CN106718596B - Deep water replenishing and rejuvenating device for street trees and construction method and application - Google Patents
Deep water replenishing and rejuvenating device for street trees and construction method and application Download PDFInfo
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- 230000003716 rejuvenation Effects 0.000 title claims abstract description 168
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000010276 construction Methods 0.000 title abstract description 11
- 210000004262 dental pulp cavity Anatomy 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 69
- 239000002689 soil Substances 0.000 claims description 21
- 239000005842 Thiophanate-methyl Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- QGHREAKMXXNCOA-UHFFFAOYSA-N thiophanate-methyl Chemical group COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC QGHREAKMXXNCOA-UHFFFAOYSA-N 0.000 claims description 4
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- 238000005507 spraying Methods 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims 1
- 230000012010 growth Effects 0.000 abstract description 19
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G29/00—Root feeders; Injecting fertilisers into the roots
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Road Paving Structures (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention provides a device for rejuvenating deep water of street trees, a construction method and application. The device is positioned in a municipal sidewalk cushion layer, and a tree pool is also arranged in the municipal sidewalk cushion layer; the device comprises a rejuvenation pit and a plurality of graded sandstone water channels; a rejuvenation substrate layer is filled in the rejuvenation pit and is sequentially divided into a graded sandstone layer and an artificial mixed substrate layer from top to bottom; one end of each graded sandstone water channel is communicated with a graded sandstone layer in the rejuvenation pit, and the other end of each graded sandstone water channel is communicated with the interior of the tree pool; the artificial mixed-base-material layer is characterized by further comprising an observation facility, wherein the observation facility comprises a micro root canal, the bottom end of the micro root canal is located below the artificial mixed-base-material layer, and the top end of the micro root canal is located above the graded sandstone layer. The method has the characteristics of promoting the healthy growth of the street trees, solving the problem of weak tree growth caused by water shortage in the deep layers of the street trees and carrying out regular observation on the rejuvenation effect.
Description
Technical Field
The invention belongs to the technical field of deep water replenishing and rejuvenation of garden trees, and particularly relates to a device for deep water replenishing and rejuvenating street trees, and a construction method and application thereof.
Background
The street trees are trees planted on two sides of a road and in a vehicle dividing zone, shade vehicles and pedestrians and form a street view. Most of the street trees are planted in square tree pools with the depth of 1m and the width of 1.0-1.2m, and the peripheries of the tree pools are bearing roadbeds which are formed by tamping pseudo-ginseng gray soil. As the root system grows and the pedestrians step on the ground, the soil in the tree pool of the street tree is compact, and the water is difficult to seep downwards; meanwhile, the plant root system is hindered from growing due to the pseudo-ginseng gray soil subgrade around the tree pool and is limited to a narrow space inside the tree pool. The special habitat in which the street trees grow causes serious and poor growth of the street trees. The problems of deep water supplement and limited root growth of the street trees not only appear in China, but also are a difficult problem to be solved all over the world, and are particularly prominent in big cities. At present, garden workers at home and abroad try to solve the problems, such as enlarging a tree pool, building a communicated tree pool, changing a pseudo-ginseng gray soil roadbed into a graded sandstone roadbed, even drilling water and air holes in the tree pool, installing a tree root irrigator and the like. However, due to the restrictions of actual conditions such as terrain conditions, road safety, and difficulty in reconstruction, these methods are often unsatisfactory in effect.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a device for the deep water replenishing and rejuvenating of the street tree, a construction method and application thereof, and belongs to a technology for the deep water replenishing and rejuvenating of the street tree and a related rejuvenation effect observation means, so that the aim of promoting the healthy growth of the street tree is fulfilled, the current situation of weak tree growth caused by the lack of water in the deep layer of the street tree is solved, and the periodic observation of the rejuvenation effect can be carried out.
The technical scheme for solving the technical problems is as follows:
a deep water replenishing and rejuvenating device for street trees is positioned in a municipal sidewalk bedding layer, and a tree pool is further arranged in the municipal sidewalk bedding layer; the device for deep water replenishing and rejuvenating of the street trees comprises a rejuvenation pit and a plurality of graded sandstone water channels;
a rejuvenation matrix layer is filled in the rejuvenation pit and sequentially divided into a graded sandstone layer and an artificial mixed matrix layer from top to bottom; the material of the artificial mixed matrix layer is a mixture of organic matters and soil;
one end of each graded sandstone water channel is communicated with the graded sandstone layer of the rejuvenation pit, and the other end of each graded sandstone water channel is communicated with the interior of the upper part of the tree pool;
still including observing the facility, it includes little root canal to observe the facility, the bottom of little root canal passes graded sandstone layer and artifical thoughtlessly joins in marriage the matrix layer in proper order and is located the artifical below of thoughtlessly joining in marriage the matrix layer, and the top of little root canal is located the top of graded sandstone layer.
The invention has the beneficial effects that:
the device has the advantages of promoting water supplement of the deep layer of the street tree, promoting healthy growth of the street tree, solving the problem of weak tree growth caused by water shortage of the deep layer of the street tree, being capable of carrying out regular observation on the rejuvenation effect and the like.
The graded sandstone layer has the main function of promoting the rapid infiltration of water; the artificial mixed matrix layer is mainly used for providing nutrients for the root system, preserving water and promoting the downward growth of the root system.
When the trees in the tree pool lack water, the trees are rooted at the deep part of the rejuvenation pit so as to absorb and utilize the water stored in the rejuvenation pit and the soil around the rejuvenation pit, provide water for the trees in the tree pool to promote the growth of the trees, and realize deep water replenishing of the street trees. The graded sandstone water channel has the advantages of promoting rapid infiltration of water, promoting gas exchange between deep soil and the outside, providing sufficient water and oxygen for growth of the root system of the shade tree and the like.
The root scanner can be sent underground by utilizing the micro root canal, and the soil with the depth of 2m around the micro root canal and the root in the rejuvenation matrix layer are scanned and measured, so that the periodic observation of the rejuvenation effect is realized, and the growth condition and the distribution depth of the root system of the shade tree are quantitatively known.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the width of the rejuvenation pit is consistent with that of the tree pool, the length of the rejuvenation pit is not less than 1 meter, the depth of the rejuvenation pit is 1.2-1.5 meters, and 1.3 meters is the best.
The beneficial effect who adopts above-mentioned scheme is: the size of the rejuvenation pit is suitable for achieving the rejuvenation effect, the area of the rejuvenation pit is too small to be beneficial to practical operation, the rejuvenation effect cannot be achieved, and the road safety can be affected if the area of the rejuvenation pit is too large. In the aspect of rejuvenation pit depth, too shallow can not achieve the purpose of introducing water into deep soil, and too deep can exceed the distribution range of tree root systems, can not achieve the rejuvenation effect, and is not beneficial to site construction.
Furthermore, in the artificial mixed matrix layer, the volume ratio of the organic matters to the soil is 4:6-6:4, preferably 5:5.
The beneficial effect who adopts above-mentioned scheme is: is favorable for further providing nutrients for the root system, has higher water retention capacity and promotes the downward growth of the root system.
Further, the thickness of the rejuvenation matrix layer is 90-120cm, further, the thickness of the rejuvenation matrix layer is 100cm, and the thickness ratio of the graded sandstone layer to the artificial mixed matrix layer is 7:3-1:1; the distance between the upper surface of the rejuvenation matrix layer and the upper surface of the municipal sidewalk cushion layer is equal to 30cm.
The beneficial effect who adopts above-mentioned scheme is:
the appropriate thickness of the rejuvenation matrix layer, the appropriate thickness of the graded sandstone layer and the appropriate thickness of the artificial mixed matrix layer are beneficial to realizing rapid infiltration of moisture and storage of moisture, and simultaneously, the rejuvenation matrix layer is ensured to have certain bearing property, and the safety of the municipal sidewalk pavement cushion is ensured.
The distance between the upper surface of the appropriate rejuvenation matrix layer and the upper surface of the municipal sidewalk cushion layer is beneficial to paving the municipal sidewalk pavement cushion layer, and the safety of the municipal sidewalk pavement cushion layer is ensured.
Further, the top end of the micro-root tube is 10cm lower than the upper surface of the municipal sidewalk cushion, and the bottommost end of the micro-root tube is 2.1m below the upper surface of the municipal sidewalk cushion.
The beneficial effect who adopts above-mentioned scheme is: foretell setting is favorable to installing observation mouth guard well and protects little root canal, ensures the security of little root canal.
Further, still including observing a mouthful protection well, the top of little root canal is located observes a mouthful protection well in, observes a well head department of mouthful protection well and is equipped with the well lid that available special key opened or closed.
The beneficial effect who adopts above-mentioned scheme is: the function of this part is that the protection observation facility can not destroyed by the pedestrian, allows the researcher to open regularly simultaneously, carries out data acquisition work.
Furthermore, the graded sandstone water channel is a non-woven bag filled with graded sandstone.
The beneficial effect who adopts above-mentioned scheme is: when the street trees are irrigated manually, moisture can flow into the rejuvenation pit from the tree pool quickly, and the moisture is promoted to infiltrate into the deep soil without increasing the irrigation frequency of the street trees.
Further, the tree ponds are multiple, the rejuvenation pits are multiple, and the rejuvenation pits are arranged between any two adjacent tree ponds.
The invention also provides a construction method of the deep water replenishing and rejuvenating device for the street trees, which is characterized by comprising the following steps of:
1) Digging a rejuvenation pit in the municipal sidewalk bedding layer to keep the root section of the tree flat;
2) Digging a water passage between the tree pool and the rejuvenation pit, and simultaneously arranging a graded gravel water channel; one end of the graded sandstone water channel is communicated with the rejuvenation matrix layer, and the other end of the graded sandstone water channel is communicated with the interior of the tree pool;
3) Inserting the micro root canal into the bottom of the rejuvenation pit;
4) Burying a manually mixed matrix in the rejuvenation pit to form a manually mixed matrix layer, and burying graded sandstone on the manually mixed matrix layer to form a graded sandstone layer; the bottom end of the micro root canal is positioned below the artificial mixed matrix layer, and the top end of the micro root canal is positioned above the graded sandstone layer.
The beneficial effect who adopts above-mentioned scheme is: the construction method of the device for the deep water replenishing and rejuvenating of the street tree is a technology for the deep water replenishing and rejuvenating of the street tree, can be matched with a related rejuvenation effect observation means, achieves the purpose of promoting the healthy growth of the street tree, solves the problem of weak tree growth caused by the lack of water in the deep layer of the street tree, and performs regular observation on the rejuvenation effect.
Further, the method also comprises the following steps: before the step 4), spraying thiophanate methyl solution and solution containing rooting powder on the root section of the tree respectively.
The beneficial effect who adopts above-mentioned scheme is: so as to be beneficial to the later recovery of the root system.
The invention also provides application of the device for rejuvenating the deep water of the street tree in rejuvenation effect evaluation. The device for water replenishing and rejuvenating of the deep layer of the street tree can be matched with a related rejuvenation effect observation means, so that the aim of promoting the healthy growth of the street tree is fulfilled, the current situation that the growth vigor of the tree is weak due to water shortage of the deep layer of the street tree is solved, and the regular observation of the rejuvenation effect is carried out.
Drawings
FIG. 1 is a top view of a device for rejuvenating water from a deep layer of a street tree according to the present invention;
fig. 2 is a sectional view of the deep water replenishing and rejuvenating device for street trees according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. municipal sidewalk cushion layer, 2 tree pool, 3 rejuvenation pit, 31 graded sandstone layer, 32 artificial mixed matrix layer, 4 graded sandstone water channel, 5 micro root canal, 6 observation port protection well.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the deep water replenishing and rejuvenating device for the street trees is positioned in a municipal sidewalk cushion layer 1, and a tree pool 2 is further arranged in the municipal sidewalk cushion layer 1; the device for deep water replenishing and rejuvenating the street trees comprises a rejuvenation pit 3 and a plurality of graded sandstone water channels 4; a rejuvenation matrix layer is filled in the rejuvenation pit 3, and the rejuvenation matrix layer is sequentially divided into a graded sandstone layer 31 and an artificial mixed matrix layer 32 from top to bottom; the artificial mixed matrix layer 32 is made of a mixture of organic matters and soil; one end of each graded sandstone water channel 4 is communicated with the graded sandstone layer of the rejuvenation pit 3, and the other end of each graded sandstone water channel 4 is communicated with the inside of the upper part of the tree pool 2; still including observing the facility, it includes little root canal 5 to observe the facility, the bottom of little root canal 5 passes graded sandstone layer 31 and artifical thoughtlessly join in marriage matrix layer 32 in proper order and is located the below of artifical thoughtlessly join in marriage matrix layer 32, and the top of little root canal 5 is located the top of graded sandstone layer 31.
The width of the rejuvenation pit 3 is consistent with that of the tree pool 2, the length of the rejuvenation pit 3 is not less than 1 meter, the depth of the rejuvenation pit is 1.2-1.5 meters, and the best effect is achieved when the depth of the rejuvenation pit 3 is 1.3 meters.
In the artificial mixed matrix layer 32, the volume ratio of the organic matters to the soil is 4:6-6:4, preferably 5:5.
The thickness of the rejuvenation matrix layer is 90-120cm, preferably 100cm, and the thickness ratio of the graded sandstone layer 31 to the artificial mixed matrix layer 32 is 7:3-1:1; for example: the thickness of the graded sandstone layer is 50-70cm, preferably not less than 60cm, and the thickness of the artificial mixed matrix layer is 30-60cm, preferably not more than 50 cm. The distance between the upper surface of the rejuvenation substrate layer and the upper surface of the municipal sidewalk cushion layer is equal to 30cm, and 30cm is the thickness of the municipal cushion layer.
The top end of the micro-pipe 5 is 10cm lower than the upper surface of the municipal sidewalk mat 1, and the bottommost end of the micro-pipe 5 is 2.1m below the upper surface of the municipal sidewalk mat 1.
Still including observing a mouthful protection well 6, the top of little root canal 5 is located observes a mouthful protection well 6 in, and the well head department of observing a mouthful protection well 6 is equipped with the well lid, and the well lid is furnished with dedicated lock and the key that matches with dedicated lock, and special key is used for opening or closing the well lid. The special key refers to a lock which can be opened by a worker through the key to prevent other people from misoperation.
The graded sand and stone water channel 4 is a non-woven bag filled with sand and stone.
The tree ponds 2 are provided with a plurality of, the rejuvenation pits 3 are provided with a plurality of, and the rejuvenation pits 3 are arranged between any two adjacent tree ponds 2.
The construction method of the device for rejuvenating the deep water of the street tree comprises the following steps:
1) Digging a rejuvenation pit 3 between the two tree ponds 2 to keep the root section of the tree smooth;
2) Digging a water passage between the tree pool 2 and the rejuvenation pit 3, and simultaneously arranging a graded gravel water channel 4; one end of the graded sandstone water channel 4 is communicated with the rejuvenation matrix layer, and the other end of the graded sandstone water channel 4 is communicated with the interior of the tree pool 2;
3) Penetrating the micro root canal 5 through the bottom of the rejuvenation pit 3;
4) Burying an artificial mixed matrix in the rejuvenation pit 3 to form an artificial mixed matrix layer 32, and burying graded sand on the artificial mixed matrix layer 32 to form a graded sand stone layer 31; the bottom end of the micro root pipe 5 is positioned below the artificial mixed matrix layer 32, and the top end of the micro root pipe 5 is positioned above the graded sandstone layer 31.
Further, before the step 4), thiophanate methyl solution and solution containing rooting powder are respectively sprayed on the root sections.
The invention also provides application of the device for rejuvenating the deep water of the street tree in rejuvenation effect evaluation.
The technical solution of the present invention is described below by one of the specific embodiments.
Examples
As shown in fig. 1 and fig. 2, the device for rejuvenating the deep water of the street tree is positioned in a municipal sidewalk cushion layer 1, and a tree pool 2 is also arranged in the municipal sidewalk cushion layer 1; the device for deep water replenishing and rejuvenating the street trees comprises a rejuvenation pit 3 and a plurality of graded sandstone water channels 4; the rejuvenation pit 3 is filled with a rejuvenation matrix layer. Each part will be described in turn.
The width of the rejuvenation pit 3 is consistent with that of the tree pool, the length of the rejuvenation pit 3 is not less than 1 meter, and the depth of the rejuvenation pit 3 is 1.3 meters. The rejuvenation pit 3 has a main function of burying the rejuvenation substrate while being connected with the water channel.
A rejuvenation substrate layer is filled in the rejuvenation pit 3, the total thickness of the rejuvenation substrate layer is 100cm, the rejuvenation substrate layer is divided into an upper phase part and a graded sandstone layer 31 with the thickness of 50-70cm is arranged at the upper part, and the rejuvenation pit is mainly used for promoting water to rapidly infiltrate downwards; the lower part is an artificial mixed matrix layer 32 formed by mixing organic matters with the thickness of 30-50cm with soil, and the artificial mixed matrix layer is mainly used for providing nutrients for the root system, preserving moisture and promoting the downward growth of the root system. The thickness ratio of the graded sandstone layer 31 to the artificial mixed matrix layer 32 is 7:3 to 1:1. In the artificial mixed matrix layer 32, the volume ratio of the organic matters to the soil can be 4:6-6:4, preferably 5:5.
A graded gravel water channel 4 is arranged from the tree pool 2 to the rejuvenation pit 3. The graded sand-stone water channel 4 consists of a non-woven fabric bag and graded sand stones, and the graded sand stones are arranged in the non-woven fabric bag. One end of the graded grit water channel 4 is provided with a round hard open water port, the round hard open water port is led out from the inside of the upper part of one corner of the tree pool 2 and is used for enabling water to directly flow into the rejuvenation pit from the tree pool during irrigation, and the other end of the graded grit water channel 4 is led into the rejuvenation pit 3 and is communicated with the graded grit layer. The graded sand and stone water channel 4 is led out from the upper part of the tree pool 2, the top end of the graded sand and stone water channel is exposed out of the soil in the tree pool, the graded sand and stone water channel 4 is positioned at one end in the rejuvenation pit 3, the upper surface of the graded sand and stone water channel is positioned below a municipal sidewalk cushion layer of 30cm, and the graded sand and stone water channel can be dug to a position of 40-50cm in depth. The water channel is positioned in the graded sand layer, so that water can flow into the rejuvenation pit conveniently and quickly, and the water channel is dug to the position of 40-50cm deep, so that the height difference of two ends is increased to promote water infiltration, and cold air on the ground surface enters the rejuvenation pit to prevent the root system from being frozen in winter.
The graded gravel water channels 4 may be provided in multiple numbers, for example, fig. 1 illustrates that one rejuvenation pit 3 is provided with four graded gravel water channels 4, two graded gravel water channels 4 are introduced from the left tree pool, and the other two graded gravel water channels 4 are introduced from the right tree pool, although other numbers of graded gravel water channels 4 may be provided according to specific situations.
The main function of the above sections is to introduce the irrigation water in the tree pit into the rejuvenation pit 3. Digging to the position 40-50cm below the upper surface (namely the ground surface) of the municipal sidewalk cushion layer, and mainly aiming at preventing the root system of the tree from being frozen in cold seasons in winter in the north.
The device for the deep water replenishing and rejuvenating of the street tree can also be provided with an observation facility. The observation facility comprises a micro-root pipe 5, the bottom end of the micro-root pipe 5 sequentially penetrates through the graded sandstone layer 31 and the artificial mixed matrix layer 32 and is positioned below the artificial mixed matrix layer 32, and the top end of the micro-root pipe 5 is positioned above the graded sandstone layer 31. Specifically, a micro root canal 5 having a length of 2m was buried in the center of the rejuvenation pit 3. The top of the micro-canals 5 is 10cm below the surface. The micro root canal 5 is divided into three parts from bottom to top, which are the lower part of the micro root canal (the length of the lower part is 80 cm), the middle part of the micro root canal (the length of the middle part is 100 cm) and the upper part of the micro root canal (the length of the upper part is 20 cm), respectively. The lower part of the micro root canal is buried in the soil below the rejuvenation pit 3; the middle part of the micro root canal is embedded in a rejuvenation matrix (divided into an artificial mixed matrix cushion layer and a graded sandstone layer from bottom to top); the upper portion of the micro-root canal is within the administration pad. The lowermost end of the micro tubes 5 is located 2.1m below the upper surface of the municipal sidewalk mat 1. The main function of the device is to regularly observe the growth condition of the root system by using an instrument.
An observation port protection well 6 can be arranged on the basis of the device. An observation port protection well 6 is built at the position of the embedded micro-root pipe 5, and a cast iron well cover with the diameter of 30cm is installed at the well mouth of the observation port protection well 6. The well lid can be opened by a special key. The part has the functions of protecting observation facilities from being damaged by pedestrians and allowing researchers to open the observation facilities regularly to perform data acquisition work.
The pavement tree deep water replenishing and rejuvenating device can be arranged between tree pools of adjacent pavement trees, as shown in fig. 1, the device can be arranged in a manner of one tree pool, one pavement tree deep water replenishing and rejuvenating device, one tree pool and one pavement tree deep water replenishing and rejuvenating device … …, and can ensure that one pavement tree deep water replenishing and rejuvenating device can realize functions of water replenishing, rejuvenation, monitoring and the like for the pavement trees on the left side and the right side.
The construction method of the pavement tree deep water replenishing rejuvenation device comprises the following steps:
1. a rejuvenation pit 3 is dug between the two trees, the width of the rejuvenation pit 3 is consistent with that of the tree pool 2, the length of the rejuvenation pit 3 is not less than 1 meter, and the depth of the rejuvenation pit 3 is 1.3 meters. In the excavation process, the root section must be kept flat, and the situation that the root system is smashed and injured when the blunt instruments such as a spade and a pickaxe are used for breaking the earth is prevented (the root system with the regular section is easy to recover, the smashed and injured root system is difficult to recover, and the later-stage decay is easy to cause the whole plant to weaken).
2. A water passage is excavated from the tree pool 2 to the rejuvenation pit 3, and a graded gravel water passage 4 is arranged at the same time. The graded sand and stone water channel 4 is a non-woven bag filled with graded sand and stone. One end of the graded sand and stone water channel 4 is provided with a round hard open water port which is led out from one corner of the tree pool 2, and the other end of the graded sand and stone water channel 4 is led into a graded sand and stone layer in the rejuvenation pit 3. The upper surface of one end of the graded sandstone water channel in the rejuvenation pit is required to be positioned below a 30cm municipal sidewalk cushion layer and can be dug to a position of 40-50cm in depth.
3. Digging to 2.1m depth at the bottom of the rejuvenation pit 3 by a tool, and vertically embedding the bottom end of a root observation facility (micro-root pipe 5). And filling the original soil to the position 1.3m underground outside the micro-root canal 5.
4. And (3) burying a rejuvenation matrix in the rejuvenation pit 3 to form a rejuvenation matrix layer. The rejuvenation matrix layer is divided into a graded sandstone layer 31 and an artificial mixed matrix layer 32, wherein the graded sandstone layer 31 is positioned at the upper part of the rejuvenation matrix layer, and the artificial mixed matrix layer 32 is positioned at the lower part of the rejuvenation matrix layer. Firstly burying an artificial mixed matrix with the thickness of 30-50cm to form an artificial mixed matrix layer 32, and then burying a graded sandstone layer 31 with the thickness of 50-70 cm. And the compaction is carried out layer by layer every 20cm in the landfill process, so that the collapse at the later stage is prevented. Before burying the matrix, the root section must be respectively sprayed with thiophanate methyl solution and solution containing rooting powder so as to benefit the later recovery of the root system.
5. And (3) burying the top end of the rejuvenation matrix to a position 30cm underground, reserving a 30cm municipal sidewalk cushion layer, building a protection well around the micro-root pipe within 30cm, covering a well cover, and leveling the well cover and the road surface.
The invention relates to a device for deep water replenishing and rejuvenating street trees and a construction method thereof, in particular to a technology for deep water replenishing and rejuvenating of street trees and an evaluation method of rejuvenation effect. Meanwhile, a root scanner can be used for observing the growth condition of the tree root system as deep as 2m, and quantitative evaluation can be carried out on the water replenishing and rejuvenating effects of the street trees.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (8)
1. A device for deep water replenishing and rejuvenating of street trees is characterized in that the device is positioned in a municipal sidewalk cushion layer (1), and a tree pool (2) is also arranged in the municipal sidewalk cushion layer (1); the device comprises a rejuvenation pit (3) and a plurality of graded sandstone water channels (4);
a rejuvenation matrix layer is filled in the rejuvenation pit (3), and the rejuvenation matrix layer is sequentially divided into a graded sandstone layer (31) and an artificial mixed matrix layer (32) from top to bottom; the material of the artificial mixed matrix layer (32) is a mixture of organic matters and soil;
one end of each graded sandstone water channel (4) is communicated with the graded sandstone layer (31) of the rejuvenation pit (3), and the other end of each graded sandstone water channel (4) is communicated with the inside of the upper part of the tree pool (2);
a graded gravel water channel (4) is arranged from the tree pool (2) to the rejuvenation pit (3); the graded sandstone water channel (4) consists of a non-woven fabric bag and graded sandstone, and the graded sandstone is arranged in the non-woven fabric bag; one end of the graded sandstone water channel (4) is provided with a round hard open water port, the round hard open water port is led out from the inside of the upper part of one corner of the tree pool (2) and is used for leading water to directly flow into the rejuvenation pit from the tree pool during irrigation, and the other end of the graded sandstone water channel (4) is led into the rejuvenation pit (3) and is communicated with the graded sandstone layer; the graded sandstone water channel (4) is led out from the upper part of the tree pool (2), the top end of the graded sandstone water channel is exposed out of the soil in the tree pool, the graded sandstone water channel (4) is positioned at one end in the rejuvenation pit (3), and the upper surface of the graded sandstone water channel is positioned below the municipal sidewalk cushion layer;
the artificial mixed base pipe is characterized by further comprising an observation facility, wherein the observation facility comprises a micro root pipe (5), the bottom end of the micro root pipe (5) sequentially penetrates through the graded sandstone layer (31) and the artificial mixed base layer (32) and is positioned below the artificial mixed base layer (32), and the top end of the micro root pipe (5) is positioned above the graded sandstone layer (31); the width of the rejuvenation pit (3) is consistent with that of the tree pool (2), the length of the rejuvenation pit (3) is not less than 1 meter, and the depth of the rejuvenation pit (3) is 1.2-1.5 meters;
the thickness of the rejuvenation matrix layer is 90-120cm, and the thickness ratio of the graded sandstone layer (31) to the artificial mixed matrix layer (32) is 7:3-1:1; the distance between the upper surface of the rejuvenation matrix layer and the upper surface of the municipal sidewalk cushion (1) is equal to 30cm.
2. The deep water replenishing and rejuvenating device for street trees as claimed in claim 1, wherein the volume ratio of organic matter to soil in the artificial mixed matrix layer (32) is 4:6-6:4.
3. The deep water replenishing and rejuvenating device for the street tree as recited in claim 1, wherein the top end of the micro root canal (5) is 10cm lower than the upper surface of the municipal sidewalk mat (1), and the bottom end of the micro root canal (5) is 2.1m below the upper surface of the municipal sidewalk mat (1).
4. The deep water replenishing and rejuvenating device for the street tree as claimed in claim 1, further comprising an observation port protection well (6), wherein the top end of the micro-root tube (5) is located in the observation port protection well (6), and a well cover which can be opened or closed is arranged at the mouth of the observation port protection well (6).
5. The deep water replenishing and rejuvenating device for street trees as claimed in any one of claims 1 to 4 wherein there are a plurality of tree pools (2) and a plurality of rejuvenation pits (3), the rejuvenation pits (3) being disposed between any two adjacent tree pools (2).
6. A method for building a deep water replenishing and rejuvenating device for street trees according to any one of claims 1 to 5, comprising the steps of:
digging a rejuvenation pit (3) in the municipal sidewalk cushion layer (1) to keep the root section of the tree flat;
a water channel is dug between the tree pool (2) and the rejuvenation pit (3), and a graded gravel water channel (4) is arranged at the same time; one end of the graded sandstone water channel (4) is communicated with the graded sandstone layer (31) of the rejuvenation pit (3), and the other end of the graded sandstone water channel (4) is communicated with the interior of the upper part of the tree pool (2);
inserting the micro root canal (5) into the bottom of the rejuvenation pit (3);
burying an artificial mixed matrix in the rejuvenation pit (3) to form an artificial mixed matrix layer (32), and burying graded sandstone on the artificial mixed matrix layer (32) to form a graded sandstone layer (31); the bottom end of the micro root canal (5) is positioned below the artificial mixed matrix layer (32), and the top end of the micro root canal (5) is positioned above the graded sandstone layer (31).
7. The method for building the device for rejuvenating the deep water of street tree as claimed in claim 6, further comprising the steps of: before the step 4), spraying thiophanate methyl solution and solution containing rooting powder on the root section of the tree respectively.
8. Use of the deep water rejuvenation device for street trees according to any one of claims 1 to 5 for evaluating the rejuvenation effect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611240084.1A CN106718596B (en) | 2016-12-28 | 2016-12-28 | Deep water replenishing and rejuvenating device for street trees and construction method and application |
| CN202310354538.1A CN117063763A (en) | 2016-12-28 | 2016-12-28 | Device for rejuvenating pavement tree, construction method and application |
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| CN201611240084.1A CN106718596B (en) | 2016-12-28 | 2016-12-28 | Deep water replenishing and rejuvenating device for street trees and construction method and application |
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| CN202310354538.1A Pending CN117063763A (en) | 2016-12-28 | 2016-12-28 | Device for rejuvenating pavement tree, construction method and application |
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| CN111733658A (en) * | 2020-07-24 | 2020-10-02 | 沈阳促晋科技有限公司 | Communicating type high-efficiency drainage tree pool structure |
| CN115843654B (en) * | 2022-09-19 | 2024-07-23 | 北京市园林绿化科学研究院 | Street tree planting soil structure and planting method suitable for cold areas |
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| CN106718596A (en) | 2017-05-31 |
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