CN113303176A

CN113303176A - Turf block stacking method and application

Info

Publication number: CN113303176A
Application number: CN202110565295.7A
Authority: CN
Inventors: 韩烈保; 刘卓成; 季双旋
Original assignee: Beijing Forestry University
Current assignee: Beijing Forestry University
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-08-27

Abstract

The invention relates to the technical field of plant maintenance, and particularly discloses a turf block stacking method and application. The method for piling the turf blocks comprises the steps of stacking the turf blocks from bottom to top in sequence to form a turf pile body, paving a plurality of ventilation pipes which are arranged in a transversely-longitudinally staggered mode between the turf blocks, forming a latticed ventilation pipe layer by the ventilation pipes, and forming a plurality of ventilation holes in the side face of each ventilation pipe. The method of the invention obviously prolongs the preservation time of the activity of the turf, and ensures that the turf blocks have higher activity in the stacking process and after stacking, thereby improving the efficiency and the effect of vegetation recovery. The method can be applied to turf protection or vegetation restoration, and particularly solves the problem that meadow turf protection and vegetation restoration are difficult in engineering construction in alpine grasses regions.

Description

Turf block stacking method and application

Technical Field

The invention relates to the technical field of plant maintenance, in particular to a turf block stacking method and application.

Background

The ecological environment of regions such as Qinghai-Tibet plateau is fragile, the protection of the primary meadow turf is difficult in the engineering construction process, and the vegetation recovery period is long. Therefore, the vegetation recovery method for storing and replanting the meadow turf needing to be peeled has obvious advantages and popularization prospects. At present, the related technology is still not mature, the cost is higher, the survival rate of the turf can be influenced by stripping thickness, stripping season, stacking mode, stacking time and the like in the construction process, and the technical standard is lacked in the construction process, so that the guidance on engineering practice is insufficient.

At present, the turf stacking mainly comprises 3 modes of tiling, stacking and support overhead, wherein the stacking area required by the tiling method is too large, the cost of the support overhead method is too high, and the stacking and storing mode is most commonly used in the current practice. The mutual extrusion of the turf blocks in the storage mode leads to photosynthesis inhibition and water stress of the overground part of turf plants, root systems and soil layers due to insufficient illumination, moisture and oxygen when the turf is stacked, and then adverse effects on growth and survival of the turf plants are generated, the interference of stripping and stacking on the plants is reduced as far as possible in the turf stacking process, and the improvement of the survival rate is the key for influencing the vegetation recovery effect.

Because the turf stripping, stacking and re-planting utilization technologies are immature, the vegetation recovery effect is not ideal, and meanwhile, the related construction technology experience is insufficient, so that the construction cost and the expense are higher, and the vegetation recovery technology ecological benefit and the economic benefit of stripping the turf and re-planting in the engineering construction process are not outstanding enough.

Therefore, it is desirable to provide a new method and application for stacking turf blocks to solve the problems of the prior art.

Disclosure of Invention

In order to solve the above problems, the present invention provides a method for stacking turf pieces, which can reduce the adverse effect of turf during the peeling and stacking process as much as possible, prolong the storage time of turf vigor, and improve the survival rate of turf.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a turf block stacking method includes the steps that turf blocks are sequentially stacked from bottom to top to form a turf stacking body, a plurality of ventilation pipes which are arranged in a transversely-longitudinally staggered mode are laid among the turf blocks, the ventilation pipes form a latticed ventilation pipe layer, and a plurality of air holes are formed in the side faces of the ventilation pipes.

The traditional stacking process causes stress on plants in aspects of moisture, ventilation, illumination and the like due to mutual overlapping and extrusion of turf blocks. According to the stocking method, the plurality of ventilation pipes which are arranged in a grid shape are laid between adjacent layers of the turf blocks in the stacking manner, the ventilation holes in each ventilation pipe are located on the side surface of the pipeline, and the ventilation holes are not shielded after the ventilation pipes are laid, so that ventilation is realized by the method, the distance between the upper turf block and the lower turf block is increased, the ventilation performance of the turf stack is improved, illumination is improved, and the activity of the turf is further improved. Preferably, ventilation pipes with the same direction (such as ventilation pipes arranged transversely) are paved first, and then ventilation pipes with the same direction (such as ventilation pipes arranged longitudinally) are paved on the ventilation pipes, so that a grid shape with two layers in transverse and longitudinal directions is formed in a plan view. According to the invention, the turf pile comprises 3-5 turf blocks, so that the problems of instability of the pile and reduction of survival rate of bottom-layer turf caused by over-high stacking are avoided while the utilization rate of the stacking space is improved.

The thickness of the turf block is larger than the depth of more than 90% of roots of grass on the turf block in a soil layer, so that more than 90% of root biomass of turf can be reserved.

In the present invention, the thickness of the turf pieces is preferably 18 to 22cm, more preferably 20 cm.

The invention ensures that the thickness of the taken turf block is more than 90 percent of the depth of the root system buried underground, thereby reducing the cutting of the root system when the turf block is taken, protecting the integrity of the root system, reserving enough native soil and being beneficial to maintaining the activity of the turf when the turf is stored. Taking alpine meadow areas as an example, the overground parts of original vegetation in the alpine meadow areas are low and cushion-shaped, and the main biomass is in the underground parts, so that it is very important to protect the root systems of the turfs as much as possible in the stripping process. Researches show that the vertical distribution of roots of alpine meadow vegetation communities is T-shaped along with the depth of soil layers, and 90% of root biomass is distributed in the soil layers of 0-20 cm; the quick-acting nitrogen and phosphorus in the soil are vertically distributed in a 10-20 cm soil layer to reach the highest. Therefore, according to the principle of the invention, 90% of root systems and sufficient nutrition surface soil of the original turf can be preserved when the thickness of the peeled turf blocks is about 20cm, and a guarantee is provided for high survival rate after the following turf blocks are stockpiled.

The invention reserves soil with proper thickness, not only can reserve the integrity of the root system of the turf, but also can provide enough water-retaining matrix for the root system of the turf, reduce the cost of watering and maintenance, simultaneously increase the strength of the turf blocks and avoid the turf blocks from collapsing and breaking when being stacked and laid back.

In the invention, the coverage area of the ventilation pipe layer is the same as the surface area of the turf blocks adjacent to the ventilation pipe layer.

In one embodiment of the invention, the turf pieces are peeled from the raw meadow turf in a time period of turf growth season (generally 4 to 9 months per year, depending on the field climatic conditions), preferably in an early season (5 to 7 months). The stripping is performed in different ways for different topographies. Aiming at the grassland with flat terrain, firstly, a square grid with the specification of 100cm multiplied by 100cm is formed on the original grassland by vertically cutting with an electric saw, the cutting depth is 20-25cm, then, a loader is used for horizontally cutting the part 20cm below the ground of the turf, a steel plate which is horizontally flush with the bottom surface of the bucket is welded at the front part of the loader bucket, the thickness of the steel plate is 5mm (the schematic diagram of the loader is shown in figure 4), and the peeled turf is transported by a forklift. Aiming at the mountain land terrain which is difficult to operate by heavy machinery, the specification of vertical cutting by using an electric saw is 50cm multiplied by 50cm, the horizontal cutting is manually cut by using tools such as a hoe, a shovel and the like, and the specification of the peeled turf is 50cm multiplied by 20cm, so that the turf is convenient to carry manually.

In the invention, the inner diameter of the ventilation pipe is 3-5cm, and the distance between the ventilation pipes arranged along the same direction is 15-40 cm; the distance between the air holes is 2-5cm, and the diameter of the air holes is 0.45-0.6 cm.

Preferably, the inner diameter of the ventilation pipes is 4cm, and the distance between the ventilation pipes arranged along the same direction is 25 cm; the interval of bleeder vent is 2cm, the diameter of bleeder vent is 0.6cm to do benefit to and obtain better compromise ventilation and support effect.

In the invention, the ventilation pipe is made of PVC (polyvinyl chloride) so as to be beneficial to ensuring the supporting effect on the turf, and has the advantages of low cost, easiness in processing and transportation, good durability and capability of being used for multiple times.

In the invention, before stacking the turf pile, soil with the thickness of 2-6cm, preferably 6cm, is laid, and then stacking is carried out on the soil so as to be beneficial to water retention and air permeability of a bottom layer, and when stacking is finished, surface soil resources stored by the method can be utilized in back laying.

Adopt native soil when preferred laying, soil can be collected when the turf is peeled off to do benefit to the protection of surface soil resource, avoid extravagant.

In the invention, after the turf pile body is stacked, the water-retaining agent is coated (preferably uniformly coated) on the exposed soil surface of the side surface of each turf block, so that the problem of water shortage and drought of the turf is relieved.

Preferably, the water retention agent is a Super Absorbent Polymer (SAP). The main chemical components of the water-soluble acrylic acid are 88 percent of low-crosslinking sodium polyacrylate (containing 24.5 percent of sodium), 8 to 10 percent of water and 0.5 to 1.0 percent of crosslinking agent.

The invention also comprises a step of maintaining the turf pile body, wherein the maintenance mode is as follows: and watering the stacked turf piles to a soil layer soaked with the turf blocks after the stacking of the turf piles is finished, watering every 2 days to keep the soil layer of each turf block moist for 15 days, watering every 5 days to keep the soil layer of each turf block moist for 15 days, maintaining the turf piles by relying on open-air natural rainfall, and completely watering the turf piles only once when the turf piles enter a winter dormancy stage and a spring growth season so that the turf piles still have high vitality after being stacked.

In the invention, when the root activity of the turf blocks is reduced to 60%, the turf blocks are stopped from being stocked so as to ensure the activity of the turf after the re-planting.

In the maintenance process, the turf root system is regularly sampled, the activity of the root system is tested, and the stacking time of turf blocks is determined. The root activity test method comprises the following steps: sampling each stacked turf block by using a stainless steel soil sampler with the inner diameter of 2.54cm at intervals of 14d before and during stacking to obtain 0-20 cm root columns of the soil layer; fully leaching the sampling soil layer root columns by using tap water, removing impurities such as stone grains, sand grains and the like in the soil layer root columns, and obtaining root system clusters; soaking and dyeing with 5mg/ml TTC solution (pH 7.5), allowing the root tip to show red color in a 37 ℃ incubator for 1h, and independently picking out the dyed root system with forceps to obtain two types of dyed and undyed root systems; drying in an oven at 105 ℃ to constant weight; weighing: the dyed dry weight (Wa) and the total dry weight (Wt) of the root system are obtained by weighing with an electronic balance) The root systems of the original turfs are measured to be the same before stacking begins, and the weighing results are Wa₀And Wt₀(ii) a Calculating the proportion of the viable roots and the attenuation degree of the root system activity under the stacking condition (time), wherein the calculation formula is as follows: degree of decay of root activity (Wa Wt)₀)/(Wt·Wa₀) X is 100%; and (4) taking the root system activity maintenance of 60% as a stacking threshold value, and judging the appropriate stacking time for stacking.

The invention also aims to provide the application of the method in turf protection or vegetation restoration.

The method is suitable for stockpiling of meadow turf (alpine marshlized meadow, alpine meadow and alpine grassland), and provides a higher survival rate mode for recovering vegetation in alpine grassland.

The specific application mode of the invention in vegetation recovery is as follows:

(1) stripping: peeling the piece of sod from the native turf;

(2) stacking and maintaining: stacking and forming the turf pile body according to the method and maintaining;

(3) and (3) replanting: and paving the piled and maintained turf blocks back to the place where vegetation restoration is needed.

Wherein the size of the turf blocks peeled in the step (1) is 100cm multiplied by 20cm or 50cm multiplied by 20 cm.

The peeling method of the step (1) of the present invention can form square squares on the green grass by cutting with an electric saw, and then horizontally cut the grass from the underground portion of the grass using a loader. Preferably, a steel plate which is horizontal to the bottom surface of the bucket is welded at the front part of the loader bucket, and the thickness of the steel plate is 5 mm.

The loader can effectively improve the integrity of the turf peeling and reduce the damage of the turf peeling, thereby increasing the survival rate of the whole process.

The replanting mode in the step (3) can be that the replanting turf is laid into a square grid shape, the side length of the square is 1-5 m, and the horizontal edge of the square is laid along the slope surface contour line.

As a specific application mode of the invention, the method for recovering vegetation and improving the ecological restoration efficiency by stripping, stocking and replanting the meadow turf comprises the following steps:

1) peeling off the turf on the original grassland to form a turf block with a certain specification;

2) selecting a proper stacking place, and stacking and storing the turf blocks obtained by stripping;

wherein the stacking field is a flat ground, and native soil is paved at the bottom of the stacking field; PVC ventilation pipes are laid among the turf blocks; and after the stacking is finished, coating a water-retaining agent on the exposed soil surface on the side surface of the turf block.

3) Maintenance management;

4) and replanting the stacked turf blocks to the slope needing to be restored according to the engineering requirement.

As a specific application mode of the invention, the technical method for peeling, stocking and replanting the turf provided by the invention comprises the following steps:

(1) stripping, cutting a square grid of 100cm multiplied by 100cm on the original turf needing to be stripped by an electric saw before construction, and then generating the turf along a plane of 20cm below the ground by a loader to form a turf block of 100cm multiplied by 20 cm;

(2) stacking, paving surface soil with the thickness of 2-6cm on the bottom layer, preferably 6cm, sequentially stacking the peeled turf blocks, paving PVC ventilation pipes with punched side surfaces among all layers of turf in a grid mode, wherein the length of each ventilation pipe is 1m, the inner diameter of each ventilation pipe is 3-5cm, air holes are punched on the side surfaces, and the gaps of the air holes are 2-5 cm. Stacking 3-5 layers of turf, and uniformly coating a water-retaining agent on the exposed soil surface on the side surface of the turf block after stacking;

(3) maintaining, watering thoroughly after stacking, watering once every 2 days in the first 15 days and once every 5 days in the last 15 days in the next first month, and then watering thoroughly in the hibernation period in winter and the growing season in spring by relying on natural precipitation;

(4) and (4) re-planting, namely paving the stacked turf blocks back to the side slope needing vegetation restoration according to the engineering requirement. Paving turf blocks according to the shape of a square grid, wherein the horizontal edge of the square extends along the contour line of the slope, and the side length of the square is designed to be 1-5 m, preferably 2 m; grooving is carried out on the slope surface before the turf is paved (the grooving depth is slightly larger than the turf thickness so as to facilitate the turf to be planted on the ground surface needing to be repaired), and surface soil covering and gap filling are carried out after the turf is paved, so that the side surface and the side roots of the turf block are buried and pressed below the surface soil as far as possible.

The invention has the beneficial effects that:

the method of the invention obviously prolongs the preservation time of the activity of the turf, ensures that the turf blocks have higher activity in the stacking process and after stacking, improves the survival rate of the turf blocks, and further improves the efficiency and the effect of vegetation recovery. In particular to the problems of meadow turf protection and vegetation recovery difficulty in engineering construction in alpine grasses areas.

Drawings

FIG. 1 is a schematic view of a stack of sod and vent tubes;

FIG. 2 is a schematic cross-sectional view (right view) and a schematic longitudinal-sectional view (left view) of the vent pipe to show the positions of the vent holes;

FIG. 3 is a schematic top view of the longitudinal and transverse arrangement of ventilation ducts;

FIG. 4 is a schematic view of a loader performing a horizontal cut when the sod is being peeled;

FIG. 5 is a comparison of vegetation coverage for different stacking patterns;

FIG. 6 is a graph comparing chlorophyll content of plant leaves in different stocking patterns;

FIG. 7 is a graph comparing plant root activity for different stacking patterns;

FIG. 8 is a graph comparing the survival rates of replanting plants in different stacking modes;

in the figure, different lower case letters (a, b, ab and c) indicate significant differences between treatments (p < 0.05).

Detailed Description

Preferred embodiments of the present invention will be described in detail with reference to the following examples. It is to be understood that the following examples are given for illustrative purposes only and are not intended to limit the scope of the present invention. Various modifications and alterations of this invention will become apparent to those skilled in the art without departing from the spirit and scope of this invention.

The experimental procedures used in the following examples are all conventional procedures unless otherwise specified. Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example 1

Implementation objects are as follows: g561 engineering along the meadow turf in Linzhou county of Lassa City in Tibet autonomous region. The implementation area is located at the G561 Highway Dangsheng-forest week section pile number K34+90, the implementation area has the altitude of 4635m, the grassland type is alpine meadow steppe, and the dominant species is alpine meadow grassland. The stripping area is a grassland which is in a growing season, good in growth vigor and uniform in coverage.

The implementation scheme is as follows: the pieces of turf with the specification of 100cm × 100cm × 20cm were peeled off at 21 days 7 and 7 months in 2018 (middle season of turf growth), and immediately stacked and stored. Treatment 1: ventilating pipe + water-retaining agent, processing 2: vent and process 3: for the control, 3 test treatments were performed, and 3 replicates were set for each sod stack.

The specific scheme of the treatment 1 is as follows:

(1) stripping: cutting a square grid of 100cm multiplied by 100cm on the original turf needing to be peeled off by an electric saw before construction, and then producing the turf along a plane 20cm below the ground by a loader to form a turf block of 100cm multiplied by 20 cm; a steel plate which is horizontal to the bottom surface of the bucket is welded at the front part of the loader bucket, the thickness of the steel plate is 5mm, and a schematic diagram is shown in figure 4.

(2) Stacking (schematic see fig. 1): and (3) laying native surface soil with the thickness of 6cm at the bottom layer (collecting when the turf is peeled), stacking the peeled turf blocks in sequence, and paving PVC ventilation pipes with holes punched on the side surfaces among all layers of turf in a grid mode. Specifically, ventilation pipes arranged in the same direction (transverse or longitudinal) are laid at equal intervals, and then another ventilation pipe arranged in the same direction (longitudinal or transverse) is laid on the laid ventilation pipes at equal intervals, so that the ventilation pipes form a grid-shaped ventilation pipe layer staggered in the transverse and longitudinal directions. The arrangement of the first-row transverse-then-row longitudinal ventilation ducts is schematically shown in the top view of FIG. 3. The length of the vent pipe is 1m, the inner diameter of the vent pipe is 4cm, the distance between the vent pipes arranged along the same direction is 25cm, air holes are drilled on the side surface (the drilling position is shown in figure 2), the gap between the air holes is 2cm, and the diameter of each air hole is 0.6 cm. Stacking 3 layers of turf, and uniformly coating a water-retaining agent (purchased from Beijing Jinyuan Yishengmen industries, Ltd., France Edison SNF, model MP3005KM) on the exposed soil surface on the side surface of the turf block after stacking.

(3) And (5) maintenance: watering to soak the soil layer of each turf block after stacking is finished, watering every 2 days to keep the soil layer of each turf block moist for 15 days, watering every 5 days to keep the soil layer of each turf block moist for 15 days, and then watering thoroughly in a winter dormancy stage and a spring growing season.

The specific protocol of treatment 2 is the same as treatment 1 except that no water retention agent is applied.

The specific protocol of treatment 3 is the same as that of treatment 1, except that no vent tube is used and no water-retaining agent is applied.

This example further samples and tests turf 24 days 10 months (end of growing season) in 2018. And counting the data of chlorophyll content (ethanol extraction colorimetry), coverage (digital image method) and root activity (TTC staining method, and TTC content is used for reflecting root activity) of each layer of turf leaf to reflect the activity of the turf, wherein specific results are shown in the figures 5, 6 and 7.

In this embodiment, the turf blocks stored and maintained for 1 year are replanted (at this time, the activity of the root system for processing 1 turf block is higher than 60%), and specifically, the stacked turf blocks are laid back on the slope where vegetation recovery is needed according to the engineering requirement. Paving turf blocks according to the shape of a square grid, wherein the horizontal edge of the square extends along the contour line of the slope, and the side length of the square is designed to be 2 m; grooving the slope surface before the turf is paved, covering surface soil after the turf is paved, and burying the side surface and the side roots of the turf blocks below the surface soil as far as possible. And (4) counting the survival rate of the replanting after replanting for 2 months, wherein the counting method comprises the following steps: survival rate is survival quantity divided by total quantity before stockpiling multiplied by 100%. The specific results are shown in FIG. 8.

And (3) test results: the difference of the cover degrees of the top layer (layer 1) of the stacked different turf treated is not obvious; the coverage of the layer 2 treatment 1 is 48.30%, which is 6.67% higher and 16.58% higher than 45.28% of the treatment 2 and 41.43% of the treatment 3, respectively, and the difference is obvious; the difference between treatments was significant for the turf turfs at layer 3 (lowest layer), with 66.03% coverage for treatment 1, 31.22% and 101.80% higher than 50.32% for treatment 2 and 32.72% for treatment 3, respectively. It can be seen that the coverage of the middle and lower layers is more significantly affected than that of the upper layer when the sod is stacked, and the method for stacking the sod according to the treatment 1 of the invention remarkably improves the coverage of the sod.

The chlorophyll content of the vegetation on the 2 nd and 3 rd layers of the treatment 1 and the treatment 2 is obviously higher than that of the control group, wherein the chlorophyll content of the vegetation on the 2 nd layer of the treatment 1 is 15.36mg/g and is obviously higher than 8.41mg/g of the treatment 2 and 4.91mg/g of the treatment 3.

Root activity and replanting survival rate 1 st layer difference is not significant, 2 nd layer, 3 rd layer difference is showing, all there is ventilation pipe + water retaining agent > ventilation pipe > phenomenon of contrast, and use the processing of ventilation pipe + water retaining agent measure, the range that descends between the different number of layers is not significant, the turf save condition is good, other processing, 2 nd layer, the root activity on 3 rd layer is showing and is descending, compare with 1 st layer, the ventilation pipe is handled 2 nd layer and is descended 0.18365mg/g, contrast is handled 2 nd layer and is descended 0.1862mg/g, 2 nd layer, 3 rd layer difference is not big. The survival rate of replanting is not obvious in the difference between the 2 nd layer and the 3 rd layer in the ventilation pipe treatment, and the difference between the 2 nd layer and the 3 rd layer in the contrast treatment. The vent treated layer 2 lower layer 1 was reduced by 8.33%, and the control treated layer 2 lower layer 1 was reduced by 14%.

The results show that the ventilation pipes paved among the turf stacking layers can obviously relieve the phenomena of the reduction of the chlorophyll content, the coverage degree and the root activity of the overground part of the meadow turf and the lower survival rate of the replanting in the stacking process. The method of the invention finally obtains good replanting effect.

Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A turf block stacking method is characterized in that turf blocks are sequentially stacked from bottom to top to form a turf stack body, a plurality of ventilation pipes which are arranged in a transversely-longitudinally staggered mode are laid among the turf blocks, the ventilation pipes form a grid-shaped ventilation pipe layer, and a plurality of air holes are formed in the side face of each ventilation pipe.

2. The method of claim 1, wherein said sod stack comprises 3-5 of said sod blocks; the thickness of the turf block is larger than the depth of more than 90% of roots of grass on the turf block in a soil layer;

and/or the coverage area of the ventilation pipe layer is the same as the surface area of the turf blocks adjacent to the ventilation pipe layer.

3. A method of piling up turf blocks according to claim 2 wherein the thickness of the turf blocks is 18-22cm, preferably 20 cm.

4. A method of piling up turf blocks according to any one of claims 1 to 3 wherein the inside diameter of the ventilating ducts is 3 to 5cm and the pitch of the ventilating ducts arranged in the same direction is 15 to 40 cm; the distance between the air holes is 2-5cm, and the diameter of the air holes is 0.45-0.6 cm;

preferably, the inner diameter of the ventilation pipes is 4cm, and the distance between the ventilation pipes arranged along the same direction is 25 cm; the distance between the air holes is 2cm, and the diameter of the air holes is 0.6 cm.

5. A method of piling turfs as claimed in any one of claims 1 to 4, wherein said ventilation duct is made of PVC.

6. Method for stocking blocks of turf according to any one of claims 1 to 5, characterized in that before stacking the turf stack a soil of 2 to 6cm, preferably 6cm, is laid and the stacking is carried out on said soil.

7. The method of stacking sod blocks as claimed in any one of claims 1-6, wherein after stacking said sod stack, a water retention agent is applied to the exposed soil surface of the side of each sod block.

8. The method of stacking sod blocks as claimed in any one of claims 1-7, further comprising the step of maintaining said sod stack by: watering the stacked turf piles to a soil layer soaked with the turf piles, watering every 2 days to keep the soil layer of each turf pile moist for 15 days, watering every 5 days to keep the soil layer of each turf pile moist for 15 days, and then maintaining the turf piles by relying on open-air natural rainfall, wherein the turf piles are watered thoroughly only when the turf piles enter the dormant period in winter and the growing season in spring;

and/or stopping the stockpiling when the root activity of the turf blocks is reduced to 60 percent.

9. Use of the method of stacking turf blocks according to any one of claims 1 to 8 for turf protection or vegetation restoration.

10. The application of claim 9, which is applied to vegetation restoration in a specific way:

(1) stripping: peeling the piece of sod from the native turf;

(2) stacking and maintaining: the sod block stocking method of any of claims 1-8, stacking to form said sod stack and maintaining;

(3) and (3) replanting: paving the piled and maintained turf blocks back to the place where vegetation recovery is needed;

preferably, the size of the pieces of turf peeled in step (1) is 100cm x 20cm or 50cm x 20 cm.