Method for improving side slope plant carbon sink

Abstract

The invention provides a method for improving slope plant carbon sink. The method comprises the steps of (1) soil improvement, (2) plant planting area division, (3) intermediate cutting and (4) forest tending. According to the method, soil improvement is emphasized, the method comprises the steps of changing the soil structure in a sand-sticky mutual doping mode and applying organic fertilizer, mineral fertilizer and a soil conditioner, in the method, planting positions and numbers of arbors, shrubs and herbaceous plants are determined, and a multi-layer vegetation structure is constructed; through regular identification and removal of low-quality trees, timely complementary planting of artificial seedlings and strengthening of maintenance management of the seedlings, slope vegetation is ensured to keep healthy, and the carbon sequestration capability is improved.

Description

Technical Field

[0001] This invention belongs to the field of ecological restoration, specifically relating to a method for enhancing the carbon sequestration of vegetation on slopes. Background Technology

[0002] Currently, slope vegetation dominated by plantations suffers from problems such as species homogeneity and irrational forest structure. This results in weak slope ecosystem resistance to disturbance and low carbon sequestration efficiency in the later stages of plant growth. In addition, traditional planting and maintenance methods involve techniques such as soil improvement, forest thinning, and tending, but lack basic methods specifically for enhancing carbon sequestration by slope vegetation. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes a method for enhancing carbon sequestration in slope vegetation. By determining the planting locations and quantities of trees, shrubs, and herbs to form a multi-layered vegetation structure, and by regularly identifying and removing low-quality trees, promptly replanting artificial seedlings, and strengthening the maintenance and management of seedlings, the health of slope vegetation is maintained, thereby enhancing carbon sequestration capacity.

[0004] To achieve the above objectives, this invention proposes a method for enhancing carbon sequestration by vegetation on slopes, comprising the following steps:

[0005] (1) Soil improvement: Based on the soil properties of the slope soil, the soil structure is changed by mixing sand and clay, and organic fertilizers, mineral fertilizers and soil conditioners are applied.

[0006] (2) Planting area division: Based on the topography of the slope, soil conditions and the growth characteristics of plants, the planting areas of trees, shrubs and herbaceous plants are divided to form a multi-layered vegetation structure.

[0007] (3) Thinning: Prioritize the identification and felling of low-quality trees and shrubs such as dead standing trees, and then carry out thinning according to plant density and growth status;

[0008] (4) Forest tending: In the locations of thinned dead and low-quality trees and shrubs, timely replant artificial seedlings that grow rapidly, are highly adaptable, and have great carbon sequestration potential, and strengthen the maintenance and management of the replanted seedlings.

[0009] Preferably, the sand-clay blending method means that when the soil texture is clay, it can be improved by increasing the sand particles, and the sand particle ratio should be controlled between 15% and 30%; while when the soil texture is loose, the clay particle content can be increased, and the clay particle ratio should be controlled between 20% and 35%.

[0010] Preferably, organic fertilizers include livestock and poultry manure and fallen leaf compost.

[0011] Preferably, mineral fertilizers include inorganic mineral fertilizers such as phosphorus, potassium, calcium, and magnesium.

[0012] Preferably, when the soil is clayey, mineral fertilizers are added to increase its aeration.

[0013] Preferably, when the soil is acidic, the soil conditioner is lime; when the soil is alkaline, the soil conditioner is gypsum and sulfur.

[0014] Preferably, when the slope area is large, trees are planted in the center of the slope, shrubs are planted around the trees, and herbaceous plants are planted in the gaps between the trees and shrubs.

[0015] Preferably, when the slope area is small, trees should be planted as the main species, with herbaceous plants planted in the gaps between the trees.

[0016] Preferably, as many tree species as possible should be planted in the early stages. The trees selected should be highly adaptable and have a high carbon sequestration capacity, with a planting density of 0.25–1 tree / m². 2 Shrubs should be selected from species that are adaptable, fast-growing, have well-developed root systems, and high carbon sequestration capacity. The planting density of shrubs should be higher than that of trees, with a planting density of 2-4 plants / m². 2 Herbaceous plants should be perennial and planted at a density of 10–20 plants / m². 2 .

[0017] Ideally, for thinning of overly dense growth, trees should be preserved as much as possible, followed by shrubs and herbs.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0019] 1. This invention determines the planting location and quantity of trees, shrubs and herbs, forming a multi-layered vegetation structure.

[0020] 2. By regularly identifying and felling low-quality trees, promptly replanting artificial seedlings, and strengthening the maintenance and management of seedlings, we can ensure the continuous health and efficient carbon sequestration of slope vegetation.

[0021] 3. This invention also focuses on soil improvement, specifically including the appropriate addition of artificial soil, and the application of organic fertilizers, mineral fertilizers, soil conditioners, etc. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the planting of trees, shrubs, and herbs according to the present invention;

[0023] Figure 2 This is a schematic diagram illustrating the planting of trees and herbs according to the present invention. Detailed Implementation

[0024] A method to enhance carbon sequestration by vegetation on slopes, see [link to relevant documentation]. Figures 1 to 2 This includes the following steps:

[0025] (1) Soil improvement:

[0026] Choose a specific soil improvement plan based on the actual situation. A sand-clay mixture approach can be used, adding one or more of the following: organic fertilizers, mineral fertilizers, and soil conditioners. For example, in some arid regions, soil permeability and water retention may be poor. In this case, a sand-clay mixture can be used, mixing sand and clay in a certain proportion to improve soil structure. When the soil texture is clay, it can be improved by increasing sand content, but the sand proportion should be controlled between 15% and 30%. When the soil texture is loose, the clay content can be increased, but the clay proportion should be controlled between 20% and 35%. When the soil is clayey, adding mineral fertilizers can also increase its aeration. To provide the nutrients needed for plant growth, organic fertilizers such as livestock manure and leaf compost, as well as inorganic mineral fertilizers such as phosphorus, potassium, calcium, and magnesium, can be added to the soil. Depending on the soil's acidity or alkalinity, appropriate soil conditioners can be applied. When the soil is acidic, lime can be applied to increase the soil's pH value; when the soil is alkaline, gypsum and sulfur can be applied to decrease the soil's pH value.

[0027] (2) Planting area division:

[0028] Based on the slope's topography, soil conditions, and plant growth characteristics, planting areas for trees, shrubs, and herbaceous plants should be rationally divided to form a multi-layered vegetation structure. In the early stages, as many tree species as possible should be planted. Generally, trees are suitable for planting in areas with relatively stable slopes and good soil conditions, as they require more nutrients and space to grow. Shrubs can be planted around the trees to serve as a transition and connection. Herbaceous plants are mainly used to cover the slope surface and prevent soil erosion.

[0029] When the slope area is large, trees should be planted in the center, shrubs around the trees, and herbaceous plants in the gaps between the trees and shrubs. When the slope area is small, trees should be the main species planted, with herbaceous plants planted in the gaps between the trees.

[0030] When selecting plant species, we should prioritize those with strong adaptability and high carbon sequestration capacity, such as black locust. At the same time, a reasonable planting density should be determined based on the size of the planting area and the growth characteristics of the plants. For example, when selecting highly adaptable and high-carbon-sequestration tree species such as black locust, a planting density of 0.25–1 tree / m² is recommended. 2 Select shrub species such as Lespedeza, which are highly adaptable, fast-growing, have well-developed root systems, and high carbon sequestration capacity. The planting density of shrubs should be higher than that of trees, with a planting density of 2-4 plants / m². 2 Select perennial herbaceous plants such as alfalfa, with a planting density of 10-20 plants / m². 2 .

[0031] In areas with gentle slopes, plant as many tree species as possible to promote the formation of carbon sink effects.

[0032] (3) Thinning:

[0033] First, priority should be given to identifying and felling low-quality trees and shrubs, such as dead or standing trees, as they not only fail to effectively sequester carbon but may also negatively impact the growth of other plants. Then, thinning should be carried out appropriately based on plant density and growth status to avoid overcrowding and impaired light and ventilation. During thinning, trees should be preserved as much as possible, followed by shrubs and herbs, to maintain a multi-layered vegetation structure. Finally, the felled tree species should be pulverized and used for scientific research or spread on the soil surface as organic fertilizer.

[0034] (4) Forest tending:

[0035] In the areas where thinning has been carried out, it is necessary to promptly replant rapidly growing, adaptable, and high-carbon-sequestration-potential artificial seedlings to restore vegetation cover. Simultaneously, it is crucial to strengthen the maintenance and management of the replanted seedlings, including regular watering, fertilization, and pruning, to ensure their healthy growth. This step can further enhance the vegetation cover and carbon sequestration capacity of the slope.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for enhancing carbon sequestration by vegetation on slopes, characterized in that: Includes the following steps: (1) Soil improvement: Based on the soil properties of the slope soil, the soil structure is changed by mixing sand and clay, and organic fertilizers, mineral fertilizers and soil conditioners are applied. (2) Planting area division: Based on the topography of the slope, soil conditions and the growth characteristics of plants, the planting areas of trees, shrubs and herbaceous plants are divided to form a multi-layered vegetation structure. (3) Thinning: Prioritize the identification and felling of low-quality trees and shrubs such as dead standing trees, and then carry out thinning according to plant density and growth status; (4) Forest tending: In the locations of thinned dead and low-quality trees and shrubs, timely replant artificial seedlings that grow rapidly, are highly adaptable, and have great carbon sequestration potential, and strengthen the maintenance and management of the replanted seedlings.

2. The method for improving slope vegetation carbon sequestration according to claim 1, characterized in that: The method of sand-clay blending refers to increasing sand content when the soil texture is clay, with the sand content controlled between 15% and 30%; and increasing clay content when the soil texture is loose, with the clay content controlled between 20% and 35%.

3. The method for improving slope vegetation carbon sequestration according to claim 1, characterized in that: Organic fertilizers include livestock and poultry manure and fallen leaf compost.

4. The method for improving slope vegetation carbon sequestration according to claim 1, characterized in that: Mineral fertilizers are inorganic mineral fertilizers, including phosphorus, potassium, calcium, and magnesium.

5. The method for improving slope vegetation carbon sequestration according to claim 1, characterized in that: When the soil is clayey, add mineral fertilizers to increase its aeration.

6. The method for improving slope vegetation carbon sequestration according to claim 1, characterized in that: When the soil is acidic, the soil conditioner is lime; when the soil is alkaline, the soil conditioner is gypsum and sulfur.

7. The method for improving slope vegetation carbon sequestration according to claim 1, characterized in that: When the slope area is large, trees should be planted in the center of the slope, shrubs should be planted around the trees, and herbaceous plants should be planted in the gaps between the trees and shrubs.

8. The method for improving slope vegetation carbon sequestration according to claim 1, characterized in that: When the slope area is small, trees should be planted as the main species, with herbaceous plants planted in the gaps between the trees.

9. A method for improving slope vegetation carbon sequestration according to claim 6, characterized in that: In the early stages, as many tree species as possible should be planted. Tree species with strong adaptability and high carbon sequestration capacity should be selected, and the planting density should be 0.25 to 1 tree / m². 2 Shrubs should be selected from species that are adaptable, fast-growing, have well-developed root systems, and high carbon sequestration capacity. The planting density of shrubs should be higher than that of trees, with a planting density of 2-4 plants / m². 2 Herbaceous plants should be perennial and planted at a density of 10–20 plants / m². 2 .

10. A method for improving slope vegetation carbon sequestration according to claim 1, characterized in that: When thinning out overly dense growth, trees should be preserved as much as possible, followed by shrubs and herbs.

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