Water and soil loss treatment and carbon sequestration and sink increase coupling regulation and control method for bamboo resource development

Abstract

The invention provides a water and soil loss treatment and carbon sequestration and sink increase coupling regulation and control method for bamboo resource development, which comprises the following steps: integrating adaptive technologies of soil, plants and industries, verifying the influence of different soil types and plant types on water and soil loss and carbon sequestration through field investigation and experiments, and optimizing technology integration. Aiming at the eroded inferior land, a fertility improving technology is developed, and the soil fertility is recovered and the plant growth is promoted through biological fertilizer and organic matter modifier experiments, so that further land erosion is prevented. Thirdly, the effect of bamboo forest root systems on soil stabilization is discussed, and the optimal planting density and management measures are formulated. According to the method, the binary opposition of treatment and development is broken, the adaptability of soil and plants is combined, an efficient bamboo forest economic utilization technology is developed, the dual goals of water and soil conservation and resource utilization are achieved, and sustainable development of local economy is promoted.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon fixation and carbon sink enhancement, and specifically relates to a coupled regulation method for soil and water loss control and carbon fixation and carbon sink enhancement in bamboo resource development. Background Art

[0002] The existing bamboo resource development, soil and water loss control and carbon sequestration and sink enhancement technologies and problems mainly include the following aspects: 1) Bamboo forest construction and management technology. Existing technologies include: a series of management measures including bamboo forest planting, tending, fertilization, pest and disease control. However, there are still problems such as low bamboo forest management level, resulting in unstable bamboo forest production and quality; unreasonable bamboo forest planning and layout, which may lead to resource waste and negative ecological impact; and immature pest and disease control technology, which is easy to cause bamboo forest decline. 2) Soil and water conservation technology. Existing technologies are not adaptable to the natural environment and lack measures adapted to local conditions (bamboo forests). 3) Carbon sequestration and sink enhancement technology. Existing technologies use vegetation (including bamboo forests) to absorb carbon dioxide and improve carbon sink capacity through vegetation management and soil improvement. However, there are still difficulties in evaluating carbon sequestration effects and lack of long-term monitoring data; carbon sink capacity is greatly affected by natural disasters, climate change and other factors; insufficient technical and policy support, resulting in limited implementation effects. 4) Lack of a comprehensive technical system. There is a lack of a comprehensive technical system that organically combines bamboo resource development, soil and water loss control, and carbon sequestration and enhancement; there is insufficient synergy between the various technologies, resulting in insignificant overall benefits; there is insufficient investment in the research and practice of comprehensive technologies, and a lack of systematic guidance and standards. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a coupled regulation method for soil and water loss control and carbon fixation and sink enhancement in bamboo resource development in view of the deficiencies of the above-mentioned prior art. The method is **.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for coupling soil and water loss control and carbon fixation and sink enhancement in bamboo resource development, characterized in that it includes:

[0005] S1. Collect historical observation data, sort out the soil and water loss status of bamboo resource development and conduct dynamic processes; obtain the current soil and water loss control methods and technical data of bamboo resource development, integrate soil erosion, vegetation coverage, meteorological changes, hydrological data and sediment content data, and analyze the evolution mechanism and control results of soil and water loss in bamboo resource development;

[0006] S2. Using GPS positioning and geomorphological analysis methods, a typical newly planted bamboo forest sapling erosion slope with complete slope structure was selected as the research object to determine the soil erosion intensity;

[0007] S3. Based on the monitoring data set of rainfall, runoff, erosion and sand production in the newly planted bamboo forest, the effects of bamboo forest growth and nurturing management measures on soil erosion were analyzed. The slope runoff plots of the proposed sites were used to carry out simulation experiments on the configuration and ecological management of newly planted bamboo forests, and a comprehensive observation system for soil, water, and air elements in the runoff plots was established to obtain soil, water, and air elements in the runoff plots.

[0008] S4, compile soil organic carbon, total nitrogen, bulk density, moisture content, pH value, porosity, mechanical composition and aggregate composition, microbial abundance and community structure into a data set, and preprocess the data set;

[0009] S5. Using the preprocessed data set and the soil and water loss related data of bamboo resource development areas, the hierarchical cluster analysis method was used to divide the areas into different clusters to reveal the characteristics and trends of soil and water loss evolution in different areas; Spearman rank correlation analysis was performed on precipitation and soil erosion, vegetation coverage and soil erosion in bamboo resource development areas to obtain the relationship strength and direction between precipitation and soil erosion, and vegetation coverage and soil; BRT was used to analyze the amount of soil and water loss in bamboo resource development areas to obtain the linear relationship between precipitation, soil type, and vegetation coverage on soil and water loss;

[0010] S6. Select bamboo forest areas to conduct experiments on soil erosion control and carbon sequestration. Combined with the evolution mechanism of soil erosion and control results of bamboo resource development in S1, the determination of soil erosion intensity in S2, the water, soil and aerobic elements in the runoff area in S3, the intensity and direction of the relationship between precipitation and soil erosion, vegetation coverage and soil in S5, and the linear relationship between precipitation, soil type and vegetation coverage and soil erosion, evaluate the carbon fixation capacity of bamboo forest areas under different soil improvement conditions, and monitor and estimate the carbon pool in the soil.

[0011] Preferably, the historical observation data in S1 include soil erosion, vegetation coverage, meteorological changes, hydrological data and sediment content data; the bamboo resource development situation can be obtained through relevant reports, academic literature and survey reports of local agricultural and forestry departments.

[0012] Preferably, data on soil and water loss control methods and technologies for current bamboo resource development are obtained through interviews with bamboo farmers and local water conservation personnel.

[0013] Preferably, the multidimensional data of soil erosion, vegetation cover, meteorological changes, hydrological data and sediment content are integrated to establish a dynamic model of soil and water loss in the Chishui River Basin. Combined with the spatial data obtained by remote sensing technology and the measured data from field surveys, a comprehensive soil and water loss monitoring and assessment system is constructed.

[0014] Preferably, soil erosion areas of different intensities are selected as observation areas on the eroded slope of a typical newly planted bamboo forest in the young forest stage with a complete slope structure in S2, and soil samples are collected at different locations in each observation area according to a certain sampling density.

[0015] Preferably, the preprocessing in S4 includes data cleaning, outlier processing, and data normalization.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The improvement direction of the present invention is to strengthen the scientific management of bamboo forests, improve the economic and ecological benefits of bamboo forests; develop and promote soil and water conservation technologies that are suitable for different regions, and improve the applicability and operability of the technology; strengthen the research on carbon sequestration and carbon sink enhancement technologies, and establish a scientific evaluation and monitoring system; construct a comprehensive technical system that combines bamboo resource development, soil and water loss control, and carbon sequestration and carbon sink enhancement, and achieve multi-objective coordination and maximize benefits as a guide. Ultimately, the economic benefits of bamboo resource development will be significantly improved, while achieving the ecological goals of soil and water conservation and increased carbon sinks. This method explores the technical development and integration of soil and water loss control and carbon sequestration and carbon sink enhancement in the process of agricultural and forestry development, and its innovative points are mainly concentrated in the following aspects:

[0018] 1. Systematic integration of soil-plant-industry adaptive technology system: In the context of bamboo resource development, the study systematically integrated soil, plant and industry adaptive technologies for the first time, and clarified the synergistic approach to improving ecological functions such as soil erosion control and carbon sequestration. By comprehensively considering soil fertility, plant growth and industrial development, a complete technical system has been formed.

[0019] 2. Fertility improvement technology for eroded poor land: A fertility improvement technology for eroded poor land was proposed, providing a practical means of restoration for areas with severe soil erosion. This technology not only helps to improve soil quality, but also promotes the rapid formation of plants and enhances the stability of the ecosystem.

[0020] 3. Rapid bamboo forest formation and ecological protection management technology: Combining the concept of ecological protection, a comprehensive soil and water loss management technology system has been formed. This not only improves the carbon sink function of bamboo forests, but also takes into account ecological environmental protection.

[0021] 4. Breaking the traditional barriers between governance and development: The research breaks through the traditional binary opposition between governance and development. Based on the adaptability of soil and plants, it constructs a soil-plant resource efficient development and carbon sequestration technology under the new stage of soil and water loss governance needs. This innovation provides new ideas and methods for achieving a win-win situation between soil and water conservation and economic development.

[0022] 5. Comprehensive technology directional regulation: Combined with the experimental plan, a comprehensive technology of directional regulation for bamboo resource development, soil and water loss control, and carbon sequestration and sink enhancement has been formed. This technology not only provides specific guidance for practical applications, but also provides theoretical basis and technical support for the comprehensive control of bamboo forest soil and water loss and the realization of carbon peak and carbon neutrality goals.

[0023] The technical solution of the present invention is further described in detail below through embodiments. DETAILED DESCRIPTION

[0024] Example 1

[0025] This embodiment provides a coupled regulation method for soil erosion control and carbon sequestration and sink enhancement for bamboo resource development in the Chishui River Basin, the method comprising:

[0026] S1. Collect historical observation data in the Chishui River Basin, sort out the status of soil and water loss in bamboo resource development and conduct dynamic processes; obtain data on current soil and water loss control methods and technologies for bamboo resource development, integrate soil erosion, vegetation coverage, meteorological changes, hydrological data and sediment content data, and analyze the evolution mechanism and control results of soil and water loss in bamboo resource development;

[0027] The development status of bamboo resources can be obtained through relevant reports, academic literature and survey reports of local agricultural and forestry departments.

[0028] Data integration: Integrate multi-dimensional data such as soil erosion, vegetation cover, meteorological changes, hydrological data and sediment content to establish a dynamic model of soil and water loss in the Chishui River Basin. Combine spatial data obtained by remote sensing technology with measured data from field surveys to build a comprehensive soil and water loss monitoring and assessment system.

[0029] Analysis method: Use time series analysis to study the long-term impact of bamboo resource development on soil erosion and its evolution mechanism. Through model simulation and field verification, evaluate the actual effect and cost-effectiveness of different management measures on soil and water conservation.

[0030] Obtain the current soil and water loss control methods and technical data of bamboo resource development through interviews with bamboo farmers and local water conservation personnel: Specifically, interview subjects selection: Interviews with bamboo farmers and local water conservation personnel to obtain current control methods and technical data: Interview surveys are conducted on farmers and local water conservation personnel engaged in bamboo resource development and soil and water conservation in the Chishui River Basin. The interview subjects are determined to include bamboo farmers, soil and water conservation technical experts, and responsible personnel from relevant departments of local governments. Survey content: Obtain the main soil and water loss problems and their impacts in the process of bamboo resource development. Record the main soil and water loss control methods currently adopted, such as terrace construction, bamboo forest planting structure adjustment, and the implementation of soil and water conservation measures. Collect the experience and technical data accumulated by bamboo farmers in actual operations, such as the growth rate of bamboo forests and the protective effect of roots on the soil.

[0031] S2. Using GPS positioning and geomorphological analysis methods, a typical newly planted bamboo forest sapling erosion slope with complete slope structure was selected as the research object to determine the soil erosion intensity;

[0032] Specifically, soil erosion areas of different intensities were selected as observation areas on the erosion slope of a typical newly planted bamboo forest in the young forest period with a complete slope structure. In each observation area, soil samples were collected in different sections according to a certain sampling density. The selection of sampling points can be determined according to the geomorphic characteristics and the degree of soil erosion. When collecting soil samples, iron-free tools should be used to avoid contamination, and attention should be paid to maintaining the integrity of the samples. The collected soil samples should be properly stored to avoid exposure to sunlight or other sources of pollution. The samples can be placed in sealed bags and stored under low temperature conditions to ensure that they remain in good condition before laboratory analysis.

[0033] S3. Based on the monitoring data set of rainfall, runoff, erosion and sand production in the newly planted bamboo forest, the effects of bamboo forest growth and nurturing management measures on soil erosion were analyzed. The slope runoff plots of the proposed sites were used to carry out simulation experiments on the configuration and ecological management of newly planted bamboo forests, and a comprehensive observation system for soil, water, and air elements in the runoff plots was established to obtain soil, water, and air elements in the runoff plots.

[0034] S4, compile soil organic carbon, total nitrogen, bulk density, moisture content, pH value, porosity, mechanical composition and aggregate composition, microbial abundance and community structure into a data set, and preprocess the data set;

[0035] Specifically, soil organic carbon, total nitrogen, bulk density, moisture content, pH value, porosity, mechanical composition and aggregate composition characteristics are analyzed. For soil organic carbon and total nitrogen, high temperature combustion method or wet digestion method can be used for determination. Bulk density can be determined by weighing method or gas displacement method. Moisture content can be determined by weight method or drying method. pH value can be determined by glass electrode or acid-base titration method. Porosity can be determined by porosimeter or saturation method. Mechanical composition can be graded and analyzed by screening, precipitation and centrifugation. Aggregate composition characteristics can be analyzed by dispersion determination, cohesion determination and other methods. Molecular biological techniques, such as PCR and sequencing technology, are used to detect the abundance and community structure of soil microorganisms. Appropriate gene markers, such as 16S rRNA and ITS, can be selected as target sequences for amplification and sequencing. For the detection of abundance, fluorescent quantitative PCR or real-time quantitative PCR can be used for determination. For the analysis of community structure, high-throughput sequencing technology, such as Illumina sequencing platform, can be used for sequencing and data analysis. Preprocess the measured data, including data cleaning, outlier processing, data normalization, etc. Use statistical software or programming languages, such as Python or R, to process and analyze the data. Calculate the correlation between soil indicators, draw charts, perform cluster analysis, multiple regression analysis and other statistical methods to interpret the data.

[0036] S5. Using the preprocessed data set and the soil and water loss related data of bamboo resource development areas, the hierarchical cluster analysis method was used to divide the areas into different clusters to reveal the characteristics and trends of soil and water loss evolution in different areas; Spearman rank correlation analysis was performed on precipitation and soil erosion, vegetation coverage and soil erosion in bamboo resource development areas to obtain the relationship strength and direction between precipitation and soil erosion, and vegetation coverage and soil; BRT was used to analyze the amount of soil and water loss in bamboo resource development areas to obtain the linear relationship between precipitation, soil type, and vegetation coverage on soil and water loss;

[0037] S6. Select bamboo forest areas to conduct soil structure improvement experiments, biological activity enhancement experiments, soil erosion control and carbon sequestration experiments. Combined with the soil erosion evolution mechanism and control results of bamboo resource development in S1, soil erosion intensity determined in S2, water, soil and aerobic elements in runoff areas in S3, the intensity and direction of the relationship between precipitation and soil erosion, vegetation coverage and soil obtained in S5, and the linear relationship between precipitation, soil type and vegetation coverage and soil erosion, evaluate the carbon fixation capacity of bamboo forest areas under different soil improvement conditions, and monitor and estimate the carbon pool in the soil.

[0038] In this embodiment, the soil structure improvement experiment includes: selecting a bamboo forest area, and setting different treatment groups and control groups according to different soil types and vegetation coverage. Soil samples from each treatment group and control group are collected to analyze the physical and chemical properties of the soil, including soil texture, organic matter content, number of microorganisms, etc. Soil conditioners such as organic fertilizers and biochar are applied to the treatment group, changes in soil structure are observed, and indicators such as soil permeability and water retention capacity are continuously monitored. The improvement of soil structure is evaluated by indicators such as soil porosity and aggregate stability.

[0039] In this embodiment, the biological activity enhancement experiment includes: evaluating the difference in microbial activity in soil between different treatment groups and control groups by means of soil microbial activity detection, enzyme activity analysis, etc. A plant growth experiment is conducted to observe the growth of bamboo forests under different soil improvement conditions, and to measure plant biomass and nutrient content. Soil samples are collected, and the soil microbial community structure is analyzed using high-throughput sequencing technology to evaluate changes in soil microbial diversity and functional richness.

[0040] In this embodiment, the soil erosion control and carbon sequestration experiment includes: setting up a small soil erosion simulation experimental platform with different slopes and vegetation coverage conditions to simulate the soil erosion process under rainfall conditions. Observe the soil erosion under different treatments, and measure indicators such as soil loss and runoff rate. Use the carbon balance model to evaluate the carbon fixation capacity of the bamboo forest area under different soil improvement conditions, and monitor and estimate the carbon pool in the soil.

[0041] The above is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent change made to the above embodiment according to the technical essence of the invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A method for coupling soil and water loss control and carbon sequestration and sink enhancement in bamboo resource development, characterized in that: include: S1. Collect historical observation data, sort out the soil and water loss status of bamboo resource development and conduct dynamic processes; Obtain the current data on soil and water loss control methods and technologies for bamboo resource development, integrate soil erosion, vegetation coverage, meteorological changes, hydrological data and sediment content data, and analyze the evolution mechanism and control effects of soil and water loss in bamboo resource development; S2. Using GPS positioning and geomorphological analysis methods, a typical newly planted bamboo forest sapling erosion slope with complete slope structure was selected as the research object to determine the soil erosion intensity; S3. Based on the monitoring data set of rainfall, runoff, erosion and sand production in the newly planted bamboo forest, the effects of bamboo forest growth and nurturing management measures on soil erosion were analyzed. The slope runoff plots of the proposed sites were used to carry out simulation experiments on the configuration and ecological management of newly planted bamboo forests, and a comprehensive observation system for soil, water, and air elements in the runoff plots was established to obtain soil, water, and air elements in the runoff plots. S4, compile soil organic carbon, total nitrogen, bulk density, moisture content, pH value, porosity, mechanical composition and aggregate composition, microbial abundance and community structure into a data set, and preprocess the data set; S5. Using the preprocessed dataset and the soil and water loss related data of bamboo resource development areas, the hierarchical cluster analysis method was used to divide the areas into different clusters to reveal the characteristics and trends of soil and water loss evolution in different areas; Spearman rank correlation analysis was conducted on precipitation and soil erosion, and vegetation coverage and soil erosion in the bamboo resource development area to obtain the relationship strength and direction between precipitation and soil erosion, and vegetation coverage and soil; BRT was used to analyze the amount of soil and water loss in the bamboo resource development area, and the linear relationship between precipitation, soil type, and vegetation coverage on soil and water loss was obtained; S6. Select bamboo forest areas to conduct soil structure improvement experiments, biological activity enhancement experiments, soil erosion control and carbon sequestration experiments, and combine the soil erosion evolution mechanism and control results of bamboo resource development in S1, soil erosion intensity determination in S2, water, soil and aerobic elements in runoff areas in S3, the relationship strength and direction between precipitation and soil erosion, vegetation coverage and soil obtained in S5, and the linear relationship between precipitation, soil type and vegetation coverage and soil erosion, to evaluate the carbon fixation capacity of bamboo forest areas under different soil improvement conditions, and monitor and estimate the carbon pool in the soil.

2. The method for coupling soil and water loss control and carbon sequestration and sink enhancement in bamboo resource development according to claim 1, characterized in that: S1 uses historical observation data including soil erosion, vegetation cover, meteorological changes, hydrological data and sediment content data; bamboo resource development status can be obtained through relevant reports, academic literature and survey reports of local agricultural and forestry departments.

3. The method for coupling soil and water loss control and carbon sequestration and sink enhancement in bamboo resource development according to claim 2, characterized in that: Data on soil and water loss control methods and technologies for current bamboo resource development were obtained through interviews with bamboo farmers and local water conservation personnel.

4. The method for coupling soil and water loss control and carbon sequestration and sink enhancement in bamboo resource development according to claim 2, characterized in that: By integrating multi-dimensional data on soil erosion, vegetation cover, meteorological changes, hydrological data and sediment content, a dynamic model of soil and water loss in the Chishui River Basin was established. By combining spatial data obtained by remote sensing technology and measured data from field surveys, a comprehensive soil and water loss monitoring and assessment system was constructed.

5. The method for coupling soil and water loss control and carbon sequestration and sink enhancement in bamboo resource development according to claim 1, characterized in that: Soil erosion areas with different intensities were selected as observation areas on the eroded slope of a typical newly planted bamboo forest in the young forest stage with complete slope structure in S2. In each observation area, soil samples were collected in different sections according to a certain sampling density.

6. The method for coupling soil and water loss control and carbon sequestration and sink enhancement in bamboo resource development according to claim 1, characterized in that: The preprocessing in S4 includes data cleaning, outlier processing, and data normalization.