The Hanoi People’s Committee has just decided to replace hundreds of red maple trees on the median strip of Nguyen Chi Thanh – Tran Duy Hung route. These red-leaf maple trees were tested by Hanoi from January 2018. Nguyen Chi Thanh Street has 119 trees and Tran Duy Hung has 143 trees. As noted by the reporter of To Quoc Electronic Newspaper, on the morning of April 6, many maple trees have withered and lost their life. The red-leaf maple trees have “turned” into dry firewood Only a few green leaves remain Reporter tried to peel the bark of a maple branch and found that the inside was still quite fresh, but the maple tree still refused to “grow leaves”. Originally expected to bring European colors to Hanoi, but, after 3 years, the maple trees were always in a state of withering and bare. Before that, on the evening of June 26, 2020, some maple trees were cut down because of the phenomenon of withering. According to statistics from the Hanoi Department of Construction, 45 trees have died, the remaining 217 trees grow poorly. The Hanoi Department of Construction said that the withered and undeveloped goods affected the street’s landscape. The trees that are still alive have poor growth and development. After a while, leaves wilted, branches and branches were dry and susceptible to pests and diseases, although Hanoi Greenery Park Co., Ltd. has repeatedly sprayed pesticides. To ensure the landscape, synchronize the system of green trees, to meet the aesthetic and urban beauty on the route, the Department of Construction proposes to the People’s Committee of Hanoi City 2 options. Option 1 is to plant to replace the maple tree with all small leaf almond trees, with a trunk diameter of 10-15cm and the height of 6-8m. Option 2 is to plant between a small leaf almond tree with a trunk diameter of 10-15cm, a height of 6-8m and an oil palm tree with a diameter of 40-60cm, a trunk height of about 2m. The planting of replacement trees will be carried out in April 2021 and completed before the holidays April 30 and May 1.

The Hanoi People’s Committee has just decided to replace hundreds of red maple trees on the median strip of Nguyen Chi Thanh – Tran Duy Hung route. These plants were tested from January 2018. In which, there are 119 trees on Nguyen Chi Thanh Street and Tran Duy Hung Street with 143 trees. It is expected to bring the color of Europe in the heart of Hanoi, but after 3 years, the maple tree is always in a withered state. As noted by Zing on April 5, many trees showed signs of dry death. The plants that do better will produce half green, half yellow leaves, lacking vitality. According to statistics, 45 trees have died, the remaining 217 trees have poor growth. Many branches are withered, just a slight impact can also break. Talking with Zing, Mr. Le Huy Cuong, an expert of the Vietnam Association of Forestry Science and Technology, evaluated the characteristics of red-leaf maple trees that are not suitable for the tropical climate of Vietnam and especially in the metropolitan area. market like Hanoi. In temperate countries, in autumn, maple leaves turn red or orange and then fall off when winter comes. However, according to the report of the reporter in the last 3 seasons, this line is always in a state of not turning red and withered. According to Ms. Le Thi Tam, a resident at 91 Nguyen Chi Thanh Street, every few months, the workers remove some dead trees. “These trees only show a few green leaves and just disappear, so they lose their aesthetics and bring no shade,” she said. Previously, at a workshop on trees and lakes in early 2018, the Chairman of the Hanoi People’s Committee at that time Mr. Nguyen Duc Chung said that about a year after planting, the city could completely “tropicalize”. like maple trees and they still bear the same color as when grown in European climates. As an alternative, the Hanoi Department of Construction proposes to plant small-leaf almond trees, 10-15 cm in diameter, 6-8 m in height, or intercrop between small leaf balm and oil palm 40- 60 cm, about 2 m high. The Hanoi Department of Construction plans to plant new trees in April and complete before the holidays April 30 and May 1.

After 2 years of trial planting, the red leaf maple trees planted on the median strip of Nguyen Chi Thanh – Tran Duy Hung routes grew poorly or died dry due to not suitable for Hanoi’s climate.

As reported, Hanoi City People’s Committee Office has just issued Document No. 2788 / VP-DT (dated 2-4-2021) announcing the direction of Vice Chairman of the City People’s Committee Duong Duc Tuan on the replacement plan. The maple tree position is tested on the median strip of Nguyen Chi Thanh – Tran Duy Hung street.

According to Deputy Director of Hanoi Construction Department Nguyen The Cong, 262 maple trees were tested from 2018 on the median strip of Nguyen Chi Thanh – Tran Duy Hung streets, donated to the city by Tan Dai Duong Investment Joint Stock Company. After 2 years, it initially showed that the tree was not adapted to the climatic conditions of Hanoi. 45 trees died, 217 trees lived but poor growth and development. After a while, leaves are wilted, branches and branches are dry and often pests and diseases, affecting the street landscape. In order to ensure the landscape, synchronize the system of green trees, meet the aesthetic and urban beauty of the road, the Department has proposed the City People’s Committee to switch the maple tree and plant it to replace it with a small leaf almond tree.

The planting of new tree systems will be carried out in April 2021 and completed before the holidays April 30 and May 1, 2021.

Later, the tree species is easily confused with red leaf maple

Facing the fact that the red leaf maple goods on the Nguyen Chi Thanh – Tran Duy Hung route die or grow poorly due to the lack of adaptability to the climate conditions of Hanoi … some people wonder why the maple is grown at the Diplomatic Corps (Xuan Tao, Bac Tu Liem, Hanoi) is green again, in winter, trees turn red leaves beautifully?

Many people mistakenly think that the following trees after planting in the Diplomatic Corps are red-leaf maple because of their maple leaf shape and the ability to turn red in winter.

Answering the above question, Assoc.Prof.Dr. Dang Van Ha, Director of the Institute of Landscape Architecture and Urban Greenery, Forestry University affirmed that the crops grown in the Diplomatic Corps area are not red-leaf maple, but tree follows. This native species of Vietnam is being planted widely, from North to South because it has good growth and development, especially in urban areas. In Hue, the latter has been planted for a long time, many trees with a diameter of 60-70cm.

In Hanoi, in addition to the Diplomatic Corps, the latter is also grown in the West Lake, the area of ​​the Korean Embassy, ​​the regulating lake of the Exchange City urban area … The following trees are growing green. well, trunk diameter 20-30 cm, about 6-7 m high.

“The posterior leaves are shaped quite like maple leaves. In winter, they change from green to dark yellow and red, so many people easily confuse them. However, just based on the leaf lobe it is possible to distinguish 2 species. Specifically, the posterior leaves split into 3 lobes and the maple leaf has 5-6 lobes. In addition, the maple tree has no fruit, while the posterior fruit has many soft, pointed spines ”, Assoc. Analysis by Dr. Dang Van Ha.

However, according to experts, just based on the leaf and fruit lobes can easily distinguish these two plants.

According to Mr. Ha, later it can be planted well in urban areas, parks, sidewalks, medians … Trees not only have the ability to grow well, but create beautiful landscapes thanks to the characteristic turning the color of leaves to red. . Young shoots that sprout up right after the leaves fall, are also fancy pink. According to the Institute’s observations for many years, plants do not have pests and diseases affecting humans. After about 50-60 years of growth, the tree has the phenomenon of aging, so it should be noted that dry branches are pruned.

Small leaf wing, why is preferred?

According to both plans to replace the red leaf maple row on the Nguyen Chi Thanh – Tran Duy Hung route, small leaves are selected. Mr. Tran Anh Tuan, Deputy Director of the Department of Maintenance of Urban Technical Infrastructure (Department of Construction of Hanoi), said that the small leaf eagle has been experimentally planted for a long time and brings beautiful landscapes on many streets in the city. Hanoi like Dao Tan, Nguyen Khanh Toan, Kim Ma … Through monitoring, the tree grows and develops well and stably. In particular, this plant has very few pests and diseases, is less prone to breakage during storms, and does not take care of and pruning.

Small leaf balm has been planted for a long time and has adapted well, creating a beautiful landscape for Hanoi.

According to Assoc.Prof.Dr. Dang Van Ha, small leaf eagle, also known as Taiwanese eagle, is a suitable crop in urban areas as well as in many other places. Tree has the advantage of strong root system, less breakage, flexible stem and branches.

“Small leaf balm was imported abroad into our country about 20 years ago, and grown in many provinces throughout the country, including Hanoi. Plants are easy to propagate, grow well, do not pick up soil, and can be grown both in dry places and high water levels. Trees give good shade in the summer. In the southern provinces, in the dry season, the tree often loses its leaves. However, in the North, the tree also loses its leaves, but only for a short time and produces young leaves immediately. Because the small leaf almond root has “floating” properties, it should be considered when planting in narrow streets, which do not affect the quality of the pavement “, Assoc.Prof.Dr. Dang Van Ha said.

For the people of Hanoi, the rows of small green-leafed almond trees planted for many years have become familiar and captured the hearts of many people by the beautiful landscape trees. The trunk grows straight, branches grow horizontally or form to create circular, interwoven canopy, creating shade. The leaf is shiny green and gradually darkens over time, the deciduous time is very short.

There are many suitable advantages that help the small leaf eagle to be selected as a priority for urban crops.

The trial planting of new species of trees in Hanoi is completely normal in order to supplement and enrich the urban greenery system, which plays a very important role in improving and improving the quality of life for the people. However, before trials showed that new species of trees have not been adapted, the replacement with more suitable species is necessary so that the capital city always maintains green, fresh and urban beauty.

Rows of withered red maple leaves on the streets of Nguyen Chi Thanh and Tran Duy Hung.

According to the Hanoi Department of Construction, in 2018, 262 maple trees were tested from the median strip of Nguyen Chi Thanh – Tran Duy Hung streets. In which, Nguyen Chi Thanh line planted 119 trees, Tran Duy Hung line planted 143 trees with the aim of changing the face of the capital. After 2 years, initially showed that the tree was not adapted to the climatic conditions of Hanoi, 45 trees died, 217 trees were alive but poor growth and development. After a while, leaves are wilted, branches and branches are dry and susceptible to diseases.

In this situation, Hanoi City People’s Committee has recently approved the Department of Construction’s proposal to replace the row of red-leaf maple trees on the median strip of Nguyen Chi Thanh – Tran Duy Hung streets with small almond trees, body diameter 10 – 15cm; Top height is 6 – 8m. The replacement of the new tree system on the median line Nguyen Chi Thanh – Tran Duy Hung will be implemented in April 2021 and completed before the holidays April 30 and May 1, 2021.

According to experts, the small leaf almond tree has been planted by Hanoi City on the roads such as Nguyen Luong Bang, Tay Son, Xa Dan, Kim Ma … After a period of planting, the small leaf almond tree grows stably and appropriately. with urban space. This plant is less susceptible to pests and diseases, less defoliation, easy to grow, and does not take much care. The stalk is straight, the eagle leaves are green, and the canopy is wide. Trees create shade for the summer and bring a green landscape to the capital.

Meanwhile, the red leaf maple tree is not suitable for planting in Hanoi, the tree is only suitable for temperate climate conditions, cold weather while our country is a tropical climate, hot weather, heavy rain. When implementing the project of planting red-leaf maple trees, it was too hasty, not to plant 1-2 trees first but planted right on the median strip of Nguyen Chi Thanh – Tran Duy Hung route in large numbers. Therefore, the situation of dead trees and poor development has affected the landscape of the road as the gateway to the city heavily.

“In the old days, everyone expected that the red maple tree orchard would make the Nguyen Chi Thanh – Tran Duy Hung route the most beautiful route in Hanoi. But the maple tree could not withstand the extreme weather and kept dying and withering gradually. People like me find that the city just grows plants that can survive in climatic conditions such as small leaf almond tree or sesame buds, “said Linh.

The replacement of red maple trees on Nguyen Chi Thanh – Tran Duy Hung street is suitable and necessary to restore the urban beauty of these two routes. New tree planting projects should be implemented synchronously, but the project should be conducted carefully and in no hurry to ensure the best results.

The small leaf almond tree is a suitable tree for growing in urban spaces.

The green tree company as well as related parties need to pre-test the new tree thoroughly before planting it on main roads of the capital so as not to happen the situation of dead trees and poor growth. At the same time, attention should be paid to choosing suitable urban greenery that can withstand the tropical climate to develop and grow well.