CN110972893A - Freeze-thawing resistant planting base material for greening in ultrahigh altitude area and use method thereof - Google Patents
Freeze-thawing resistant planting base material for greening in ultrahigh altitude area and use method thereof Download PDFInfo
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
- A01G24/15—Calcined rock, e.g. perlite, vermiculite or clay aggregates
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
Abstract
The invention provides a freeze-thaw resisting greening planting base material suitable for an ultrahigh altitude area and a using method thereof. The planting substrate provided by the invention has higher strength and freeze-thaw resistance, can reduce the water and soil loss phenomenon caused by frequent rain wash, and simultaneously has the beneficial effect of providing sufficient water for plant growth.
Description
Technical Field
The invention relates to the technical field of planting matrixes, in particular to a planting matrix suitable for an ultrahigh altitude area.
Background
The ultra-high altitude area in China has the characteristic of high and cold in winter, and the strength of the greening substrate is reduced due to repeated freezing and thawing, so that the greening substrate cannot resist frequent rainwater washing in rainy seasons, water and soil loss is caused, and the greening effect is reduced, therefore, the improvement of the freezing and thawing resistance of the greening substrate is beneficial to the development of greening work in the ultra-high altitude area, the greening maintenance cost is reduced, and the greening effect is improved. The climate characteristics of ultra-high altitude areas cause the evaporation capacity of the earth surface to be larger than the precipitation capacity, the vegetation growth in the greening work needs a large amount of water, and the common method for increasing the freeze-thaw resistance of the material is to perform water proofing treatment or add additives to reduce the water content in the material, but the methods are contrary to the high water demand of the greening work.
CN103664325B provides a flexible molecular film spray-seeding greening matrix and a method thereof, which is composed of polyvinyl alcohol, crop straw crushed materials, rice hulls, a water-retaining agent, an adhesive, a stabilizer, a puffed farmyard manure and a biological slow-release fertilizer according to a certain proportion. The resultant has good water absorption and air permeability, and can provide good living environment for the rapid growth of later vegetation. Due to lower structural strength and higher air permeability, the air-permeable composite material is not suitable for climatic conditions of concentrated rainfall and large annual evaporation capacity in rainy seasons in ultrahigh altitude areas. CN04817374A provides an organic matter spray-seeding greening matrix, raw materials for preparing the matrix comprise clay, rice hulls, straws, peat and urease inhibitor, the matrix conforms to the development trend of waste recycling, large-scale and industrial treatment and greening requirements, and the related matrix keeps the relative stability of a soil aggregate structure. The freezing resistance and the water retention performance of the composite material are not optimized and improved correspondingly, and the composite material is not suitable for ultrahigh altitude areas.
Disclosure of Invention
The invention provides a freeze-thaw resistant greening planting substrate suitable for an ultrahigh altitude area and a use method thereof, and solves the technical problem that a planting substrate in the prior art is not suitable for the ultrahigh altitude area, wherein the ultrahigh altitude in the application refers to an altitude of more than 3500 m.
The invention is realized by the following steps: including the anti freeze-thaw permeable layer that is located the upper strata and the guarantor's water layer that is located the lower floor, anti freeze-thaw permeable layer with guarantor's water lays the isolation layer between the layer.
As a preferred embodiment, the freeze-thaw resistant permeable layer comprises the following components in parts by weight: 50-60 parts of clay, 20-30 parts of coarsely crushed highland barley straw, 0.5-1 part of casein, 0.1-0.2 part of water repellent and 80-90 parts of water.
As a preferred embodiment, the water repellent is a silane based powdered water repellent.
As a preferred embodiment, the length of the coarsely crushed highland barley straws is 1-2 cm, and the water content is 10% -15%.
As a preferred embodiment, the water retention layer comprises the following components in parts by weight: 50-60 parts of clay, 20-30 parts of finely crushed highland barley straw, 2-3 parts of yak excrement, 0.5-1 part of casein, 0.1-0.2 part of water-retaining agent and 80-90 parts of water.
As a preferred embodiment, the water-retaining agent is a straw-based water-retaining agent.
As a preferred embodiment, the length of the finely ground highland barley straws is 0.3-0.5 cm, and the water content is 10% -15%.
In a preferred embodiment, the isolation layer is a degradable plastic film, the degradable plastic film comprises a plurality of continuous open hole regions, the width of each open hole region is 1m, three rows of perforations are arranged in the center of each open hole region, the diameter of each perforation is 5cm, and the distance between every two adjacent perforations is 20 cm.
As a preferred embodiment, the clay has a sand content of < 8% and a water content of < 18%.
The application method of the freeze-thaw resistant planting base material suitable for the ultrahigh altitude area comprises the following steps:
(1) the method comprises the following steps of arranging a field to be repaired into a ridge-shaped structure with alternately arranged concave and convex parts distributed in a strip shape, wherein the widths of grooves and bulges are 1m, the height difference between the bulges and the grooves is 5cm, and the distance between every two adjacent grooves is 1 m;
(2) mix water-retaining layer's all components, evenly spray-seeding to the place, spray-seeding thickness is 5 ~ 7cm, lays degradable plastic film on the water-retaining layer, degradable plastic film's trompil district with the recess direction is unanimous, and then mix anti freeze thawing permeable bed all components, evenly spray-seeding on the degradable plastic film, spray-seeding thickness 1 ~ 2 cm.
The invention has the beneficial effects that: according to the freeze-thaw resistant planting base material suitable for the ultrahigh altitude area, the additive is added to the upper layer, so that the base material has high strength and freeze-thaw resistance, the water and soil loss phenomenon caused by frequent rain wash can be reduced, and meanwhile, the base material has high porosity and cohesive force due to the addition of the coarse fibers and other materials, does not influence the infiltration of water, and has high erosion resistance; the water storage and water retention capacity of the lower-layer matrix can be improved by adding the finely crushed highland barley straws into the lower-layer matrix, the water content of the lower-layer matrix can be improved, the water retention property is good, and necessary water can be provided for the growth of plants; the casein used in the invention is industrial casein, and the casein is used as an adhesive to improve the structural performance of the matrix; the degradable plastic film laid on the middle layer is provided with the drain holes, so that the water on the upper layer of the base material can be ensured to seep downwards, meanwhile, the evaporation of the water on the lower layer is reduced, and the requirement of plant growth on the water is met. And (3) arranging the site to be repaired, arranging the soil into a ridge structure with alternate concave and convex, so that rainwater can be conveniently gathered in the grooves, and the lower-layer matrix can be infiltrated through the perforations on the degradable plastic film of the grooves.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a substrate structure according to an embodiment of the present invention;
FIG. 2 is a schematic width view of the protrusions and grooves of FIG. 1;
FIG. 3 is a schematic diagram of the opening of an opening region of a degradable plastic film, wherein the pore diameter is 5cm and the pitch is 20 cm.
In the figure: 1-freeze-thaw resistant permeable layer; 2-degradable plastic film; 3-water retention layer; 4-bulge; 5-a groove; 6-aperture; 7-pitch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1
The application method of the freeze-thaw resistant planting base material suitable for the ultrahigh altitude area comprises the following steps:
(1) the method is characterized in that a field to be repaired is arranged, referring to attached drawings 1 and 2, the field to be repaired is arranged into a ridge structure with alternately arranged concave and convex parts distributed in a strip shape, the width of each groove 5 and the width of each protrusion 4 are both 1m, the height difference between each protrusion 4 and each groove 5 is 5cm, and the distance between every two adjacent grooves is 1 m.
(2) Preparing a lower water-retaining layer 3 by spraying according to the following components in parts by weight: 56 parts of clay, 28 parts of finely crushed highland barley straws, 2 parts of yak excrement, 0.8 part of casein, 0.2 part of water-retaining agent and 88 parts of water, wherein the water-retaining agent is a straw-based water-retaining agent, the length of the finely crushed highland barley straws is 0.4cm, the water content is 13%, the sand content of the clay is less than 8%, and the water content is less than 18%. And (3) uniformly spraying the water retention layer 3 on the field finished in the step (1), wherein the spraying thickness is 7 cm.
(3) Laying a degradable plastic film 2 on a lower substrate, wherein the degradable plastic film 2 comprises a plurality of continuous perforated areas, the width of each perforated area is 1m, and referring to the attached figure 3, the perforated areas are perforated by 3 rows along the direction of the grooves 5, namely 3 rows of perforations are perforated in the centers of the perforated areas, the perforation aperture 6 is 5cm, and the hole distance 7 is 20 cm.
(4) Preparing a freeze-thaw resistant permeable layer 1 by a spray seeding mode according to the following components in parts by weight: 57 parts of clay, 28 parts of coarsely crushed highland barley straws, 1 part of casein, 0.2 part of water repellent and 87 parts of water, wherein the water repellent is a silane-based powder water repellent, the length of the coarsely crushed highland barley straws is 1.5cm, the water content of the coarsely crushed highland barley straws is 13%, the sand content of the clay is less than 8%, and the water content of the clay is less than 18%. And (3) spraying the freeze-thaw resistant permeable layer 1 on the degradable plastic film 2, wherein the spraying thickness is 2 cm.
Example 2
The application method of the freeze-thaw resistant planting base material suitable for the ultrahigh altitude area comprises the following steps:
(1) the method is characterized in that a field to be repaired is arranged, referring to attached drawings 1 and 2, the field to be repaired is arranged into a ridge structure with alternately arranged concave and convex parts distributed in a strip shape, the width of each groove 5 and the width of each protrusion 4 are both 1m, the height difference between each protrusion 4 and each groove 5 is 5cm, and the distance between every two adjacent grooves is 1 m.
(2) Preparing a lower water-retaining layer 3 by spraying according to the following components in parts by weight: 50 parts of clay, 30 parts of finely crushed highland barley straws, 2 parts of yak excrement, 1 part of casein, 0.2 part of water-retaining agent and 90 parts of water, wherein the water-retaining agent is a straw-based water-retaining agent, the length of the finely crushed highland barley straws is 0.5cm, the water content is 10%, the sand content of the clay is less than 8%, and the water content is less than 18%. And (3) uniformly spraying the water retention layer 3 on the field finished in the step (1), wherein the spraying thickness is 7 cm.
(3) Laying a degradable plastic film 2 on the lower substrate in the step (2), wherein the degradable plastic film 2 comprises a plurality of continuous perforated areas, the width of each perforated area is 1m, referring to the attached drawing 3, the perforated areas are provided with 3 rows of perforations along the direction of the grooves 5, namely, 3 rows of perforations are arranged in the centers of the perforated areas, the aperture of each perforation is 5cm, and the pitch 7 is 20 cm.
(4) Preparing a freeze-thaw resistant permeable layer 1 by a spray seeding mode according to the following components in parts by weight: 50 parts of clay, 30 parts of coarsely crushed highland barley straws, 1 part of casein, 0.2 part of water repellent and 90 parts of water, wherein the water repellent is a silane-based powder water repellent, the coarsely crushed highland barley straws are 1cm in length, the water content is 15%, the sand content of the clay is less than 8%, and the water content is less than 18%. And uniformly spraying the freeze-thaw resistant permeable layer 1 on the degradable plastic film 2, wherein the spraying thickness is 2 cm.
Example 3
The application method of the freeze-thaw resistant planting base material suitable for the ultrahigh altitude area comprises the following steps:
(1) the method is characterized in that a field to be repaired is arranged, referring to attached drawings 1 and 2, the field to be repaired is arranged into a ridge structure with alternately arranged concave and convex parts distributed in a strip shape, the width of each groove 5 and the width of each protrusion 4 are both 1m, the height difference between each protrusion 4 and each groove 5 is 5cm, and the distance between every two adjacent grooves is 1 m.
(2) Preparing a lower water-retaining layer by spraying according to the following components in parts by weight: 60 parts of clay, 20 parts of finely crushed highland barley straws, 3 parts of yak excrement, 0.5 part of casein, 0.1 part of water-retaining agent and 80 parts of water, wherein the water-retaining agent is a straw-based water-retaining agent, the length of the finely crushed highland barley straws is 0.3cm, the water content is 15%, the sand content of the clay is less than 8%, and the water content is less than 18%. And (3) uniformly spraying the water retention layer on the field finished in the step (1), wherein the spraying thickness is 5 cm.
(3) Laying a degradable plastic film on a lower substrate, wherein the degradable plastic film 2 comprises a plurality of continuous perforated areas, the width of each perforated area is 1m, referring to the attached figure 3, the perforated areas are perforated by 3 rows along the direction of the grooves 5, namely, 3 rows of perforations are perforated in the centers of the perforated areas, the perforation aperture 6 is 5cm, and the hole pitch 7 is 20 cm.
(4) Preparing a freeze-thaw resistant permeable layer by a spray seeding mode according to the following components in parts by weight: 60 parts of clay, 20 parts of coarsely crushed highland barley straws, 0.5 part of casein, 0.1 part of water repellent and 80 parts of water, wherein the water repellent is a silane-based powder water repellent, the coarsely crushed highland barley straws are 2cm in length and have a water content of 10%, the sand content of the clay is less than 8%, and the water content of the clay is less than 18%. And (3) uniformly spraying the freeze-thaw resistant permeable layer on the degradable plastic film obtained in the step (3), wherein the spraying thickness is 1 cm.
Example 4
The application method of the freeze-thaw resistant planting base material suitable for the ultrahigh altitude area comprises the following steps:
(1) the method is characterized in that a field to be repaired is arranged, referring to attached drawings 1 and 2, the field to be repaired is arranged into a ridge structure with alternately arranged concave and convex parts distributed in a strip shape, the width of each groove 5 and the width of each protrusion 4 are both 1m, the height difference between each protrusion 4 and each groove 5 is 5cm, and the distance between every two adjacent grooves is 1 m.
(2) Preparing a lower water-retaining layer 3 by spraying according to the following components in parts by weight: 55 parts of clay, 25 parts of finely crushed highland barley straws, 2.5 parts of yak excrement, 0.75 part of casein, 0.15 part of water-retaining agent and 85 parts of water, wherein the water-retaining agent is a straw-based water-retaining agent, the length of the finely crushed highland barley straws is 0.45cm, the water content is 12%, the sand content of the clay is less than 8%, and the water content is less than 18%. And (3) uniformly spraying the water retention layer 3 on the field finished in the step (1), wherein the spraying thickness is 6 cm.
(3) Laying a degradable plastic film 2 on a lower substrate, wherein the degradable plastic film 2 comprises a plurality of continuous perforated areas, the width of each perforated area is 1m, and referring to the attached figure 3, the perforated areas are perforated by 3 rows along the direction of the grooves 5, namely 3 rows of perforations are perforated in the centers of the perforated areas, the perforation aperture 6 is 5cm, and the hole distance 7 is 20 cm.
(4) Preparing a freeze-thaw resistant permeable layer 1 by a spray seeding mode according to the following components in parts by weight: 55 parts of clay, 25 parts of coarsely crushed highland barley straws, 0.75 part of casein, 0.15 part of water repellent and 85 parts of water, wherein the water repellent is a silane-based powder water repellent, the coarsely crushed highland barley straws are 1.2cm in length and have a water content of 12%, the sand content of the clay is less than 8%, and the water content of the clay is less than 18%. And (3) uniformly spraying the freeze-thaw resistant permeable layer 1 on the degradable plastic film 2 obtained in the step (3), wherein the spraying thickness is 1.5 cm.
Examples of the experiments
In 6 months 2019, 4 examples of the invention were used as experimental groups, two clay spray-seeding layers used in the examples were used as control groups, tests on the freeze-thaw resistance and the water retention capacity of the base material of the invention were performed, the test items were the cohesion of the base material on the upper layer of the control group and 4 experimental groups, and the water content of the base material on the lower layer of the control group and 4 experimental groups, and the results are shown in tables 1 and 2. Wherein the cohesive force detection comprises initial cohesive force and cohesive force after 10 times of repeated freeze thawing, and the water content detection comprises saturated water content and water content after being placed for a week.
TABLE 1 upper matrix freeze thaw resistance data
As can be seen from the cohesiveness data in table 1, the initial cohesiveness of the upper substrate in the present invention is significantly higher than that of the control group, and after repeated freeze-thawing, the cohesiveness is not significantly reduced, and the strength can still be maintained at a higher level.
TABLE 2 Water Retention Performance data for lower substrates
As can be seen from the water content data in table 2, the lower substrate of the present invention has a higher saturated water content, i.e., a better water storage capacity, than the control group; under the condition of the same initial water content, after being placed for one week, the water loss of 4 experimental groups is obviously smaller than that of a control group, which shows that the base material has better water retention capacity.
The invention has the beneficial effects that: according to the freeze-thaw resistant planting base material suitable for the ultrahigh altitude area, the additive is added to the upper layer, so that the base material has high strength and freeze-thaw resistance, the water and soil loss phenomenon caused by frequent rain wash can be reduced, and meanwhile, the base material has high porosity and cohesive force due to the addition of the coarse fibers and other materials, does not influence the infiltration of water, and has high erosion resistance; the water storage and water retention capacity of the lower-layer matrix can be improved by adding the finely crushed highland barley straws into the lower-layer matrix, the water content of the lower-layer matrix can be improved, the water retention property is good, and necessary water can be provided for the growth of plants; the casein used in the invention is industrial casein, and the casein is used as an adhesive to improve the structural performance of the matrix; the degradable plastic film laid on the middle layer is provided with the drain holes, so that the water on the upper layer of the base material can be ensured to seep downwards, meanwhile, the evaporation of the water on the lower layer is reduced, and the requirement of plant growth on the water is met. And (3) arranging the site to be repaired, arranging the soil into a ridge structure with alternate concave and convex, so that rainwater can be conveniently gathered in the grooves, and the lower-layer matrix can be infiltrated through the perforations on the degradable plastic film of the grooves.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. Be suitable for super high altitude area's freeze-thaw resistance planting technique substrate, its characterized in that, including the freeze-thaw resistance permeable bed that is located the upper strata and the guarantor's water layer that is located the lower floor, freeze-thaw resistance permeable bed with lay the isolation layer between the guarantor's water layer.
2. The freeze-thaw resistant planting base material suitable for the ultra-high altitude area as claimed in claim 1, wherein the freeze-thaw resistant permeable layer comprises the following components in parts by weight: 50-60 parts of clay, 20-30 parts of coarsely crushed highland barley straw, 0.5-1 part of casein, 0.1-0.2 part of water repellent and 80-90 parts of water.
3. The freeze-thaw resistant green planting substrate suitable for the ultrahigh altitude area as claimed in claim 2, wherein the water repellent is a silane based powdered water repellent.
4. The freeze-thaw resistant planting technique substrate suitable for the ultra-high altitude area as claimed in claim 3, wherein the length of the coarsely crushed highland barley straw is 1-2 cm, and the water content is 10% -15%.
5. The freeze-thaw resistant planting technique substrate suitable for ultra-high altitude areas as claimed in claim 1, wherein the water retention layer comprises the following components by weight: 50-60 parts of clay, 20-30 parts of finely crushed highland barley straw, 2-3 parts of yak excrement, 0.5-1 part of casein, 0.1-0.2 part of water-retaining agent and 80-90 parts of water.
6. The freeze-thaw resistant planting technique substrate suitable for ultra-high altitude areas as claimed in claim 5, wherein the water retention agent is straw based water retention agent.
7. The freeze-thaw resistant planting technique substrate suitable for ultra-high altitude areas as claimed in claim 6, wherein the length of the finely ground highland barley straw is 0.3-0.5 cm, and the water content is 10% -15%.
8. The freeze-thaw resistant greening planting substrate suitable for ultrahigh altitude areas as claimed in claim 1, wherein the isolation layer is a degradable plastic film, the degradable plastic film comprises a plurality of continuous open areas, the width of each open area is 1m, three rows of perforations are arranged in the center of each open area, the diameter of each perforation is 5cm, and the distance between adjacent perforations is 20 cm.
9. The freeze-thaw resistant planting technique substrate suitable for ultra-high altitude areas as claimed in claim 2 or 5, wherein the clay has a sand content of < 8% and a water content of < 18%.
10. The use method of the freeze-thaw resistant planting base material suitable for the ultrahigh altitude area as claimed in any one of claims 1 to 5, comprising the steps of:
(1) the method comprises the following steps of arranging a field to be repaired into a ridge-shaped structure with alternately arranged concave and convex parts distributed in a strip shape, wherein the widths of grooves and bulges are 1m, the height difference between the bulges and the grooves is 5cm, and the distance between every two adjacent grooves is 1 m;
(2) mix water-retaining layer's all components, evenly spray-seeding to the place, spray-seeding thickness is 5 ~ 7cm, lays degradable plastic film on the water-retaining layer, degradable plastic film's trompil district with the recess direction is unanimous, and then mix anti freeze thawing permeable bed all components, evenly spray-seeding on the degradable plastic film, spray-seeding thickness 1 ~ 2 cm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112219629A (en) * | 2020-10-18 | 2021-01-15 | 昆明理工大学 | Water-retention and heat-preservation method for soil at high cold and high altitude |
| CN114514810A (en) * | 2022-03-01 | 2022-05-20 | 东北农业大学 | Water-saving soil moisture conservation semi-permeable imitation film and construction landfill device thereof |
| CN114622534A (en) * | 2022-03-22 | 2022-06-14 | 水利部牧区水利科学研究所 | Water retention material for preventing water and soil loss and preparation method thereof |
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