CN108739088B - Mixed grass lawn for walking and construction method thereof - Google Patents
Mixed grass lawn for walking and construction method thereof Download PDFInfo
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- CN108739088B CN108739088B CN201810643415.9A CN201810643415A CN108739088B CN 108739088 B CN108739088 B CN 108739088B CN 201810643415 A CN201810643415 A CN 201810643415A CN 108739088 B CN108739088 B CN 108739088B
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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
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks
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Abstract
The invention discloses a mixed grass lawn for walking, which comprises a supporting layer and a planting layer positioned on the supporting layer, wherein mixed grass is planted on the planting layer, the mixed grass comprises gramineous inferior propagation type forage grass and lawn grass, the gramineous inferior propagation type forage grass accounts for 10-30% of the mixed grass, and the gramineous inferior propagation type forage grass comprises one or more of Chinese wildrye, elymus, old awn wheat, bromus formosanus, curvella virens, fescue or cogongrass. The construction method comprises the following steps: a planting layer is laid on the supporting layer, and mixed grass is planted on the planting layer. The inferior propagation type grass of the gramineae and the common lawn grass are mixed and planted in the planting layer, so that the two grass seeds have good mutual promotion of growth, the treading resistance of the lawn is improved, the proportion of the inferior propagation type grass of the gramineae is 10-30%, and the ornamental value of the lawn is not influenced on the basis that the treading resistance of the single common lawn grass can be greatly improved.
Description
Technical Field
The invention relates to the technical field of lawns, in particular to a mixed grass walking lawn and a construction method thereof.
Background
With the development of social economy, people pay more and more attention to the environment, and a great amount of lawns are built in more and more parks and districts. The conventional lawn is mainly characterized in that a grass blanket is directly paved or sown on the original land, or sand is paved on the original land and then the lawn is planted, the conventional lawn cannot be used for walking and treading, but the conventional lawn is inevitably easy to tread, so that after treading by a tourist, soil hardening and alopecia areata are easily caused, and the maintenance cost of the lawn is further high.
Disclosure of Invention
The invention aims to provide a mixed grass walking lawn, which aims to solve the problem that the conventional lawn is not resistant to treading.
A second object of the present invention is to provide a method of constructing a mixed grass lawn for providing a mixed grass lawn having anti-treading properties by a simple, convenient and feasible method.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the mixed grass walking lawn provided by the invention comprises a supporting layer and a planting layer positioned on the supporting layer, wherein mixed grass is planted on the planting layer, the mixed grass comprises gramineous inferior propagation type forage grass and lawn grass, the gramineous inferior propagation type forage grass accounts for 10-30% of the mixed grass, and the gramineous inferior propagation type forage grass comprises one or more of Chinese wildrye, elymus, old awn wheat, bromus formosanus, curvella virens, fescue or cogongrass.
The invention also provides a construction method of the mixed grass walking lawn, which comprises the following steps: a planting layer is laid on the supporting layer, and mixed grass is planted on the planting layer.
The inferior propagation type grass of the gramineae and the common lawn grass are mixed and planted in the planting layer, so that the two grass seeds have good mutual promotion of growth, the treading resistance of the lawn is improved, the proportion of the inferior propagation type grass of the gramineae is 10-30%, and the ornamental value of the lawn is not influenced on the basis that the treading resistance of the single common lawn grass can be greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a hybrid grass-walking lawn according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a hybrid grass-walking lawn according to another embodiment of the present invention.
In the figure: 100 a-mixed grass lawn; 110-a support layer; 111-geotextile; 120-planting layer; 121-root system planting matrix layer; 122-honeycomb cells; 130-mixed grass.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The mixed grass lawn for walking according to the embodiment of the present invention, the method of constructing the same, and the like will be described in detail.
In current lawn, after artificially stepping on the lawn, human weight can further transmit pressure for the planting soil layer of planting the meadow on the grass that acts on the lawn earlier, and then can make and plant soil layer soil by the compaction under the effect of pressure, produce easily and harden, thereby moisture and the nutrient substance supply that lead to the grass on the lawn receive the influence, consequently, the back is trampled to the grass on the lawn, its growing ability and repair ability decline greatly, and then lead to dying easily, the lawn forms a large amount of alopecia areata. The invention creatively provides the lawn capable of greatly enhancing the treading resistance of the lawn, so that the lawn can form a mixed grass walking lawn for walking. The specific implementation mode is as follows:
referring to fig. 1, a mixed grass walking lawn 100a according to some embodiments of the present invention includes a support layer 110 and a planting layer 120 on the support layer 110, the planting layer 120 is planted with mixed grass 130, the mixed grass 130 includes gramineae lower propagation type forage grass and turf grass, the gramineae lower propagation type forage grass accounts for 10-30% of the mixed grass, and the gramineae lower propagation type forage grass includes one or more of leymus chinensis, elymus chinensis, rambutan, teff, fescue, or Imperata alba. By mixed planting of gramineous inferior pasture and lawn grass, the whole treading capacity of the lawn can be improved, and the whole aesthetic property of the lawn can be considered. The grass of the lower propagation type of the gramineae has strong water and soil retention capacity and strong growth and restoration capacity, and when the grass is mixed with the common lawn grass for planting, the growth and restoration capacity of the whole lawn can be improved. The proportion of the gramineous inferior propagation type pasture in the mixed grass is 10-30%, and the proportion can not only improve the treading resistance of the lawn, but also does not influence the ornamental performance of the whole lawn. Wherein, when mixed planting is carried out, the grass of the lower reproduction type in the Gramineae and the lawn grass are uniformly mixed and sowed.
In particular, grasses of the gramineae inferior reproduction type suitable for embodiments of the present invention may include one or more combinations of fescue, elymus, rambutan, bromus formosanus, teff grass, fescue, or cogongrass. For example, leymus chinensis, elymus sativus, rambutan, bromus formosanus or teff grass may be selected individually. Or combination of herba Leymi chinensis and old Mangifera Indicae, or combination of herba Leymi chinensis, herba Thymi Japonicae and bromus formosanus, etc. Turfgrass may include one or more combinations of blue grass, tall fescue, ryegrass, bentgrass, fescue, zoysia, bermuda grass, carpesium or blumea. For example, turfgrass may be festuca arundinacea, ryegrass, bentgrass or fescue, or a combination of fescue and zoysia, or a combination of zoysia and bermuda, or a combination of bermuda, bentgrass and carpet grass. Wherein the bluegrass can be selected from one or more of excellent bluegrass, empire, free 3, gunstock and midnight No. 2. The ryegrass can be one or a combination of angel and night shadow.
Furthermore, aiming at different climatic conditions in the south and north, different lawn grass is selected, so that the growth performance of the lawn grass is improved, and the trampling resistance of the lawn grass is correspondingly improved. In northern lawns, the turf grass is cool-season grass, preferably one or a combination of bluegrass, festuca arundinacea, ryegrass, bentgrass, or festuca arundinacea. In southern lawns, the turf grass is warm season grass, preferably one or a combination of zoysia, bermuda grass, carpesium or blumea.
Referring to fig. 2, some embodiments of the present invention further provide a mixed grass lawn 100b, which includes a support layer 110 and a planting layer 120 on the support layer 110, wherein the planting layer 120 includes a root planting substrate layer 121 and honeycomb cells 122, the root planting substrate layer 121 is laid on the upper portion of the support layer 110, one layer of honeycomb cells 122 is located in the root planting substrate layer 121, the root planting substrate layer 121 is submerged in the honeycomb cells 122, the upper surface of the root planting layer is 3-5 cm higher than the tops of the honeycomb cells 122, and the mixed grass 130 is planted on the root planting substrate layer 121.
The treading resistance of the lawn can be improved by selecting different grass seed combinations and paving the honeycomb cells; the existing grass is not added with grass seeds, the whole trampling resistance of the lawn can be improved by adding the grass seeds in a certain proportion, and in addition, the soil hardening can be prevented by combining with the laying of the honeycomb cells, so that the whole growth vigor of the lawn can be improved, and the trampling resistance of the lawn is further improved.
The honeycomb cells 122 are a three-dimensional network of cells formed from reinforced HDPE sheet material by high strength welding. Which can significantly improve the performance of common filler materials in load bearing and worm erosion control applications over a wide range. The honeycomb cells 122 are smoothly attached to the matrix soil layer, and the conditions of tension stress, folding, crumpling and the like are avoided during laying. The stress is smooth, the tightness is proper, and the steel wire cannot be tightened or over-tightened. If damage is found, it should be repaired or replaced immediately. After the laying is finished, the anchor rods are used for fixing in time, and the anchor rods are prevented from being blown up by wind and sliding down. The exposure time of the honeycomb cells is shortened as much as possible, and humus is covered within 12 hours after the honeycomb cells are laid. The inventor creatively sets up honeycomb check room 122 in the root system planting matrix that is used for planting the grass on lawn, be about to bury honeycomb check room 122 in root system planting matrix, play the effect of skeleton support in it, be different from the mode that applies honeycomb check room 122 to ground among the prior art, when the lawn is trampled to the human body, the soil layer on honeycomb check room 122 upper portion receives the extrusion and transmits power for honeycomb check room 122 uniformly, the further dispersion is advanced to the trampling pressure that will transmit through honeycomb check room 122, thereby make the soil hardening of lower part root system planting layer be difficult to take place the soil hardening at trampling the in-process, and then the grass on lawn is trampling the back, its bottom is difficult to change for its soil basic unit that provides moisture and nutrient composition, its growth performance and prosthetic capability also obtain improving, resume easily after being trampled. Meanwhile, the honeycomb structure is selected to be more favorable for dispersing the treading pressure. Therefore, the treading resistance of the lawn is greatly improved; and set up honeycomb check room 122 in the position below the root system plants layer 121 surface 3 ~ 5cm for honeycomb check room 122 can enough carry out the dispersion of skeleton support and effort to the lawn structure, can not influence the growth of the grass on the lawn again, also makes the trampling in-process on whole lawn can not destroy honeycomb check room 122 structure.
The supporting layer 110 is a bottom structure which supports the walking lawn 100 and is also used for collecting drainage at the bottom of the lawn, so that in some embodiments of the invention, the supporting layer 110 is a gravel drainage layer, and the gravel used in the gravel drainage layer has a particle size of 1-3 cm. The crushed stone can be selected from gravel, etc. The support layer 110 formed by piling the crushed stones with the particle size has stable support performance, and meanwhile, the pore size is suitable for facilitating drainage and collection, and meanwhile, the moisture and the nutrient components are not easy to lose.
In the walking lawn 100 according to the embodiment of the invention, the thicknesses of the supporting layer 110 and the planting layer 120 and the height specification of the honeycomb cells 122 all affect the performance of the walking lawn 100, the soil layer of the planting layer 120 is too thick, which easily causes poor partial pressure stress condition of the honeycomb cells 122, and the treading resistance cannot be obviously improved, and meanwhile, the excessive water in rainy days is not beneficial to be drained and collected through the supporting layer 110; and the too thin soil layer of the planting layer 120 is likely to cause poor moisture and fertility preservation capability of water and soil and influence plant growth. Therefore, in some embodiments of the present invention, the total thickness of the supporting layer 110 and the planting layer 120 may be 20 to 30cm, the thickness of the supporting layer 110 may be 5 to 10cm, and the standard height of the honeycomb cells 122 is 7 to 10 cm. The thickness of this supporting layer 110, planting layer 120 and the selection of honeycomb check room 122 specification size can make when trampling the lawn, and the power of trampling can act on honeycomb check room 122 fast, and moisture content and nutrient composition in the layer 120 are planted to the root system can have fine holding power simultaneously, have also had the good drainage of supporting layer 110 to collect the ability concurrently.
According to some embodiments, the walking lawn 100 further comprises a foundation, wherein the gravel drainage layer is laid on the foundation, the surface of the foundation is medium-high, two sides of the foundation are low, the slope is 3-5 per mill, and the foundation drainage is facilitated through the set certain slope.
According to some embodiments, a geotextile 111 is further disposed between the support layer 110 and the root planting matrix layer 121. The laying amount of the geotextile 111 is 100-2The geotextile 111 can prevent the root system planting matrix from sliding down to the gravel drainage layer along with water seepage. Further, in some embodiments, 2-5 cm of root system planting medium is further laid on the honeycomb cells 122 and the geotextile 111, which can prevent the honeycomb cells 122 from directly contacting the supporting layer 110, and thus, a buffering effect is achieved.
In the embodiments of the present invention, the specific choice of the root system planting substrate also relates to the growth and restoration ability of turfgrass, and also relates to whether the root system planting substrate is easy to harden after treading. Therefore, one of the present inventionIn some embodiments, the root planting medium of the root planting medium layer 121 includes medium coarse sand, turfy soil, and organic fertilizer. Further, the ratio of medium coarse sand to peatmoss may be 3: 1-5: for example, the ratio of medium coarse sand to turfy soil may be 3: 1, or 4:1, or 4.5: 1, or 5:1, etc.; the dosage of the organic fertilizer can be 1-2 kg/m2. The medium with the medium coarse sand and the turfy soil matched plays a good role in water and fertilizer retention, and meanwhile, the medium has good porosity and is beneficial to the growth of plant roots. Wherein, the organic fertilizer can be selected from conventional organic fertilizers sold in the market, and also can be selected from agricultural biological organic fertilizers and the like. Further, in some embodiments, the coarse medium sand contains more than 80% of particles with a particle size of 0.25-1.0 mm.
Further, the present invention also relates to a method for constructing the above mixed grass lawn, which comprises: a planting layer 120 is laid on the supporting layer 110, and the mixed grass 130 is planted on the planting layer 120.
In some embodiments, planting the mixed grass specifically comprises: adopt the mode of mechanical seeding to sow, carry out the earthing again and suppress, reuse non-woven fabrics covers, connects after the seedling unearths and removes the non-woven fabrics. Further, in some embodiments, the seeding rate of the mechanical seeding is 15-35g/m2. And the earthing and pressing is to earthing for more than 2 times by using an earthing rake, the thickness of the earthing is 0.15-0.25 cm, and then, pressing for 2-3 times by using a 50-80kg roller after earthing. The uniformity of seeding can be guaranteed through mechanical seeding, the planeness of the grown lawn is good, and by adopting the earthing operation, the close contact between the grass seeds and the soil and certain compactness of the lawn bed can be guaranteed.
The non-woven fabrics are selected for covering after seeding, the non-woven fabrics can preserve heat and moisture, prevent seed loss and reduce runoff scouring the surface of the ground to cause surface hardening, so that the grass on the growing lawn can have stronger life vitality and the treading resistance is improved.
Further, some embodiments of the present invention also relate to a method of constructing the above-described walking lawn 100, which includes: a layer of honeycomb cells 122 is laid on the supporting layer 110, and then root planting substrates are filled and laid in the honeycomb cells 122 and are made to sink over the honeycomb cells 122 and to be higher by 3-5 cm, so as to form a root planting substrate layer 121.
According to some embodiments, the root planting substrate is compacted or settled once per 4-5 cm thickness of the filled root planting substrate when being filled and laid. The capability of improving water and soil conservation is facilitated by multiple compaction or settlement.
According to some embodiments, the construction method further comprises planting mixed grass on the root planting layer 121, wherein the mixed grass comprises gramineous subsurface propagation type pasture and turf grass, and the gramineous subsurface propagation type pasture accounts for 10-30% of the mixed grass.
Further, the maintenance of the treading resistance of the walking lawn 100 is also closely related to the growth performance of the mixed grass planted on the lawn, and thus the construction process thereof further includes maintaining the constructed walking lawn 100 and trimming the mixed grass to a height of 5-8cm above the ground surface. Specifically, maintaining the walking lawn 100 includes: watering once every 10-15 days, wherein each time of watering is permeable, so that soil with the depth of 10cm underground is wet; fertilizing once a month, preferably applying a compound fertilizer, wherein the fertilizing amount is 18-25 g/m2Preferably, the compound fertilizer is a 15-15-15 compound fertilizer. Above-mentioned maintenance process is to mixing the careless maintenance means that suits of planting, can make and carry out to have fine growth performance for a long time between the multiple grass of mixed planting, and then after being trampled, the grass is also difficult dead, can resume fast.
Some embodiments of the present invention also relate to a method of constructing a walking lawn, comprising: firstly, foundation arrangement is carried out, 20-30cm is dug downwards, and the foundation is compacted and settled. And paving a 5-10cm gravel drainage layer, wherein the gravel has the particle size of 1-3 cm. Then, according to 100-2Laying the geotextile 111, laying 2-5 cm of root system matrix on the geotextile 111, laying the honeycomb cells 122 with the specification height of 7-10cm, continuously laying the root system matrix in the honeycomb cells 122 to ensure that the root system matrix submerges 3-5 cm of the honeycomb cells, compacting or settling the matrix once every 5cm of the matrix is filled, and mechanically sowing for 2-4 times in windless or breezy weather. And (5) covering soil and compacting: after sowing, covering soil with soil-covering rake for more than 2 times to cover thick0.2cm, and then compacting with a 50-80kg roller for 2 times. Then, non-woven fabrics are selected for covering, and the non-woven fabrics are removed after the seedlings come out of the soil.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
Firstly, foundation arrangement is carried out, 24cm is dug downwards, the foundation is compacted and settled to enable the middle of the foundation to be high and two sides to be low, the gradient is about 5 per mill, then a 8cm gravel drainage layer is paved on the foundation, wherein the gravel particle size is 1-3 cm.
Secondly, 100g/m of water is drained on the gravel drainage layer2Laying geotextile, laying 14cm root system planting matrix on the geotextile, and compacting the matrix once every 5cm of filling matrix. Wherein, root system planting matrix includes: the fertilizer comprises medium and coarse sand, turfy soil and an organic fertilizer, wherein the mass ratio of the medium and coarse sand to the turfy soil is 3: 1, the dosage of the organic fertilizer is 1kg/m2The medium coarse sand is 83% of medium coarse sand with the grain diameter of 0.25-1.0 mm. The root system planting matrix is obtained by uniformly mixing medium-coarse sand, turfy soil and organic fertilizer according to the proportion.
Then, planting grass, namely 30 percent of leymus chinensis, 45 percent of tall fescue elfin and 25 percent of poa annua midnight No. 2, is sown on the root system planting layer. In windless or breezy weather, mechanical sowing is carried out for 4 times. And (5) covering soil and compacting: after sowing, soil was covered with a soil covering rake for 2 times or more, with a thickness of 0.2cm, and then pressed with a 60kg roller for 2 times. Then, non-woven fabrics are selected for covering, and the non-woven fabrics are removed after the seedlings come out of the soil.
And then, performing daily maintenance on the lawn, wherein the height of the trimmed lawn is 6cm higher than the ground surface, grass scraps can be directly scattered on the ground surface, the lawn is watered for 1 time in 10 days, each time, the lawn is watered thoroughly, and the soil 10cm below the ground is wet. Applying fertilizer to lawn 1 time per month, (15-15-15) compound fertilizer 20g/m2。
Example 2
Firstly, foundation arrangement is carried out, 30cm is dug downwards, the foundation is compacted and settled to enable the middle of the foundation to be high and two sides to be low, the gradient is about 4 per mill, then a 10cm gravel drainage layer is paved on the foundation, wherein the gravel particle size is 1-3 cm.
Secondly, the water content of the crushed stone is 150g/m on the crushed stone drainage layer2Laying earth workAnd (3) laying 20cm of root system planting matrix on the geotextile, wherein the root system planting matrix comprises: medium coarse sand, turfy soil and organic fertilizer, wherein the mass ratio of the medium coarse sand to the turfy soil is 5:1, and the dosage of the organic fertilizer is 2kg/m2The medium coarse sand is 85% of medium coarse sand with the grain diameter of 0.25-1.0 mm. The root system planting matrix is obtained by uniformly mixing medium-coarse sand, turfy soil and organic fertilizer according to the proportion.
And then, planting grass on the root planting layer, wherein the grass seeds are planted by mixing gramineous inferior propagation type pasture and turfgrass, and the gramineous inferior propagation type pasture accounts for 30%. Grass of Gramineae is selected from bent-leaf type, and grass of lawn is selected from carpet grass. In windless or breezy weather, mechanical sowing is carried out for 3 times. And (5) covering soil and compacting: after sowing, soil was covered with a soil covering rake for 2 times or more, with a thickness of 0.2cm, and then pressed with a 70kg roller for 2 times. Then, non-woven fabrics are selected for covering, and the non-woven fabrics are removed after the seedlings come out of the soil.
And then, performing daily maintenance on the lawn, wherein the height of the trimmed lawn is 8cm higher than the ground surface, grass scraps can be directly scattered on the ground surface, the lawn is watered for 1 time in 15 days, each time, the lawn is watered thoroughly, and the soil 10cm below the ground is wet. Applying fertilizer to lawn 1 time per month, (15-15-15) compound fertilizer 25g/m2。
Example 3
Firstly, foundation arrangement is carried out, 20cm is dug downwards, the foundation is compacted and settled to enable the middle of the foundation to be high and two sides to be low, the gradient is about 5 per mill, then a 5cm gravel drainage layer is paved on the foundation, wherein the gravel particle size is 1-3 cm.
Secondly, the water content of the crushed stone is 120g/m on the crushed stone drainage layer2Laying geotextile, laying 3cm of root system planting matrix on the geotextile, laying a layer of honeycomb grid chamber with the specification height of 8cm, continuously filling the root system planting matrix into the honeycomb grid chamber, and finally enabling the root system planting matrix to sink 4cm above the top of the honeycomb grid chamber and compacting the matrix once every 5cm of the filled matrix. Wherein, root system planting matrix includes: medium and coarse sand, turfy soil and organic fertilizer, wherein the mass ratio of the medium and coarse sand to the turfy soil is 4:1, the dosage of the organic fertilizer is 1.5kg/m2The medium coarse sand is 90% of medium coarse sand with the grain diameter of 0.25-1.0 mm. The root system planting matrix consists of medium and coarse sand, turfy soil and organic fertilizer in the proportionMixing uniformly to obtain the product.
And then, planting grass on the root planting layer, wherein the grass seeds are planted by mixing gramineous inferior propagation type pasture and turfgrass, and the gramineous inferior propagation type pasture accounts for 15%. The lower propagation type forage grass of the gramineae is a combination of fescue and old mango wheat, the fescue and the old mango wheat account for half of the forage grass respectively, and the turfgrass is bermuda grass. In windless or breezy weather, mechanical sowing is carried out for 2 times. And (5) covering soil and compacting: after sowing, soil is covered for more than 2 times by a soil covering rake, the covering thickness is 0.2cm, and then the soil is pressed for 2 times by a 50-80kg roller. Then, non-woven fabrics are selected for covering, and the non-woven fabrics are removed after the seedlings come out of the soil.
And then, performing daily maintenance on the lawn, wherein the height of the trimmed lawn is 6cm higher than the ground surface, grass scraps can be directly scattered on the ground surface, the lawn is watered for 1 time in 13 days, each time, the lawn is watered thoroughly, and the soil 10cm below the ground is wet. Applying fertilizer to lawn 1 time per month, (15-15-15) compound fertilizer 18g/m2。
Example 4
Firstly, foundation arrangement is carried out, 26cm is dug downwards, the foundation is compacted and settled to enable the middle of the foundation to be high and two sides to be low, the gradient is about 5 per mill, then a 8cm gravel drainage layer is paved on the foundation, wherein the gravel particle size is 1-3 cm.
Secondly, the water content of the crushed stone is 120g/m on the crushed stone drainage layer2Laying geotextile, laying 5cm of root system planting matrix on the geotextile, laying a layer of honeycomb grid chamber with the specification height of 8cm, continuously filling the root system planting matrix into the honeycomb grid chamber, and finally enabling the root system planting matrix to sink 5cm above the top of the honeycomb grid chamber and compacting the matrix once every 5cm of the filled matrix. Wherein, root system planting matrix includes: medium coarse sand, turfy soil and organic fertilizer, wherein the mass ratio of the medium coarse sand to the turfy soil is 4:1, and the dosage of the organic fertilizer is 1.5kg/m2The medium coarse sand is 83% of medium coarse sand with the grain diameter of 0.25-1.0 mm. The root system planting matrix is obtained by uniformly mixing medium-coarse sand, turfy soil and organic fertilizer according to the proportion.
And then, paving, sowing and planting grass, wherein grass seeds are planted by mixing gramineous inferior propagation type pasture with lawn grass, and the gramineous inferior propagation type pasture accounts for 25%. The lower breeding type forage grass of the gramineae is a combination of awnless brome, Chinese wildrye and curvelet grass, the proportion of the three grasses is equal, and the lawn grass is bentgrass. Mechanically sowing for 3 times in windless or breezy weather. And (5) covering soil and compacting: after sowing, soil was covered with a soil covering rake for 2 times or more, with a thickness of 0.2cm, and then pressed with a 60kg roller for 2 times. Then, non-woven fabrics are selected for covering, and the non-woven fabrics are removed after the seedlings come out of the soil.
And then, performing daily maintenance on the lawn, wherein the height of the trimmed lawn is 7cm higher than the ground surface, grass scraps can be directly scattered on the ground surface, the lawn is watered for 1 time in 13 days, each time, the lawn is watered thoroughly, and the soil 10cm below the ground is wet. Applying fertilizer to lawn 1 time per month, (15-15-15) compound fertilizer 20g/m2。
Example 5
Firstly, foundation arrangement is carried out, 21cm is dug downwards, the foundation is compacted and settled to enable the middle of the foundation to be high and two sides to be low, the gradient is about 5 per mill, then a 8cm gravel drainage layer is paved on the foundation, wherein the gravel particle size is 1-3 cm.
Secondly, the water content of the crushed stone is 120g/m on the crushed stone drainage layer2Laying geotextile, laying a layer of honeycomb cells with the specification and height of 8cm on the geotextile, filling root system planting matrix into the honeycomb cells, and finally enabling the root system planting matrix to sink 5cm above the tops of the honeycomb cells, and compacting the matrix once every 5cm of the filled matrix. Wherein, root system planting matrix includes: medium coarse sand, turfy soil and organic fertilizer, wherein the mass ratio of the medium coarse sand to the turfy soil is 4:1, and the dosage of the organic fertilizer is 1.5kg/m2The medium coarse sand is 85% of medium coarse sand with the grain diameter of 0.25-1.0 mm. The root system planting matrix is obtained by uniformly mixing medium-coarse sand, turfy soil and organic fertilizer according to the proportion.
And then, planting grass on the root planting layer, wherein the grass seeds are planted by mixing gramineous lower propagation type pasture and turfgrass, and the gramineous lower propagation type pasture accounts for 25%. The lower propagation type forage grass of the Gramineae is a combination of awnless brome, leymus chinensis and teff grass with equal proportion. Mechanically sowing for 2-4 times in windless or breezy weather. And (5) covering soil and compacting: after sowing, soil is covered for more than 2 times by a soil covering rake, the covering thickness is 0.2cm, and then the soil is pressed for 2 times by a 50-80kg roller. Then, non-woven fabrics are selected for covering, and the non-woven fabrics are removed after the seedlings come out of the soil.
Then, the lawn is maintained daily and the lawn is trimmed to a heightThe grass scraps can be directly scattered on the ground surface 7cm higher than the ground surface, the lawn is watered for 1 time in 13 days, the lawn is watered thoroughly each time, and the soil 10cm below the ground is moist. Applying fertilizer to lawn 1 time per month, (15-15-15) compound fertilizer 20g/m2。
Example 6
This example differs from example 4 only in that the grass seed selected for sowing the grass is bentgrass and ryegrass in a ratio of 1: 1.
example 7
The difference between the embodiment and the embodiment 4 is that the root system planting substrate only comprises medium-coarse sand and organic fertilizer.
Example 8
This example differs from example 4 only in that no geotextile was laid over the gravel drainage layer and the root planting substrate and honeycomb cells were laid directly on top.
Example 9
This example differs from example 4 only in that the root system planting medium was filled up to 5cm without being compacted or sedimented.
Example 10
The difference between the embodiment and the embodiment 4 is only that in the root system planting substrate, the medium coarse sand with the grain diameter of 0.25-1.0 mm only accounts for 50%.
Example 11
This example differs from example 4 only in that the filling of the root system planting medium is carried out 8cm above the top of the cells of the honeycomb.
Example 12
This example differs from example 4 only in that the filling of the root system planting medium was carried out 2cm above the top of the cells of the honeycomb.
Example 13
This example differs from example 4 only in that the root system planting medium is filled to a level flush with the top of the honeycomb cells.
Example 14
The present example is different from example 4 only in that, when grass is planted by laying and sowing, artificial sowing is performed without performing operations of covering soil and non-woven fabric.
Comparative example
Firstly, foundation arrangement is carried out, 26cm is dug downwards, the foundation is compacted and settled, and a root system planting matrix with the thickness of 26cm is paved. Wherein, root system planting matrix includes: medium coarse sand, turfy soil and organic fertilizer, wherein the mass ratio of the medium coarse sand to the turfy soil is 4:1, and the dosage of the organic fertilizer is 1.5kg/m2The medium coarse sand is 83% of medium coarse sand with the grain diameter of 0.25-1.0 mm. The root system planting matrix is obtained by uniformly mixing medium-coarse sand and turfy soil organic fertilizer according to the proportion. Then, bentgrass is planted on the root planting substrate.
Test examples
The lawns constructed according to the methods in examples 1 to 14 and the comparative example were subjected to a treading resistance test, specifically: a person weighing about 70kg tramples 8 times a day, tramples 15 minutes each time, tramples one hour apart for 7 days each time, observe the percentage of lawn alopecia areata after continuously trampling for 7 days, and then observe the lawn recovery condition. The experimental results are shown in table one.
Watch 1
| Experimental group | Alopecia areata proportion after 7 days | Recovery situation |
| Example 1 | 38％ | Recovering after stopping trampling for 12 days |
| Example 2 | 37％ | Recovering after 13 days |
| Example 3 | 18％ | Recovering after 7 days |
| Example 4 | 14％ | Recovering after 5 days |
| Example 5 | 20％ | Recovering after 10 days |
| Example 6 | 21％ | Recovering after stopping trampling for 12 days |
| Example 7 | 24％ | Recovering after 13 days |
| Example 8 | 29％ | Recovering after 14 days |
| Example 9 | 24％ | Recovering after stopping trampling for 12 days |
| Example 10 | 17％ | Recovering after 8 days |
| Example 11 | 22％ | Recovering after 9 days |
| Example 12 | 25％ | Recovering after 15 days |
| Example 13 | 43％ | Recovery 12 days after stopping trampling |
| Example 14 | 25％ | Recovering after stopping trampling for 10 days |
| Comparative example | 81％ | No recovery after 30 days after stopping trampling |
From the above experimental results, it can be seen that the treading resistance of the lawn obtained by the construction method according to the embodiment of the present invention is greatly improved compared to the treading resistance and the recovery capability of the conventional lawn in the comparative example, and the lawn has the basic treading requirements of the walking lawn. Further comparing the experimental results of example 5 and example 4, it can be seen that the application of a layer of root system planting medium between the geotextile and the honeycomb cells is beneficial to improving the treading performance and the recovery capability of the lawn. As can be seen by comparing example 6 with example 4, the mixed grass species are planted to improve the treading resistance and the restorability of the lawn. It can be seen by comparing example 7 with example 4 that the choice of root system matrix also has some effect on the final treading resistance. It can be seen from comparison between example 8 and example 4 that the geotextile facilitates the loss of soil with water, and thus, the growth performance of the lawn grass can be enhanced, and the treading resistance can be improved. By comparing example 9 with example 4, it can be seen that the compacting operation of the filled root system planting medium is beneficial to the growth of the grass on the lawn, thereby improving the treading resistance thereof. By comparing example 10 with example 4, it can be seen that the ratio of the particle size of the medium coarse sand also has an influence on the lawn performance to some extent. Further, comparing example 4 with examples 11-13, it can be seen that the position of the honeycomb cells in the root system planting matrix layer is very critical to improving the anti-treading performance of the lawn, and the too thick or too thin matrix layer on the honeycomb cells can cause the anti-treading performance to be reduced. Further, by comparing example 14 with example 4, it can be seen that the mechanical seeding and the seeding operation such as the mulching and the non-woven fabric covering after the seeding are advantageous for improving the growth performance of the grass on the lawn and further improving the treading resistance.
In conclusion, the mixed grass planting and the honeycomb cells are combined to further improve the treading resistance of the lawn on the basis that the treading resistance of a single common lawn grass can be greatly improved by the aid of 10-30% of the gramineous inferior propagation type pasture and the common lawn grass.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (1)
1. A method for building a mixed grass walking lawn is characterized by comprising the following steps:
s1, foundation arrangement: digging 20-30cm downwards, compacting and settling the foundation to ensure that the middle of the foundation is high and the two sides are low, and the gradient is 3-5 per mill;
s2, laying a supporting layer: paving a gravel drainage layer of 5-10cm on the surface of the foundation as a supporting layer, wherein the particle size of gravel is 1-3 cm;
s3, laying geotextile: 100-150g/m on the gravel drainage layer of the supporting layer2Laying geotextile, wherein the laying of geotextile can prevent the root system planting matrix from sliding down to the gravel drainage layer along with water seepage;
s4, laying a planting layer: laying a planting layer on the geotextile, wherein the planting layer comprises a root system planting matrix and honeycomb cells, and the laying method of the planting layer comprises the steps of firstly laying the root system matrix of 2-5 cm on the geotextile, then laying the honeycomb cells with the specification height of 7-10cm, and then continuously laying the root system matrix in the honeycomb cells to ensure that the root system matrix is 3-5 cm beyond the honeycomb cells; when the root planting matrix is filled and laid, the root planting matrix is compacted or settled once when the root planting matrix is filled to a thickness of 4-5 cm, and the water and soil conservation capacity can be improved through multiple compaction or settlement;
s5, mixed grass planting: planting mixed grass on the surface of the planting layer with the root system, wherein the mixed grass comprises gramineous inferior propagation type pasture and turfgrass, and the gramineous inferior propagation type pasture accounts for 10-30% of the mixed grass; the concrete steps of planting the mixed grass are as follows: firstly, sowing in a mechanical sowing mode, wherein the sowing quantity of the mechanical sowing is 15-35g/m2In windless or breezy weather, mechanical sowing is carried out for 2-4 times, the mechanical sowing can ensure the uniformity of sowing, the planeness of the grown lawn is good, then earthing and pressing are carried out, earthing is carried out for more than 2 times by using an earthing rake, the thickness of the earthing is 0.15-0.25 cm, the earthing is carried out for 2-3 times by using a 50-80kg roller after earthing, then the non-woven fabric is used for covering, and finally the non-woven fabric is removed after the seedlings come out of the soil;
s6, lawn maintenance: when the constructed walking lawn is maintained, the height of the mixed grass is trimmed to be 5-8cm higher than the ground surface; the concrete maintenance means is as follows: watering once every 10-15 days, wherein each time of watering is permeable, so that soil with the depth of 10cm underground is wet; fertilizing once a month, and applying a compound fertilizer with the fertilizing amount of 18-25 g/m2The compound fertilizer is 15-15-15 compound fertilizer, and the mixing is completedAnd (5) constructing the grass walking lawn.
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