You most long for " the Hua Mancheng when catkin flies " , but most be afraid of " crackbrained c

Be in Beijing, because spring air temperature is higher this year, the outbreak of willow flying catkins time shifted to an earlier date than in former years a week, predict the middle ten days of a month will achieve fastigium in April.

Spring in April day, below the powerful offensive of flying catkins of willow of all over the sky, shandong Jinan is same deeply its faze.

The weather of warm complacently, nanjing streets and lanes also begins the picture that all over the sky of occurrence willow garrulous flutters, lakefront of side of river of the Huaihe River of the Qin Dynasty, incredible connecting with the boxing skill, white flying catkins often waves, the catkin of a white is on pond surface repeatedly. Cycle on the road, do not open even the eye sometimes come.

Catkin, it is the indispensable flowery language in poetic word since ancient times, su Shi is in " east column pear is beautiful " write in a poem of four lines of this 7 character: "Pear spends weak white Liu Shenqing, the Hua Mancheng when catkin flies " . The occurrence of catkin is delivering Chun Xia's seasonal arrival, adumbrative weather is calefacient, everythings on earth anabiosises.

However the flying catkins of all over the sky is flying, surround us all round euqally as cotton perianth, the aesthetic feeling that come out is depicted to sell at a discount greatly in your line, also bring a lot of influence alive to city the people's livelihood, many netizens spit groove in succession.

In fact, willow flying catkins is the demand of offspring of poplar willow multiply, these flying catkins are the seminal ramification of female tree. In seeing a sky everywhere " wave snow " , with respect to the growth that can know this kind of tree ability has many strong, this also is in those days many northern cities grow the throughout the country extensively one of reasons of poplar. It is with Beijing exemple, put forward to always can be planted after 1955 on the road of the tree, should plant on tree, build windbreak solid sanded greenbelt, also accord with the need that urban afforest builds. The afforest tree of make choice of has 4 kinds at that time: Silk tree, ash, maple poplar, pagoda tree.

After the course is cultivated on the spot, of poplar fast unripe, be able to bear or endure arid, fight go against a gender to wait for an advantage by force, let him very quickly show itself from inside these tree.

Fast what unripe afforest tree plants is large-scale cultivate these cities what big bring inside short time is green shade, up to now, area of Beijing town planning building still has willow to plant female trunk of a tree 2 million individual plant (the seed that is them lets elfland of Beijing citizen place oneself oh) . Regrettablly the person at that time did not think of, willow flying catkins can bring so big impact to the person.

Accordingly, arrived every year 4, May, when these " old friend " arrive again visit " flying snow of all over the sky " when, around " willow flying catkins " the topic that how governs is placed before us again. So much flying catkins appears in the city, be in charge of with respect to nobody?

Actually, when willow flying catkins brings a worry to common people life, each cities had begun to study the way to deal with a situation actively, take Beijing for, processing willow flying catkins this problem, what had had 10 one's remaining years is long. The course fumbles for years, summary gave a few way:

Block up: Show fountainhead is controlled, whole " 935 " period, in project of construction of afforest of each Beijing gardens, will use willow to plant female trunk of a tree no longer, build urban afforest project to will cultivate female individual plant to undertake controlling to willow. Change: Have two meanings. On one hand, to having security the willow with hidden trouble, bad the way corp is growing plants female trunk of a tree, chummage wanting a written guarantee builds an old old village that have to transform, change for not the tree of flying catkins is planted. On the other hand, give tree " metamorphic " , in limb of male of the engraft on the female individual plant that produces flying catkins. Long: Exuberant to the way corp is growing, truncal in the 30 large trees to 50 centimeters, also can use " long " method, clip branch, reduce flying catkins amount. Gush: Be in annual April flying catkins fastigium, bureau of Beijing gardens afforest will combine the job such as prevention and cure of plant diseases and insect pests to cultivate female individual plant to have high-pressured gush water to willow, through " gush " reduce flying catkins effect. Inject: Through " curb spends " bud depressor will control willow flying catkins, this kind of method can restrain the flying catkins of 90% .

Simple understanding, the seed that what that is to say gives man-made to become a worry is willow tree and be not whole tree, should let them do not produce a seed again only so (may you die without sons) did not go (old cruel) . However we can't help wanting to ask, why to administer method to have, but flying catkins disappears little, is problem of contrary willow flying catkins annual as before? To this, afforest of town of bureau of Beijing gardens afforest grows Yang Zhihua to express everywhere, flying catkins phenomenon is short-term inside impossible eliminate. Flying catkins phenomenon is short-term inside impossible eliminate..

10 come for years year after year of gross of willow tree female individual plant drops, but the existent gross that willow plants female trunk of a tree is very big still. As the tree age the growth of fixed number of year, these willow trees already entered reproductive autumn, flying catkins amount is so larger still.

Greenbelt cultivates pair of willow garrulous to have with all sorts of bush stop apparently action, willow garrulous can stick sticky, adsorption to be on greenbelt, the course blends in the earth after rainwater scrub, the people cannot see almost. But, as urban building district road network is added close, greenbelt decreases relatively, willow garrulous is couldn't get not only stop, in car grind pressure below, can remove rise and fall to fall repeatedly instead, let people produce flying catkins " administer more more " illusive.

Visible, antagonism willow cultivates flying catkins, from the point of now, still be a complex and lengthy process. Accordingly, the shady and cool shelter that enjoying tree to be brought to us and urban scenery when, want to be not bred by theirs behavior is perplexed, still choose an appropriate guaze mask first.

See such response, the young associate that estimates those allergic constitutions is about to cry dizzy in the toilet, because of the person to easy allergy, wave everywhere the flying catkins that come loose, cause skin allergy more likely, serious when still can have asthmatic, chronic bronchitic wait for respiratory system disease.

These methods can prevent flying catkins allergy, everybody mights as well try

◎ cleans nasal cavity everyday

Irritability rhinitis person, or sensitive to pollen, catkin person, clean rhinal 2-3 everyday second. Drugstore, hospital can be bought those who clean nasal cavity is special wash bazoo implement. Or in small suck physiological saline of the mount in crock, pass nose inspiratory, can keep clear of thoroughly the pollen composition inside nasal cavity.

◎ is outdoors take exercise choose pair of time

The person of allergic constitution should be far from catkin and pollen, had better decrease go out, especially asthmatic patient. When wanting to do outdoors activity to reach all sorts of motion projects, choose as far as possible in catkin index lowest when, resembling is early morning, late night, or be one after field is showery.

◎ " arm " good go out again

When going out, had done as far as possible defend. The person of easy allergy should wait for pollen, catkin less to more place goes or wear guaze mask to the park in spring. The lens that wear a look can reduce the chance that your eye is affected, might as well so replace with the glasses that has lens invisible glasses, or it is the sunglass on the belt when going out. Use the friend of the car with report by bicycle, when going out, had better surround on the sunglasses on gauze kerchief or belt, in case eyeball of catkin flying pleasant to see, affect normal travel. Should catkin waves fashionable, must not be kneaded with the hand, conjunctiva of such meeting abrade eye, if catkin enters eye depth, the proposal goes to a hospital in time seeing a doctor, take out the foreign matter, lest be opposite,the eye causes harm.

Before ◎ takes the door, want " install check "

The catkin that before taking the door, must get on the body clears clean, if clear sordid, after taking the door, must clean the clothes that has catkin, the flee hither and thither in the in you bedroom that does not make catkin wanton. After catkin sticks the skin, remember keeping clear of in time, had better wash a face with Wen Shui, lest catkin is lost sight of then filament remains.

Vitamin of much complement of crowd of ◎ easy feeling

Eat a fruit more at ordinary times, 3 eat complement appropriately vitamin C and vitamin E, wait like a variety of Chinese cabbage, tomato, carrot. Child and old person can be taken fight allergic medicaments to undertake precautionary. When cooking, can put bit of ginger more, can help the body inflammation that because allergy is brought about,relieves. Also can prepare candy of a few ginger, eat when snacks, can alleviate effectively hypersensitive shape.

In the phenomenal backside that willow garrulous all over the sky flutters, see urban park plans to need the essential problem of promotion, improvement even. Synchronism of effect a permanent cure of take temporary solution is advanced, short-term measure wins opportunity and time for long-term processing, strive to obtain result inside shorter time, implementation " garrulous won'ts do calamity " .