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Tree hole repairing method

A tree hole and bark technology, applied in the field of tree protection, can solve problems such as difficulty in repairing tree holes, and achieve strong adhesion, high strength, and good waterproof performance

Active Publication Date: 2013-04-24
杭州蓝天园林生态科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current common method of tree hole repair is to fill the tree hole with mixed mortar or cement mortar after internal anti-corrosion treatment, and apply cement on the outer layer. After the mortar and cement harden, the expansion and contraction are small, and the tree will still grow, which leads to filling and There is a gap between the cement in the covering part and the tree hole, which cannot effectively prevent external moisture, impurities, and various micro organisms from entering the tree hole, and it is difficult to achieve a good tree hole repair effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An osmanthus fragrans with a breast diameter of 40cm at the Yuhang Zhongtai Nursery Base of Zhejiang New Blue Sky Nursery Technology Co., Ltd. has an irregular tree hole with a diameter of about 30cm at a distance of 50cm from the rhizome. Due to long-term rain erosion and pest damage, the inside of the tree hole is rotten. Gradually deepen. In March 2010, cement-sand-stone mixture was used as the filling method. After repairing it, in September of that year, it was found that the decay site inside the tree hole was still continuing. In October, this method was used for repairing. The specific process is as follows:

[0025] The first step is to remove the sundries in the tree hole; use a scraper to remove the rotten layer until fresh tissue is exposed, and use a brush to completely decompose; scrape off the 3cm wide bark at the edge of the hole.

[0026] The second step is to spray the sterilizing and disinfecting preservative evenly along the inner wall of the tree ho...

Embodiment 2

[0033] In the camphor forest of Zhejiang Xinlantian Garden Tangpu Nursery located in Shaoxing, 10 tree holes with diameters of 5-10 cm and different depths were selected as the research objects, and 5 tree holes were randomly selected to be repaired with this method, and the other 5 holes were repaired with this method. A repair method that uses shavings, wood chips, adhesives, etc. as filling materials.

[0034] This method adopts the following steps to realize:

[0035] The first step is to remove the sundries in the tree hole; use a scraper to remove the rotten layer until fresh tissue is exposed, and use a brush to completely decompose; scrape off the 2cm wide bark at the edge of the hole.

[0036] The second step is to spray the sterilizing and disinfecting preservative evenly along the inner wall of the tree hole, and apply it 3 times with an interval of 20-30 minutes; the preservative is N-(2-benzoimidazolyl)-methyl carbamate with an effective content of 50% , 0.5% of ...

Embodiment 3

[0045] In October 2011, a 200-year-old tree at the southern section of Fengtan Road in Hangzhou was repaired, with a height of about 2m under the branches and a diameter at breast height of 90cm. The rotten surface of the tree was located on the side of the trunk, and the rotten surface reached the trunk 1 / 3 of the surface, and the average depth of decay reaches 1 / 3 of the diameter at breast height. As early as January 2010, relevant departments organized personnel to carry out protective restoration of the tree. The methods used were to remove debris, disinfect, fill with gravel and cement mixture, and apply cement slurry outside. In March 2011, the inspection found that the growth potential of the tree was still relatively weak. Using the growth cone to take materials, it was found that the original rotten part still continued to rot. The reason was that the external cement protective layer did not effectively prevent the intrusion of rainwater, pests, etc. The original decaye...

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Abstract

The invention relates to the field of tree protection and discloses a tree hole repairing method. The tree hole repairing method includes the steps: firstly, removing a withering and decaying layer; secondly, spraying sterilization and disinfection corrosion removers on the inner wall of a tree hole; thirdly, gradually filling tree hole filler into the tree hole; fourthly, after preliminary solidification of polyurethane foam, cutting off the tree hole filler protruding over a tree hole entrance and scraping the surface layer to be flat; fifthly, after complete solidification of the polyurethane foam, uniformly brushing protective agents on the surface; and finally, coating latex and color powder on a protective agent layer, wherein the latex and the color powder are similar to branches and a trunk in color. Polyurethane serving as the tree hole filler is good in water resistance and high in adhesion force and can fill all air gaps by means of natural expansion, so that the filler and a tree body are combined closely and adhered integrally, and seepage of external moisture into the tree hole is prevented; and the polyurethane is high in strength, and accordingly firmness and bearing capability of the trunk and skeleton branches are improved.

Description

technical field [0001] The invention relates to the field of tree protection, in particular to a tree hole repairing material and method. Background technique [0002] Existing big trees, especially ancient and famous trees, form various tree holes in their trunks due to various reasons. The existence of tree holes destroys the normal operation and storage of water and nutrients, and reduces the firmness and load capacity of the trunk. If the tree holes are not repaired in time, it will not only lead to the existence of potential safety hazards, but also cause the death of trees in severe cases. Big trees, especially ancient and famous trees, not only play an important role in their ecological structure, but also have more important historical and cultural significance. Therefore, a tree hole repairing technique with simple operation and remarkable effect is particularly important. The current common method of tree hole repair is to fill the tree hole with mixed mortar or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06
Inventor 刘海琳王振宇赵勋庄洁琰俞成林
Owner 杭州蓝天园林生态科技股份有限公司
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