CN107018849B - Method for restoring vegetation in arid and rainless areas - Google Patents

Method for restoring vegetation in arid and rainless areas Download PDF

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CN107018849B
CN107018849B CN201710415278.9A CN201710415278A CN107018849B CN 107018849 B CN107018849 B CN 107018849B CN 201710415278 A CN201710415278 A CN 201710415278A CN 107018849 B CN107018849 B CN 107018849B
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planting
parts
arid
water
sea
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CN107018849A (en
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刘广全
史婉丽
土小宁
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China Institute of Water Resources and Hydropower Research
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China Institute of Water Resources and Hydropower Research
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G17/00Cultivation of hops, vines, fruit trees, or like trees
    • A01G17/005Cultivation methods
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/10Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/14Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
    • A01N43/16Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/36Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
    • A01N43/38Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings condensed with carbocyclic rings
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/34Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the groups, e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08Magnoliopsida [dicotyledons]
    • A01N65/20Fabaceae or Leguminosae [Pea or Legume family], e.g. pea, lentil, soybean, clover, acacia, honey locust, derris or millettia
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05DINORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00Other inorganic fertilisers
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity

Abstract

The invention discloses a method for restoring vegetation in arid and rainless areas, which comprises the following steps: (1) leveling and planting the land; (2) treating the planting holes; (3) filling a nutrient medium; (4) transplanting sea-buckthorn seedlings; (5) and (5) covering soil and a film. The method can effectively improve the survival rate of the planted seedlings and the vegetation recovery rate.

Description

Method for restoring vegetation in arid and rainless areas
Technical Field
The invention belongs to the technical field of vegetation restoration, and particularly relates to a method for restoring vegetation in arid and rainless regions.
Background
In recent years, a large amount of rock-soil wound surfaces are generated in resource development and engineering construction of coal mining, roads, railways and the like in northwest areas, and in addition, the desertification of the land in the northwest areas is serious, water and soil resources are in short supply, wind erosion and water erosion are strong, and the regional ecological environment is very fragile. Because most of the regions in northwest China are dry and rainy and have barren land, trees planted directly in most regions are difficult to survive or grow into small old-headed trees, the vegetation survival rate is low, the ecological function is weak, the comprehensive benefit is poor, and the vegetation reconstruction and ecological restoration on the engineering wound surface or the natural degenerated land are quite difficult.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the method for repairing the vegetation in the arid and rainless area, which can effectively solve the problems of low survival rate of transplanted vegetation and difficult vegetation recovery in the arid and rainless area.
A method for restoring vegetation in arid and rainless areas comprises the following steps:
(1) trimming the planting land to be repaired according to a conventional method;
(2) digging a planting hole on the ground surface of the planting field, and thoroughly watering the planting hole with water; the distance between planting holes is 40-50 cm, the depth of the planting holes is 20-30 cm, and the aperture of a hole opening is 5-10 cm;
(3) filling a nutrient medium with the pH value of 5-6 into the planting holes, wherein the addition amount of the nutrient medium is 1/2-2/3 of the depth of the planting holes, and adopting a disinfectant to disinfect the nutrient medium for 40-48 h before filling; the nutrient medium comprises humus, vermiculite, organic fertilizer and a water-retaining agent, wherein the weight ratio of the humus to the vermiculite to the organic fertilizer to the water-retaining agent is 2-4: 1-2: 3-5: 0.5-2;
(4) soaking the transplanted sea-buckthorn seedlings in a rooting solution for 10-15 hours, then burying gravel soil with the thickness of 3-5 cm at the upper end of a nutrient medium, transplanting the sea-buckthorn into the gravel soil, enabling the roots of the sea-buckthorn to contact the nutrient medium, then taking soil on site, and filling and leveling planting holes;
(5) and mixing the rooting solution and the disinfectant in a volume ratio of 1:1, irrigating the planting holes until the planting holes are thoroughly wetted, and covering mulching films on the planting holes to enable the sea-buckthorn to naturally grow, so that the vegetation restoration can be completed.
Further, in the step (3), the weight ratio of the humus to the vermiculite to the organic fertilizer to the water-retaining agent is 2:2:3.5: 1.5.
Further, the organic fertilizer in the step (3) is a compound fertilizer with the proportion of N, Ca, K and P being 0.5:1.5:0.8: 0.6.
Further, the water retention agent in the step (3) comprises acrylic acid, acrylamide, starch, dextrin and N, N '-methylene-bisacrylamide, wherein the weight ratio of the acrylic acid to the acrylamide to the starch to the dextrin to the N, N' -methylene-bisacrylamide is 15:2:3.5:1.4: 0.3.
Further, the disinfectant in the step (3) is thiophanate methyl with the effective component content of 50%.
Further, the concentration of the rooting solution in the step (4) is 100-200 ppm, and the rooting solution comprises the following components in parts by weight: 3-8 parts of ABT rooting powder, 10-15 parts of indolebutyric acid and vitamin B21-2 parts of glucose, 2-5 parts of ginkgo leaf, 2-5 parts of radix sophorae flavescentis and 8-12 parts of pseudo-ginseng stem leaf.
Further, the rooting solution is prepared by the following method:
a. weighing ginkgo leaf, sophora flavescens and panax notoginseng stem and leaf according to the formula, respectively, drying in the sun, mixing, crushing to 50-100 meshes, and completely dissolving with sterile water;
b. respectively weighing vitamin B according to the formula2Glucose, then dissolving it with sterile water;
c. completely dissolving ABT rooting powder and indolebutyric acid by using alcohol with the volume fraction of 90%;
d. and c, uniformly mixing the solutions obtained in the step a, the step b and the step c, and finally adding sterile water to adjust the concentration of the mixture to be 100-200 ppm.
The invention has the beneficial effects that:
1. according to the invention, by arranging the elliptical planting hole, the water retention capacity of the planting hole can be effectively improved under the cooperation of the water retention agent, so that the problem of water resource shortage in arid and rainless areas can be solved; meanwhile, the elliptical planting holes have a certain protection effect in the early growth stage of the sea buckthorn, and erosion of the sand blown by the wind to the sea buckthorn saplings is reduced.
2. By means of soaking the rooting solution and filling the nutrient medium, the rooting speed of the sea-buckthorn seedlings can be increased, and nutrition is provided for early growth and development of the sea-buckthorn seedlings; meanwhile, under the coordination of the organic fertilizer, the rooting speed of the sea-buckthorn seedlings in the soil can be increased, and the survival rate and the vegetation recovery rate of the sea-buckthorn seedlings can be improved.
3. The ginkgo leaves and the lightyellow sophora roots in the rooting liquid have the effects of sterilizing and inhibiting the growth of harmful pathogenic bacteria, and can be matched with a disinfectant to effectively avoid the infection of the sea-buckthorn by the pathogenic bacteria in the growth process and improve the survival rate of the sea-buckthorn.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Example 1
A method for restoring vegetation in arid and rainless areas comprises the following steps:
(1) trimming the planting land to be repaired according to a conventional method;
(2) digging a planting hole on the ground surface of the planting field, and thoroughly watering the planting hole with water; the distance between planting holes is 50cm, the depth of the planting holes is 25cm, and the aperture of the hole opening is 8 cm;
(3) filling a nutrient substrate with the pH value of 5.4 into the planting holes, wherein the adding amount of the nutrient substrate is 1/2 of the depth of the planting holes, and sterilizing the nutrient substrate for 48 hours by adopting thiophanate methyl with the effective component content of 50 percent before filling; the nutrient medium comprises humus, vermiculite, organic fertilizer and water-retaining agent; wherein the weight ratio of the humus to the vermiculite to the organic fertilizer to the water-retaining agent is 2:2:3.5: 1.5;
the water-retaining agent comprises acrylic acid, acrylamide, starch, dextrin and N, N' -methylene bisacrylamide; wherein the weight ratio of the acrylic acid to the acrylamide to the starch to the dextrin to the N, N' -methylenebisacrylamide is 15:2:3.5:1.4: 0.3.
(4) Soaking the transplanted sea-buckthorn in rooting liquid with the concentration of 180ppm for 12 hours, then burying gravel soil with the thickness of 5cm at the upper end of the nutrient medium, transplanting the sea-buckthorn into the gravel soil, enabling the roots of the sea-buckthorn to contact with the nutrient medium, then taking soil on site, and filling and leveling planting holes;
the rooting solution comprises the following components in parts by weight: 3 parts of ABT rooting powder, 10 parts of indolebutyric acid and vitamin B21 part, 2 parts of glucose, 1 part of ginkgo leaf, 2 parts of kuh-seng and 8 parts of notoginseng stem and leaf; the preparation method comprises the following steps:
a. weighing ginkgo leaf, sophora flavescens and panax notoginseng stem and leaf according to the formula, respectively, drying in the sun, mixing, crushing to 100 meshes, and completely dissolving with sterile water;
b. respectively weighing vitamin B according to the formula2Glucose, then dissolving it with sterile water;
c. completely dissolving ABT rooting powder and indolebutyric acid by using alcohol with the volume fraction of 90%;
d. and c, uniformly mixing the solutions obtained in the step a, the step b and the step c, and finally adding sterile water to adjust the concentration of the mixture to be 180 ppm.
(5) And mixing the rooting solution and the disinfectant in a volume ratio of 1:1, irrigating the planting holes until the planting holes are thoroughly wetted, and covering mulching films on the planting holes to enable the sea-buckthorn to naturally grow, so that the vegetation restoration can be completed.
Example 2
A method for restoring vegetation in arid and rainless areas comprises the following steps:
(1) trimming the planting land to be repaired according to a conventional method;
(2) digging a planting hole on the ground surface of the planting field, and thoroughly watering the planting hole with water; the distance between planting holes is 50cm, the depth of the planting holes is 25cm, and the aperture of the hole opening is 8 cm;
(3) filling a nutrient substrate with the pH value of 5.4 into the planting holes, wherein the adding amount of the nutrient substrate is 3/5 of the depth of the planting holes, and sterilizing the nutrient substrate for 40h by adopting thiophanate methyl with the effective component content of 50 percent before filling; the nutrient medium comprises humus, vermiculite, organic fertilizer and water-retaining agent; wherein the weight ratio of the humus to the vermiculite to the organic fertilizer to the water-retaining agent is 2:1:3: 0.5;
the water-retaining agent comprises acrylic acid, acrylamide, starch, dextrin and N, N '-methylene bisacrylamide, wherein the weight ratio of the acrylic acid to the acrylamide to the starch to the dextrin to the N, N' -methylene bisacrylamide is 15:2:3.5:1.4: 0.3.
(4) Soaking the transplanted sea-buckthorn seedlings in a rooting solution with the concentration of 200ppm for 10 hours, then burying gravel soil with the thickness of 5cm at the upper end of a nutrient substrate, transplanting the sea-buckthorn seedlings into the gravel soil, enabling the roots of the sea-buckthorn seedlings to contact with the nutrient substrate, then taking soil on site, and filling and leveling planting holes;
the rooting solution comprises the following components in parts by weight: 8 parts of ABT rooting powder, 15 parts of indolebutyric acid and vitamin B22 parts of glucose, 5 parts of ginkgo leaf, 5 parts of kuh-seng and 12 parts of notoginseng stem and leaf; the preparation method comprises the following steps:
a. weighing ginkgo leaf, sophora flavescens and panax notoginseng stem and leaf according to the formula, respectively, drying in the sun, mixing, crushing to 50 meshes, and completely dissolving with sterile water;
b. respectively weighing vitamin B according to the formula2Glucose, then dissolving it with sterile water;
c. completely dissolving ABT rooting powder and indolebutyric acid by using alcohol with the volume fraction of 90%;
d. and c, uniformly mixing the solutions obtained in the step a, the step b and the step c, and finally adding sterile water to adjust the concentration of the mixture to be 200 ppm.
(5) And mixing the rooting solution and the disinfectant in a volume ratio of 1:1, irrigating the planting holes until the planting holes are thoroughly wetted, and covering mulching films on the planting holes to enable the sea-buckthorn to naturally grow, so that the vegetation restoration can be completed.
Example 3
A method for restoring vegetation in arid and rainless areas comprises the following steps:
(1) trimming the planting land to be repaired according to a conventional method;
(2) digging a planting hole on the ground surface of the planting field, and thoroughly watering the planting hole with water; the distance between planting holes is 50cm, the depth of the planting holes is 25cm, and the aperture of the hole opening is 8 cm;
(3) filling a nutrient substrate with the pH value of 5.4 into the planting holes, wherein the adding amount of the nutrient substrate is 1/2 of the depth of the planting holes, and sterilizing the nutrient substrate for 45 hours by adopting thiophanate methyl with the effective component content of 50 percent before filling; the nutrient medium comprises humus, vermiculite, organic fertilizer and water-retaining agent; wherein the weight ratio of the humus to the vermiculite to the organic fertilizer to the water-retaining agent is 4:1:5: 1;
the water-retaining agent comprises acrylic acid, acrylamide, starch, dextrin and N, N' -methylene bisacrylamide; wherein the weight ratio of the acrylic acid to the acrylamide to the starch to the dextrin to the N, N' -methylenebisacrylamide is 15:2:3.5:1.4: 0.3.
(4) Soaking the transplanted sea-buckthorn seedlings in a rooting solution with the concentration of 100ppm for 12 hours, then burying gravel soil with the thickness of 5cm at the upper end of a nutrient substrate, transplanting the sea-buckthorn seedlings into the gravel soil, enabling the roots of the sea-buckthorn seedlings to contact with the nutrient substrate, then taking soil on site, and filling and leveling planting holes;
the rooting solution comprises the following components in parts by weight: 5 parts of ABT rooting powder, 12 parts of indolebutyric acid and vitamin B21 part, 3.5 parts of glucose, 2.5 parts of ginkgo leaves, 4 parts of sophora flavescens and 10 parts of pseudo-ginseng stem leaves; the preparation method comprises the following steps:
a. weighing ginkgo leaf, sophora flavescens and panax notoginseng stem and leaf according to the formula, respectively, drying in the sun, mixing, crushing to 50-100 meshes, and completely dissolving with sterile water;
b. respectively weighing vitamin B according to the formula2Glucose, then dissolving it with sterile water;
c. completely dissolving ABT rooting powder and indolebutyric acid by using alcohol with the volume fraction of 90%;
d. and c, uniformly mixing the solutions obtained in the step a, the step b and the step c, and finally adding sterile water to adjust the concentration of the mixture to be 100 ppm.
(5) And mixing the rooting solution and the disinfectant in a volume ratio of 1:1, irrigating the planting holes until the planting holes are thoroughly wetted, and covering mulching films on the planting holes to enable the sea-buckthorn to naturally grow, so that the vegetation restoration can be completed.
Comparative example 1
Compared with the example 1, the process of the step (3) of lacking the water-retaining agent and the step (4) of lacking the process of soaking the rooting solution is the same as the example 1.
Comparative example 2
In the process of cultivating sea buckthorn seedlings, soil preparation, planting, watering and pest and disease damage management are carried out by adopting a conventional method.
Detection of
Selecting 150 healthy sea-buckthorn seedlings, dividing the sea-buckthorn seedlings into 3 groups, respectively adopting the methods of example 1, comparative example 1 and comparative example 2 to cultivate the sea-buckthorn seedlings, and detecting the survival rate of the sea-buckthorn seedlings after the sea-buckthorn seedlings grow vigorously; through detection, the survival rate of the sea buckthorn seedlings cultured by the method in the example 1 is 97%, the survival rate of the sea buckthorn seedlings cultured in the comparative example 1 is 72%, and the survival rate of the sea buckthorn seedlings cultured in the comparative example 2 is only 48%, and the survival rate of the sea buckthorn seedlings in the example 1 is higher than that in the comparative examples 1 and 2; therefore, the survival rate of sea-buckthorn seedlings can be improved and the vegetation restoration efficiency can be improved only by matching the water retention agent, the rooting solution and the method in the embodiment 1.

Claims (6)

1. A method for restoring vegetation in arid and rainless areas is characterized by comprising the following steps:
(1) trimming the planting land to be repaired according to a conventional method;
(2) digging a planting hole on the ground surface of the planting field, and thoroughly watering the planting hole with water; the distance between planting holes is 40-50 cm, the planting depth is 20-30 cm, and the hole opening aperture is 5-10 cm;
(3) filling a nutrient medium with the pH value of 5-6 into the planting holes, wherein the addition amount of the nutrient medium is 1/2-2/3 of the depth of the planting holes, and adopting a disinfectant to disinfect the nutrient medium for 40-48 h before filling; the nutrient medium comprises humus, vermiculite, organic fertilizer and a water-retaining agent, wherein the weight ratio of the humus to the vermiculite to the organic fertilizer to the water-retaining agent is 2-4: 1-2: 3-5: 0.5-2; the water-retaining agent comprises acrylic acid, acrylamide, starch, dextrin and N, N '-methylene bisacrylamide, wherein the weight ratio of the acrylic acid to the acrylamide to the starch to the dextrin to the N, N' -methylene bisacrylamide is 15:2:3.5:1.4: 0.3;
(4) soaking the transplanted sea-buckthorn seedlings in a rooting solution for 10-15 hours, then burying gravel soil with the thickness of 3-5 cm at the upper end of a nutrient medium, transplanting the sea-buckthorn into the gravel soil, enabling the roots of the sea-buckthorn to contact the nutrient medium, then taking soil on site, and filling and leveling planting holes;
(5) and mixing the rooting solution and the disinfectant in a volume ratio of 1:1, irrigating the mixture into the planting holes until the mixture is thoroughly wetted, and covering mulching films on the planting holes to enable the sea-buckthorn to naturally grow, so that the vegetation restoration can be completed.
2. The method for restoring vegetation in arid-rainless regions according to claim 1, wherein the weight ratio of the humus, the vermiculite, the organic fertilizer and the water-retaining agent in step (3) is 2:2:3.5: 1.5.
3. The method for restoring vegetation in arid-rainless regions according to claim 1 or 2, wherein the organic fertilizer in step (3) is a compound fertilizer with a ratio of N, Ca, K and P of 0.5:1.5:0.8: 0.6.
4. The method for restoring vegetation in arid-rainless regions according to claim 1, wherein the disinfectant in step (3) is thiophanate methyl having an active ingredient content of 50%.
5. The method for restoring vegetation in arid-raining areas according to claim 1, wherein the concentration of the rooting solution in step (4) is 100-200 ppm, and the rooting solution comprises the following components in parts by weight:
3-8 parts of ABT rooting powder, 10-15 parts of indolebutyric acid and vitamin B21-2 parts of glucose, 2-5 parts of ginkgo leaf, 2-5 parts of radix sophorae flavescentis and 8-12 parts of pseudo-ginseng stem leaf.
6. The method for restoring vegetation in arid-rainless regions according to claim 5, wherein the method for preparing the rooting solution comprises:
a. weighing ginkgo leaf, sophora flavescens and panax notoginseng stem and leaf according to the formula, respectively, drying in the sun, mixing, crushing to 50-100 meshes, and completely dissolving with sterile water;
b. respectively weighing vitamin B according to the formula2Glucose, then dissolving it with sterile water;
c. completely dissolving ABT rooting powder and indolebutyric acid by using alcohol with the volume fraction of 90%;
d. and c, uniformly mixing the solutions obtained in the step a, the step b and the step c, and finally adding sterile water to adjust the concentration of the mixture to be 100-200 ppm.
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