Cryptomeria fortunei forest can absorb about 60 kilograms of sulfur dioxide per month, and the absorption of citrus forest is twice that of Cryptomeria fortunei. Each hectare of Robinia pseudoacacia forest and Betula platyphylla forest can absorb 42 kilograms of chlorine and 12 kilograms of fluorine every year. According to reports, Chlorella is usually stocked in the sewage temporary storage pool for 48 hours, and the purified sewage can be used for farmland irrigation;
Planting reed in the experimental pond can reduce phosphate, organic nitrogen, ammonia nitrogen and suspended matter in water by 20%, 60%, 66% and 30% respectively. 1 ha Eichhornia crassipes can absorb 4 kg of manganese, 89 g of mercury, 297 g of nickel, 32 1 g of strontium, 0/04 g of lead, etc. Experts from Institute of Botany, Chinese Academy of Sciences have made great progress in the research of removing heavy metal pollution with plants.
It has been found that more than 300 kinds of plants can secrete volatile bactericidal substances; 1 mu pine forest can secrete 2 kg of bactericide every day; There are 4 million bacteria per cubic meter of air in crowded shopping malls, 580,000 in boulevards, 1 0,000 in green parks and only 55 in forest areas. Fresh peach leaves can drive away bedbugs;
The smell of cucumber can make cockroaches run away; Onions and tomatoes can drive away flies; Wooden cordate telosma or basil can repel mosquitoes.
Extended data:
Advantages of green plants:
First of all, taking drugs purifies the air.
Some green plants can effectively absorb toxic chemicals produced by house decoration, such as chlorophytum, Eupatorium odoratum, Eupatorium odoratum, Dendrocalamus, etc., and their ability to absorb formaldehyde is particularly strong;
However, snapdragon, morning glory and carnation can transform highly toxic sulfur dioxide into non-toxic or low-toxic sulfate compounds through oxidation; Cycas, chrysanthemum, pomegranate and camellia can effectively remove harmful substances such as sulfur dioxide, chlorine, carbon monoxide and nitrogen peroxide.
Second, increase humidity without getting angry
Generally speaking, the indoor relative humidity should not be lower than 30%. Too low or too high humidity will have a negative impact on human health. Plant some indoor plants with high water demand, such as green radish, ivy, rhododendron and fern. It will increase the indoor humidity in a natural way and become a natural humidifier.
Third, natural vacuum cleaners.
Studies have shown that orchids, taro and osmanthus fragrans are natural dust collectors, and the cilia on their plants can intercept and absorb suspended particles and smoke in the air. If there are enough plants indoors, the content of floating microorganisms and floating dust will be reduced.
Fourth, sterilization and disinfection to protect health.
Flowers and leaves of plants such as Lagerstroemia indica, Jasmine and Lemon can kill protobacteria such as diphtheria and Shigella dysenteriae within 5 minutes. The fragrance of Dianthus caryophyllus, Lily of the Valley, Violet, Rose and Osmanthus fragrans has obvious inhibitory effect on the growth and reproduction of Mycobacterium tuberculosis, Pneumococcus and Staphylococcus.
5. Making oxygen and negative ions
Most plants release oxygen through photosynthesis during the day, especially cactus succulents. The stomata on their fleshy stems are closed during the day and opened at night, so they release carbon dioxide during the day and absorb carbon dioxide at night to release oxygen.
Intransitive verbs repel mosquitoes
Mosquito net incense has a good mosquito repellent effect indoors. Pyrethroids contain pyrethroids, which can also effectively repel mosquitoes.
Seven, cooling and radiation protection;
Eight, medical care;
Nine, beauty;
Ten, relaxing body and mind is good for sleep.
Baidu encyclopedia-green plants
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