On April 20 news: green is bottom, yellow, red, purple and so on is daub is on large green curtain on behalf of the nods eyeball pen of "level" appearance! Yesterday, the reporter understands from suzhou city landscaping administration, this year the city of 4 million square meters of new green seedlings 100000 strains of precious tree species, including gingko, elm tree, ulmus parvifolia, purple nan, cedar, thin shell pecan varieties of 15. They all year round or in leaf, or flower, or as a result, will bring the city a more beautiful, add a scenery, let the green suzhou become more ecological and livable.
A soil gave birth to a tree. The 15 kinds of carefully selected precious tree species is a lot of suzhou people familiar native trees, such as the elm tree, wu "ju" in pinyin with "expensive", wu to the somebody else to children and grandchildren a "for" famous, rich constantly "expensive" exquisite "after former ju park" to plant trees in the home. Such as suzhou again love in the house in front of a few given, yulan, meaning "prosperity". And boxwood, plum, pomegranate, wax plum, etc., often in the courtyard, etc., not an enumeration.
Administration of city landscape greening construction, told reporters, head of the city this year to 4 million square meters of new green space will plant 100000 strains selected precious tree species, adjust measures to local conditions in the implementation of the project, is stepping up efforts to formulate specific solution. According to introducing, the city will be built this year precious timber species into forest of 06000 mu, a total of planting precious timber species 1.75 million strains. By 2020, the city's precious timber species will be built into forest of 23000 mu, planting precious timber species 5.83 million strains.
, "said the head of a relatively rare tree species that grows slowly, afforestation cost is high, the effect is also slow. Landscaping department trees will be as far as possible to choose the suitable site environment, and to strengthen the maintenance and allow them to thrive".
The reporter understands, this 15 kinds of rare tree species, in the early stage of the selection "did difficulties" stand out, they are rich canopy line, the seasonal change, good ecological effect, and has high economic benefits and social benefits. Their growth habit, germplasm resources, the use value? Especially what native tree species and their stories and interesting of them? With these questions, the reporter interviewed green management and forestry department, etc., choose the representative of some rare species, we give a brief introduction to the readers.
One, the elm tree
Suzhou people plant trees, pay attention to "after former ju park". Wu Yuzhong "ju", "expensive" homophones, the somebody else people look forward to future generations a "for" famous, rich "expensive".
Elm tree trunk straight, branches pond, according to records, in suzhou at the beginning of the qing dynasty had the elm tree as street trees. Beech trees like warm weather, should be rich, moist soil, is listed as national key protected plants.
Germplasm resources (suzhou) : huashan, fornix mountain, have this kind of wild trees, this kind of trees in the city a total of 109 strains.
Second, the cedar
Folk have "often feed XiangChunTou not disease". Love to eat XiangChunTou old suzhou, after the cedar for pickled in salt, and chopped mix tender bean curd, some sesame seeds oil is poured again. There are other cold XiangChunTou, cedar scrambled eggs, etc.
For tall cedar trees, summer is white, fragrance thick, like light, not resistant to Yin, a hardy, resistance to wet. Lobules lanceolate or elliptic oval oval.
Germplasm resources (suzhou) : wuzhong district xiangshan street for productive cultivation. Sun shan in the zone 1 strain is relatively bulky.
Three, ginkgo
Ginkgo, known as living fossil of the plant kingdom, slow growth, long service life, general growth after decades began as a result, it is also called "the sun tree," the so-called "grandfather planted trees, grandson to eat fruit.
Ginkgo thermophilic cool moist, material is qualitative soft, flexible, easy to machining, luster, for construction, furniture, interior decoration, sculpture, etc.
Germplasm resources (suzhou) : the city has this kind of fomous trees 526 strains.
Four, ulmus parvifolia
Lang elm form of primitive simplicity, germination power, is Sue sent one of the important varieties of bonsai. Autumn leaves turn yellow and red. In the courtyard, garden planting to match with TingXie, rockery.
Ulmus parvifolia material tenacity, straight texture, resistance to water wet, can be used for making furniture, transport, etc.
Germplasm resources (suzhou) : 11 strains in this genus ancient tree, the gusu wuzhong district area, all the 6 strains, 5 strains.
Five, nanjing linden
Ancient times, nanjing linden and ginkgo is regarded as representing the will of the gods along with all the "tree", so it is also called bodhi tree, and Buddhism has deep roots.
Nanjing linden blade round, summer flower, blooming week, like light, more resistant to Yin, xi moist, fertile sandy soil, a hardy, grew more slowly, for the national key protection of endangered species.
Germplasm resources (suzhou) : only in wuzhong district fornix mountain a thatched shed dock has wild, including 2 strains of ancient trees.
Six, purple nan
Purple nan for evergreen trees, leaf blade obovate to elliptical obovate, glabrous, leaf surface densely rusty hairs on the back.
Purple Nancy warm humid climate and a shade environment. The straight wood texture, fine structure, hard, strong corrosion resistance, such as construction, shipbuilding, furniture material. Close, hard wood, not easily contorts the thick nanmu, since ancient times is the royal palace buildings such as the first choice of wood beams.
Germplasm resources (suzhou) : wild purple nan in suzhou only vault mountain a thatched shed dock, is rare in the province of plant community types. Dongshan one plant has been listed as a fomous trees.
Seven, Chinese catalpa tree
Chinese catalpa tree for deciduous trees, leaves opposite, triangular ovate, apex acuminate, back glabrous, palmate veins.
Chinese catalpa tree wood is hard and durable, good insulation performance, water wet, corrosion resistance, not easy to eat by moth, mainly used for gunstocks, model, ships, and man-made board panels and decorative materials, also can make cars, Musical Instruments, sporting goods and other material.
Germplasm resources (suzhou) : suzhou existing 7 strains of old trees, including changshu, gusu wuzhong district area, 3 strains, respectively, 3 plants, 1 strain.
Eight, thin shell nuts
Thin shell nuts for deciduous trees, up to 50 meters, odd pinnate, lanceolate, oval nut oblong, November 10 - the fruitage ripeness.
And this kind of wood texture, tough texture, is building, war industry, interior decoration and production of high-grade furniture ideal material.
Germplasm resources (suzhou) : at present, the humble administrator's garden, the first people's hospital of changshu east garden planting.