Management control method for vegetation in newly-planted land

Abstract

The invention relates to a management control method for vegetation in a newly-planted land, and relates to the technical field of accurate improvement of stand quality and large-diameter timber cultivation of target trees of precious tree species, and the method comprises the following steps: (1) block-shaped grass shoveling and tending: for the newly-planted land, weeds and miscellaneous irrigation are shoveled in a block-shaped manner by taking nursery stocks as centers, and pit surfaces are cleaned; (2) expanding reclamation, loosening soil and tending: turning the soil on the pit surface into blocks to cut off capillary connection between the upper and lower soil layers; and (3) comprehensive brush cutting, weeding and tending: after the reclamation expanding, soil loosening and tending are completed, setting an interval, and carrying out brush cutting and weeding on weeds and miscellaneous bushes around the pit surface after the interval. According to the method, the forest cost can be remarkably reduced, and the operating cost is reduced by more than three times compared with traditional full-shovel tending. Meanwhile, damage to the forest land is reduced, water and soil loss is effectively controlled, long-term maintenance and improvement of the productivity of the forest land are achieved, and good ecological benefits are achieved.

Description

Technical Field

[0001] The present invention relates to the field of accurate improvement of forest stand quality and cultivation technology of large-diameter timber of target trees of precious tree species, and in particular to a management and control method for vegetation in newly planted forest land. Background Art

[0002] The management and control of vegetation in newly planted land is one of the key factors for the success or failure of afforestation. Its purpose is to artificially eliminate the interference of unfavorable factors, create a superior growth environment, meet the needs of young trees for water, fertilizer, air, heat and light, improve the survival rate and preservation rate of afforestation, promote the growth of young trees and accelerate the closure of young forests. The water and heat conditions in southern my country are excellent, and the vegetation in newly planted land grows vigorously, with the ability to quickly occupy nutrient space, seize and consume a large amount of water, nutrients and light. If the tending is not timely, it is easy to suppress the seedlings, causing the death of seedlings or the reduction of growth. For this reason, how to manage and control vegetation with high efficiency and low cost, promote the growth of young trees and accelerate the closure of young forests, and reduce operating costs at the same time has become an urgent practical need. In view of this, the present invention provides a method for managing and controlling vegetation in newly planted land. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for managing and controlling vegetation in newly planted land, with the aim of efficiently and low-costly managing and controlling vegetation, promoting the growth of young trees and accelerating the closure of young forests, while reducing operating costs.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A method for managing and controlling vegetation in newly planted forest land comprises the following steps:

[0006] (1) Block weeding and tending: For newly planted forests, weeds and shrubs are removed in blocks with seedlings as the center to clear the pit surface;

[0007] (2) Expanding and loosening the soil for cultivation: turning the soil on the pit surface into blocks to cut off the capillary connection between the upper and lower soil layers;

[0008] (3) Comprehensive weeding and tending: After the expansion and soil loosening and tending are completed, an interval period is set, after which the weeds and shrubs around the pit surface are cut and weeded.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the size of the block in step (1) is 0.5-2 m×0.5-2 m.

[0011] Furthermore, the size of the block in step (1) is 1m×1m.

[0012] Furthermore, the specific steps of removing weeds and shrubs in step (1) are: digging the used shovel into the soil 3 cm to 5 cm to cut off the roots of the weeds.

[0013] Furthermore, in step (2), the depth of turning the soil on the pit surface into blocks is 10 cm to 15 cm.

[0014] Furthermore, the interval period in step (3) is 15 to 20 days.

[0015] Furthermore, in step (3), weeds and shrubs around the pit surface are cut and weeded using a brush cutter.

[0016] Furthermore, when weeding the weeds and shrubs around the pit surface in step (3), the root height of the weeds and shrubs shall not exceed 5 cm, and the weeds and shrubs cut off cover the pit surface.

[0017] Furthermore, the newly afforested land is the forest land before afforestation and closure in the southern felled area.

[0018] Furthermore, the seedlings include at least one of Castanopsis hystrix and Fir.

[0019] In addition, due to the differences in terrain and growth conditions of young trees, selective precision tending can be adopted. For example, priority should be given to tending areas such as gullies and forest edges where weeds grow vigorously, and then comprehensive tending should be carried out after a period of time. We can adapt to local conditions, implement precise policies, improve efficiency and reduce costs.

[0020] The present invention mainly manages and controls the vegetation in the newly planted land from the following aspects:

[0021] (1) Free up space for seedling growth: timely control of the growth of weeds and shrubs by manual management to create a superior growth environment, meet the needs of young trees for water, fertilizer, air, heat and light, and improve the survival rate and preservation rate of afforestation.

[0022] (2) Promote the growth of young trees and accelerate the closure of young forests: Loosen the soil on the pit surface during weeding and irrigation to reduce physical evaporation of water, improve soil water retention, permeability and air permeability, accelerate the decomposition of organic matter, effectively control soil erosion, and help maintain forest fertility.

[0023] (3) Reduce forestry costs: By leveraging modern machinery and the time difference in vegetation growth, the effective period of tending can be extended, the number of tending times can be reduced, and the cost of management can be reduced.

[0024] The beneficial effects of the present invention are as follows: the present invention can significantly reduce the cost of forest management, and the operating cost is more than 3 times lower than that of traditional full-shovel tending. At the same time, it reduces the damage to the forest land, effectively controls soil erosion, realizes the long-term maintenance and improvement of forest productivity, and has good ecological benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a block-shaped grass-cutting and tending diagram for reforestation of felled sites according to the present invention; the left is a schematic diagram, and the right is a real picture;

[0026] Figure 2 This is a real picture of the reforestation of felled sites in the present invention; on the left is Castanopsis hystrix and on the right is Castanopsis chinensis.

[0027] Figure 3 This is the mechanical cutting, shrubbery and tending for reforestation in felled areas according to the present invention; the left is comprehensive cutting, shrubbery and tending, and the right is selective precision tending. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. If no specific technology or conditions are specified in the embodiments, the technology or conditions described in the literature in this field or the product instructions are used. If the manufacturer of the reagents or instruments used is not specified, they are all conventional products that can be purchased through regular channels.

[0029] Example

[0030] This embodiment utilizes modern forestry machinery, fully relies on natural forces, improves the vegetation management and control methods of newly afforested land, manually manages and controls weed growth in a timely manner, creates a superior growth environment, meets the needs of young trees for water, fertilizer, air, heat and light, improves the survival rate and preservation rate of afforestation, promotes the growth of young trees and accelerates the closure of young forests; extends the effective period of tending, reduces the number of tending times, and reduces cost management; effectively controls soil erosion, and is beneficial to the maintenance of forest land fertility.

[0031] This embodiment provides a method for managing and controlling vegetation in a newly planted forest, comprising the following steps:

[0032] (1) Block weeding and tending: For newly planted forests, weeds and shrubs are removed in blocks with seedlings as the center to clear the pit surface;

[0033] (2) Expanding and loosening the soil for cultivation: turning the soil on the pit surface into blocks to cut off the capillary connection between the upper and lower soil layers;

[0034] (3) Comprehensive weeding and tending: After the expansion and soil loosening and tending are completed, an interval period is set, after which the weeds and shrubs around the pit surface are cut and weeded.

[0035] Specifically, the steps include:

[0036] (1) Block weeding and tending: For newly planted forests, weeds and shrubs are removed in blocks (1m×1m) with the seedlings as the center. The shovel is inserted 3cm to 5cm into the soil to cut off the grass roots and clear the pit surface ( Figure 1 );

[0037] (2) Expansion and soil loosening and cultivation: Turn the soil on the pit surface into blocks with a depth of 10 cm to 15 cm, cut off the capillary connection between the upper and lower soil layers, reduce physical evaporation of water, improve soil water retention, water permeability and aeration, promote soil microbial activity, and accelerate the decomposition of organic matter ( Figure 2 );

[0038] (3) Brush cutter comprehensive weeding and tending: When the expansion and loosening of soil and tending are completed, there is an interval of about 15 to 20 days between loosening and brush cutting, which can appropriately extend the tending period. When the weeds outside the loosening range are about to cover the seedlings, mechanical brush cutting is carried out. The root height of weeds and shrubs should not exceed 5 cm. After weeding, the pit surface can be covered to suppress weeds and retain water. Figure 3 ).

[0039] In addition, due to the differences in terrain and growth conditions of young trees, selective precision tending can be adopted. For example, priority should be given to tending areas such as gullies and forest edges where weeds grow vigorously, and then comprehensive tending should be carried out after a period of time. We can adapt to local conditions, implement precise policies, improve efficiency and reduce costs.

[0040] Comparison Example

[0041] This control case adopts the traditional method of comprehensive weeding and tending, and mechanical cutting and shrubbery are used for tending. Since the weeds grow rapidly after cutting and shrubbery, they are tended many times. However, there is no expansion and loosening of soil and tending, which is easy to cause soil erosion in afforestation, reducing the forest stand preservation rate and growth.

[0042] The present invention aims at the above-mentioned existing problems, while improving work efficiency, reducing operating costs and increasing forest growth. The three-year observation data of the precious tree species, Euphorbia cerasifera, in pure artificial forest (afforestation density 2m×1m) show that compared with the traditional method, the operating cost is reduced by more than 3 times compared with the traditional full-shovel tending, and the tree height growth, breast diameter growth and per-acre accumulation are increased by 35.67%, 33.03% and 126.24% respectively.

[0043] In summary, the present invention discloses a highly efficient and low-cost vegetation management and control method for newly planted forests; the method makes full use of natural forces and modern forestry machinery, artificially eliminates the interference of unfavorable factors, creates a superior growth environment, meets the needs of seedlings and young trees for water, fertilizer, air, heat and light, improves the survival rate and preservation rate of afforestation, reduces operating costs, promotes the growth of young trees and accelerates the closure of young forests. At the same time, it reduces the human destruction of forest land, effectively controls soil and water loss, realizes the long-term maintenance and improvement of forest productivity, has good ecological benefits, realizes the sustainable management of artificial forests, and will have broad application prospects in my country's mountain forestry.

[0044] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for managing and controlling vegetation in newly planted land, characterized in that: The steps include: (1) Block weeding and tending: For newly planted forests, weeds and shrubs are removed in blocks with seedlings as the center to clear the pit surface; (2) Expanding and loosening the soil for cultivation: turning the soil on the pit surface into blocks to cut off the capillary connection between the upper and lower soil layers; (3) Comprehensive weeding and tending: After the expansion and soil loosening and tending are completed, an interval period is set, after which the weeds and shrubs around the pit surface are cut and weeded.

2. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: The size of the block in step (1) is 0.5-2m×0.5-2m.

3. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: The size of the block in step (1) is 1m×1m.

4. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: The specific steps of removing weeds and shrubs in step (1) are as follows: digging the used shovel into the soil 3 cm to 5 cm to cut off the roots of the weeds.

5. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: In step (2), the depth of turning the soil on the pit surface into blocks is 10 cm to 15 cm.

6. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: The interval period in step (3) is 15 to 20 days.

7. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: In step (3), weeds and shrubs around the pit surface are cut and weeded using a brush cutter.

8. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: When weeding the weeds and shrubs around the pit surface in step (3), the root height of the weeds and shrubs shall not exceed 5 cm, and the weeds and shrubs cut off cover the pit surface.

9. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: The newly afforestation land mentioned above refers to the forest land before afforestation and canopy closure in the southern felled areas.

10. A method for managing and controlling vegetation in newly planted land according to claim 1, characterized in that: The seedlings include at least one of Castanopsis hystrix and Fir.

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