CN107926435B

CN107926435B - Method for replacing old roots with new roots cultured on trunk and repairing trunk lacking bark by culturing new roots

Info

Publication number: CN107926435B
Application number: CN201711186598.8A
Authority: CN
Inventors: 王黔萍
Original assignee: Nanjing Kesen Extrusion Equipment Co ltd
Current assignee: Nanjing Kesen Extrusion Equipment Co ltd
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2021-02-02
Anticipated expiration: 2037-11-21
Also published as: CN107926435A

Abstract

A method for culturing new root to replace old root and repairing trunk includes such steps as cutting or punching on trunk to grow new root, replacing old root with new root, growing a row of new roots on the trunk, covering the grown new roots with bark, fixing the grown new roots to the position where the trunk lacks bark, and growing root bark and original trunk bark.

Description

Method for replacing old roots with new roots cultured on trunk and repairing trunk lacking bark by culturing new roots

Technical Field

The invention belongs to the fields of maintenance and management of tree growth and treatment of diseased trees.

Background

Trees directly and indirectly foster more than 95% of terrestrial animals on the earth, and human beings move from trees to the ground, since the birth of human beings, in each period of the development of human civilization, the trees play a crucial and extremely important role for the human beings, one of the earliest tools of the human beings is made of a tree stick, the earliest weapons of the human beings are made of wood, the earliest houses of the human beings are built by the trees, the fire used by the human beings for moving to the civilization mark is mainly based on wood as fuel, and the fire is taken by well as the traditional drilling wood, the human civilization mark is yellow revolution-most of agricultural implements are made of wood, the metal smelting of the human civilization mark is based on wood and coal as fuel, the gunpowder invented by the human beings is mainly based on the wood, the earliest component is the charcoal, the starting point of the human industry is based on industrial grain coal, and the vehicle of the human beings is made of wood, the first bridge for mankind to cross rivers is a wood bridge, the first bridge for mankind to conquer rivers and oceans is a wood ship, the best article used in mankind families until ancient times-wood furniture, the best paper-wood pulp paper, and the like.

The tree is a mother-raising of human beings, the human beings are never children in front of the tree, the human beings ask for the tree endlessly, lean against the big tree to enjoy the cool without any time, want to make a living home for the human beings as much as possible, countless designs are made to make the tree grow a beautiful living environment for the human beings, the largest labor of people on the tree is to pick fruits and saw the tree, and the trunk is made into various wood objects, people do a lot of work such as tree raising, tree planting, watering, tree repairing, insect killing and the like on the tree, the work is only to treat a little trees in cities or gardens, and is really a little bit more than the asking for the tree, and the work benefit of people on the tree cannot avoid the harm of the human beings on the tree. Because of the asking and the injury of human beings, the growth of the big tree is far less than the disappearance of the big tree, and the long-life trees are fewer and fewer.

Scientists say that the earth is a living celestial body, the earth is protected by the atmosphere, the earth is not damaged by sunlight, heat on the ground is kept not to be rapidly dissipated, but the forest regulates the climate, blocks the damage of strong wind, reduces the disasters of strong rain, keeps water and soil, shields the sun in sunny days, creates living environment for a plurality of plants and animals, at present, human beings realize the importance of trees to human beings, plant a large number of trees, and take the best way to protect the trees, particularly protect trees in cities and in movable contact with people, particularly protect thick trees and old trees, but the trees have life cycles, only the lives of various trees are different, the most common trees with the age are aged, the barks are aged, the trunks are rotten, the roots of the trees are grown and degraded, no good way is provided for people in the conditions, the barks are seen at present, the trunks of the trees are rotten, the hole is plugged by cement, the cement cannot grow and promote the growth and folding of the tree bark, and the tree trunk can continue to be rotten after the cement cracks and rains and is poured into rainwater. The ficus microcarpa in the south grows aerial roots on the trunk of the branch, some aerial roots grow underground after years and grow into another trunk, the big tree grows better, only the process is long in time and is not always the optimal growth condition, and artificial aerial roots are not seen and reported in cities in the south.

Street trees, square trees and courtyard trees become the favorite of pedestrians and leisure people, and particularly, larger trees, trees with more shady shades in summer and ancient trees with commemorative significance are popular with people. The tree life is long, the tree life in the plants for greening in the city is the longest, people particularly like big trees, the bigger trees and the trees with longer tree ages are more popular, the most trees are street trees, streets in the city are conditioned, or street trees are planted on high-grade roads, but the trees in the city are most damaged; firstly, the trunk is artificially injured, the street trees are injured most artificially, the most injured parts are barks of trunks which are quite high as people, the more the trees are, the more the artificially injured trees are accumulated, the vehicle collision and the instrument collision exist, (the trees in other places are injured little, and the forests hardly exist) at present, the street trees basically depend on the growth of the street trees and the restoration of the street trees, after a plurality of trees are seriously injured, the barks cannot be folded, the wood parts of the trunks losing the protection of the barks for a plurality of years begin to rot, the trunks of some trees are rotten to be hollow, and the serious trees die. Secondly, the tree still receives the harm of insect pest, especially street tree and the square tree that is hot, because people's heat is very loud, almost has not had the natural enemy of insect pest, and urban tree insect pest is managed by afforestation personnel completely, in case the management is interrupted or neglected, serious insect pest also threatens the growth of trees, and often people find that big tree has the insect pest, and the trunk branch has been eaten away by the worm, and more has the strong wind to scrape big tree trunk or big branch and has been cut off, just sees that the rupture department is eaten away by the worm, even people find the insect pest, also sprays the pesticide and kills the pest, also has no way to the trunk that moths is empty. Thirdly, when the big branches are blown off by wind and are artificially broken, and dead branches naturally eliminated at the lowest part of the crown of the big tree are not repaired by people in time, the broken branches are cleaned up and left, so that the bark at the broken branches cannot grow tightly, and the branch core starts to rot at the position for a long time every year and is rotten to the center of the trunk; and the branch remained after repairing the big branch is too long, the branch is withered early, but the branch does not fall off, and the bark cannot grow tightly, so that the branch is rotted from the withered branch until the branch reaches the center of the big trunk. All cities are present for these three points.

The sycamore street trees in Nanjing are many, and are the earliest cities for large-scale planting in China, and many sycamore trees have the growth tree ages of nearly 90 years, because the bark is damaged, the tree with rotten core is plentiful, and in recent years, including construction reasons, big sycamore trees which are eliminated in the year, today it is seen that the cavities of the rotten core of big sycamore are cemented, which is the same practice in many cities, and that there are also plastifoams, the two methods can not make the tree bark fold, only have good appearance, the cement absorbs moisture when meeting rain and evaporates moisture when meeting sunny days, the cement has chemical components, the tree sap in the trunk is affected, a gap is reserved between cement and repaired hole wood, some cement cracks to form a gap, rainwater seeps into the wood trunk of the big tree to rot, and plastic foam is too soft to support the tree to be long and cannot bear the weight of the trunk and branches.

Along with the weather deterioration in recent years, people recognize that the importance of protecting trees and forests is realized, the construction of cities also puts forward the standard of greening, the forest city construction is put forward, the protection trees, particularly big trees, are researched a lot, and a lot of methods and working rules and regulations are provided, i also apply two invention patents to rescue the big trees, and the patent application number is [ the method for manufacturing plastic thermal expansion barrels by using a movable extruder and filling cement to repair tree holes ]; 201710309964.8, repairing the hole of the big tree trunk, the hole will not decay, the bark will be good by the big tree, but the hole of some holes is too big, the bark of the big tree is not easy to be folded, the inventor applies a patent of bark compensation, [ a method of repairing the damaged bark of the big tree by transplanting the small tree trunk for the small tree ] ]patentapplication number; 201710395870.7 the small tree trunk is used for repairing damaged bark and is used at the position where damaged bark is at the high position of the trunk, because the small tree can be alive only when the leaves of the small tree are sunned, the method is not easy to be carried out for damaged bark at the low position of the trunk. The method is characterized in that a large tree entering the senescence period, namely the root senescence, of a large tree with an older tree age is realized, the root senescence is actually realized, at present, no method exists, only one tree is reported, a small ginkgo tree is planted at the root of the large ginkgo tree by a grafting method, the trunk of the root of the large ginkgo tree is planted in a beveling manner on the small ginkgo tree, the root of the small ginkgo tree is used for replacing the old large root of the large ginkgo tree, the theory is feasible, no actual row is seen, the number of small ginkgo trees is needed, no popularization is seen, the workload is large, the time process is long, the failure factor is large when continuous severe weather occurs, and similar reports of other trees are not seen.

Disclosure of Invention

In the tree species for greening in cities, most trunks and branches can root and grow roots, a branch layering rooting seedling raising method and a high-stem layering rooting seedling raising method are adopted, the function of the tree is utilized, the roots are cultured on the trunk on the ground of the roots, and the cultured roots on the trunk replace old aged roots. The trunk with the tree bark is cultivated on the trunk without the tree bark and the trunk with the hole to grow long roots, the grown roots are covered with the lacking tree bark or the hole, the tree root bark and the original tree bark grow into a whole after years of growth, namely, the tree root bark is used for repairing the bark on the damaged trunk, and the big tree becomes a complete big tree.

The method for cultivating new roots on the trunk to replace old roots comprises the following technical processes;

01. selecting time; after 3 months of beginning of spring each year, the temperature is on average rising, branches begin to sprout, or leaves are grown. 02. Selecting a root-growing part; in the range of 10-30 cm above the ground of the root of the big tree, the position of the big root of the tree is avoided, and the position of the trunk where the bark grows well is selected.

03. Cutting the skin and rapidly rooting and rooting; A. vertically cutting off barks with the length of 3 centimeters multiplied by the width of 1 centimeter at a selected determined position, scraping off a tree trunk wood layer with the depth of 0.2-0.5 centimeter, and cutting off barks at intervals of 8-12 centimeters at a circle around the tree according to the diameter of the tree; B. by diameter

The drill bit is used for drilling holes, the depth of each hole is 1.2 cm, the length of each hole is parallel to the ground, each circle of the tree is surrounded by 8-12 cm, each group is drilled with two holes, the distance between the two holes is 3 cm, A, B selects one method, and the post-pouring rooting liquid medicine is completed.

04. Winding a rooting tape for rooting; C. diameter of handle

The straw rope is soaked in fertile mud for more than 12 hours, fished out and drained until no water drops, and then wound around the part of the big tree for rooting and rooting in a circle by circle, the upper part of the cut bark or the punched hole is wound by a height of 5 cm, the lower part of the cut bark or the punched hole is wound by 10 cm, the thin straw rope is wound by two layers or three layers, and the part of the cut bark or the punched hole is exposed to a seam of 1 cm, so that the observation and ventilation are facilitated; D. or other materials which are easy to root, such as straw, wood chips and plastic belts with soil are wound on the skin cutting or punching part, and a little seam is exposed on the skin cutting or punching part, so that the observation and ventilation are facilitated; E. composting and maturing soil from tree roots, the height of the composting and maturing soil exceeds 5 cm of a bark cutting or punching part, soil does not need to be filled into the bark cutting or punching part, C, D, E is one of the methods, a rooting zone is hung in the air, and a moisture-preserving film is wrapped outside the rooting zone to prevent water loss.

05. Managing and protecting rooting zone; the rooting zone keeps moist and is watered frequently, but water can not drip and can not shine to the sun, and a sun-shading measure is taken on the sunny side.

06. Protecting and fixing roots; after one month, new roots grow (different tree species take roots in the morning and in the evening, and the roots are delayed to grow in cold weather), the roots are cultured for 3-5 months, and the redundant roots with poor roots are removed; F. selecting 4-5 roots with good growth vigor at the root cutting part, reserving, removing the rest roots, and maintaining the reserved roots to be good in growth; G. and (4) reserving 2-3 roots in each hole of the punched rooting part, removing the rest roots, and maintaining the reserved roots to be long.

07. Determining a permanent root; H. and determining permanent roots when the new roots grow to be 0.4-0.5 cm thick in diameter or 8-12 cm long, cutting the bark and keeping the best roots at the rooting part, keeping the best roots at the punching part, completely removing the forked roots which are 6 cm at the top of the roots, and maintaining the growth environment of the new roots again. I. In northern China or cold plateau areas, in 10 th ten days, the new roots of the slow-rooted tree species are grown to be 0.3 cm thick in diameter and 6 cm long, and then rooting treatment is carried out.

08. Piling soil on the tree roots; after 10 months, when the temperature is 22 ℃ on average, composting and fertilizing tree roots, wherein the height reaches a rooting zone, the height is 5 cm, the diameter is 10 cm, new roots in the root zone continue to grow downwards into soil, grass ropes and rooting substances are buried in the soil, the grass ropes and the rooting substances are also fertilizers after being rotted, the original soil is piled up and the roots are kept wet, and water cannot be accumulated absolutely.

09. Maintaining for overwintering; after 10 months, the temperature is gradually reduced from north to south to enter winter, new roots, especially tender roots which grow out, cannot be frozen, soil piles are kept wet, but soil cannot be too wet and cannot accumulate water, a layer of soil is added, or straw and other objects are covered for freeze prevention.

10. Continuing to grow roots in the second year; in the spring of the next year, the trees begin to sprout, the antifreezing articles are removed, and the soil is kept wet for further root cultivation.

11. Excavating old tree root rooting grooves; the old tree root soil is directly opposite to the new roots, a long-strip root cultivating groove is dug, a plurality of grooves are dug according to the number of the new roots and the situation of a large tree growing field, 2-4 new roots are cultivated in each groove to grow, the groove is 10 cm deep, 10 cm wide and 60 cm long into a fan shape, fertilizer is added or fertile soil is replaced, the soil is dug to see that bad original trees are poor in root removal, good roots are kept original shapes and do not need to be damaged and broken, and the soil is covered and compacted slightly.

12. Root trimming and root trimming; J. in summer of 5-7 months in the next year, when the growth length of the new roots is more than 15 cm or the diameter is more than 1 cm, removing soil and rooting zone on the raised roots, exposing 5 cm above the new roots, removing the forked roots, allowing the lower roots to continuously grow into the soil dug under the big tree trunk, allowing the tree roots to grow downwards along with the big tree trunk, and enabling all the new roots not to be crossed and not to be overlapped; K. root trimming and root trimming are carried out in 9-10 months when the new roots grow slowly, and the root trimming and root trimming are carried out every other year when the new roots grow slowly.

13. Nursing permanent roots; when the new roots grow below the ground level, soil of the roots on the ground is gradually removed, the fork roots are removed, the root cultivating groove is maintained later, the new roots grow quickly, much and thick, the new roots grow to be 0.8 cm thick in diameter for more than two years, the root cultivating groove can adapt to hot and severe cold, exposed roots do not need special heat and cold prevention nursing, and the new roots can grow naturally.

14. Cultivating new roots again; when the cultivated new roots grow normally, if the new roots need to be added, selecting the parts beside the new roots of the trunk, repeating the thirteen items, and cultivating the new roots, and paying attention to the fact that old barks of old trees are kept intact.

15. Burying new roots in the soil at the root part of the tree; because the position that the new root was cultivated is close to the horizon, can pile individual soil heap at the root of a tree for pleasing to the eye, bury the new root in soil, the new root function can not become.

Through the rooting and root-raising culture of the new roots, the vitality of the new roots is strong, the old roots can be replaced by the new roots to supply nutrition for the growth of the big trees after the new roots grow for a few years, the new roots are slowly obtained by the big trees in the growth process of the big trees without influencing the normal growth of the big trees, and the big trees can obtain new and more vigorous lives again.

Cultivating new roots on a trunk to repair defective barks of the trunk, wherein the method comprises the steps of cultivating a row of new roots above barks to be repaired, enabling the new roots to grow downwards until the new roots are underground, covering the defective barks with the long new roots, uniformly distributing and fixing the roots at the defective barks, enabling the roots to grow continuously and thick, enabling the barks between the roots and at two sides to be mutually extruded, finally growing into a whole, wrapping the defective barks, and repairing the defective barks;

21. selecting time; after 3 middle of the year, the average temperature rises and branches begin to sprout or leaves grow.

22. Determining a rooting and root-growing point on a defective bark or a tree hole to be repaired; A. determining that the lowest point of the defective bark to be repaired is a bark or a tree hole which is close to the ground by less than one meter, cleaning the xylem of the defective bark, and carrying out disinfection and anticorrosion treatment, wherein the tree hole needs to be filled and repaired at first, and the hole opening of the tree hole is leveled along the trunk; B. the high trunks are cultivated to root, the tree roots are long in cultivation time and several times of others, and the rotten wood layers can be disinfected and antisepticized after the tree roots grow more; and C, in both cases, the good bark at the highest position is determined as a rooting and root-growing point, the branches and leaves on the side of the rooting and root-growing point must grow well, if the difference is, the long branches and long leaves are directionally cultured, and vigorous branches and leaves at other positions are pruned to promote vigorous growth of the branches and leaves on the rooting point.

23. Rapidly rooting and rooting on the defective bark or tree hole; D. vertically cutting off barks with the length of 3 centimeters multiplied by the width of 1 centimeter at a selected determined position, scraping off a tree trunk wood layer with the depth of 0.2-0.5 centimeter, cutting barks at intervals of 4-5 centimeters, and uniformly distributing the barks in the width needing bark supplement; E. by diameter

The drill bit is used for drilling holes, the depth of each hole is 1.2 cm, the length direction of each hole is parallel to the ground, one hole is drilled at intervals of 3-4 cm, the holes are uniformly distributed in the width of the bark to be supplemented, one method is selected from D, E methods, the width of a defective bark or a tree hole is measured, the number of cultured roots is calculated, when the diameter of the tree root is 3-4 cm, the defective bark or the tree hole can be completely covered, and root liquid medicine is poured after root irrigation is completed.

24. Making a rooting block for root cultivation; F. diameter of handle

Soaking the straw rope in fertile mud for more than 12 hours, fishing out and draining until no water drips, cutting and knitting to prepare a rectangular block, adhering the rectangular block to a part of a big tree for rooting and root-raising, firmly fixing the rectangular block, and enabling the upper part, the lower part, the left part and the right part of the bark-cutting or punching part to exceed 5 cm; G. or other materials which are easy to root, such as straw, wood chips and plastic belts with soil are made into rectangular blocks which are adhered to the parts of the cut skin or the punched holes and are firmly fixed; F. and G, selecting one of the two methods, hanging the rooting block in the air to prevent water loss, and wrapping a breathable film outside the rooting block.

25. Managing and protecting the rooting block; the rooting blocks are kept moist and watered frequently, but water can not drip, the sun can not be sunned, sun shading measures are taken on the sunny side, the rooting blocks are prevented from freezing in spring for a short time, and the effect and safety of the rooting blocks with the height of more than 2 meters are observed.

26. Protecting and fixing roots; after one month, new roots grow (different tree species take root early or late), the roots need to be cultured in 3-5 months, rooting blocks are pulled out, when the new roots are checked to grow to be more than 5 cm, 4-5 roots with good growth vigor are selected at the root cutting part and kept, the rest roots are removed, 2-3 roots are kept in each hole at the root cutting part with holes, the rest roots are removed, the thickness of soil is increased at the time, the soil below the rooting blocks is more than 10 cm larger than the root, the thickness is more than 6 cm, the rooting blocks are covered in the rooting blocks to form soil rooting blocks, and the soil rooting blocks are firmly fixed on the trunk.

27. Freezing prevention is needed in winter; in the Yangtze river basin and the north of the Yangtze river basin, soil can not be frozen in winter, and the Yangtze river basin is wrapped by straw ropes, plastic foams or anti-freezing objects.

28. Determining a permanent root to be cultured; determining permanent roots when the new roots grow to be 0.6-1 cm thick in diameter or more than 12 cm in length, cutting bark and keeping the best two roots at the rooting part, keeping the best one at the punching part, basically uniformly distributing the reserved permanent roots on a trunk or a tree hole needing bark supplement, completely removing the fork roots which are 6 cm at the top of the roots, adding soil outside the soil long root blocks, keeping the length of the rooted soil blocks to be more than 30 cm and the thickness of the soil to be more than 10 cm, covering the soil blocks by using a ventilating container, firmly supporting the container by using rods, and keeping the soil moist.

29. Cultivating permanent roots for a long time; when new roots continuously grow downwards, the soil with long roots is added below the new roots, the soil with long roots is reduced above the new roots, the container for the soil with long roots gradually descends, the supported rods are shortened, the upper roots are gradually exposed, the exposed roots are kept single roots, all forked roots are removed, next, the soil is added below the new roots every 6-10 cm long, soil is reduced above the new roots, the soil is kept wet, all the new roots are cultivated into single roots, the new roots are tightly attached to the trunks or tree holes lacking the bark, the distance between every two roots is kept equal, nails are nailed on two sides of the new roots, and the new roots are positioned to grow.

29B, high-dry cultivating permanent roots; for trunks 4 and 5 meters high lack half of bark to cultivate roots and long roots, the growth time of the roots is long, according to '29. long-term cultivation of permanent roots', the roots can be cultivated to the underground in a long time, and the damaged bark can be repaired by new roots if the roots are cultivated to the underground.

30. Cultivating tree roots and burying the tree roots in soil; the new root grows to the ground for a plurality of years, (the height that the root was cultivated is different, the different root growth speed of tree kind is different, therefore the time that the new root grows to the ground is morning and evening) excavate under the root and educate the root groove, the degree of depth is 30 centimetres, the width is according to how much of new root, length 600 centimetres, the long head is fan-shaped, old tree originally thin root is all removed, let cross the thick root, the inslot adds fertilizer more, the tight soil of lid, the earth of root zone and the soil of digging groove are linked together on the tree, let the fertile soil of new root nature growth inslot, it is just to cultivate how long fast of new root.

31. Fixing the new root of the repaired skin; the method comprises the steps of enabling new roots at a position needing bark repair to be thick to be more than 3 cm in diameter and covering or to be capable of covering the area of the position needing bark repair, uniformly arranging all the new roots, fixing the new roots at the position needing bark repair by using rustproof wood screws or rustproof self-tapping screws with the diameter of less than 0.5 cm and the length of more than 5 cm at intervals of 6-10 cm, drilling small holes by using an impact drill in advance if the new roots are in a tree hole to be repaired by cement, fixing the new roots by using the wood screws or the self-tapping screws, trimming the bark at the lower part of a defective bark or the lower opening of the tree hole into an inclined plane, facilitating the downward and straight growth of the new roots and natural transition of the position where the new roots are attached.

32. Fixing new roots on the good barks; the section of bark from the lower part of the damaged bark or the lower opening of the tree hole to the ground is good, for the sake of attractiveness and integrity, after the repaired bark grows well, the section of new root is fixed on the big tree trunk, the old bark of the big tree is completely repaired, the new root is attached to the growing bark of the tree trunk, rust-proof wood screws or rust-proof self-tapping screws are selected, the new root is fixed on the growing bark of the tree trunk at intervals of 6-10 cm, the position requirement is not strict, the roots and the roots can be scattered, and the tree can grow naturally after being firmly fixed.

33. Cultivating the new root to grow in the soil; in a long time, new roots need to be continuously fertilized and cultivated, when the actual new roots grow to 600 cm in length, the root cultivating groove is expanded by more than 600 cm, the sector is further expanded, the depth is deepened (according to field conditions and growth conditions), and a plurality of fertilizers are applied until the new roots and barks grow into a whole, at the moment, the special cultivation of the new roots is abandoned, and the new roots and the original big tree roots grow as well.

34. The branches and leaves on one side of the cultivated new root are good in length; in a long time in the future, branches on one side of a rooting point are specially nursed, the branches and leaves on one side of the rooting point are luxuriant in length, sunlight is irradiated more, new roots can obtain more nutrition, the new roots are faster to grow, the lengths of other branches and leaves on one tree need to be controlled, and partial branches and leaves are pruned until the new roots and barks grow into a whole.

Through the arrangement, after the new root is firmly fixed, the new root continues to grow, the bark of the new root can wrap the screw cap, the new root is continuously thick, the large bark also grows in the transverse direction, and finally the root bark and the bark are mutually extruded to grow into a whole, the grown bark covers the defective bark, so that the bark of the trunk of the large tree grows into a whole, and the grown large tree becomes a complete large tree. Rooting and rooting on a trunk is a long-time work, and in some years, the work of saving a big tree for decades or saving a big tree for hundreds of years is worth.

Detailed Description

The method for cultivating new roots on the trunk to replace old roots has the advantages that the old trees of a plurality of big trees grow old and have declined growth, wherein the declined roots are an absolute reason.

The detailed description of the technical process of the method for cultivating new roots on the trunk to replace old roots is as follows;

01. selecting time; after 3 months of beginning of spring each year, the temperature is on average rising, branches begin to sprout, or leaves are grown.

The tree root also begins to absorb the work, and the root is easy to grow.

02. Selecting a root-growing part; in the range of 10-30 cm above the ground of the root of the big tree, the position of the big root of the tree is avoided, and the position of the trunk where the bark grows well is selected.

The root growing at the lower part is convenient for the tree root to grow into the underground in the future, and the new root can grow in the soil better by avoiding the big root.

A method for reproducing and raising seedlings by layering branches from ancient times is provided, wherein the vitality of new branches of small branches is strong, the new branches are easy to root and grow roots, a large trunk is a thick trunk and old bark, and the rooting is advanced by adopting bark cutting and scraping, and the bark cutting method is a rooting method developed in recent years on the basis of a bark cutting method (when the bark cutting method is layering rooting seedling raising, a cutter is used for cutting a knife on a bark on branches pressed by soil, and a knife edge is easy to root), the rooting is fast, only the bark cutting opening is too large, the healing time of the bark length is long, and when the rooting and the root raising are carried out on a large tree, the bark can not be selected too much to cut the bark, so that the trunk is prevented from being damaged excessively. The punching method is adopted to root in advance, the damage of punching to bark is small, the loss of sap is less, the small hole growth can be quickly healed when the root of the punched bark with the small hole grows, so that the root can be cultivated by the punching method, and the work is to adopt the quick root cultivating method.

04. Winding a rooting tape for rooting; C. diameter of handle

Once new roots grow out, the roots need to absorb water and nutrients in the water and grow up, so that the rooting zone needs to be manufactured at the beginning, the tree species are different in various regions, the tree growing conditions are different, and various modes can be selected to manufacture the rooting zone.

Regular management and protection of the rooting zone at ordinary times are long-term uninterrupted work and need to be done carefully. Avoid one time of error and abandon the previous work.

It is important to protect the newly grown roots, and to keep the roots good, and to observe, the experience of rapid root growth can be obtained and used on the protected roots.

07. Determining a permanent root; H. and determining permanent roots when the new roots grow to be 0.4-0.5 cm thick in diameter or 8-12 cm long, cutting the bark and keeping the best roots at the rooting part, keeping the best roots at the punching part, completely removing the forked roots which are 6 cm at the top of the roots, and maintaining the growth environment of the new roots again. In last ten days of the month I.10, the permanent root treatment is also carried out on the tree species with slow growth roots, the new roots are 0.3 cm thick in diameter and 6 cm in length, and the good management in the next year is facilitated.

And (3) cultivating the single root at each point on the ground, wherein one root can grow into the ground quickly and then naturally develop into a forked root, and the permanent root needs to be determined as soon as possible and maintained in time.

08. Maintaining for overwintering; after 10 months, the temperature is gradually reduced from north to south to enter winter, new roots, especially tender roots which grow out, cannot be frozen, soil piles are kept wet, but soil cannot be too wet and cannot accumulate water, a layer of soil is added, or straw and other objects are covered for freeze prevention.

The new roots are not cold-resistant, the tender roots can be frozen when the soil is frozen, and the new roots are not afraid of freezing when growing underground.

9. Continuing to grow roots in the second year; in the spring of the next year, the trees begin to sprout, the antifreezing articles are removed, and the soil is kept wet for further root cultivation.

10. Excavating old tree root rooting grooves; the old tree root soil is directly opposite to the new roots, a long-strip root cultivating groove is dug, a plurality of grooves are dug according to the number of the new roots and the situation of a large tree growing field, 2-4 new roots are cultivated in each groove to grow, the groove is 10 cm deep, 10 cm wide and 60 cm long into a fan shape, fertilizer is added or fertile soil is replaced, the soil is dug to see that bad original trees are poor in root removal, good roots are kept original shapes and do not need to be damaged and broken, and the soil is covered and compacted slightly.

Dig and educate root groove and add fertilizer and be exactly in order to cultivate the new root how long soon to grow, cultivate the final purpose of new root and also let the new root grow into the underground natural growth, do not have certain requirement to the size shape in groove, as long as new root can grow well, old root receives the injury minimum, even more dark that the groove can be opened, fertilize more, this also provides the growth nutrition for old root simultaneously, promote the growth that improves old root, the groove sets up the back, let the old root natural growth of new root.

11. Piling soil on the tree roots; the tree root compost is fertile, the height reaches a rooting zone, the height is 5 cm, the diameter is 10 cm, new roots in the rooting zone continuously grow downwards into a rooting groove, the straw ropes and rooting substances are buried in the soil, the straw ropes and the rooting substances are also fertilizers after being rotted, the original soil is piled continuously, the soil is kept moist, and no water can be accumulated absolutely.

The soil is kept moist but cannot be watered every day, 4-10 days are needed for watering once, the watering frequency is high in dry land, the watering interval time is long in cloudy days, and the watering amount is small.

(12.13) new roots growing fast need to be nursed in time, the roots grow normally, the roots are not prone to growing long and thick after being overlapped in a crossed mode, the roots grow into the soil along the trunk of a big tree at an early point, the early point grows naturally, personnel are not separated from the early point, cost is saved, the slow new roots need to be nursed for long-term management with patience, practical nursing is simple, a proper amount of water and fertilizer are supplied, the roots are not damaged, and the roots are not exposed to the sun or cold and frozen, but long-term regular in-place nursing is needed, including sudden weather timely observation and timely nursing.

One big tree can not be cut or punched in a circle, so that the big tree is seriously injured, only a small part of the big tree is damaged, the new roots grow well to play a role in supplying the big tree, the bark on the big tree trunk grows well, and then the next round of new root cultivation is carried out.

The cultivation of new roots is originally below 30 cm, the new roots are buried with earth, small earth piles are piled at the roots of the trees, the method is also a common tree planting method, and large trees except street trees can do the method, which is an option.

Through the rooting and root-raising culture of the new roots, the vitality of the new roots is strong, the old roots can be replaced by the new roots to supply nutrition for the growth of the big trees after the new roots grow for a few years, the new roots are slowly obtained by the big trees in the growth process of the big trees without influencing the normal growth of the big trees, and the big trees can obtain new and more vigorous lives again. Rooting and rooting on a trunk is a long-time work, and in some years, the work of saving a big tree for decades or saving a big tree for hundreds of years is worth.

The difference between the root and the trunk is that the root and the trunk are in soil and in air, the structure is that the bark wraps the wood trunk, so the root can be used as the trunk for cultivation, after the root cultivated on the trunk is grown, the soil on the upper root is removed, the root is exposed in the air, the root can be used as the trunk, the root of some species can grow branches and leaves, most typically, the ficus microcarpa in the south, the branches of the ficus microcarpa trunk can grow aerial roots, the method utilizes the root to have the function of cultivating roots at the high position of the trunk, the grown root can be used as the small branch, and the root used as the small branch is used for repairing the damaged bark of the big tree. And the new root grows downwards, so that the growing position or direction of the new root can be changed artificially to meet the requirement of repairing the bark.

The method for cultivating new roots on a trunk to repair the damaged bark of the trunk is suitable for the damaged bark at the lower position of the trunk and a tree hole at the lower position of the trunk, the distance between the roots growing into the ground is short when the roots cultivated at the lower position are close to the ground, the time for cultivating the roots is relatively short, and the process for repairing the bark is quicker.

Cultivating new roots on a trunk to repair the bark lacking of the trunk, wherein the method is to cultivate a row of new roots above the bark to be repaired, the new roots grow downwards until the underground, the long new roots cover the parts of the defective bark, the roots are uniformly distributed and fixed at the parts of the defective bark, the roots grow continuously and thick later, the bark between the roots and the bark at two sides are mutually extruded and finally grow into a whole, the damaged bark is covered and the bark of the big tree grows into a whole, and the detailed process of the process is that;

The tree root also begins to absorb the work, and the root is easy to grow.

The drill bit is used for drilling holes, the depth of each hole is 1.2 cm, the length direction of each hole is parallel to the ground, one hole is drilled at intervals of 3-4 cm and is uniformly distributed in the width needing to be supplemented with the bark, and one of D, E methods is selected to finish post-pouring of root liquid medicine.

The method for reproducing and raising saplings by layering branches from ancient times has the advantages that the vitality of new branches of small branches is strong, the small branches are easy to root and grow roots, the large trunk is thick trunk and old bark, the rooting is difficult, the bark cutting and scraping are adopted in the place, the rooting can be advanced, the bark cutting method is a rooting method developed in the bark cutting method in recent years, (the bark cutting method is used for cutting a knife on a branch pressed by soil when the layering is used for rooting and raising seedlings, the knife edge is easy to root), the rooting is fast, only the bark cutting opening is too large, the healing time of the bark length is long, and when the rooting and raising are carried out on the large tree, the bark cutting cannot be selected too much, so that the trunk is prevented from being damaged excessively. The punching method can be adopted to root in advance, the damage of punching to bark is small, the loss of sap is less, and the small hole growth can be quickly healed when the punched small hole bark root grows, so that the punching method can cultivate a plurality of roots. This work was done by a rapid rooting method.

24. Making a rooting block for root cultivation; F. diameter of handle

Soaking the straw rope in fertile mud for more than 12 hours, fishing out and draining until no water drips, cutting and knitting to prepare a rectangular block, adhering the rectangular block to the root-growing part of the big tree, firmly fixing the rectangular block, and cutting the bark or punching the root of the big treeOver 5 cm; G. or other materials which are easy to root, such as straw, wood chips and plastic belts with soil are made into rectangular blocks which are adhered to the parts of the cut skin or the punched holes and are firmly fixed; F. and G, selecting one of the two methods, hanging the rooting block in the air to prevent water loss, and wrapping a breathable film outside the rooting block.

The regular management and protection of the rooting block at ordinary times is a long-term uninterrupted work, and needs to be done carefully, so that one-time error is avoided, and the previous work is abandoned.

28. Determining a permanent root to be cultured; determining permanent roots when the new roots grow to be 0.6-1 cm thick in diameter or more than 12 cm in length, cutting the bark and keeping the best two roots at the root positions, keeping the best one at the hole punching positions, uniformly distributing the reserved permanent roots on a trunk or a tree hole needing bark supplement, completely removing fork roots 6 cm at the top of the permanent roots, adding soil outside the soil long root blocks, enabling the length of the soil long root blocks to be more than 30 cm and the thickness of the soil to be more than 10 cm, covering the soil blocks with a ventilating container, supporting the container firmly by using rods, and keeping the soil moist.

29. Cultivating permanent roots for a long time; when new roots continuously grow downwards, soil with long root blocks is added below the new roots, the soil with long root blocks is reduced above the new roots, a soil long root container is gradually descended, supported rods are shortened, the upper roots are gradually exposed, the exposed roots keep single roots, all forked roots are removed, next, soil is added below the new roots every 6-10 cm long, soil is reduced above the new roots, the soil is kept moist, all the new roots are cultivated to be single-branch roots, the new roots are attached to trunks or tree holes lacking skins, the distance between every two roots is kept equal, nails are nailed on two sides of the new roots, and the new roots are grown in a positioning mode.

29B, cultivating permanent root in high dry; for trunks 4 and 5 meters high lack half of bark to cultivate roots and long roots, the growth time of the roots is long, the repeated operation is carried out according to '29. long-term cultivation of permanent roots', and the new roots can repair the defective bark if the roots grow underground after the cultivation of the roots is maintained. During this period, the lower root grows thin, but the upper root is thick, firstly, rust-proof wood screws or rust-proof self-tapping screws are carried out, several screws are firstly fixed on the position of the defective bark according to the content (31), and then, several screws are fixed on the defective bark until the root is thick.

(28.29.29B) care is needed for the fast-growing new roots in time to enable the roots to grow normally, and care is needed for the slow-growing new roots through long-term management and care with patience, so that practical care is simple, the slow-growing new roots are supplied with a proper amount of water and fertilizer, are not damaged, are not exposed to the sun and are not frozen, and long-term regular in-place care is needed, including sudden weather timely observation and timely care. 29B is new root bark supplement cultured on a high trunk, because the time for growing the high root is long, the long root is a biological growth process, uncertain factors are many, it is important to insist on the whole process, emergencies and unexpected weather need to be maintained in time, otherwise, bark supplement is not ideal and even fails due to small problems.

30. Cultivating tree roots and burying the tree roots in soil; the new root of a plurality of years grows to ground, (the height that the root was cultivated is different, different tree species are different fast and slow, therefore the time that the new root grows to ground is morning and evening) excavate under the root and educate the root groove, degree of depth 30 centimetres, the width is looked new root how much, length 600 centimetres, the long head is fan-shaped, old tree original thin root's reservation, poor root is removed, let cross the thick root, the inslot adds fertilizer more, the tight soil of lid, the earth of root piece and the soil of digging groove link together on the tree, let the fertile soil of new root nature growth inslot, it is exactly to cultivate how long fast of new root.

Dig and educate root groove and add fertilizer and be exactly in order to cultivate how long the new root is growing soon, cultivate the final purpose of new root and also let the new root grow into underground after, let the growth of new root nature, do not have certain requirement to the size shape of groove, as long as new root can grow well, old root receives the injury minimum, educates the root groove and also provides nutrition for old root simultaneously.

31. Fixing the new root of the repaired skin; the new roots at the position needing bark repair are thicker than 3 cm in diameter, the area of the position needing bark repair can be covered or is about to be covered, all the new roots are uniformly arranged, rust-proof wood screws or rust-proof self-tapping screws with the diameter of less than 0.5 cm and the length of more than 5 cm are used for fixing the new roots at the position needing bark repair at intervals of 6-10 cm, if the tree hole is repaired by cement, a percussion drill is used for drilling small holes in advance, the tree holes are fixed by using the wood screws or the self-tapping screws, the bark at the lower part of the defective bark or the lower opening of the tree hole is trimmed into an inclined plane, the downward straight growth of the new roots is facilitated, and the natural transition of the position where the new roots are tightly stuck and repaired is,

The bark is repaired or can grow well in the future, the new root and the big tree trunk are fixed together, the new root and the big tree trunk grow naturally, and the new root and the big tree trunk can grow into a whole in a long time.

The root-cultivating groove is enlarged to enable new roots to have better growth conditions, the size and the shape of the groove are not designed, even the groove can be larger and deeper, the groove simultaneously plays a role in providing nutrition for old roots of big trees and promoting the improvement of the growth capacity of the old roots, the groove is only beneficial to the growth of the new roots, and at the moment, the groove works once, and the new roots and the old roots grow naturally as same as each other.

The twigs and leaves are good in growth, and new roots can only grow well, so that the new roots are cultivated at the beginning until all the new roots grow well and succeed in growth, and the new roots are maintained for a period of time later.

Through the arrangement, after the new root is firmly fixed, the new root continues to grow, the bark of the new root can wrap the screw cap, the new root is continuously thick, the large bark also grows in the transverse direction, and finally the root bark and the bark are mutually extruded to grow into a whole, the grown bark covers the defective bark, so that the bark of the trunk of the large tree is integrated, and the grown large tree becomes a complete large tree.

The method is not adopted for valuable big trees, ancient trees, small trees and worthless general trees.

Of particular note are; when the tree leaves of the branches decline and the dead branches and few leaves are not advocated, the method is adopted, the growth speed of the cultivated new roots is very slow, the nutrition fed back by the photosynthesis of the tree leaves is not available, the growth speed of the new roots is very slow, and the method is adopted to cultivate new branches on the root cultivating position at the same time, so that the new roots can grow faster.

The method for rooting and rooting has the advantages of long time, low cost, low workload and only need of long-term observation and maintenance of people, so that the treated big trees are valuable trees, the ancient big trees are not easy to grow at present, people have great feelings to the ancient big trees, the ancient big trees greatly contribute to human beings, the tree shade of the big trees is large, many of the ancient big trees have growth decline, and damaged barks or trunks have tree holes. Rooting and rooting on a trunk is a long-time work, and in some years, the work of saving a big tree for decades or saving a big tree for hundreds of years is worth.

Claims

1. A method for cultivating new roots on a trunk, replacing old roots with new roots and cultivating new roots to repair trunk skin deficiency is characterized in that the method comprises the following steps of (1) cultivating new roots on the trunk, and replacing old roots with new roots;

01. selecting time; after beginning spring 3 months each year, the temperature is averagely increased, branches begin to sprout, or leaves grow;

02. selecting a root-growing part; in the range of 10-30 cm above the ground of the root of the big tree, avoiding the position of the big root of the tree, and selecting the position on the trunk where the bark grows well;

03. cutting the skin and rapidly rooting and rooting; step A, vertically cutting off 3 cm long x 1 cm wide at the selected and determined positionScraping off a tree trunk wood layer with the depth of 0.2-0.5 cm, and cutting off bark at intervals of 8-12 cm at each circle around the tree according to the diameter of the tree; step B. diameter

The drill bit is used for drilling holes, the depth of each hole is 1.2 cm, the length of each hole is parallel to the ground, each circle of the tree is surrounded by 8-12 cm, each group is drilled with two holes, the distance between the two holes is 3 cm, one method is selected in the step A and the step B, and root liquid medicine is poured after the root liquid medicine is poured;

04. winding a rooting tape for rooting; step C diameter of the stem

The straw rope is soaked in fertile mud for more than 12 hours, fished out and drained until no water drops, and then wound around the part of the big tree for rooting and rooting in a circle by circle, the upper part of the cut bark or the punched hole is wound by a height of 5 cm, the lower part of the cut bark or the punched hole is wound by 10 cm, the thin straw rope is wound by two layers or three layers, and the part of the cut bark or the punched hole is exposed to a seam of 1 cm, so that the observation and ventilation are facilitated; d, winding other materials which are easy to root, namely straw, wood chips and plastic belts with soil around the skin-cutting or punching part, and exposing a seam on the skin-cutting or punching part for convenient observation and ventilation; e, composting and fertilizing mature soil from the tree root, enabling the height to exceed 5 cm of a bark cutting or punching part, and enabling the bark cutting or punching part not to be filled with soil;

05. managing and protecting rooting zone; the rooting zone keeps moist, water is usually watered, but water cannot drip, the rooting zone cannot shine to the sun, and a sun-shading measure is taken on the sunny side;

06. protecting and fixing roots; after one month, new roots grow out, the roots need to be cultured for 3-5 months, and redundant roots with poor roots are removed; f, selecting 4-5 roots with good growth vigor at the root position of the bark cutting, reserving the roots, removing the rest roots, and maintaining the reserved roots to be good in growth; g, reserving 2-3 roots in each hole of the punched rooting part, removing the rest roots, and maintaining the reserved roots to be long;

07. determining a permanent root; step H, when the new root grows to be 0.4-0.5 cm thick in diameter or 8-12 cm long, determining a permanent root, cutting the bark and reserving the best root of two branches, reserving the best root of one branch at a punching position, reserving all forked roots 6 cm at the top of the root, and maintaining the growth environment of the new root again; step I, in northern China or cold regions on plateaus, in the last 10 th ten days, the new roots of the tree species with slow growth are grown to be 0.3 cm thick in diameter and 6 cm long, and root fixing treatment is also carried out;

08. piling soil on the tree roots; after 10 months, when the temperature is 22 ℃ on average, composting and fertilizing tree roots, wherein the height reaches a rooting zone, the height is 5 cm, the diameter is 10 cm, new roots in the root zone continue to grow downwards into soil, grass ropes and rooting substances are buried in the soil, the grass ropes and the rooting substances are also fertilizers after being rotted, the original soil is piled and the roots are kept wet, and water cannot be accumulated absolutely;

09. maintaining for overwintering; after 10 months, the temperature is gradually reduced from north to south to enter winter, new roots, especially tender roots which grow out, cannot be frozen, soil piles are kept moist, but soil cannot be too wet and cannot accumulate water, and a layer of soil is added, or straws are covered for freeze prevention;

10. continuing to grow roots in the second year; in the spring of the next year, the trees begin to germinate, the anti-freezing articles are removed, and the soil is kept wet for further root cultivation;

11. excavating old tree root rooting grooves; digging long-strip root-raising grooves in the manner that the soil at the root parts of old trees is over against new roots, digging a plurality of grooves according to the number of the new roots and the growth site conditions of big trees, wherein 2-4 new roots are cultivated in each groove to grow, the groove is 10 cm deep, 10 cm wide and 60 cm long into a fan shape, adding fertilizer or replacing fertile soil, digging the soil to remove bad original tree roots, keeping the original roots without damaging and breaking the original roots, and covering the soil to slightly compact the original roots;

12. root trimming and root trimming; step J, in summer of 5-7 months in the next year, when the growth length of the new roots is more than 15 cm or the diameter is more than 1 cm, removing soil and rooting zone on the raised roots, exposing 5 cm above the new roots, removing forked roots, allowing the lower roots to continuously grow into the soil dug under the large trunk, allowing the roots to grow downwards along with the large trunk, and enabling all the new roots not to be crossed and not to be overlapped; step K, root trimming and root trimming are carried out on the slow growth of new roots in 9-10 months, and the root trimming are carried out every other year on the slow growth of the new roots;

13. nursing permanent roots; when the new roots grow below the ground level, soil of the roots on the ground is gradually removed, the root forks are removed, the root cultivating groove is maintained later, the new roots grow quickly, much and thick, and the exposed roots can adapt to hot and severe cold after more than two years when growing to be 0.8 cm thick in diameter, and can grow naturally without special heat and cold prevention nursing;

14. cultivating new roots again; when the cultivated new roots grow normally, if new roots need to be added, selecting the parts beside the new roots of the trunk, repeating the thirteen items, and cultivating the new roots, and paying attention to the fact that old barks of old trees are kept intact;

15. burying new roots in the soil at the root part of the tree; because the position of the new root cultivation is close to the ground level, the tree root can be piled with soil piles for beauty, the new root is buried in the soil, and the function of the new root is not changed;

16. cultivating new roots to repair the trunk lacking bark, and selecting time; after 3 middle of the year, the average temperature rises, and branches begin to sprout or leaves grow;

17. determining a rooting and root-growing point on a defective bark or a tree hole to be repaired; step L, determining that the lowest point of the defective bark to be repaired is a bark or a tree hole which is close to the ground and is less than one meter, cleaning the xylem of the defective bark, and performing disinfection and anticorrosion treatment, wherein the tree hole needs to be filled and repaired first, and the hole opening of the tree hole is leveled along the trunk; step M, cultivating high trunks for rooting, wherein the half bark of the trunks is damaged from the top to the root in the height of 4-5 m, the cultivation time of the tree root is long, and the rotten wood layer can be disinfected and preserved after the tree root grows more; step N, good barks at the highest positions are set as rooting and root-growing points in both cases, branches and leaves on the side of all the rooting and root-growing points must grow well, long branches and long leaves are directionally cultivated if the growth is poor, vigorous branches and leaves at other positions are pruned, and vigorous branches and leaves on the rooting points are promoted to grow vigorously;

18. rapidly rooting and rooting on the defective bark or tree hole; step O, vertically cutting off 3 cm long at the selected and determined positionMultiplying the bark with the width of 1 cm, scraping off a tree trunk wood layer with the depth of 0.2-0.5 cm, cutting bark every 4-5 cm, and uniformly distributing the bark in the width needing bark supplement; step P. diameter of the tube

The drill bit is used for drilling holes, the depth of each hole is 1.2 cm, the length direction of each hole is parallel to the ground, one hole is drilled at intervals of 3-4 cm, the holes are uniformly distributed in the width of the bark to be supplemented, one of the two methods in the step O and the step P is selected, the width of a defective bark or a tree hole is measured, the number of cultured roots is calculated, when the diameter of the tree root is 3-4 cm, the defective bark or the tree hole can be completely covered, and root liquid medicine is poured after root growth is completed;

19. making a rooting block for root cultivation; step Q diameter of the wire

Soaking the straw rope in fertile mud for more than 12 hours, fishing out and draining until no water drips, cutting and knitting to prepare a rectangular block, adhering the rectangular block to a part of a big tree for rooting and root-raising, firmly fixing the rectangular block, and enabling the upper part, the lower part, the left part and the right part of the bark-cutting or punching part to exceed 5 cm; step R, or other materials which are easy to root, such as straw, wood chips and plastic belts with soil are used for manufacturing rectangular blocks, and the rectangular blocks are adhered to the skin-cutting or punching positions and firmly fixed; one of the two methods in the step Q and the step R is selected, the rooting block is hung in the air to prevent water loss, and a breathable film is wrapped outside the rooting block;

20. managing and protecting the rooting block; the rooting blocks are kept moist and watered frequently, but water can not drip, the sun can not be sunned, sun shading measures are taken on the sunny side, the rooting blocks are prevented from freezing in spring for a short time, and the effect and safety of the rooting blocks with the height of more than 2 meters are observed;

21. protecting and fixing roots; after one month, new roots grow out, the roots need to be cultured in 3-5 months, rooting blocks are pulled open, when the new roots are checked to grow for more than 5 cm, 4-5 roots with good growth vigor are selected at the skin cutting rooting positions and are reserved, the rest roots are removed, 2-3 roots are reserved in each hole at the punching rooting positions, the rest roots are removed, the thickness of soil needs to be increased for the rooting blocks, the soil below the rooting blocks grow more than 10 cm and more than 6 cm, the rooting blocks are covered in the rooting blocks to form soil rooting blocks, and the soil rooting blocks are firmly fixed on the trunk;

22. freezing prevention is needed in winter; in the Yangtze river basin and the north of the Yangtze river basin, soil can not be frozen in winter, and the Yangtze river basin and the north of the Yangtze river basin are wrapped by straw ropes, plastic foams or anti-freezing articles;

23. determining a permanent root to be cultured; determining a permanent root when the new root grows to be 0.6-1 cm thick in diameter or more than 12 cm long, cutting the bark and reserving the best two roots at the rooting part, reserving the best one at the punching part, requiring 3-5 cm intervals for the reserved permanent roots, basically and uniformly distributing the roots on a trunk or a tree hole needing bark supplement, reserving all fork roots 6 cm at the top of the root, adding soil outside a soil long root block, enabling the length of the rooted soil block to be more than 30 cm and the thickness of the soil to be more than 10 cm, covering the soil block with a ventilating container, supporting the container firmly with a rod, and keeping the soil moist;

24. cultivating permanent roots for a long time; when new roots continuously grow downwards, adding long-rooted soil below the new roots, reducing the long-rooted soil above the new roots, gradually descending a long-rooted soil container, reducing the length of a supported rod to expose all the upper roots gradually, removing all the exposed roots, adding soil below the new roots once every 6-10 cm long, reducing the soil above the new roots, keeping the soil moist, cultivating the single-rooted roots, adhering the new roots to trunks or tree holes with lacking bark, and keeping the intervals of all the roots equal;

24B, high-dry cultivation and rooting; for trunks 4 and 5 meters high lack half of bark to cultivate roots and long roots, the roots are long in growth time, and according to 24, permanent roots are cultivated for a long time, and the tree roots are cultivated and grown underground for a plurality of years, and the damaged bark can be repaired by new roots;

25. cultivating tree roots and burying the tree roots in soil; after a plurality of years, new roots grow to the ground, a root cultivating groove is dug under the roots of the trees, the depth is 30 cm, the width is determined according to the number of the new roots, the length is 600 cm, the long head is fan-shaped, original fine roots of old trees are completely removed, thick roots are obtained, fertilizers are additionally added in the groove, soil is tightly covered, soil in a root growing zone on the trees is connected with soil in the groove, and the amount of the fertilizer soil in the groove is increased by the natural growth of the new roots;

26. fixing the new root of the repaired skin; the method comprises the following steps that (1) when the new roots at a part needing bark repair grow to be larger than 3 cm in diameter, the area of the part needing bark repair can be covered or is about to be covered, all the new roots are uniformly arranged, rust-proof wood screws or rust-proof self-tapping screws with the diameter of less than 0.5 cm and the length of more than 5 cm are used for fixing the new roots at the part needing bark repair at intervals of 6-10 cm, if a tree hole is repaired by cement, a small hole is drilled by an impact drill in advance, and the new roots are fixed by the wood screws or the self-tapping screws, so that the bark at the lower part of a defective bark or the lower opening of the tree hole is trimmed into an inclined plane, the downward straight growth of the new roots is facilitated, and the;

27. fixing new roots on the good barks; the section of bark from the lower part of the defective bark or the lower opening of the tree hole to the ground is good, for the sake of attractiveness and integrity, after the repaired bark grows well, the section of new root is fixed on the big tree trunk, the old bark of the big tree is completely repaired, the new root is attached to the growing bark of the tree trunk, rust-proof wood screws or rust-proof self-tapping screws are selected, the new root is fixed on the growing bark of the tree trunk at intervals of 6-10 cm, the position requirement is not strict, the roots and the roots can be scattered, and the tree can grow naturally after being firmly fixed;

28. cultivating the new root to grow in the soil; in the long term in the future, the new roots are required to be continuously fertilized and cultivated, when the actual new roots grow to 600 cm in length, the root cultivating groove is expanded by more than 600 cm, the sector is also expanded, the depth is deepened, and more fertilizer is applied until the new roots and barks grow into a whole, and then the special cultivation of the new roots is abandoned, so that the new roots and the original big tree roots grow as well;

29. the branches and leaves on one side of the cultivated new root are good in length; in a long time in the future, branches on one side of a rooting point are specially nursed, the branches and leaves on one side of the rooting point are luxuriant in length, sunlight is irradiated more, new roots can obtain more nutrition, the new roots are faster to grow, the lengths of other branches and leaves on one tree need to be controlled, and partial branches and leaves are pruned until the new roots and barks grow into a whole.