A sudden move in real estate regulation, combined with anti-corruption reviews, has slowed the advance of urbanization, with green viewing trees, in particular a sharp drop in the prices and sales of the bulk of green wood. However, with the promulgation of a series of ecological civilization-building policies at the central level, the tree industry is still promising。
01class
Demand for greening trees will increase by more than 3 per cent
On 21 february 2016, the central state council of the communist republic of china issued a number of opinions (hereinafter referred to as " opinions " ) on further strengthening the management of urban planning and construction, which outline a road map for the development of cities in china for the 13th and longer periods. Among them, the opinion states that “by 2020, the average network density of urban built areas has increased to 8 km2/km2 and the road area has reached 15 per cent”. However, according to international experience, the most appropriate rate of road space is 20 per cent, which will continue to increase in the future。
Greening urban roads is a priority for greening cities from point to face, and is an important part of building eco-horizon cities in many cities. Thus, an increase of 3 per cent in urban roads would mean a growth of at least 3 per cent based on pre-existing demand, and a net density of 8 km2 would mean that for every 250 m there would be access points, where there would be a need to observe plants, and where low, colourful plants would increase by more than 3 per cent based on pre-existing demand。
Experts predicted that the market for saplings during the 13th and 55th periods would be approximately $150 billion. According to the data, for the period 2011-2015, the average annual greening of new roads in the country is over 100,000 kilometres, at a cost of 500,000 per km, or 30 per cent of the trees used for greening roads。
02class
What kind of flower tree will "do"
The nursery industry has been upgraded to a new stage, requiring medium- and long-term planning and the direction of the development of wood species. The direction is to find a policy in which the tree industry differs from the flower industry and is confronted mainly with urbanization projects, ecology and real estate. So we should look at urbanization construction planning and project arrangements for central and local governments, as well as related policies and developments in the real estate sector。
At this stage, the landscape in most of the country lacks local features and colour. For the first time, g18 raised ecological civilization to the level of national strategy and proposed “building a beautiful china”. The greening of gardens under this concept will change the previously more serious homogenization. It is therefore necessary to fully exploit the rich and diverse seedling resources of the country's specialty plants, flowers, and coloured trees, in order to create eco-friendly, diverse and coloured “beautiful china”。
Analysis of the greening of trees on 10 common roads
I. Suzuki
Suzuki is a plant known as suzuki, suzuki, alias françois, or farsi。
Application prospects:
Suzuki was originally produced in europe and is now widely planted around the world. Su suzuki is glamorous, intolerant, and born of acidic or neutral soils, and although growing in micro-alkalin or limey soils, some areas are prone to yellow leaf disease. More cold, less water, can be used for greening in beijing and south of taipei。
Despite some air pollution, winter springs rarely show fruit and wool, and most of the ball fruit falls with the rain and is less contaminated. The problem of this pollution can be largely addressed by the selection and start to cultivate small-ball fast-growing neptunium trees。
Sullwood leaves are thick, tree crowns are spread, budding strong, trimmed, fumes resistant, few pests and pests, excellent troupe tree species, once dubbed "the king of the walking trees of the world", good shades and mills green tree species, and one of the largest greening applications of urban roads in living areas. In recent years, the prospects for application have remained very optimistic with the need to develop and green small and medium-sized towns。
Ii. Fluffy white wax
Fluffy waxes are wood rhinos, white waxes, alias fluffes, tianjin white waxes。
Application prospects:
Fluid waxes are highly adaptable, warm, wet, cold, flood-resistant, salinist, drought-resistant, growing at 18°c below the absolute minimum temperature, 40 days of immersion in water, 0. 3% - 0. 5% salt and 60 g/l clay of groundwater mineralization. They are highly resistant to pests and harmful gases。
The velvet wax, which is relatively fast, has a long life, has a beautiful tree shape, has a large tree crown, has a strong shade of leaves and is widely used in our north-east and south-west regions. It is an excellent troupe, urban greening and ecological tree species。
Particularly in the arid, rain-poor, colder or high groundwater levels, heavy industrial areas and areas with high saline levels are the preferred tree species for urban greening and ecological protection, recently selected by the chinan garden forest system, and certified by the forestry authority of shandong province as "horticultural wax 1" and "horticultural wax 2", which have a marked rapidity and long growth cycles and have been replicated in the east camp, tianjin, etc。
Iii. The state
It's called "farfly flowers", "faces" and "china"。
Application prospects:
It is temperate tree species, with a mild tolerance of shade, and is born on the sandy, moist, deep, well-watered, sandy, limey and light saline soil, which can grow normally, but is too dry, infertile and windy lowlands。
It is more resistant to sulphur dioxide, chlorine gas and soot. The tree canopy of the nation, its vastness, its shades, its long life and its wide range of adaptations. From the northern part of the country, greening is now common in all parts of the north and south of the country. It is common in the northern plains of china, the yellow highlands, with the yellow river basin at its highest level. It is also the only tree of acacia, which is widely used in our northern cities, and is now the only species of aberrant trees that is in line with such ornaments as dragon claws and gold branches. The prospects for application are wide。
Iv. Silver almonds
Silver almonds are silver almonds, silver almonds, which are unique to our country. They are called "activated fossils", alias baek fruit, male sun tree。
Application prospects:
Silver almonds, suns, shades, colder, drought-resistant, flood-resistant, are not suitable for cultivation on saline soil, clay and low-wet land。
Wide range of climate adaptation, absolute minimum temperature below 32°c, annual rainfall of 600 mm ~ the 1,500 mm is suitable for normal growth from south to south of shenyang, south to north to north to north to north-east, with around 20 provincial (district) cultivation applications centred on jiangsu, shandong, zhejiang, anhui and henan. Silver almond trees are quite spectacular, 40 metres high, with beautiful gestures, foliage, different sizes, and golden in autumn. Slower growth and extremely long life expectancy are highly valued garden greening and troupe tree species with high development prospects。
V. Leaves
The willows belong to the willows and willows。
Application prospects:
The willows are highly water-resistant and are flooded for 160 days, with a retention rate of over 80 per cent. It is more resistant to cold, more saline, more glamorous, fast-growing, shorter-lived, easy to breed, and newer。
Cultivated throughout the country, with the yangtze basin and the plains of the provinces south of it and the north-east and north-west china as the main areas of application, and the area from the south-west valley to 2000 metres above sea level, greening is also more common。
The young and late willows, the soft and thin branches, and some varieties of branches of gold, the breezes, whether spring or summer or autumn, are naturally glamorous and beautiful, and most suitable for greening on the banks of rivers and lakes, not only in beautiful landscapes and shades, but also as important species for wind-proofing sands and maintenance of the embankments, as they are the males of spring that do not fly. Willows are one of the first tree species to be planted and greened。
Vi. Join
♪ accompanies bean, accompanies, alias bouquets, night ♪。
Application prospects:
It is not as cool as it is, and beijing and the north are vulnerable to freezing. More adaptive soil, drought-resistant, poor sandy soil, saline-resistant, intolerant, wet, well-watered, fertile soil, root tumors and the ability to improve the soil. Insatiable shears, incubation, low resistance to pests and diseases, and high resistance to hydrogen chloride and nitrogen dioxide。
The provinces (districts) of our yellow river, yangtze and pearl river basins are more environmentally green and beautiful. The pre-celebratory period grows fast, the tree canopy is wide open, like a pavilion, a fiery leaf, day and night, red and pink bouquets open in the summer, long flowers, beautiful and beautiful, and the rare tree of wood viewing. The greening of gardens, beautification and the planting of walk trees offer better prospects for development。
Vii. Such jang
Mao bai yang shall be yang luko and yang yan。
Application prospects:
The luminous and warm and wet climate is more cold, drought-resistant and has a wide range of applications, which can be used for greening at the lowest temperature of 32. 8°c, in valleys with annual precipitation of 300 mm to 1,300 mm and below 1,500 m above sea level and in plain areas。
But in high-temperature, rain-fed climates, pests and pests are prone. The mao liang, a country unique to the northern part of the country, is an excellent green tree, a rare high-road tree, suitable for greening roads, greening "neighbors" and the use of tree species, in particular male species such as ru mau 50, have great potential for application in the greening of towns。
Viii. Problems
Maple yuan bao, alias penang maple, belongs to the zhui tree。
Application prospects:
Treasures are temperate tree species, with a little obscurity, which adjusts to temperatures below 25°c. The roots are well developed and resistant to wind and can be planted in arid, infertile, acidic and micro-alkaline soils。
Maple trees are beautiful, thick leaves are thick, the palms of the leaves are fractured, leaves become yellow or red after fall, and in the greening of the city and in the planting of walk trees, they are grown in pairs with other colours of the leaves or trees of the usual green, and they are shown in red and green, with each other's beauties。
Maple yuan is an important tree for the creation of landscape forests, walk trees or protected forests, and is known as the red leaf of the west mountain in beijing. The maple is suitable for cultivation in the north and is more widely used in beijing, hebei, jiangxi, shandong, henan, shaanxi, liaoning, etc。
Ix. The hole, the hold of the hang
The tree, the yellow mountain tree, is a disease-free child and belongs to the tree。
Application prospects:
The trees and the yellow mountains are more adaptable, radiant, half-obscurant, and resistant to cold (the yellow mountains are poor), drought and infertile. Proactive to lime and saline soils and resistant to short-term flooding, strong budding, faster growth, and stronger wind and dust resistance。
Vegetable leaves have sawn teeth or fractures, which are slightly less dry; yellow hills have full edge, are more dry, and young trees are born faster than eucalyptus and are also known as full lobes。
The tree is born in the yellow river basin; it is born south of the yangtze, south of guangdong, north-west of guangzhou, south-west to guizhou, and can be used for greening in anhui, henan, hubei, jiangsu and south-eastern shan。
The tree, the yellow mountain, is a species of viewing trees that are both flowerable and fruitable, the golden-coloured cone of the summer is covered with tree roofs, with flowers open for 60 to 90 days, the autumn and winter triangles of omelet, orange red or red brown, like lanterns, never falling through winter, from far away, a golden yellow or orange red, and, to a great extent, gorgeous and spectacular, is the preferred greening, beautifying tree species, suitable for the greening of the walker or courtyard, and good water and soil conservation of tree species. The prospects for application are wide。
X. Stinky
The stench is bitter, stench, alias scab. The stench's variants are a thousand head, red leaf, etc
Application prospects:
Stinky is deep-rooted tree species, with obvious roots, side roots, drought, infertile, intolerant and wet, and long-term water accumulation causes death. Moderate salin tolerance, which is more chilly, adapts to the climatic conditions of soil with 0. 3% salt and a maximum temperature of 47. 8°c and a minimum temperature of 35°c。
The stench is a positive tree species, glamorous, with few pests and pests, and is particularly resistant to smoke and sulphur dioxide. Stinky sorghum trees dry up to 30 meters. Red leaves are red, and spring and summer are spectacular. A thousand of them are thick and crowned, and the shade is covered。
