A method and system for carbon sequestration and ecological improvement of sandy land based on new carbon collection material

Abstract

The application discloses a sand land carbon fixation and ecological collaborative improvement method and system based on new carbon collection materials, relates to the field of soil improvement and ecological restoration, and specifically relates to a sand land carbon fixation and ecological collaborative improvement method and system based on new carbon collection materials. The method comprises the following steps: base construction, mixing new carbon collection material products A and B with sand in a dynamic ratio to form an artificial soil base layer with water and fertilizer retention capacity, and storing carbon in coal; system activation, activating indigenous microorganisms by applying bioactive agent product D, and combining with nutrient slow-release body product C to construct rhizosphere microecology; carbon sink monitoring and certification, monitoring soil organic carbon by means of the Internet of Things and certifying according to international standards; zero-carbon agricultural product production, using the system material as the main fertilizer to produce zero-carbon agricultural products. The new carbon collection material is prepared from low-rank coal as raw material through low-temperature catalytic conversion and the like, and contains more than 25 kinds of small-molecule organic acid complexes. The system contains preparation, application, monitoring and certification, and production modules, and realizes sand land carbon fixation and repair and zero-carbon production.

Description

Technical Field

[0001] This invention relates to the field of soil improvement and ecological restoration, specifically to a method and system for synergistic improvement of carbon sequestration and ecology in sandy areas based on new carbon-sequestering materials. Background Technology

[0002] Sandy lands, as a typical fragile ecosystem, are widely distributed in arid and semi-arid regions globally, including large areas in Northwest, North, and Northeast my country. Due to the loose sand grains, poor structural stability, and extremely low organic matter content, sandy lands generally suffer from weak water and fertilizer retention capacity, obstructed nutrient cycling, and barren microbial communities. This makes it difficult for natural vegetation to establish itself, resulting in low land productivity and severe soil erosion and wind damage. Traditional sandy land management relies heavily on engineering sand fixation (such as setting up straw checkerboards and clay slabs) and single-vegetation restoration methods. While these methods can mitigate wind erosion to some extent, they often have limitations such as long restoration cycles, high water consumption, poor ecosystem self-sustaining capacity, and limited contribution to soil carbon fixation, making it difficult to achieve the dual goals of ecological and climatic benefits.

[0003] In recent years, with the advancement of the "dual carbon" goals, soil carbon sinks, as one of the largest carbon pools in terrestrial ecosystems, have received widespread attention for their potential to increase carbon sequestration. Although the organic carbon storage in sandy soils is low, scientific improvement can significantly enhance the carbon sequestration rate while simultaneously improving soil structure and fertility. However, existing sandy soil carbon sequestration technologies mostly focus on returning exogenous organic materials (such as straw and manure) to the field or applying chemical amendments. These methods have significant shortcomings: First, exogenous organic matter decomposes quickly and has poor stability, easily releasing CO2 again due to mineralization, resulting in low carbon sequestration efficiency and difficulty in sustainability; second, chemical amendments may disrupt the ecological balance of soil microorganisms, and long-term use can easily lead to secondary salinization or soil compaction; third, traditional technologies have not formed a synergistic mechanism of "carbon sequestration-ecological restoration-resource utilization," making it difficult to balance ecological benefits and economic feasibility.

[0004] In terms of materials innovation, low-rank coal (such as lignite and weathered coal) is considered a potential carbon source for soil improvement due to its rich content of humic precursors and functional groups. However, direct application of these materials faces challenges such as slow carbon conversion, low utilization of effective components, and potential for localized hypoxia. Although some studies have attempted to activate low-rank coal through pyrolysis and oxidation, traditional processes often suffer from bottlenecks such as high energy consumption, secondary pollution (e.g., emissions of waste gas and wastewater), and insufficient raw material utilization (typically only 30%-50% conversion). Furthermore, the products have limited functionality and cannot simultaneously meet the multiple needs of sandy land, including water retention, biodiversity promotion, and microbial activation. In addition, existing sandy land improvement technologies generally lack closed-loop monitoring systems, making it difficult to quantify and verify carbon sequestration increments and connect to carbon trading markets, thus limiting the large-scale promotion and value transformation of these technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a method and system for the synergistic improvement of sandy land carbon sequestration and ecological restoration based on new carbon-sequestering materials. By converting low-rank coal into functional materials for carbon sequestration and soil improvement, and activating the synergistic growth of microorganisms and plants, the invention simultaneously achieves sandy land ecological restoration, carbon sequestration certification, and zero-carbon agricultural production, thus solving the problem of the difficulty in simultaneously addressing sandy land management and carbon sequestration and increased production.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method and system for synergistic improvement of sandy land carbon sequestration and ecology based on novel carbon-collecting materials, comprising the following steps: Step 1, Substrate Construction: Select product A and product B obtained through directional conversion, determine the mixing ratio of the two with sand based on the particle size distribution, bulk density and water content characteristics of the sandy soil, mix them evenly and lay them on the surface of the sandy soil to form an artificial soil substrate layer with a thickness of not less than 15 cm; this substrate layer can significantly improve the sandy soil's ability to retain water and nutrients, reduce evaporation and seepage losses, and fix coal-derived carbon in a form that is not easily decomposed in the soil mineral-organic complex during the structural stabilization process, thereby achieving physical sequestration and long-term stability of carbon; Step 2, System Activation: After the artificial soil base layer is formed, bioactive agent product D is applied to the rhizosphere area by atomization spraying or pipeline dripping to stimulate the metabolic activity of the original indigenous microbial population in the sandy land, enhance their ability to participate in organic matter decomposition and nutrient transformation, and synergistically promote the extension of plant roots and branching formation; at the same time, nutrient slow-release product C is introduced, which gradually releases nitrogen, phosphorus, potassium and trace elements in the microenvironment constructed by the new carbon-containing material, forming a rhizosphere micro-ecosystem in which plant absorption, microbial transformation and new material support mutually promote each other; Step 3, Carbon Sequestration Monitoring and Certification: Soil organic carbon sensor nodes and data acquisition terminals are deployed in the improvement area to continuously record the concentration of organic carbon in soil layers at different depths and its seasonal fluctuations. Based on internationally accepted soil carbon storage calculation procedures, the amount of carbon sequestration is quantitatively assessed, classified, archived, and independently verified to form standardized carbon sequestration certificates that can be used in the carbon trading market. Step 4, Zero-carbon agricultural production: Crop planting is carried out on plots where carbon sequestration and ecological restoration have been completed. The new carbon sequestration materials and their synergistic compounds produced by this system are used as the main fertilizer source throughout the entire process. Chemical NPK fertilizer, not exceeding 5% of the conventional amount, is only used as top dressing during the critical growth period of the crop. By combining input carbon accounting and output emission tracking, the product obtains carbon footprint certification covering the entire life cycle and meets the zero-carbon agricultural product standard.

[0007] Furthermore, the new carbon-based material uses low-rank coal as its main raw material, including lignite and weathered coal. After processing, the conversion pathways of the carbon, hydrogen, and oxygen elements contained in the material are controlled and guided, so that they all enter the target product system and are fixed and utilized, leaving no free elements or unconverted residues, thus ensuring the efficient integration and functionalization of the raw material components.

[0008] Furthermore, the new carbon collection material preparation process includes catalytic transformation and molecular network reconstruction operations carried out at temperatures lower than those of traditional pyrolysis, which promote the conversion of raw coal into a synergistic complex composed of more than 25 kinds of small molecule organic acids with different functional groups. This complex can play a role in inducing root germination, promoting root hair proliferation and recruiting microorganisms in the soil, and also has the functions of signal transduction and metabolic activation.

[0009] Furthermore, in the substrate construction step, the mixing ratio of product A and product B is dynamically adjusted according to the initial physicochemical properties of the sandy land. This includes setting the mixing ratio gradient based on the measurement results of sand particle size distribution, porosity, salt content and pH value, and verifying the substrate layer forming rate and wind erosion resistance through on-site trial mixing. This ensures that a stable carbon sequestration carrier layer can be quickly constructed and carbon sequestration efficiency can be improved under different sandy land conditions.

[0010] Furthermore, in the system activation step, product D is applied by spraying or drip irrigation at a concentration of 0.1%–0.5% by mass-volume ratio. The application time is selected in conjunction with soil moisture and temperature conditions to maintain the effective concentration and duration of action of the active ingredient in the rhizosphere, thereby effectively stimulating the proliferation rate and functional diversity of the native microbial community.

[0011] Furthermore, including: New carbon collection material preparation module: It is equipped with raw material pretreatment, catalytic conversion reaction and product separation unit, which is used to convert low-rank coal into multifunctional new carbon collection materials with carbon sequestration, soil improvement and biomass promotion functions. Application module for sandy land carbon sequestration and ecological synergistic improvement: Integrating material transportation, matrix construction and ecological regulation units, it is used to apply new carbon sequestration materials to sandy land to achieve simultaneous advancement of soil carbon sequestration and ecological restoration; Carbon sink monitoring and certification module: Deploy a soil carbon sensor network and data processing platform to continuously monitor changes in soil carbon sinks and conduct certification in accordance with standards; Zero-carbon agricultural production module: Equipped with planting management, input allocation and carbon footprint accounting tools for producing zero-carbon agricultural products on improved land.

[0012] Furthermore, the new carbon collection material preparation module adopts a low-temperature catalytic conversion process to complete the conversion of raw materials into target products in a closed reaction system, achieving 100% utilization of raw materials. Moreover, the gaseous, liquid and solid by-products generated during the reaction process are all recycled in subsequent processes. The overall operation does not discharge waste gas, wastewater and solid waste into the environment, forming a closed-loop system of materials and energy.

[0013] Furthermore, the sandy land carbon sequestration and ecological synergistic improvement application module includes: a mixing device—equipped with a quantitative feeding and stirring mechanism, which can uniformly mix the new carbon sequestration material with sand in a set ratio to form an artificial soil base layer; an application device—equipped with pressure spraying or drip control function, which can accurately deliver bioactive agent product D and nutrient slow-release product C to the rhizosphere as needed; and a monitoring device—equipped with soil moisture, temperature, electrical conductivity and vegetation spectrum sensing elements, which can obtain information on soil and vegetation growth status in real time.

[0014] Furthermore, the carbon sequestration monitoring and certification module continuously collects soil organic carbon content and related environmental parameters through IoT sensing devices deployed at different soil depths. The data is wirelessly transmitted to the analysis server, which automatically calculates the sequestration amount, generates a structured report, and completes third-party verification according to international and domestic carbon sequestration measurement rules such as VCS or CCER.

[0015] Furthermore, the zero-carbon agricultural product production module relies on the fertilization decision model and input carbon database to implement precise on-demand replenishment. It also combines operation records and emission factors from seedling to harvest to establish a carbon footprint tracking chain covering the entire process, ensuring that the carbon footprint accounting results of the produced agricultural products meet the zero-carbon standard and can be traced back to specific plots and batches through the coding system.

[0016] This invention provides a method and system for synergistic improvement of carbon sequestration and ecology in sandy areas based on novel carbon-collecting materials, which has the following beneficial effects: 1. Enhance the stability of carbon sequestration in sandy areas, improving carbon sequestration efficiency and sustainability. This method constructs an artificial soil substrate layer using novel carbon-sequestering materials A and B, directionally converting carbon from low-rank coal into a stable form and sequestering it within the soil, avoiding the problems of carbon loss and release in traditional carbon sequestration methods. Compared to conventional sandy area carbon sequestration technologies, this substrate layer combines water and fertilizer retention capabilities with carbon sequestration functions, enabling permanent carbon sequestration. Simultaneously, it activates the soil microecology through small-molecule organic acid complexes, promoting the accumulation of soil organic carbon. Combined with a carbon sequestration monitoring and certification module, it accurately tracks carbon sequestration increments, generates tradable carbon sequestration indicators, significantly enhancing the practical value and application potential of sandy area carbon sequestration, and providing an efficient technical path for achieving dual carbon goals.

[0017] 2. Achieving synergistic restoration of sandy land ecosystems and enhancing ecological stability. This method abandons single carbon sequestration or improvement models, and constructs a synergistic rhizosphere micro-ecosystem of plants, microorganisms, and new carbon-bearing materials through a systematic activation process. Bioactive agent product D specifically activates the native microbial community of the sandy land, preventing the invasion of alien species from disrupting the ecological balance, while simultaneously promoting plant root development and enhancing vegetation resilience. Nutrient slow-release product C works synergistically with the new carbon-bearing materials to continuously provide nutrients for vegetation growth, addressing the pain points of barren sandy land and the difficulty of vegetation survival. Compared to traditional sandy land improvement technologies, this method can rapidly increase vegetation coverage in sandy land, improve soil physicochemical properties, gradually restore the sandy land ecological chain, and achieve a two-way empowerment of carbon sequestration and ecological restoration.

[0018] 3. Efficiently utilize low-rank coal resources to achieve resource recycling and value upgrading. The new carbon-seized material uses low-rank coals such as lignite and weathered coal as raw materials. Through low-temperature catalytic conversion and molecular recombination processes, it achieves the complete and targeted conversion and utilization of C, H, and O elements, solving the problems of low utilization rate and high pollution from traditional combustion of low-rank coal. The preparation process forms a closed loop with no emissions of waste, conforming to the concept of green production. Compared with traditional low-rank coal utilization methods, this system transforms low-rank coal into a multifunctional material with carbon sequestration, fertilizer effects, and ecological activation functions, extending the low-rank coal industrial chain and increasing resource added value. At the same time, the raw materials are widely available and inexpensive, allowing for large-scale application and achieving coordinated development of resource utilization and ecological protection.

[0019] 4. Constructing a zero-carbon agricultural model to enhance the value and market competitiveness of agricultural products. This system relies on improved sandy land, using new carbon-sequestering materials as the main fertilizer, requiring only a very small amount of chemical NPK fertilizer. Through precise fertilization and carbon footprint tracking, it achieves zero-carbon agricultural production. Compared to conventional agricultural production, it significantly reduces the use of chemical fertilizers, lowers agricultural non-point source pollution, and ensures the quality of agricultural products. A complete carbon footprint certification and traceability system gives agricultural products a differentiated competitive advantage, aligning with current green consumption demands. This model not only revitalizes improved sandy land resources but also constructs a closed-loop industrial chain of "carbon sequestration - ecological improvement - agricultural product output," bringing sustainable economic benefits to sandy land management areas and contributing to rural revitalization and the integration of ecological industries.

[0020] 5. The technology boasts strong adaptability and low promotion costs, combining practicality and environmental friendliness. The mixing ratio of products A and B in this method can be dynamically adjusted according to the initial physicochemical properties of the sandy land. Product D is applied via spraying or drip irrigation, with controllable concentration, adapting to the improvement needs of different types of sandy land. The operation is simple and easy to implement. Each module of the system has a clear division of labor: the preparation module is environmentally friendly, the application module uses simple equipment, and the monitoring module relies on mature IoT technology to achieve automated data collection and authentication, requiring no complex equipment investment. Compared to existing sandy land improvement technologies, this system avoids high-energy-consumption and high-cost process designs, while also eliminating reliance on AI technology, lowering the technology promotion threshold. It can be applied on a large scale in arid and semi-arid sandy lands, providing a replicable and scalable technical solution for global sandy land management. Attached Figure Description

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0022] Figure 1 This is a flowchart of the improved method of the present invention; Figure 2 This is a flowchart illustrating the preparation process of the novel carbon collector material of this invention. Figure 3 This is a flowchart illustrating the application of the present invention in the synergistic improvement of carbon sequestration and ecological restoration in sandy areas. Figure 4 This is a flowchart of the carbon sink monitoring and certification process of this invention; Figure 5 This is a flowchart of the zero-carbon agricultural product production process of the present invention. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] How to use: The first step is to activate the new carbon-based material preparation module. Using low-rank coals such as lignite and weathered coal as raw materials, the module employs low-temperature catalytic conversion and molecular recombination processes to transform the raw materials into multifunctional new carbon-based materials, including product A, product B, and a synergistic complex containing various small-molecule organic acids. This module achieves full utilization of raw materials, with zero emissions of waste gas, wastewater, and solid waste during the production process, forming a closed loop. After the material preparation is completed, it is temporarily stored for later use, ensuring the stability of the material's performance.

[0026] Subsequently, the construction of the sandy soil base was carried out, and the mixing device in the sandy soil carbon sequestration and ecological synergistic improvement application module was activated. First, the initial physicochemical properties of the target sandy soil were investigated, and the mixing ratio of the new carbon sequestration material product A and product B was dynamically adjusted accordingly. The two were then thoroughly mixed with the sandy soil to quickly form an artificial soil base layer with good water and fertilizer retention capacity. At the same time, the carbon in the coal was sealed in the soil in a stable form, thus consolidating the foundation for sandy soil improvement and carbon sequestration.

[0027] After the substrate construction is completed, the system is activated. Bioactive agent product D is continuously applied using a dedicated application device, relying on the aforementioned application modules. Depending on the actual conditions of the sandy land, either spraying or drip irrigation is selected, and the application concentration is controlled within a reasonable range to ensure effective activation of the native microbial community and promote plant root development. Simultaneously, product D is used in conjunction with nutrient slow-release product C to construct a synergistic rhizosphere micro-ecosystem of plants, microorganisms, and new carbon-containing materials, enhancing the ecological improvement effect.

[0028] After activation, the carbon sequestration monitoring and certification module will be launched. The module's IoT monitoring device collects real-time data on changes in soil organic carbon content, achieving accurate data capture without manual intervention. The module automatically processes and analyzes the data, completing carbon sequestration measurement, reporting, and verification according to internationally recognized standards such as VCS or CCER, ultimately generating tradable soil carbon sequestration indicators. The entire certification process ensures compliance and data consistency.

[0029] Finally, the zero-carbon agricultural product production module was activated, and agricultural products were planted on the improved sandy land. Using the new carbon-collecting material prepared by this system as the main fertilizer, only a very small amount of chemical NPK fertilizer was needed as top dressing during the planting period; no other fertilizers were required. Through precise fertilization control and full-process carbon footprint tracking, the module records key information in real time during the planting process, ensuring that the carbon footprint of the agricultural products meets zero-carbon standards and that the entire production process is traceable, ultimately yielding zero-carbon agricultural products with complete carbon footprint certification.

[0030] During use, it is necessary to ensure that all modules operate in coordination. The monitoring devices of the application modules track the soil and vegetation growth throughout the process, and adjust the operation details in a timely manner to ensure the carbon sequestration effect, the quality of ecological improvement and the achievement of zero-carbon attributes of agricultural products. All operations rely on the existing functions and material characteristics of the system, without adding any extra irrelevant processes or substances.

[0031] Example 1: Carbon Sequestration and Ecological Improvement in Arid Desert Sandy Lands This embodiment is applied to arid desert sandy land, where the sandy soil is loose, water and fertilizer are easily lost, and the activity of native microorganisms is low. The operation is carried out by relying on a sandy land carbon sequestration and ecological synergistic improvement system based on new carbon collection materials, and the entire process follows the system usage specifications and the core content of the claims.

[0032] First, the new carbon aggregate material preparation module is started. Using locally available weathered coal as raw material, the module prepares product A, product B and a synergistic complex containing a variety of small molecule organic acids through low-temperature catalytic conversion and molecular recombination processes. The production process has no waste discharge and realizes full utilization of raw materials. After preparation, the materials are sealed and stored to maintain their activity.

[0033] Based on the geochemical properties of desert sand, the mixing ratio of product A and product B is dynamically adjusted. Through the mixing device of the sandy land carbon sequestration and ecological synergistic improvement application module, the two are thoroughly mixed with sand to quickly form an artificial soil base layer. This base layer effectively locks in moisture and nutrients, while permanently sealing carbon from weathered coal in a stable form in the soil, thus solving the problem of easy water and fertilizer loss in desert sand.

[0034] After the basal layer is formed, bioactive agent product D is applied via drip irrigation using the application module's application device, in conjunction with nutrient slow-release product C, to construct a stable rhizosphere micro-ecosystem. This effectively activates the native drought-resistant microbial community, promotes root development of subsequently planted plants, and enhances plant stress resistance. Subsequently, the carbon sink monitoring and certification module is activated, using IoT devices to monitor changes in soil organic carbon in real time, completing carbon sink measurement and certification according to internationally recognized standards, and generating tradable carbon sink indicators.

[0035] The zero-carbon agricultural production module was launched on the improved sandy land. New carbon-collecting materials were used as the main fertilizer, with only a small amount of chemical NPK fertilizer as top dressing. Drought-resistant miscellaneous grains were planted. Through the module's precise fertilization control and carbon footprint tracking, it was ensured that the crop carbon footprint met the zero-carbon standard. The entire production process was traceable, and the final harvest was zero-carbon miscellaneous grains with complete carbon footprint certification.

[0036] Example 2: Carbon Sequestration and Ecological Restoration in Semi-arid Sandy Lands This embodiment is applicable to semi-arid sandy areas with mild desertification, low soil organic matter content, and insufficient vegetation cover. The synergistic improvement system achieves the dual goals of carbon sequestration and ecological restoration, and the operation process is consistent with the system module functions and material characteristics.

[0037] A new carbon collection material preparation module was launched, using lignite as the core raw material. Through the module's low-temperature catalytic conversion process and molecular recombination technology, products A, B, C, and D were prepared. The material conversion process forms a closed loop with no waste emissions. The resulting small molecule organic acid complex can be used as a microbial activation signal molecule for later use.

[0038] The physical and chemical properties of the target semi-arid sandy land were investigated, and the mixing ratio of product A and product B was adjusted according to the degree of desertification. The material was uniformly mixed with sand through the mixing device of the application module to quickly construct an artificial soil base layer, improve the soil's water and fertilizer retention capacity, and at the same time achieve stable sequestration of lignite carbon, providing a foundation for vegetation growth.

[0039] The bioactive agent product D, combined with the slow-release nutrient product C, is applied via foliar spraying to activate the native microbial community in the sandy area. This accelerates soil nutrient transformation, promotes root growth of psammophytic plants, and forms a synergistic micro-ecological system of plants, microorganisms, and new carbon-collecting materials, gradually increasing vegetation cover. A carbon sequestration monitoring and certification module is simultaneously activated, collecting data in real time through IoT devices and automatically generating carbon sequestration reports and tradable indicators that meet international standards.

[0040] Based on the zero-carbon agricultural product production module, crops such as sea buckthorn, which have both ecological and economic value, are planted in the improved area. New carbon-collecting materials are used as the main fertilizer, with a small amount of topdressing added as needed. Through the module's carbon footprint tracking function, the entire planting process is recorded to ensure that the products meet the zero-carbon standard, thus achieving synergy between ecological restoration and economic benefits.

[0041] Example 3: Carbon sequestration and zero-carbon fruit and vegetable production in degraded sandy land This embodiment targets degraded sandy land caused by over-cultivation, where the soil structure is damaged and carbon storage is insufficient. The system described above enables sandy land restoration, carbon sequestration, and zero-carbon fruit and vegetable production. The operation of each step strictly corresponds to the claims and system functions.

[0042] A new carbon-based material preparation module was launched, using a mixture of lignite and weathered coal as raw materials. Through the module's low-temperature catalytic conversion and molecular recombination process, a complete set of new carbon-based materials was prepared, including product A, product B, nutrient slow-release product C, and bioactive agent product D. The production process achieves full utilization of raw materials and zero emissions of waste, ensuring the environmental protection properties and synergistic effects of the materials.

[0043] By combining the physical and chemical properties of degraded sandy land, the mixing ratio of product A and product B is dynamically adjusted. The mixing device of the application module fully integrates the materials with the degraded sandy soil, quickly forming an artificial soil base layer with stable structure and strong water and fertilizer retention capacity. The carbon in the raw materials is stably sealed in the soil, and the damaged soil structure is repaired.

[0044] Bioactive agent product D is sprayed through an application device, working in conjunction with product C to construct an efficient rhizosphere micro-ecosystem, activating native soil microorganisms, promoting root development of fruits and vegetables, and improving soil fertility. The carbon sequestration monitoring and certification module operates continuously, monitoring changes in soil organic carbon in real time through IoT devices, completing carbon sequestration measurement, reporting, and verification according to standards, and generating tradable carbon sequestration indicators.

[0045] The zero-carbon agricultural product production module is launched, and barren-tolerant fruit and vegetable varieties are planted on the improved sandy land. New carbon-collecting materials are used as the main fertilizer, with only a small amount of chemical NPK fertilizer as top dressing. Through the module's precise fertilization management, fertilizer waste is avoided. At the same time, the carbon footprint is tracked throughout the process to ensure that the fruit and vegetable production process meets zero-carbon standards and that all links are traceable. The final product is a zero-carbon fruit and vegetable with complete carbon footprint certification.

[0046] Example 4: Carbon Sequestration and Ecological Improvement in Coastal Sandy Land This embodiment is applied to coastal sandy areas where the soil has high salinity, weak microbial activity, and a high risk of carbon loss. The synergistic improvement system described above is used to achieve carbon sequestration, desalination assistance, and ecological improvement. The operation process is in line with the characteristics of coastal sandy areas and the functional requirements of the system.

[0047] A new carbon-based material preparation module was launched, using lignite as the core raw material. Through the module's low-temperature catalytic conversion and molecular recombination process, products A, B, C, and D were prepared. The small-molecule organic acid complexes in the resulting materials can effectively activate salt-tolerant microorganisms. The production process is a closed loop with no waste discharge, which meets the needs of coastal ecological and environmental protection.

[0048] Based on the physicochemical properties and salinity characteristics of coastal sandy land, the mixing ratio of product A and product B was adjusted. The materials were uniformly mixed with the coastal sandy soil through the mixing device of the application module to construct an artificial soil base layer. This base layer can not only stably seal carbon elements, but also help lock in moisture, alleviate the damage of salt, and improve the soil environment by utilizing the material properties.

[0049] Bioactive agent product D, applied via drip irrigation in combination with nutrient slow-release product C, activates the native salt-tolerant microbial community in the sandy soil, promotes root growth of salt-tolerant plants, constructs a rhizosphere micro-ecosystem adapted to the coastal environment, and gradually improves soil fertility and vegetation cover. A carbon sequestration monitoring and certification module operates concurrently, collecting soil organic carbon data in real time, completing certification according to internationally recognized standards, and generating tradable carbon sequestration indicators.

[0050] Subsequently, relying on the zero-carbon agricultural product production module, salt-tolerant cash crops will be planted, with new carbon-sequestering materials as the main fertilizer and a small amount of topdressing supplemented. Through the module's carbon footprint tracking and precision fertilization, it will be ensured that the crops meet the zero-carbon standard, while further consolidating the carbon sequestration effect and ecological improvement results, achieving a win-win situation for the ecological and economic value of the coastal sandy land.

[0051] Example 5: Carbon Sequestration and Ecological Restoration in High-Altitude Sandy Lands This embodiment is applicable to high-altitude sandy areas, where the climate is cold, the soil freezes for a long time, microbial activity is low, and vegetation growth is slow. Carbon sequestration and ecological restoration are carried out based on the system described above. The operation process is adapted to the characteristics of the high-altitude environment and strictly follows the claims and system specifications.

[0052] A new carbon collection material preparation module was launched. Using weathered coal as raw material, the module prepared new carbon collection materials through low-temperature catalytic conversion and molecular recombination processes. Products A, B, C and D are all suitable for the soil and vegetation characteristics in high-altitude and cold environments. The production process has no waste discharge. The materials have good low-temperature stability. After preparation, they are properly stored to prevent freezing damage.

[0053] By combining the physical and chemical properties and freezing characteristics of soil in high-altitude sandy areas, the mixing ratio of product A and product B is adjusted. During the soil thawing period, the mixing device of the application module is used to fully mix the materials with the sand, quickly forming an artificial soil base layer, stabilizing and storing carbon elements, while improving the soil's heat preservation and water retention capacity, creating favorable conditions for vegetation growth.

[0054] Bioactive agent product D is sprayed through an application device, working in conjunction with product C to activate the native cold-resistant microbial community in the soil. This promotes root development in alpine vegetation, enhances its cold resistance, and constructs a rhizosphere micro-ecosystem adapted to the cold environment. The carbon sequestration monitoring and certification module continuously monitors changes in soil organic carbon, completes carbon sequestration measurement and certification according to standards, and generates tradable indicators.

[0055] The zero-carbon agricultural production module is launched, planting cold-resistant forage grasses and specialty crops, using new carbon-sequestering materials as the main fertilizer and supplementing with a small amount of topdressing. Through precise management and carbon footprint tracking of the module, it is ensured that the crops meet the zero-carbon standard. At the same time, the carbon sequestration effect is further consolidated by vegetation growth, gradually improving the ecological environment of high-altitude sandy areas and achieving the synergistic goal of ecological restoration and carbon sequestration.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for synergistic improvement of sandy land carbon sequestration and ecological environment based on novel carbon-collecting materials, characterized in that, Includes the following steps: Step 1, Substrate Construction: Mix the new carbon-sequestering material product A and product B with sand in a specific ratio to quickly form an artificial soil substrate layer with good water and fertilizer retention capacity, permanently sequestering the carbon in the coal in a stable form in the soil. Step 2, System Activation: Apply bioactive agent product D to activate the native microbial community of the sandy land, promote plant root development, and combine with nutrient slow-release product C to construct a rhizosphere micro-ecosystem with synergistic effects of plants, microorganisms, and new carbon-containing materials. Step 3, Carbon Sequestration Monitoring and Certification: Monitor changes in soil organic carbon content through IoT devices, and conduct carbon sequestration measurement, reporting and verification in accordance with internationally recognized standards to generate tradable soil carbon sequestration indicators; Step 4, Zero-carbon agricultural production: On the improved land, using materials from this system as the main fertilizer, only a very small amount of chemical NPK fertilizer is needed as top dressing, to produce zero-carbon agricultural products with complete carbon footprint certification.

2. The method according to claim 1, characterized in that, The new carbon-based material uses low-rank coal as the main raw material, including lignite and weathered coal, and its elemental composition (C, H, O) is completely converted and utilized.

3. The method according to claim 1, characterized in that, The new carbon-based material preparation process includes low-temperature catalytic conversion and molecular recombination, which transforms the raw materials into a synergistic complex containing more than 25 kinds of small molecule organic acids, serving as a powerful signaling molecule and activator for plant roots and soil microorganisms.

4. The method according to claim 1, characterized in that, In the substrate construction step, the mixing ratio of product A and product B is dynamically adjusted according to the initial physicochemical properties of the sandy land to ensure the rapid formation of the artificial soil substrate and the efficiency of carbon sequestration.

5. The method according to claim 1, characterized in that, In the system activation step, product D is applied by spraying or drip irrigation at a concentration of 0.1%-0.5% to ensure effective activation of the native microbial community.

6. A sandy land carbon sequestration and ecological synergistic improvement system based on novel carbon-collecting materials, characterized in that, include: New carbon holding material preparation module: used to convert low-rank coal into multifunctional new carbon holding materials; Application module for sandy land carbon sequestration and ecological synergistic improvement: This module is used to apply new carbon sequestration materials to sandy land to achieve soil carbon sequestration and ecological restoration. Carbon sink monitoring and certification module: used to monitor changes in soil carbon sinks and conduct certification; Zero-carbon agricultural production module: Used to produce zero-carbon agricultural products on improved land.

7. The system according to claim 6, characterized in that, The new carbon collection material preparation module adopts a low-temperature catalytic conversion process to achieve 100% utilization of raw materials, and the production process does not discharge waste gas, wastewater or solid waste, forming a closed loop.

8. The system according to claim 6, characterized in that, The application module for sandy land carbon sequestration and ecological synergistic improvement includes: a mixing device for mixing new carbon-sequestering materials with sand to form an artificial soil base layer; an application device for applying bioactive agents and slow-release nutrients; and a monitoring device for monitoring the growth status of soil and vegetation.

9. The system according to claim 6, characterized in that, The carbon sink monitoring and certification module collects soil organic carbon data in real time through IoT devices and automatically generates carbon sink reports that comply with VCS or CCER standards.

10. The system according to claim 6, characterized in that, The zero-carbon agricultural product production module ensures that the carbon footprint of agricultural products meets the zero-carbon standard through precise fertilization and carbon footprint tracking, and that the entire production process is traceable.

Images