What is the barrier brick cement in the big tree?Garden expert response: This is a "earthwork" commonly repaired tree body

Recently, a worker who inadvertently photographed a netizen in Xuzhou caused a heated discussion on the videos of repairing tree holes by the road. Obviously it is just ordinary greening and maintenance. Why do netizens interested? It turned out that in the video, the workers put the bricks in the hollow tree hole and built a layer of cement outside. This magical operation made netizens puzzled, and tens of thousands of netizens conducted fierce discussions in the comment area. Some netizens vividly compared it to the tree to "bridge the heart", and some netizens joked: This is the typical "tree industry has brick attack".

Are these filled materials be brick cement? What is the real role? With these questions, the reporter interviewed relevant experts from Xuzhou Garden Center.

Filling the cement brick for the tree, it was originally a "earthwork" that fills the tree hole

"Cement mortar nourishing tree hole is a" earthfall "commonly used in garden greening to repair the trunk. On the one hand, it blocks external rainwater into the tree hole and delays the internal wood of the trunk. It can also play a role in preventing and treating diseases and insect pests. "Li Jinyi, a senior engineer of the Xuzhou Garden Construction Management Center, said that there are many reasons for the empty trunk, including the age of tree age, long tree age, weak growth, diseased and insect pests and other erosion. Essence After the empty hole appears, the decaying tree is generally cleaned up, sterilized and disinfected, and then the empty hole is severely filled to determine that the dead trees will be replaced.

In traditional repair materials, cement mortar is generally selected for filling. This method does not cause any damage to the trees itself, and the cost is low, and the maintenance time is relatively long. In addition to filling in this high cost -effective choice with cement bricks, there is another "high -end advanced version" method -filled with a new type of polyurethane foam sewing agent, and then the trunk surface is pasted with simulation bark. "The use of this means to repair the tree hole can make the filling and the tree closer, not only the effect of anti -corrosion, insect -proof effect, longer maintenance, but also to restore the original 'beauty before the trunk damage. '. "Li Jinyi said.

New tree species instead of traditional tree species, the city is full of landscapes everywhere

After identifying, Li Jinyi confirmed that the tree species repaired in the video was willow. She said that the willow tree, as a common variety of sidewalk trees, has the advantages of large crown, thick tree shade, rapid growth, and long green leaf period, but it is also susceptible to the erosion of pests and insect pests, producing the empty trunk in the video.近年来，徐州园林部门在不断尝试引进适合徐州自然环境条件的新品种，目前，徐州常用行道树品种越来越丰富，其中包括法国梧桐、银杏、栾树、重阳木、三角枫、悬铃木、国槐、 There are more than 30 varieties such as Gao Ping Valve and Guangyulan.

The reporter learned that Xuzhou followed the three principles in the choice of lane tree species. The first is to prioritize the tree species that are neat, large -shaded, trunk, and easy to maintain, and easy to maintain. The second is to adhere to the principle of suitable trees and decoction, choose tree species that can adapt to the conditions of roads, stable growth, high ornamental value, and good environmental benefits, promote the diversity of species, and enrich the effects of road landscapes. The third is to fully consider the changes in seasons and hue, while providing convenience for citizens, focusing on color changes. Such as the Yellow River West Road, Wangling Road, Fuxing South Road, etc. are mainly French sycamores, Kunlun Avenue, Hanfeng Road are mainly ginkgo, Zhongshan South Road, Pentium Avenue, etc. are mainly Luanshu, and the east extension of Jin Shandong Road is dominated. Three -ring west road uses color leaf tree species such as non -sufferings, which enriches urban road landscapes.

The maintenance responsibility system, the big tree also has "private housekeeper"

The richness of trees also puts forward higher requirements for maintenance management. According to reports, in February this year, Xuzhou has introduced the "Standards for Gardening Greening Conservation and Management", which not only clarifies the content and requirements of garden greening maintenance management, but also formulates detailed operating specifications and processes in all aspects involved in the maintenance management institutes. Essence The introduction of the "Specifications" supplements the overall framework of Xuzhou's urban green space maintenance industry. It can not only be used as the basis and standards for identifying the responsibilities and obligations of the responsible person for maintenance management, but also punish illegal acts that occupy green and green, and do not treat greening and maintenance. In place, the responsibility of nourishment and the performance of inadequate in place is restricted.

For famous trees, the city's garden departments conduct investigations and appraisers, graded numbers, registered books, and establish files in accordance with the national unified standards. The maintenance responsibility system is also implemented. Each ancient tree is divided into a clear maintenance responsible unit or person in charge in accordance with regulations. The units and individuals with significant results will be given to commendation and rewards. If the name of the ancient trees is caused by the regulations, the name of the ancient trees and the death of death shall be punished in accordance with the law.

Yangtze Evening News/Zi Niu News Reporter Zhao Tian

Edit: Qin Xiaoyi

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