with China's special national conditions such as large population, few medical measures and tight funds. Therefore, it will have a broad development prospect to extensively carry out the construction of health care gardens.
References:
1, Modern Horticulture 20 1 1 No.22 "On the Functions of Urban Healthy Botanical Gardens"
2. Baidu Library website "Effects of Garden Health Plants on Human Body":
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3. The concept of ecological landscape neutrality and its plant disposition in yeyu, Journal of Kunming University of Science and Technology, May 2006.
4, Xu Naixiong "Urban Green Space and Environment" China Building Materials Industry Press 200 1 year in September.
The text (thesis) part is 3000 words. I hope to adopt.