CN112913591A - Ecological restoration method for desertified land - Google Patents
Ecological restoration method for desertified land Download PDFInfo
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- CN112913591A CN112913591A CN202110070634.4A CN202110070634A CN112913591A CN 112913591 A CN112913591 A CN 112913591A CN 202110070634 A CN202110070634 A CN 202110070634A CN 112913591 A CN112913591 A CN 112913591A
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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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
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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
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- 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
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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
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/28—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing peat, moss or sphagnum
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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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- 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
- A01G24/40—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
- A01G24/44—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0293—Seed or shoot receptacles
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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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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Abstract
The invention discloses an ecological restoration method for desertified land, and relates to the technical field of desert control. The ecological restoration method disclosed by the invention comprises the steps of soil preparation and water retention, sand barrier laying, plant cultivation and windbreak establishment. The ecological restoration method adopts a multilayer wind prevention and sand fixation method to control desertified land, prevents sand dust from moving, prevents the land from continuing to go on desertification, improves the water holding performance of the soil, improves the granular structure of the soil, and restores the desertified land into an ecological environment suitable for plant growth.
Description
Technical Field
The invention relates to the technical field of desert control, in particular to an ecological restoration method for desertified land.
Background
Desert is mainly a deserted area where the ground is completely covered by sand, plants are very rare, rainwater is rare and air is dry. Desertification causes land degradation and ecological environment deterioration, and the treatment and scientific utilization of desertified land are long-standing important problems in social-economic sustainable development in arid and semiarid regions. Under the natural conditions of drought and rain, the soil environment with insufficient soil moisture preservation and water storage capacity of the sandy soil, and the multiple factors of human activities such as excessive grazing and reclamation, the ecological restoration of the desertified land still faces a plurality of technical difficulties. At present, the desert control method mainly adopts a mode of afforestation to achieve the purposes of wind prevention and sand fixation. But because the water content in the desert is lower, the survival rate of the vegetation is not high, and the sand fixing effect achieved by single use of the afforestation is not obvious, the duration is short, the comprehensive utilization rate is low, and the input cost is high.
The ecological restoration means stopping artificial interference on an ecological system to reduce load pressure, and evolving in an orderly direction depending on self-regulation capacity and self-organization capacity of the ecological system, or gradually restoring a damaged ecological system or developing the ecological system in a virtuous circle direction by using the self-restoration capacity of the ecological system and assisting artificial measures; the method mainly refers to the restoration and reconstruction of a natural ecosystem destroyed under the influence of natural mutation and human activities, and the restoration of the natural state of the ecosystem, and particularly relates to the regional environment comprising forests, grasslands, wastelands, deserts, gobi or two sides of desert traffic and the like.
Disclosure of Invention
The invention aims to provide an ecological restoration method for desertified land. The ecological restoration method can be used for quickly and economically restoring the desert area and improving the soil environment.
The invention is realized by the following steps:
the invention provides an ecological restoration method of desertified land, which comprises the following steps:
soil preparation and water retention: ditching vertically and horizontally in a desertified land area to be treated to form a plurality of grid areas, and filling water retention and sand fixation materials into ditches to form a water retention and sand fixation layer;
a sand barrier laying step: covering a plastic-planted fiber woven mesh on the surface of the water-retaining and sand-fixing layer to form a sand-fixing mesh layer;
plant cultivation: covering a matrix composition mixed with sand plant seeds on the surface of the sand fixing grid layer, pressing the plant plastic fiber woven net and forming a plant protection layer;
the method comprises the following steps: vertical plant fiber woven sand barriers are arranged on two sides of the plant protection layer, and sand is backfilled to press the plant fiber woven sand barriers.
It should be noted that in some embodiments, if the desertified land area to be treated is uneven, the sand dune may be leveled prior to trenching. In addition, the size (i.e., length and width) of each grid area may be set appropriately according to the actual site, for example, 2m × 2m, 2.5m × 2.5m, or 3m × 3 m.
Backfilling sand soil, pressing the plant fiber woven sand barrier, only pressing the bottom of the plant fiber woven sand barrier, and ensuring that the upper part of the plant fiber woven sand barrier is exposed to the ground surface.
The plant protection layer is formed from a matrix composition mixed with the seeds of the psammophyte.
Optionally, in some embodiments of the present invention, the water-retaining and sand-fixing material is a slurry material prepared by mixing, by weight, 550 parts of desert sand 320-.
The raw materials of the water-retaining sand-fixing material are scientifically and reasonably matched, and the water-retaining sand-fixing material adopting the formula forms a water-retaining sand-fixing layer and has higher water-retaining sand-fixing effect.
Optionally, in some embodiments of the invention, the water-retaining sand-fixing layer has a thickness of 50 to 100mm and a width of 70 to 120 mm.
Optionally, in some embodiments of the present invention, the plant plastic fiber woven mesh is a woven mesh formed by weaving plant fiber mesh ropes and polyethylene fiber mesh ropes together.
Optionally, in some embodiments of the invention, the plant plastic fiber woven mesh is a rope mesh woven by net ropes;
alternatively, in some embodiments of the present invention, the net rope comprises a rope core and a plant fiber layer wrapped on the rope core, the rope core is made of polyethylene fibers, or the net rope is made of mixed fibers, and the mixed fibers comprise plant fibers and polyethylene fibers.
Alternatively, in some embodiments of the invention, the mass ratio of the plant fibers to the polyethylene fibers in the mixed fibers is 2: 1-3.
Alternatively, in some embodiments of the invention, the woven plant plastic fiber mesh has a mesh side length of 1 to 50 mm.
Alternatively, in some embodiments of the present invention, the matrix composition is prepared by mixing the following components in parts by weight:
80-90 parts of decomposed chicken manure, 1-2 parts of sodium carboxymethylcellulose, 5-8 parts of modified starch, 0.1-0.2 part of borax, 1-2 parts of humus and 0.5-1 part of calcium carbonate.
Alternatively, in some embodiments of the invention, the matrix composition has a water content of 50% to 60%.
Optionally, in some embodiments of the invention, the thickness of the plant protection layer is 50-100 mm.
Alternatively, in some embodiments of the invention, the weight ratio of the matrix composition to the alhagi sparsifolia seed is from 30 to 40: 1;
the psammophytes are selected from one or more of alhagi sparsifolia, nitraria tangutorum bobr, Calligonum mongolicum, flower stick, firewood, caragana microphylla and haloxylon ammodendron.
Alternatively, in some embodiments of the invention, the alhagi sparsifolia seed is pre-treated with pregermination and coating.
Before the alhagi sparsifolia seeds are used, the alhagi sparsifolia seeds are subjected to pregermination and coating pretreatment, so that the germination rate of the alhagi sparsifolia seeds can be improved.
Optionally, in some embodiments of the invention, the plant fiber woven sand barrier has a height of 200-400 mm. The height is the height exposed on the ground.
The invention has the following beneficial effects:
according to the ecological restoration method, the water-retaining sand-fixing layer, the sand-fixing grid layer and the plant protection layer are arranged from bottom to top to form a multi-layer wind-proof sand-fixing structure, sand barriers are arranged on two sides of the multi-layer structure to form three-dimensional protection, sand dust is prevented from moving, the soil is prevented from continuing to go on deserts, the water-retaining performance of the soil is effectively improved, the granular structure of the soil is improved, and the desertified soil is restored into an ecological environment suitable for plant growth.
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 features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The ecological restoration method for the desertified land provided by the embodiment comprises the following steps:
water conservation is prepared in soil
In a desertified land area to be treated, carrying out sand dune leveling, then ditching vertically and horizontally to divide into a plurality of small grids, timely filling a water-retaining sand-fixing material in the ditch while ditching, and then shaping the water-retaining sand-fixing material to form a water-retaining sand-fixing layer with the thickness of 50mm and the width of 70 mm;
wherein the water-retaining sand-fixing material is a slurry material prepared by mixing 320 parts by weight of desert sand, 5 parts by weight of modified starch, 50 parts by weight of yellow clay, 1 part by weight of sodium alginate, 1 part by weight of palygorskite powder, 50 parts by weight of ceramsite, 1 part by weight of expanded perlite, 15 parts by weight of sawdust powder, 2 parts by weight of gypsum powder and 1 part by weight of epoxy resin and then adding a proper amount of water;
sand barrier is laid to the property of a matter of dispersing
After the water-retaining sand-fixing layer is solidified and shaped, the whole area above the water-retaining sand-fixing layer is covered with a plastic-planted fiber woven net to form a sand-fixing grid layer.
The plant plastic fiber woven net is formed by mixing plant fiber net ropes and polyethylene fiber net ropes, and the mesh side length of the plant plastic fiber woven net is 1 mm.
Cultivation of the plants
Arranging the matrix composition mixed with the alhagi sparsifolia seeds along the water-retaining sand-fixing layer, and forming a plant-protecting layer while compacting the plant-plastic fiber woven mesh;
the matrix composition is a material formed by mixing 80 parts by weight of decomposed chicken manure, 1 part by weight of sodium carboxymethylcellulose, 5 parts by weight of modified starch, 0.1 part by weight of borax, 1 part by weight of humus and 0.5 part by weight of calcium carbonate; the water content of the matrix composition was 30%;
the weight ratio of the matrix composition to the alhagi sparsifolia seeds is 30: 1; the thickness of the plant protection layer is 50 mm; the seed of alhagi sparsifolia is pretreated by pregermination and coating.
Set up prevent wind grass barrier
Vertical plant fiber woven sand barriers are arranged on two sides of the plant protection layer, and sand soil is backfilled to press the plant fiber woven sand barriers; wherein, the height of the plant fiber woven sand barrier is set to be 300 mm.
Example 2
The ecological restoration method for the desertified land provided by the embodiment comprises the following steps:
water conservation is prepared in soil
In a desertified land area to be treated, carrying out sand dune leveling, then ditching vertically and horizontally and dividing into a plurality of small grids, timely filling a water-retaining sand-fixing material in the ditch while ditching, and shaping the water-retaining sand-fixing material to form a water-retaining sand-fixing layer; the thickness of the water-retaining sand-fixing layer is 100mm, and the width is 120 mm;
the water-retaining sand-fixing material is a slurry material prepared by mixing 550 parts by weight of desert sand, 30 parts by weight of modified starch, 25 parts by weight of yellow clay, 3 parts by weight of sodium alginate, 10 parts by weight of palygorskite powder, 5 parts by weight of ceramsite, 3 parts by weight of expanded perlite, 25 parts by weight of wood chip powder, 4 parts by weight of gypsum powder and 2 parts by weight of epoxy resin and then adding a proper amount of water;
sand barrier is laid to the property of a matter of dispersing
After the water-retaining sand-fixing layer is solidified and shaped, covering the plastic-planted fiber woven mesh on the water-retaining sand-fixing layer in the whole area to form a sand-fixing mesh layer;
the plant plastic fiber woven net is a rope net woven by net ropes; the net rope comprises a rope core made of polyethylene fibers and a plant fiber layer wrapped on the rope core, wherein the rope core accounts for 45% of the volume of the net rope. The side length of the mesh of the plant plastic fiber woven net is 50 mm.
Cultivation of the plants
Arranging a matrix composition mixed with the seed of the psammophyte, the cotton stalk, the caragana and the caragana microphylla (ratio 1:1:1) along a water-retention sand-fixing layer, and forming a plant-protection layer while pressing a plant-plastic fiber woven net;
the matrix composition is a material formed by mixing 90 parts of decomposed chicken manure, 2 parts of sodium carboxymethylcellulose, 8 parts of modified starch, 0.2 part of borax, 2 parts of humus and 1 part of calcium carbonate in parts by weight, and the water content of the matrix composition is 40%;
the weight ratio of the matrix composition to the sand plant seeds was 40: 1. The thickness of the plant protection layer is 100 mm. The psammophyte seeds are pre-treated by pregermination and coating.
Set up prevent wind grass barrier
Vertical plant fiber woven sand barriers are arranged on two sides of the plant protection layer, and sand soil is backfilled to press the plant fiber woven sand barriers; the height of the plant fiber woven sand barrier is set to be 600 mm.
Example 3
The ecological restoration method for the desertified land provided by the embodiment comprises the following steps:
water conservation is prepared in soil
In the desertification land area to be treated, sand dunes are leveled, then, a plurality of small grids are divided into furrows by ditching vertically and horizontally, water-retaining sand-fixing materials are timely filled in the furrows while furrowing, and then the water-retaining sand-fixing materials are shaped to form a water-retaining sand-fixing layer with the thickness of 75mm and the width of 90 mm.
The water-retaining sand-fixing material is a slurry material prepared by mixing 455 parts of desert sand, 18 parts of modified starch, 37 parts of yellow clay, 2 parts of sodium alginate, 6 parts of palygorskite powder, 32 parts of ceramsite, 2 parts of expanded perlite, 18 parts of sawdust powder, 3 parts of gypsum powder and 2 parts of epoxy resin by weight and then adding a proper amount of water.
Sand barrier is laid to the property of a matter of dispersing
After the water-retaining sand-fixing layer is solidified and shaped, the whole area above the water-retaining sand-fixing layer is covered with a plastic-planted fiber woven net to form a sand-fixing grid layer.
Wherein, the plant plastic fiber woven net adopts plant fiber and polyethylene fiber according to the weight ratio of 2: 3, a rope net formed by weaving net ropes made of mixed fibers mixed according to the mass ratio; the side length of the mesh of the plant plastic fiber woven net is 30 mm.
Cultivation of the plants
Arranging the matrix composition mixed with the haloxylon ammodendron seeds along the water-retention sand-fixing layer, and forming a plant protection layer while compacting the plant plastic fiber woven mesh;
the matrix composition is a material prepared by mixing 85 parts of decomposed chicken manure, 1.5 parts of sodium carboxymethylcellulose, 6.5 parts of modified starch, 0.15 part of borax, 1.5 parts of humus soil and 0.75 part of calcium carbonate in parts by weight; the base composition had a water content of 58%.
The weight ratio of the matrix composition to the haloxylon ammodendron is 35: 1; the thickness of the plant protection layer is 80 mm. The haloxylon ammodendron seeds are pre-treated by pregermination and coating.
Set up prevent wind grass barrier
Vertical plant fiber woven sand barriers are arranged on two sides of the plant protection layer, and sand soil is backfilled to press the plant fiber woven sand barriers. Wherein, the height of the plant fiber woven sand barrier is set to be 400 mm.
According to the ecological restoration method for the desertified land, provided by the embodiment of the invention, the multi-layer wind-proof and sand-fixation structure is formed by the water-retaining and sand-fixation layer, the sand-fixation grid layer and the plant protection layer from bottom to top, and the sand barriers are arranged on two sides of the multi-layer wind-proof and sand-fixation structure to form three-dimensional protection, prevent sand dust from moving, prevent the land from continuing to go on the desert, improve the water-holding performance of the soil, improve the granular structure of the soil and restore the desertified land into an ecological environment suitable for plant growth.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An ecological restoration method of desertified land is characterized by comprising the following steps:
soil preparation and water retention: ditching vertically and horizontally in a desertified land area to be treated to form a plurality of grid areas, and filling water retention and sand fixation materials into ditches to form a water retention and sand fixation layer;
a sand barrier laying step: covering a plastic-planted fiber woven mesh on the surface of the water-retaining and sand-fixing layer to form a sand-fixing mesh layer;
plant cultivation: covering a matrix composition mixed with sand plant seeds on the surface of the sand fixing grid layer, pressing the plant plastic fiber woven net and forming a plant protection layer;
the method comprises the following steps: vertical plant fiber woven sand barriers are arranged on two sides of the plant protection layer, and sand is backfilled to press the plant fiber woven sand barriers.
2. The ecological restoration method according to claim 1, wherein the water-retaining and sand-fixing material is a slurry material prepared by mixing, by weight, 550 parts of desert sand 320, 5-30 parts of modified starch, 25-50 parts of yellow clay, 1-3 parts of sodium alginate, 1-10 parts of palygorskite powder, 5-50 parts of ceramsite, 1-3 parts of expanded perlite, 15-25 parts of sawdust powder, 2-4 parts of gypsum powder and 1-2 parts of epoxy resin and then adding water.
3. The ecological restoration method according to claim 1 or 2, wherein the water-retaining and sand-fixing layer has a thickness of 50-100mm and a width of 70-120 mm.
4. The ecological restoration method according to claim 1, wherein the plant-plastic fiber mesh grid is a woven mesh formed by co-weaving plant fiber mesh ropes and polyethylene fiber mesh ropes.
5. The ecological restoration method according to claim 1, wherein the plant plastic fiber woven mesh is a rope mesh woven by net ropes;
preferably, the net rope comprises a rope core made of polyethylene fibers and a plant fiber layer wrapped on the rope core, and the rope core accounts for 30% -90% of the volume of the net rope; or the net rope is made of mixed fibers, and the mixed fibers comprise plant fibers and polyethylene fibers;
preferably, in the mixed fiber, the mass ratio of the plant fiber to the polyethylene fiber is 2: 1-3.
6. The ecological restoration method according to claim 4 or 5, wherein the plant plastic fiber woven net has a mesh side length of 1-50 mm.
7. The ecological restoration method according to claim 1 or 2, wherein the matrix composition is prepared by mixing the following components in parts by weight:
80-90 parts of decomposed chicken manure, 1-2 parts of sodium carboxymethylcellulose, 5-8 parts of modified starch, 0.1-0.2 part of borax, 1-2 parts of humus and 0.5-1 part of calcium carbonate;
preferably, the matrix composition has a water content of 50% to 60%.
8. The ecological restoration method according to claim 7, wherein the thickness of the plant protection layer is 50-100 mm.
9. The ecological restoration method according to claim 7, wherein the weight ratio of the matrix composition to the psammophyte seeds is 30-40: 1;
preferably, the psammophyte seeds are subjected to pregermination and coating pretreatment in advance;
preferably, the psammophytes are selected from one or more of camel thorn, nitraria tangutorum bobr, Calligonum rubicundunm, flower stick, poplar, caragana microphylla and haloxylon ammodendron.
10. The ecological restoration method according to claim 1, wherein the height of the plant fiber woven sand barrier is 200-400 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113853863A (en) * | 2021-08-24 | 2021-12-31 | 李攀 | Desertification soil treatment method |
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