Eucalyptus, evodia lepta and lophatherum gracile three-dimensional interplanting green cultivation

Abstract

The invention discloses a three-dimensional interplanting green cultivation method for eucalyptus, evodia lepta and lophatherum gracile, which comprises the following steps: simultaneously planting the eucalyptus and the evodia lepta in January to April of the first year, planting the lophatherum gracile between the eucalyptus and the evodia lepta in January to March of the second year, and utilizing different ecological niche requirements of the eucalyptus and the evodia lepta to achieve mutual matched planting. The lophatherum gracile can be harvested from the second year, the evodia lepta can be harvested from the third year, the eucalyptus and the evodia lepta can be harvested at the same time from the sixth year to the twelfth year, and from the eighteenth year, the eucalyptus, the lophatherum gracile and the evodia lepta are subjected to stumping and forest land renewal, and a cycle is completed. By the adoption of the method, the utilization rate of the eucalyptus forest land can be increased, the purpose of replacing stroking with ploughing in the early stage is achieved, the species diversity of the eucalyptus forest land can be increased, damage of a conventional eucalyptus planting mode to soil is changed through green planting, better ecological balance of the forest land is achieved, and meanwhile economic benefits of the forest land are improved.

Description

Technical Field

[0001] The invention relates to the technical field of forest intercropping, in particular to a green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psammophyton truncatum. Background Art

[0002] Melicope pteleifolia (champ. ex Benth.) TG Hartley, first mentioned in "A Guide to Mountain Herbs," is also known as "three-branched bitter," "three-branched tiger," "three-branched bitter," "three-branched spear," "chicken bone tree," and "small yellow powder." It belongs to the genus Evodia in the Rutaceae family. Melicope pteleifolia is cold in nature and bitter in taste. It enters the liver, lung, and stomach meridians, and has the effects of clearing heat and detoxifying, promoting qi and relieving pain, and relieving dampness and itching. It is classified as a heat-clearing and dampness-relieving herb under the category of heat-clearing herbs. It is primarily used for sore throat, rheumatic bone pain, malaria and jaundice, eczema, dermatitis, traumatic injuries, and insect and snake bites. According to "Fujian Chinese Herbal Medicine," "Guangxi Chinese Herbal Medicine," and "Lingnan Herbal Records," decoction of Melicope pteleifolia leaves is used for the early stages of encephalitis, eczema, dermatitis, acute exacerbations of chronic bronchitis, exogenous shaqi (sha qi), hemorrhoids, Gelsemium elegans poisoning, and rat bites. According to the Handbook of Commonly Used Chinese Herbal Medicines and the Guangxi Annals of Traditional Chinese Medicine, fresh leaves of Tripterygium wilfordii can be crushed and applied externally for ear boils, insect and snake bites, carbuncle, bruises, sprains, and hemostasis. Tripterygium wilfordii is used as medicine in its root, stem, or leaves, and can be harvested year-round. The preparation method is: wash the roots, slice them, and sun-dry them for later use; dry the leaves in the shade for later use.

[0003] Lophatherum gracile Brongn., also known as broken bones, pheasant rice, and bewildering grass, is a perennial herbaceous plant in the Poaceae family, genus Lophatherum, with woody roots. Its culms are erect, sparsely clustered, and can reach up to 80 cm in height. Its leaflets are hard, lanceolate, and its inflorescence is paniculate. Its spikelets are linear-lanceolate with very short petioles. Its glume tips are blunt, and its caryopsis is oblong. It grows on hillsides, in woodlands, at forest edges, and in shaded areas along roadsides. Its leaves are cooling and antipyretic, and its small tuberous roots are used medicinally. Its roots are also used medicinally, with cooling, antipyretic, diuretic, and labor-inducing properties.

[0004] Eucalyptus spp. is a collective term for species of the Eucalyptus, Corymbidium, and Cyperus genera in the Myrtaceae family. Most are evergreen trees, with a wide variety of species. Eucalyptus is highly adaptable, boasting advantages such as rapid growth, well-shaped trunks, and a wide range of uses. Eucalyptus is used in industries such as pulp and paper, wood-based panels, and construction. It can also be used as a biomass energy source and produce forest byproducts such as eucalyptus oil and eucalyptol.

[0005] Eucalyptus trees are mostly planted in pure forest models. In order to increase eucalyptus production, afforestation measures such as using herbicides to control weeds and applying large amounts of chemical fertilizers are adopted. This has led to excessive agricultural residues in eucalyptus woodlands, soil degradation, ecological imbalance, and an increase in eucalyptus diseases and pests year by year. Summary of the Invention

[0006] The purpose of the present invention is to provide a green cultivation method for three species of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia in three dimensions, so as to improve the utilization rate of eucalyptus woodlands, achieve the purpose of replacing cultivation with tillage in the early stage, increase the species diversity of eucalyptus woodlands, change the damage to the soil caused by the conventional planting mode of eucalyptus through green planting, achieve better ecological balance of the woodlands, and improve the economic benefits of the woodlands.

[0007] To achieve the above objectives, the present invention adopts the following technical means:

[0008] The green cultivation method of the present invention for three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia is carried out according to the following steps:

[0009] (1) From January to April of the first year, eucalyptus and Tripterygium wilfordii were planted simultaneously on the forest land, with Tripterygium wilfordii interplanted in the middle position between the eucalyptus rows;

[0010] (2) From January to March of the second year, when the forest density reaches above 0.3, plant light bamboo leaves between eucalyptus and trifoliate holly; and harvest the first batch of light bamboo leaves before they bloom; from the second year onwards, adjust the forest density by pruning eucalyptus and trifoliate holly to make the forest density no higher than 0.9;

[0011] (3) In the third year, harvest Trichosanthes kirilowii and harvest one crop of Dalbergia truncatula in June and September of the same year;

[0012] (4) Harvest one crop of light bamboo leaves in June and September of the fourth to sixth years;

[0013] (5) In the sixth year, eucalyptus and Tripterygium wilfordii are harvested at the same time;

[0014] (6) Starting from the seventh year, the light bamboo leaves are harvested only once a year in June; in the ninth year, the three-forked bitter bitter is harvested; in the twelfth year, the eucalyptus and three-forked bitter bitter are harvested again at the same time. After the eighteenth year of planting, the eucalyptus, light bamboo leaves and three-forked bitter bitter are dug out and the forest is regenerated;

[0015] During the above cultivation process, fertilization and pest and disease control are required.

[0016] In step (1), the eucalyptus trees are planted at a row spacing of 2m×3m.

[0017] In step (1), the row spacing of the three-pronged bitter plant is 1m×3m.

[0018] In step (2), the light bamboo leaves are planted with a row spacing of 30 cm×40 cm.

[0019] In step (2), the operation method of adjusting the density of the forest by pruning the eucalyptus and the Chinese holly is as follows: the Chinese holly is pruned of low side branches, retaining the growth of a single main stem, and ensuring that the lowest side branch is more than 50 cm above the ground; at the same time, the branches under the eucalyptus forest are trimmed.

[0020] In step (3), the harvesting of the Trichosanthes kirilowii is carried out as follows: the Trichosanthes kirilowii is cut off at a height of more than 10 cm above the ground and all collected for medicinal use; the main stems after felling are retained, and 1-3 main trunks are retained for each main stem after removing the sprouts.

[0021] The method of fertilizing in the described cultivation process is as follows:

[0022] When planting eucalyptus, trifoliate bitter orange and light bamboo leaf, dig a hole for each eucalyptus, trifoliate bitter orange and light bamboo leaf and put farmyard manure or organic fertilizer in the hole as base fertilizer;

[0023] In the first three years after the planting of eucalyptus, the first two years after the planting of trifoliate holly, and the first two years after the trifoliate holly and eucalyptus trees are cut down and germinated, dig a circular or rectangular ditch 80 cm away from the stump of each trifoliate holly and eucalyptus tree in July every year, apply organic and inorganic compound fertilizers as topdressing, and cover with soil after applying the fertilizers; in the first five years of planting light bamboo, apply topdressing once in April and July every year.

[0024] The application amount of the base fertilizer is 1 kg per hole for eucalyptus and trifoliate bitter orange, and 0.5 kg per hole for light bamboo leaves.

[0025] The application amount of the topdressing is as follows: 0.6 kg of organic-inorganic compound fertilizer is applied to the crown of each Tripterygium wilfordii and Eucalyptus tree; 0.5 kg of organic-inorganic compound fertilizer is applied to each light bamboo leaf tree each time.

[0026] The forest land meets the following conditions: south of 24.0° north latitude, altitude less than 500m, soil thickness more than 70cm; annual average temperature above 15℃, summer average temperature above 25℃, no low temperature below 0℃, annual precipitation more than 1500mm.

[0027] The forest land selected for this invention complies with the "Environmental Quality of Green Food Production Areas" (NYT 391-2021).

[0028] The method of the present invention has the following beneficial effects:

[0029] (1) The present invention fully considers the biological characteristics of Eucalyptus, Tripterygium wilfordii, and Tripterygium wilfordii, and utilizes their different ecological niche requirements to achieve mutually coordinated planting, thereby improving the utilization rate of eucalyptus woodlands, achieving the early goal of replacing cultivation with cultivation, increasing the species diversity of eucalyptus woodlands, and through green planting, changing the damage to the soil caused by the conventional planting model of eucalyptus, achieving a better ecological balance of the woodlands. This, in turn, improves the economic and ecological benefits of the entire woodland.

[0030] (2) The eucalyptus trees used in the present invention occupy the upper layer; the trifoliate bitterwood grows in the middle and lower layers under the eucalyptus canopy, taking advantage of the scattered light from the understory; and the pale bamboo leaves are well adapted to the weak light environment of the understory ground cover. The three form a vertical three-dimensional structure of "trees-(small trees) shrubs-herbs", maximizing the use of light resources at different heights and improving the photosynthetic efficiency and biomass yield per unit area.

[0031] (3) The light bamboo leaves in the present invention form a dense ground cover layer, which can effectively inhibit the growth of weeds under the forest, reducing the labor and chemical herbicide costs of weed control. The shrub layer of Trichosanthes kirilowii also further fills the space and inhibits weeds.

[0032] (4) Through the green cultivation method of three-dimensional interplanting of eucalyptus, Tripterygium wilfordii and light bamboo leaves, weeding can be done without using herbicides and green fertilizers can be applied reasonably. The produced Chinese medicinal materials can meet green standards and the ecological stability of the forest land can be guaranteed.

[0033] (5) By adopting the method of the present invention, eucalyptus and trifoliate ash can be harvested simultaneously in the sixth and twelfth years. In the eighteenth year, after the harvesting of eucalyptus, trifoliate ash and light bamboo leaves is completed, the baskets can be dug at the same time, and the forest land will be renewed and enter the next cycle. The intercropping model adopted by the present invention breaks the long-term limitation of single eucalyptus management and achieves a combination of long-term, medium-term and short-term economic benefits. In the short term, there is light bamboo leaf income, in the medium term, there is trifoliate ash income, and in the long term, there is eucalyptus income, which significantly improves land use efficiency and investment return rate and disperses market risks. It makes full use of land resources and can continuously generate economic value before the closure of the eucalyptus trees (young forest stage) and after the closure of the trees. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the positions of three-dimensional interplanting of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to the method of the present invention. . DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below with reference to the embodiments.

[0036] The green cultivation method of the present invention for three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia includes the following steps and requirements:

[0037] 1. Forestland Selection

[0038] Select forest land south of 24°N, with an altitude of less than 500m and a soil thickness of at least 70cm. The annual average temperature must be above 15°C, with an average summer temperature above 25°C, with no low temperatures below 0°C, and annual precipitation must be at least 1500mm. The forest land must meet the "Environmental Quality Standards for Green Food Production Areas" (NYT 391-2021).

[0039] 2. Requirements for the planting process

[0040] 1. Year 1

[0041] Eucalyptus and Tripterygium wilfordii are planted simultaneously on the forest floor, with eucalyptus plant spacing of 2m x 3m, and Tripterygium wilfordii interplanted between eucalyptus rows, with spacing of 1m x 3m. Eucalyptus and Tripterygium wilfordii are planted from January to April.

[0042] 2. Year 2

[0043] From January to March of the second year, when the forest density is above 0.3, dig holes 30 cm x 40 cm between eucalyptus and trifoliate eucalyptus trees and plant them. Harvest the first crop in July of the same year, before the leaves bloom. Cut the above-ground portion 2-4 cm above the ground. Dry them in the sun and tie them into small bundles. Keep them connected during the drying process to prevent them from becoming disjointed. Avoid leaving them outdoors at night to prevent them from yellowing.

[0044] like Figure 1 The diagram shows the positions of three-dimensional interplanting of eucalyptus, Tripterygium wilfordii and Paeonia lactiflora. A row of Tripterygium wilfordii is planted in the middle between two rows of eucalyptus trees, and two rows of Paeonia lactiflora are planted between the eucalyptus trees and Tripterygium wilfordii.

[0045] Starting from the second year of planting, the following care is required for the trifoliate eucalyptus and eucalyptus trees: remove the low side branches of the trifoliate eucalyptus, retain the growth of a single main stem, and ensure that the lowest side branch is more than 50 cm above the ground; at the same time, trim the branches under the eucalyptus forest.

[0046] 3. Year 3

[0047] The methods for the first harvest and post-harvest management of Tripterygium wilfordii are as follows: harvest in the third year after planting, use an electric saw to cut off the Tripterygium wilfordii about 10 cm above the ground, and collect all of it for medicinal purposes; retain the main stems after felling so that new buds can sprout next year, and retain 1-3 main trunks on each main stem after removing the sprouts.

[0048] Light bamboo leaves are harvested in June and September respectively.

[0049] 4. Year 4

[0050] Light bamboo leaves are harvested in June and September respectively.

[0051] 5. Years 5-6

[0052] The leaves of the light bamboo are harvested in June and September each year respectively. In the sixth year, the eucalyptus and the three-forked bitter are harvested at the same time.

[0053] 6. Years 7-18

[0054] Starting in the seventh year, the yield of the later bamboo leaves gradually decreases, with harvests occurring only once a year in June. In the ninth year after planting, the third harvest of the three-forked bitterwood occurs. From the 12th year onwards, both eucalyptus and three-forked bitterwood are harvested simultaneously. In the 18th year, the eucalyptus and three-forked bitterwood are dug up and the forest is regenerated.

[0055] 3. Requirements for forest canopy density

[0056] According to the present invention, starting from the second year of planting, the forest density of eucalyptus and Tripterygium wilfordii can be adjusted by pruning, so that the forest density shall not be higher than 0.9.

[0057] 4. Fertilization requirements

[0058] When planting eucalyptus, eucalyptus, and eucalyptus, dig a hole for each eucalyptus and eucalyptus plant and add 1kg of farmyard manure or organic fertilizer as a base fertilizer, and add 0.5kg of eucalyptus. In July of each year, for the first three years after planting eucalyptus and the first two years after planting eucalyptus, dig a circular or rectangular trench 80cm from the base of each eucalyptus and eucalyptus plant, 30-40cm wide and deep. Apply 0.6kg of organic-inorganic compound fertilizer as a topdressing, and cover with soil after applying the fertilizer.

[0059] In the first two years after the felling of the Chinese holly and eucalyptus trees, dig a circular or rectangular ditch 80 cm away from the stump of each Chinese holly and eucalyptus tree in July every year. The width and depth of the ditch should be 30-40 cm. Apply 0.6 kg of organic-inorganic compound fertilizer as top dressing and cover with soil after applying the fertilizer.

[0060] Topdressing should be applied to bamboo shoots once a year in April and July, with 0.5 kg per plant each time. All fertilizers must comply with the "Green Food Fertilizer Use Guidelines" (NYT 394-2021).

[0061] V. Requirements for pest and disease control

[0062] During pest and disease control, we adhere to the plant protection principle of "prevention first, integrated management," conduct timely forecasts of pest and disease conditions, prioritize agricultural, physical, and biological control measures, and implement appropriate chemical control measures to reduce pest and disease outbreaks to a manageable level and ensure the quality of medicinal materials. All pesticides must meet the requirements of the "Guidelines for the Use of Green Food Pesticides" (NYT393-2020).

[0063] Application Examples

[0064] 1. Forestland Selection

[0065] The forest land was selected at a felling base in Xixiangtang District, Nanning City. The slope of the forest land is about 19 degrees, which meets the requirements of being south of 24.0° north latitude, less than 500m above sea level, with an average annual temperature above 15°C, an average summer temperature above 25°C, no low temperature below 0°C, and an annual precipitation of more than 1500mm. At the same time, the forest land also meets the requirements of "Environmental Quality of Green Food Origin" (NYT 391-2021).

[0066] 2. Planting process

[0067] 1. Year 1

[0068] Eucalyptus and Tripterygium wilfordii were planted simultaneously in January of the first year, with a planting spacing of 2m×3m for eucalyptus and a planting density of 110 plants / mu; Tripterygium wilfordii was interplanted between eucalyptus rows, with a planting spacing of 1m×3m and a planting density of 220 plants / mu.

[0069] Eucalyptus seedlings are one-year tissue culture container seedlings, with a height of 30-40 cm, a ground diameter ≥ 0.3 cm, full terminal buds and a high degree of lignification of the main trunk, and are strong seedlings without diseases and insect pests; Trident seedlings are all one-year seedlings, with a height of 20-40 cm, a semi-lignified main trunk, and full terminal buds.

[0070] 2. Year 2

[0071] In March of the second year, one year after the planting of eucalyptus and Chinese holly, the forest density reached 0.4. Between the eucalyptus and Chinese holly, holes were dug with a spacing of 30cm×40cm and light bamboo leaves were planted. The planting density was about 3,600 plants per mu.

[0072] The effect after planting is as follows Figure 1 As shown, the size of each small grid in the figure is 10cm*10cm.

[0073] The first crop is harvested in July of the same year before the light bamboo leaves bloom. When harvesting, the above-ground part is cut 2-4 cm above the ground. The fresh weight of a single plant is about 60 grams, and about 200 kg of fresh branches and leaves can be harvested per mu. They are dried in the sun and tied into small bundles. The leaves should not be interrupted during drying to avoid disconnection. They should not be piled in the open air at night to avoid yellowing of the leaves.

[0074] The management method for Tripterygium wilfordii and Eucalyptus is: in June, cut off the low side branches of Tripterygium wilfordii, retain the growth of a single main stem, and ensure that the lowest side branch is more than 50 cm above the ground; appropriately trim the branches under the eucalyptus forest.

[0075] 3. Year 3

[0076] The first harvest and post-harvest care procedures for Tripterygium wilfordii are as follows: Harvest in the third year after planting. Use an electric saw to cut the Tripterygium wilfordii about 10 cm above the ground and collect all of it for medicinal purposes. Approximately 1,300 kg of fresh branches and leaves can be harvested per mu. After the first harvest, retain the main stems to allow for new buds to sprout the following year. After removing the sprouts, retain one to three main stems from each main stem. Light bamboo leaves are harvested in June and September, with each harvest yielding up to 170 grams of fresh weight per plant.

[0077] 4. Year 4

[0078] Light bamboo leaves are harvested in June and September respectively, and the fresh weight of a single plant in each harvest can reach 140 grams.

[0079] 5. Years 5-6

[0080] The light bamboo leaves are harvested once a year in June and September. In the sixth year, the three varieties of eucalyptus, three-forked bitter and light bamboo leaves are harvested at the same time.

[0081] 6. Years 7-18

[0082] Starting in the seventh year, the leaves of the light bamboo are harvested only once a year, in June. In the ninth year, the three-tongue bitterling is harvested for the third time. In the 12th year, both eucalyptus and three-tongue bitterling are harvested simultaneously. In the 18th year, the eucalyptus and three-tongue bitterling are dug up to regenerate the forest.

[0083] 3. Requirements for forest canopy density

[0084] Starting from the second year of planting, the forest density of eucalyptus and Chinese holly can be adjusted by pruning so that the forest density does not exceed 0.9.

[0085] 4. Fertilization requirements

[0086] When planting eucalyptus, eucalyptus, and eucalyptus, dig a hole for each eucalyptus and eucalyptus plant and add 1kg of farmyard manure or organic fertilizer as a base fertilizer. Add 0.5kg of eucalyptus. For the first three years of newly planted eucalyptus, the first two years of newly planted eucalyptus, and the first two years of germination after felling, dig a circular or rectangular trench 80cm from the base of each eucalyptus and eucalyptus plant in July. The trench should be 30-40cm wide and deep. Apply 0.6kg of Oolong Pearl organic-inorganic compound fertilizer as a topdressing and cover with soil. For the first five years after planting eucalyptus, apply 0.5kg of Oolong Pearl organic-inorganic compound fertilizer once in April and July each year. All fertilizers must comply with the "Guidelines for the Use of Green Food Fertilizers" (NYT 394-2021).

[0087] V. Requirements for pest and disease control

[0088] During pest and disease control, we adhere to the plant protection principle of "prevention first, integrated management," conduct timely forecasts of pest and disease conditions, prioritize agricultural, physical, and biological control measures, and implement appropriate chemical control measures to reduce pest and disease outbreaks to a manageable level and ensure the quality of medicinal materials. All pesticides must meet the requirements of the "Guidelines for the Use of Green Food Pesticides" (NYT393-2020).

Claims

1. A green cultivation method for three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia, characterized in that: Follow these steps: (1) From January to April of the first year, eucalyptus and Tripterygium wilfordii were planted simultaneously on the forest land, with Tripterygium wilfordii interplanted in the middle position between the eucalyptus rows; (2) From January to March of the second year, when the forest density reaches above 0.3, plant light bamboo leaves between eucalyptus trees and trifoliate bitter oranges; The first crop is harvested before the light bamboo leaves bloom; starting from the second year, the density of the eucalyptus and trifoliate eucalyptus trees is adjusted by pruning so that the density is no higher than 0.9; (3) In the third year, harvest Trichosanthes kirilowii and harvest one crop of Dalbergia truncatula in June and September of the same year; (4) Harvest one crop of light bamboo leaves in June and September of the fourth to sixth year; (5) In the sixth year, eucalyptus and Tripterygium wilfordii are harvested at the same time; (6) Starting from the seventh year, the light bamboo leaves are harvested only once a year in June; in the ninth year, the three-forked bitter bitter is harvested; in the twelfth year, the eucalyptus and three-forked bitter bitter are harvested again at the same time. After the eighteenth year of planting, the eucalyptus, light bamboo leaves and three-forked bitter bitter are dug out and the forest is regenerated; During the above cultivation process, fertilization and pest and disease control are required.

2. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 1, characterized in that: In step (1), the eucalyptus trees are planted at a row spacing of 2m×3m.

3. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 1, characterized in that: In step (1), the row spacing of the three-pronged bitter plant is 1m×3m.

4. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 1, characterized in that: In step (2), the light bamboo leaves are planted with a row spacing of 30 cm×40 cm.

5. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 1, characterized in that: In step (2), the operation method of adjusting the density of the forest by pruning the eucalyptus and the Chinese holly is as follows: the Chinese holly is pruned of low side branches, retaining the growth of a single main stem, and ensuring that the lowest side branch is more than 50 cm above the ground; at the same time, the branches under the eucalyptus forest are trimmed.

6. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 1, characterized in that: In step (3), the harvesting of the Trichosanthes kirilowii is carried out as follows: the Trichosanthes kirilowii is cut off at a height of more than 10 cm above the ground and all collected for medicinal use; the main stems after felling are retained, and 1-3 main trunks are retained for each main stem after removing the sprouts.

7. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 1, characterized in that: The methods of fertilizing during the cultivation process are as follows: When planting eucalyptus, trifoliate bitter orange and light bamboo leaf, dig a hole for each eucalyptus, trifoliate bitter orange and light bamboo leaf and put farmyard manure or organic fertilizer in the hole as base fertilizer; In the first three years after the planting of eucalyptus, the first two years after the planting of trifoliate holly, and the first two years after the trifoliate holly and eucalyptus trees are cut down and germinated, dig a circular or rectangular ditch 80 cm away from the stump of each trifoliate holly and eucalyptus tree in July every year, apply organic and inorganic compound fertilizers as topdressing, and cover with soil after applying the fertilizers; in the first five years of planting light bamboo, apply topdressing once in April and July every year.

8. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 7, characterized in that: The application amount of the base fertilizer is 1 kg per hole for eucalyptus and trifoliate bitter orange, and 0.5 kg per hole for light bamboo leaves.

9. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 7, characterized in that: The application amount of the topdressing is as follows: 0.6 kg of organic-inorganic compound fertilizer is applied to the crown of each Tripterygium wilfordii and Eucalyptus tree; 0.5 kg of organic-inorganic compound fertilizer is applied to each light bamboo leaf tree each time.

10. The green cultivation method of three-dimensional intercropping of eucalyptus, Tripterygium wilfordii and Psoralea corylifolia according to claim 1, characterized in that: The forest land meets the following conditions: south of 24.0° north latitude, altitude less than 500m, soil thickness more than 70cm; annual average temperature above 15℃, summer average temperature above 25℃, no low temperature below 0℃, annual precipitation more than 1500mm.

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