Ecological soil fixing agent suitable for soil improvement in high-cold region and application of ecological soil fixing agent

Abstract

The invention relates to an ecological soil fixation agent suitable for soil improvement in an alpine region and application of the ecological soil fixation agent, and relates to the technical field of soil fixation agents. The ecological soil fixing agent suitable for soil improvement in the high-cold region comprises the following components: 0.15-0.25 wt% of a nano silicate matrix, 98 wt% of an organic-mineral composite phase, 0.03 wt% of a biological enhancement component and 0.02 wt% of a plant response component. A natural material compounding system is creatively adopted, an organic-inorganic-biological synergistic effect mechanism is constructed, soil physical improvement and ecological function restoration are synchronously achieved, field tests prove that the vegetation coverage can be improved by 65-80%, key technical support is provided for plateau ecological barrier construction, and the method has a wide application prospect. The degradation problems of poor water-retaining property, low organic matter content, weak microbial activity and the like of the sandy loam in the high-cold region are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of soil-fixing agents, and in particular to an ecological soil-fixing agent suitable for improving soil in alpine regions and applications thereof. Background Art

[0002] Soil is the foundation of Earth's ecosystems, and its quality and stability are directly related to vegetation growth, water conservation, and the overall health of the ecosystem. However, in alpine regions and other areas with similar climatic and geographical conditions, soils face numerous challenges that severely constrain the stability and sustainable development of the local ecosystem.

[0003] The geological structure of alpine regions is complex, and the soil formation conditions are special. The soils in these areas are often of young geological age, with low maturity of soil-forming parent materials, and are significantly affected by the coupling of extreme climate and landforms. For example, the crust thickness in high-altitude areas is relatively large, and the proportion of granite weathering products is high, resulting in the widespread distribution of sandy loam with extremely low organic matter content. At the same time, extreme climatic conditions, such as low annual precipitation and large temperature differences between day and night, cause the soil moisture evaporation rate to be extremely fast, and the soil cohesion and anti-erosion capacity are unbalanced, making it very prone to erosion and degradation.

[0004] Soil characteristics in alpine regions are characterized by a high proportion of sandy loam, poor water holding capacity, low organic matter content, insufficient nutrients, and a poor microbial environment. Sandy loam soils have low effective field water holding capacity, poor aggregate stability, and are susceptible to wind and water erosion. The lack of organic matter results in low soil fertility, making it unable to meet the needs of plant growth. Furthermore, the poor microbial environment restricts microbial reproduction and activity, further impacting the soil's ecological functions and productivity.

[0005] Furthermore, the climatic characteristics of high-altitude regions place higher demands on soil improvement. The high-altitude, oxygen-deficient environment, low temperatures, and large diurnal temperature swings pose severe stress to plant growth. Rapid evaporation and soil drought are prominent issues, making soil moisture conservation and utilization critical. However, traditional soil improvement techniques are often ineffective or even unsuitable under these special conditions. Plain-type soil conditioners are ineffective at high altitudes, the application of chemical fertilizers can be ecotoxic, and the improvement period is short, making them unable to meet the needs of long-term ecological restoration.

[0006] To address the challenges of soil improvement in high-altitude and frigid regions, developing new soil-stabilizing agents is crucial. While existing soil conditioners and products exist, most are designed for soil conditions in plains or temperate zones, and have limited adaptability to the unique environmental conditions of high-altitude and frigid regions. Therefore, there is an urgent need to develop an ecological soil-stabilizing agent suitable for soil improvement in high-altitude and frigid regions. This agent needs to possess multiple functions, such as mineral cementation, slow release of organic matter, and freeze-thaw cycle stability, to effectively improve soil quality and promote ecological restoration. Summary of the Invention

[0007] To solve the above problems, the present invention provides an ecological soil-fixing agent suitable for soil improvement in alpine areas and its application. The ecological soil-fixing agent and its application technology of the present invention are proposed precisely to meet the urgent needs of soil improvement in alpine areas. Through innovative formula design and preparation process, this soil-fixing agent can significantly improve the cohesion, anti-erosion ability and water holding capacity of the soil, while increasing the organic matter content of the soil, improving the microbial environment, and providing good soil conditions for plant growth. The implementation of the present invention is expected to provide strong technical support for ecological restoration and sustainable development in alpine areas.

[0008] In a first aspect, the present invention provides an ecological soil-stabilizing agent suitable for improving soil in alpine regions. The ecological soil-stabilizing agent suitable for improving soil in alpine regions comprises the following components, calculated by weight percentage:

[0009] Nano-silicate matrix 0.15-0.25wt‰, organic-mineral composite phase 98wt%, biological enhancement component 0.03wt‰ and plant response component 0.02wt‰.

[0010] Furthermore, the physical and chemical property parameters of the nano-silicate material include: pore diameter 50-200 nm, specific surface area 400-600 m3 / g.

[0011] Furthermore, the organic-mineral composite phase includes: 7 parts by weight of sheep manure + 3 parts by weight of nutrient soil.

[0012] Furthermore, the biological enhancement component is a biological bacteria mixture.

[0013] Furthermore, the plant response component includes: plant growth promoting materials (mixed materials such as 6-benzylaminopurine, indolebutyric acid, kinetin (KT), seaweed essence, etc.), and nutrient inducers (poly-oligosaccharide complexes).

[0014] In a second aspect, the present invention provides an application of an ecological soil-stabilizing agent suitable for soil improvement in alpine regions as described in any one of the first aspects in achieving physical improvement of soil and restoration of ecological functions in alpine regions.

[0015] The above technical solution provided by the embodiment of the present invention has at least the following advantages compared with the prior art:

[0016] The embodiments of the present invention provide an ecological soil-fixing agent suitable for soil improvement in alpine areas and its application. The present invention innovatively adopts a natural material compound system to construct an organic-inorganic-biological synergistic mechanism, simultaneously achieving soil physical improvement and ecological function restoration. Field experiments have verified that the vegetation coverage can be increased by 65-80%, providing key technical support for the construction of plateau ecological barriers, and effectively solving the degradation problems of sandy loam in alpine areas, such as poor water retention, low organic matter, and weak microbial activity. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0019] The present invention will be further described below in conjunction with specific examples. It should be understood that these examples are intended to illustrate the present invention only and are not intended to limit the scope of the invention. The experimental methods in the following examples where specific conditions are not specified are generally measured in accordance with national standards. If there are no corresponding national standards, then the methods are carried out in accordance with general international standards, conventional conditions, or the conditions recommended by the manufacturer.

[0020] Example 1

[0021] This example provides an ecological soil-stabilizing agent suitable for improving soil in alpine regions. The ecological soil-stabilizing agent suitable for improving soil in alpine regions comprises the following components, calculated by weight percentage:

[0022] The organic-mineral composite phase is 98wt%, the biological enhancement component is 0.03wt‰ and the plant response component is 0.02wt‰, and the balance is nano-silicate matrix.

[0023] The above-mentioned ecological soil-stabilizing agent suitable for soil improvement in alpine areas includes the following steps:

[0024] The components are stirred and mixed, and then crushed and passed through a 200-mesh sieve to obtain the ecological soil-fixing agent suitable for soil improvement in alpine areas.

[0025] Field tests have shown that the ecological soil-fixing agent obtained in this example can increase vegetation coverage by 80%, providing key technical support for the construction of plateau ecological barriers.

[0026] Field tests have shown that the ecological soil-fixing agent obtained in this example can increase vegetation coverage by 72%, providing key technical support for the construction of plateau ecological barriers.

[0027] In summary, the embodiments of the present invention provide an ecological soil-fixing agent suitable for soil improvement in alpine areas and its application. The present invention innovatively adopts a natural material compound system, constructs an organic-inorganic-biological synergistic mechanism, and simultaneously realizes soil physical improvement and ecological function restoration. Field experiments have verified that the vegetation coverage can be increased by 65-80%, providing key technical support for the construction of plateau ecological barriers, and effectively solving the degradation problems of sandy loam in alpine areas, such as poor water retention, low organic matter, and weak microbial activity.

[0028] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An ecological soil-stabilizing agent suitable for soil improvement in alpine areas, characterized in that: The ecological soil-stabilizing agent suitable for improving soil in alpine regions comprises the following components in percentage by weight: Nano-silicate matrix 0.15-0.25wt‰, organic-mineral composite phase 98wt%, biological enhancement component 0.03wt‰ and plant response component 0.02wt‰.

2. The ecological soil-stabilizing agent suitable for soil improvement in alpine areas according to claim 1, characterized in that: The physical and chemical property parameters of the nano-silicate material include: pore diameter of 50-200nm, specific surface area of 400-600m3 / g.

3. The ecological soil-stabilizing agent suitable for soil improvement in alpine areas according to claim 1, characterized in that: The organic-mineral composite phase includes: 7 parts by weight of sheep manure + 3 parts by weight of nutrient soil.

4. The ecological soil-stabilizing agent suitable for soil improvement in alpine regions according to claim 1, characterized in that: The biological enhancement component is a biological bacteria mixture.

5. The ecological soil-stabilizing agent suitable for soil improvement in alpine regions according to claim 1, characterized in that: The plant response components include plant growth promoting materials and nutrient inducers.

6. Use of the ecological soil-stabilizing agent suitable for soil improvement in alpine regions according to any one of claims 1 to 5 in achieving physical improvement and ecological function restoration of soil in alpine regions.