Nanjing eucalyptus storm survey: construction waste underneath the street

There is a lesson in the drama

Digging the scented pods and planting the scented pods have recently attracted much attention. A lot of media and netizens asked: Dig out the citron and still plant the citron, toss the money to play it? Even bluntly, this is a refreshing old habit of burning money for a show, hoping to “don't let eucalyptus grow awkward in greening and corruption”.

The construction agency Nanjing Yuhuatai District Construction Bureau insisted that this is a greening and rectification operation. The removal of the poorly growing sinensis eucalyptus trees was replaced by large and tall citron trees, which could enhance the environmental quality of this landscape avenue.

What is the "money-burning game" or a necessary environmental rectification? In the past few days, the reporter conducted a special investigation.

Tracking: Where does the construction waste come from under the root?

The reporter went to the site to inspect. The location of the tree removal was actually on Yuhua Avenue. The elevated road at the center of the road was the “airport road”. This road connects Lukou Airport and South High-speed Rail Station. It is the “South Gate” of Nanjing and is known as the “Provincial Gate No. 1 Road”.

"To change a tree is not a hot-headedness, but a planned and purposeful rectification operation." Yuhua Cheng, director of the Yuhuatai District Construction Bureau, explained to reporters that this is a necessary passage for entering and exiting the city. In the first half of this year, Nanjing launched a “100-day greening campaign”. Yuhua Avenue is one of the roads for remediation. It replaced the small roadside tree and planted two rows of camphor trees on both sides. The reporter saw that the new tree and old tree planted in the exchange were almost the same in size, standing like a soldier, and the landscape effect was really good.

Yuhua Avenue was built in 1997. The street trees are full of camphor trees. Nearby residents said that before the greening and rectification, the roadside trees on the avenue had become forests, but they were also mixed with trees with small canopies and trees that looked poor and were thin. "It's really unpleasant to see, and it's puzzling - the trees that were planted 15 years ago. Some grow into thick thighs, and some have small arms. It's strange."

“The problem lies in the underground!” Cheng Daowei revealed the answer. They dug out some small trees to find out. When they lifted the tree ball and dug down, they actually dug out construction debris such as stones, broken bricks, and lime. Building waste obstructs the development of the roots of trees and hinders the absorption of nutrients from the ground. Lime also burns the roots of trees. The trees that are planted will naturally not survive and grow.

Helpless: only with the earth with a tree "one pot end"

There are more than 700 roadside trees on Yuhua Avenue, and 141 trees were transplanted, accounting for 1/5. According to the construction department's explanation, because construction waste was discovered under the tree, it was forced to move from tree to soil. Many netizens believe that the greening department decided to remove the tree before digging out the following construction waste. This causal relationship is very important. If it is the former, moving the tree is "correcting for history"; if it is the latter, there will be an argument in the "image project."

Well, since there is a problem with the soil, why is it not to change the soil, but to move trees? “It’s not impossible to change the soil,” explains Qiu Weidong, the supervisor of the greening of Yuhua Avenue. “But the construction waste is pressed under the tree ball and it is difficult to change the soil without moving the tree. Moreover, these trees have grown for 15 years. They are all stiff, and even if they change their soil, they will not catch up with the growth of other trees. It must be a row of trees that are of different sizes and sizes."

Experts from Nanjing Garden Industry Corporation also believe that the growth factors of street trees are very complicated. “Ten fingers have lengths. If you want to be neat and beautiful, changing soil and changing trees will be a fundamental approach.”

Is it not a big price to pay for trees? In response, Shen Zuping of Yuhuatai District Construction Bureau introduced that the transplanted tree of Yuhua Avenue had a diameter of 17cm, a market price of 1,200 yuan, and 141 trees plus labor costs, and spent a total of more than 200,000 yuan. "Not before There were 780,000 yuan reported by the media."

In this way, things have become more apparent: The small trees on the Airport Road have always allowed the construction departments to “grasp the brilliance” and coincided with Nanjing’s “100-day Afforestation and Remediation Campaign”. In addition, the problem of the remaining construction waste under the tree has been discovered. Soil "one pot end".

Reflection: Deep Lessons Behind "Drama"

From the perspective of relevant individuals, the reason why the "Sharon Tree Incident" continued to ferment in Nanjing was that the "moving and picking seedlings" has its own dramatic nature; secondly, the stone bricks were actually excavated under the trees in the street, making people bizarre.

“Actually, the government’s starting point is good and the outcome is good. The media and the public have no doubts. The problem is where? The two sides do not communicate enough.” One expert said that from media reports It is very important to understand the ins and outs and the basic facts; and being good at communicating and explaining in a timely manner is also a necessary step for the government departments, especially the urban construction management departments, to obtain public understanding and eliminate social resistance.

Walkway tree actually excavated construction waste! This shocked the leaders of Nanjing. Mayor Ji Jianye said at the Urban Construction Conference on May 29th that cement can be planted on the ground to plant trees. So irresponsible, "Go back and investigate clearly, I will wait for you to reply!"

The Yuhuatai District survey found that Yuhua Road Construction Co., Ltd. was built by Ningyu Construction Engineering Co., Ltd. 15 years later, the company had already restructured and the responsible person retired. Ai Changqing, the deputy head of the district, said that no matter how serious or difficult it may be, it must be investigated thoroughly to recover the economic losses. At the same time, the inspections of the afforestation departments will be carried out in detail and supervision loopholes will be investigated.

As the director of district construction, Cheng Daowei believes that road greening is a hidden project and a tail-end project. In the past, it was a period of grabbing and a perfunctory act. The cement blocks under the tree pools on Yuhua Avenue are likely to be the two limestone soils that have spread over the fast lane. They have neither cleaned the site nor dug deep into the trees, and they have planted trees in a hurry. "To learn from the lessons learned today, in addition to project supervision, the greening project has also sent out supervisors. One tree hole and one tree hole to see if the quality of the construction is poor is included in the tender's 'black list'."

"This move to the tree is also a lesson for our front-line administrators." Shen Zuping said that front-line management is often seen as "rough" without much technical content. In fact, its process control and detail management are very important, such as digging. Pits should be deep and old, nutrient soils with different tree species, and the tree pool should be made to be large and breathable, and post-maintenance should not be stopped, etc. "Every link can't be sloppy!"

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