Modified sand body with plant seeds

Abstract

The invention discloses a modified sand body with plant seeds, formed by mixing solution with a cohesive property and an adhesion property and sand, wherein the solution is formed by the dissolving of water-soluble solid state organic substance into water, and adding with the plant seeds; after being mixed with the sand, the solution can bond sand particles to form the modified sand body provided with a particle pore structure; after the moisture is evaporated, the water-soluble solid state organic substance can bond the sand particles, and can be dissolved into the water again to form the solution with the cohesive property and the adhesion property to bond the sand particles when in contact with the water. The modified sand body enables the general sand body to be in 'pedogenesis', and forms the particle pore structure with binding force (cohesive force); when the modified sand body is in the use process, substance is difficult to run off due to the characteristics of the cohesive property and the adhesion property; the sand body is enabled to have same properties of the stability and the storing of the moisture and the nutrient as the property of the soil, the planting can be carried out at any time by the direct adding of the plant seeds, and the modified sand body is an ideal measure to quickly govern desert; meanwhile the modified sand body can also be taken as a means to utilize other sand resources to carry out plant planting.

Description

technical field [0001] The invention relates to the fields of utilization of sand resources and control of deserts and desertification, in particular to a modified sand body which has soil properties and can directly grow plants. Background technique [0002] (1) Desert, desertification and its hazards [0003] Deserts and desertification are the most serious major environmental problems facing mankind today. [0004] The land area of ​​the world is 162 million square kilometers, accounting for 30.3% of the total earth area, of which about 1 / 3 (48 million square kilometers) is arid and semi-arid desert areas, and it is expanding at a rate of 40,000 to 60,000 square kilometers every year. . The desert area has accounted for 10% of the total land area, and 43% of the land is facing the threat of desertification. [0005] my country is one of the countries with the most deserts in the world, and it is also one of the countries seriously endangered by sandstorms and desertifi...

AI Technical Summary

Problems solved by technology

However, emulsified asphalt also exists during use because the asphaltene and resin in the asphalt are easily destroyed by oxygen, light, heat, moisture and microorganisms in the atmosphere, and the oil content decreases.

The gradual intensification of this change will lead to the deterioration of asphalt performance, such as the increase of softening point, the decrease of penetration, and the decrease of elongation, so that the united layer gradually becomes brittle, hard, loses plasticity, ages, and eventually cracks and dies. Destroyed by wind erosion, losing sand-fixing effect

[0021] (3) Fundamental difficulties and existing problems in desert and desertification control

However, the sand bodies in the desert are discrete particles, and the fundamental difficulty in desert governance is that the sand bodies in the desert are easy to move, difficult to retain water and store nutrients

Based on the current sand control measures, it is not difficult to find that the existing desert control methods are far from fundamentally solving the two problems of easy movement of the desert and difficulty in water retention and storage of nutrients.

[0023] The existing desert control method is mainly based on sand fixation. Regardless of the engineering (mechanical) measures, plant measures and chemical measures, it does not start from improving the properties of the desert sand body itself, but only avoids the harm caused by the movement of sand. Therefore From the point of view of its methods and methods, it is still a passive sand control, which can overcome the fluidity problem of the desert to a certain extent or in a short period of time, but it is difficult to fundamentally solve the difficult problem of water conservation and storage in the desert, and it is difficult to store nutrients. The hoped "desert into oasis" is still far away

[0024] ①Engineering (mechanical) measures can temporarily change the physical form of desert existence (natural existence mode), which is a temporary sand prevention measure. For the hazards of quicksand, it only plays the role of sand-fixing and "curing the surface", and the desert is temporarily tamed , cannot achieve the effect of "curing the root cause", and after a long time, the desert will still return to its original appearance

[0029] Plant sand-fixation uses the upper parts of plants to block and block sand, and uses the roots of plants to fix sand, which can change the microclimate and micro-soil environment to a certain extent. However, the fundamental difficulty of plant sand-fixation is that the desert itself is not conducive to plant growth. For example, the desert is unstable and Frequent wind and sand movement, barren desert, insufficient water and difficulty in water retention and temperature regulation all have adverse effects on plants

[0030] Wind and sand movement can cause plants to be harmed by blowing erosion, sand burial and sand cutting. The wind and sand movement can be solved by engineering protection measures and chemical sand fixation. However, the fundamental problem of insufficient water in the desert and difficulty in water retention limits the applicability of traditional plant sand fixation. extremely restrictive