Russian experts after years of study found that mushrooms community can more accurately reflect the waste of petroleum products on soil pollution levels.
According to Russia's their local microbial world, occupies a number of advantages. Russian legislation and the Russian Academy of Sciences, Bashkir University experts found the Ural Institute of Biology, mushrooms mushrooms communities living in different states, can more accurately reflect the disposal of petroleum products on soil pollution levels.
researchers found that when the soil reaches a certain amount of oil pollution, the head large, slower growth will mushroom into hibernation, the species will be rapidly reduced. The extremely small, mushroom fungi grow faster but can be the main component of petroleum hydrocarbon contamination is decomposed into small molecules, and absorption to obtain energy. Therefore, this microscopic fungus will multiply abnormally, become a certain size of plant pathogens. They generate other harmful substances can damage the inner workings of plant cells, the plant died. But gradually reduce pollution, soil condition gradually improves, the number of these fungi will be declining, while the larger mushrooms will return vitality.
Russian experts thus believe that mushrooms can be a community indicator of soil contamination by closely observing the survival status of the community can help to determine the actual effects of various remediation methods.
climbers may damage the wall and the breeding mosquitoes it?
adsorbed on the walls of the climbers, not only can reduce the temperature, reduced noise level, increasing humidity, blocking dust, pollution prevention, and can beautify the environment, enhance the city's green coverage. This is great news, we should vigorously promoted. Unfortunately, some people mistakenly believe that use of climbers green walls, walls, columns, awnings, etc., will be damaged protective layer outside the building. In actual fact, climbers of the sucker, the aerial roots will not grow into the wall, and only cling to the surface. Coverage of the climbers on the wall, like a big fast isolation layer to prevent leaching of atmospheric water droplets on the wall directly by the storm and the harmful gases and the erosion of the wall to avoid premature destruction by weathering. Since climbing a building material based on the absorption and distribution of soil moisture, for the building foundation has created favorable conditions to help protect the base and extend the use of the building. Therefore, planting climbers on the wall is not only harmless but beneficial.
covering the wall above the climbers, and will not breed mosquitoes because the larvae larvae are born in sewage, although mosquitoes may be hiding in the thick leaves of climbers, the gecko but swallowed easily eliminated. Climbers, the gecko in the often symbiotic. Gecko overnight, to feed mosquitoes, flies and other small pests hundred only, summer and autumn to feed more than just a small insect. Gecko will not hurt, nor toxic, science has proved, was taken from the gecko with a viscous transparent urine, painted in the human forearm, only to feel the skin is cold, no pain and disease, but will not harm eyes ears. Therefore, green walls with climbing plants, beneficial and harmless, can be bold planting.
Ginkgo evolution in a missing link
issue of The British Ginkgo evolution in a missing link.
a long time, the classification and evolution of the activation Dan Yinxing research has been of concern to industry. China is not only the origin of Ginkgo biloba is the world's most important fossil Ginkgo origin. Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences Academician Zhou Yan and Zheng Shaolin Shenyang Institute of Geology and Mineral Resources Research Fellow through collaborative research, found that early Cretaceous Yixian Formation in western Liaoning, China (1.2 billion years ago) has the reproductive organs of Ginkgo fossils, which filled the ginkgo evolution of a gap up to 1 million years.
According to reports, Liaoning, Early Cretaceous fossil Ginkgo between the oldest known form of Ginkgo biloba and Ginkgo biloba are among the students, but more close to the extant Ginkgo biloba. It is not only a Scientists say that this important finding is another important milestone in the ginkgo study, it provides the important evidence of Ginkgo evolution, so that people on this precious relic of Ginkgo evolution of plants have a more clear understanding.
exotic plants - trees
ant habitat of dense forest in South America, Brazil, grows a Moraceae plant - ant habitat tree. It leaves a lot like ricin, a section of hollow tree trunks, similar to bamboo, stems densely covered with numerous small holes. In the same dense forest is also grows a forest pests - rodents eats all kinds of leaves leaf ants. However, the ant habitat tree able against them because of tree dwelling ants while growth of another Hollow tree trunk ant habitat is ideal for residential beneficial ants. When ants come Nie its housing violations, the
habitat benefits ants protect the tree ants, but ant habitat tree base of each petiole, and gave benefits provided ant food rich in protein and fat. Ant ant habitat trees and beneficial relationship that had each other, known as the Nanjing Botanical Garden had a pity that now are gone.
endemic to China:
chinensis chinensis (Larix chinensis Beissn), Pinaceae (Pinaceae). Deciduous trees, 15 meters, diameter 60 cm. Born in a long spiral leaves scattered or clustered at the spur on the branches, linear, two were white stomatal lines. Cone oblong or ovate cylindrical, blue-purple to grayish brown when cooked. Endemic to China. Only published in the Qinling, 2600 ~ 3500 meters above sea level at the composition of alpine mountain located in pure stands or scattered within a conifer. Protection of the endangered species of national levels.
narcissus carving timing
choice of timing is very important sculpture, carving time prediction must be carried out before, that is, after carving through the water to keep, to make the scheduled time Turui flowering. Determine the date of flower (New Year's Day, Spring Festival, or festive days), then place under cultivation Narcissus temperature, light, etc. to choose carving day. Date from the sculpture after raising the water, adjust the shape to open first flower narcissus , the daffodils of the viewing period of 12 days, the best view of 70% to 80% flowers open, the remaining buds budding, when the flower smell thick, with flowers, buds, to give to make progress , a sense of prosperity.
the speed of growth and development of Narcissus and the length of flowering, and cultivation of daffodils places high and low temperature, adequate light and humidity conditions or have a direct relationship. High temperature, adequate light, moist environment, growth and development of fast, In this environment, the daffodils in the If most of the flowers open, there is still a small part of the narcissus flower plants, can no longer be the sun, the daffodils placed in the average temperature of 5 degrees C during the day about 2-4 degrees C at night the water for the shade, flowering up to 20 days .
If you want to view flowers in the Spring Festival period, the average temperature during the day training site in Narcissus 12 ~ 14 ℃, the minimum night temperature of about 2 ℃, water for about 42 days to flowering. The number of days is calculated according to normal years, In case of erratic weather, the clouds appear more or cold days, etc., must play off time of 3-4 days, it would need about 45 days before the Spring Festival were carved. If you want to watch the New Year
narcissus, daffodils or in the workplace, and that the number of days in advance is not 45 days, because the narcissus bulb flower buds in the water for the sculpture, if not, it has also been a long development, water for more than just carving it after the slow growth rate.
if the off-season maintenance, bulbs can be placed on 1 October low temperature storage freezer or refrigerator, in March to July can be carved water to keep, during immersion to the flowering time and support before the Spring Festival roughly the same.
in the same area, with a conservation site, on November 5 the narcissus bulb carving water to keep the ball to first flower opening requires about 40 days; November 20 carved water to keep the needs of the first flower open 37 days or so; December 5 balls carved water for bulb flowers open to the first and 34 days; December 20 balls carved water to keep the bulb, 32 days or so will be able to blossom.
Based on the above information, as well as local temperature, light, etc., combined with his experience of sculpture Water daffodils, flower date is confirmed, narcissus bulb carving on the ball is not hard to choose.
plants of the eight treasures
March 12, is China's Arbor Day, the forest coverage rate in China is far below the world average, is a Shaolin countries, but a wide variety of plants , is the world's plant species than any other country of a thousand species in the plant up to three of them, a key state has three hundred fifty-four kinds of protection, including protection at the national level there are eight, they are our national treasures, the eight plants are the National Health Insurance:
Metasequoia: deciduous large fir tree, the tree of one of the precious relic, was hailed as the living fossil of the world's biosphere; wild Wanxian distributed in Sichuan, Hubei Icheon, Hunan Yongsan, Sangzhi area; tree history can be traced back to the Cretaceous period.
Alsophila: tree ferns, also known as
silver fir: Pinaceae evergreen tree, as relict species endemic to China; tree history of more than a thousand years, the glaciers in the late Tertiary extinction event is almost only in the country located in low latitude Southwest remaining. Fifties was found.
involucrata: involucrata deciduous tree, to watch the world famous tree, the habitat because of its flower is like a dove, it is also known as the Dove survival rate is low,UGG shoes, very difficult to transplant, it is now in declining trend.
Camellia: Theaceae small trees, as our most valuable ornamental plants. It is pleasing not only beautiful flowers, the tea leaves or advanced materials and energy medicine. Only produced in Guangxi, Changning, Dongxing two places, it is not portable.
Ginseng: Araliaceae plant perennial vegetation, rare medicinal herbs, is the protection of eight plants, the only grass plants. Only produced in northeast China and northern Korea, and to plant high technical requirements, is well-known economic plant.
flousiana: large evergreen fir trees, is a species of one of the most famous building, its dense wood light, soft, straight grain, produced in Yunnan, Guizhou, and northern Burma, but very rare . Parashorea
: borneol spices evergreen tree. As the name implies, it is expected to work days, height up to seventy meters, is the world's best ships, vehicles, timber trees, alone produced in the forests of Xishuangbanna. Emotion and Communication
Secret Plant flowers opening and closing time spent
Reason: thought-provoking emotional
plant scientists have long ago there are about 400 kinds of proven plants can forecast weather conditions, the eighteenth century Carl - Linnie first invented and designed the flower clock. In recent years, scientists have a series of experiments also proved that plants have feelings: they like people to treat it, hate it, reeking of booze to smell it, what is more, they also have memory, vision and smell, they also can appreciate your feelings and thoughts and respond to ... ...
early as 1959, The article describes the Soviet Academy of Agricultural Biological Control Laboratory, Institute of Physics conducted an experiment. Experimental procedure is as follows: the greenhouse at the Institute scientists are very sensitive sensors installed, when the soil is dry, greenhouse plants (in the experiment using kidney beans) will send low frequency signals. This rule is installed in the greenhouse sensors record the signal when the sensor again to accept this, the irrigation device will automatically start watering. Over time, plants will form its own special conditioning, when it needs watering when the signal will be issued immediately. Scientists have finally learned the results from this experiment, the watering of the plant to a small number of times. The scientists say this is precisely the way watered plants (kidney beans) itself.
plants with emotion, memory and communicative function
above this simple experiment proved that the cultivation of plants than animals, and not necessarily difficult. Many people assert that there was a plant without the nervous system, but the fact that plants not only have a complex nervous system, there is a feeling, memory and communication systems.
one of the most classic experiment proved the plant has memories of this experiment is the first time biologists from France, if you are interested you can repeat this experiment.
When the plants have two leaves when the seedlings first emerged recently, scientists take the needle of which a few young leaves, torn in a few minutes of this film scientists leaves. Bud continued growth and development, but its development has been an obvious imbalance: its branches, flowers, fruit only in the side of acupuncture have not been normal growth and development. This shows that the leaves were removed from the injured, the plant had received acupuncture remember bears heavily on the side of danger.
addition to the memory function, the plant still has its own special visual and olfactory function. For example, wetlands in the growth of a carnivorous plant sundew, its leaves covered with sticky hairs, which hairs can be within the control of any access to it stick insects, and then secrete a substance will be These insects inexorably melt and as a meal. Once this plant is substandard it stick insects appetite will put it bluntly even taken their eye is not. Sundew is how to distinguish between edible and inedible insects, the scientists who is still a mystery.
more interesting is that there is a bush there is a distinction between fields, As we all know, is to rely on bush expand their root system to draw a large water. But when it's roots deep in the soil or spread encountered And this encounter is not directly met, they can within a certain distance of each other to identify each other. Has always been known as the is a satire.
Not long ago, scientists from Germany and Italy have also adopted a long-term study concluded: plant also has feelings.
scientists study the two countries, in the face of threats of plant can exhibit an excellent team spirit, it can emit a special scent to remind fellow around: we are under threat, we should stand together.
in just the past the April 12, University of Turin, Italy, biologists published their findings of a: plant pests can feel hunger and near to them accordingly reaction. When the experiment with grass pests eat the leaves feel, it will issue a smell like lavender. Significance of experimental grass is not limited to issuing this smell around the partners to issue a warning, and this taste of lavender can be released into the air to attract the arrival of the Hornets, and Hornets are the natural enemies of insect herbivores is this. Scientists are growing in Latin America in the vicinity of beans, corn, cranberry and some other studies also found that plants a similar phenomenon.
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