[Perspective Club · Ecological Supervision] 115 trees and 84 dry!Why does the Indus to the side of the road on the side of the road frequently die?

Why did the Indus trees die so much? After the summer, the sycamore trees on the roadside were lush and lush, and the pavilion was like a lid, but it was mixed with a lot of dead trees in this emerald green, and the number was puzzling.

Picture source: Beijing Daily

The roadside sycamore is dry in large areas

In the green belt in the middle of the road on the road, Indus and Guohuai are the protagonists in the sidewalk trees. Every year to June, the sycamore trees have long been leafy, and the green shades are covered. But at this time this year, this green onion is unlike -every tens of meters will see a dead tree, and even some road sections are dying.

Picture source: Beijing Daily

Some dead sycamores are bare from the trunk to the branches, and there are many small balls that are settled last year; more dead trees are a stubborn state of life. Bud, a few leaves. The reporter walked from Long Dezi to the intersection of Taipingzhuang Middle Street. The section of more than 700 meters. On the side of the road alone, there were 27 dead trees.

There are many sycamore trees on both sides of the Qinghe Binhe Road. At the road in front of Zhongyin Hotel, sycamores are also planted between the two intersections. The sycamore trees are more serious. The reporter counted it. On the south side of the road, there were 115 sycamore trees in the road section of about 1.4 kilometers, of which 84 were dry.

Picture source: Beijing Daily

On Tongma Road, people also found that there are a lot of dryness in the sycamore trees here, roughly, and more than 20 trees.

Who is the "culprit"?

What caused the death of the sycamore tree? Media reporters dialed the 12345 hotline as a citizen, and the road maintenance department responded. It turned out that the tall and tall sycamor tree was actually a little coquettish. The death of the sycamore trees of the sidewalk is not a new phenomenon that appeared this year, but the number of previous years is small. There are one or two trees on the road, which is not noticeable. This year, it has caught up with the "big year".

According to reports, on the urban roads in Beijing, most of the sycamores of the sidewalk are French sycamores. This is a tree species introduced from abroad, which has high requirements for soil and temperature. Yue Feixue is not unusual. During the transition of winter and spring, the temperature fluctuated violently, causing some sycamore trees to drill late and slow the buds slowly. The roots of Fa Tong are widely surrounded by stone bricks when planting on the side of the road, limiting growth. These will adversely affect its growth. The phenomenon of death of French Tong this year is even more prominent, the main reason is the fall of spring in March this year. The reporter found that on March 18, Blizzard started in Beijing, with the highest temperature of only 2.5 degrees, breaking the low temperature record in the same period in the past 30 years. In addition, the snow -melting agent used in order to clean up snow will also affect the recovery of the sycamore trees.

Although the roads on the roadside died a lot, the sycamores in the parks or communities were still leafy.

Picture source: Beijing Daily

Liu Yong, a professor at the Forestry College of Beijing Forestry University, said: "This actually has a lot to do with the snow -made melting agent. In winter, the cleaner often puts the cleaning of the snow piles around the root of the tree. At that time, the sycamore trees were in a dormant state. Water absorbs. When the early spring sprouts, the moisture in the root begins to transport along the trunk. Sodium chloride and other salts contained in the snow melting agent are absorbed by trees, causing some trees to die. There will be snow melting agents, so the sycamore trees are better, and the sidewalk trees on the roadside will be more obvious. "

At the same place, the gap between the sycamore inside and outside the fence is very large.

Picture source: Beijing Daily

Most dead trees can be rescued back

French Indus is also a well -known sidewalk tree in the world. Its leaves are wide, beautiful in shape, full of emerald, and excellent visual effects. Therefore, it is planted in garden greening. "Especially in the southern parts of Jiangsu, Henan and other southern areas, sycamore grows very well. In Beijing, sycamore is also the main sidewalk. The sycamores planted in previous years have grown into large trees with a diameter of more than ten centimeters. It is also relatively strong to adapt to the climate of Beijing; some small trees that are greatly affected by the cold and salt damage are relatively large. "Liu Yong said.

Media reporters saw on Tong Road that the sycamore trees that had fallen off the leaves were "infusion" with medicine bags. In addition, the reporter also found that some dry sycamore trees drilled out new buds and grew some leaves.

Picture source: Beijing Daily

"These sycamore trees are also rescued. Our greening department will also take maintenance measures to promote the slow buds of sycamore trees through transportation nutrient solution, improvement of soil and other methods. It is expected that most trees will be able to slow down next year. The sycamore trees that cannot be rescued will be removed later, and trees are planted again at the original location. "A green expert told reporters that in recent years In the spring, Tong will also fly like poplars and willow trees. Therefore, when new trees are planted, some places have begun to use national locusts and ginkgo instead of sycamores.

"We also reported a step -by -step report on the death of the sycamore trees on the road of Li Tang. After getting the cutting certificate, we will cut dead trees and re -plant the Chinese locust." The staff of the road maintenance department of Changping District said.

(Perspective agency comprehensive Beijing Daily, China Environment Network report) Editor: Cheng Yi

School pair: Wu Yueran

Review: Gong Zimo

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