Modified sandy soil with plant seeds

Abstract

The invention discloses modified sandy soil with plant seeds, formed by mixing solution with a cohesive property and an adhesion property and sandy soil, 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 sandy soil particles to form the modified sandy soil provided with a particle pore structure; after the moisture is evaporated, the water-soluble solid state organic substance can bond the sandy soil particles, and can be dissolved into the water again to form the solution with the cohesive property and the adhesion property to bond the sandy soil particles when in contact with the water. The modified sandy soil enables the general sandy soil to be in 'pedogenesis', and forms the particle pore structure with binding force (cohesive force); when the modified sandy soil is in the use process, substance is difficult to run off due to the characteristics of the cohesive property and the adhesion property; the sandy soil 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 sandy soil is an ideal measure to quickly govern desert; meanwhile the modified sandy soil 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 sandy soil resources and control of land desertification, in particular to a modified sandy soil which has soil properties and can directly grow plants. Background technique [0002] Sandy soil refers to soil with a lot of sand. The sandy soil is loose and has good water permeability and air permeability, but its ability to retain water and fertilizer is poor, so it needs to be improved during cultivation. Sandy soil is not suitable for the growth of certain plants. When the sand content is high, it is similar to the surface sand or sandy soil in deserts or desertified areas. In addition to natural existence, sandy soil is mostly formed by land desertification. [0003] (1) Desertification and its hazards [0004] Desertification is one of the most serious major environmental problems facing mankind today. [0005] The land area of ​​the world is 162 million square kilometers, accounting for 30.3...

AI Technical Summary

Problems solved by technology

However, emulsified asphalt still exists in 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

[0022] (3) Fundamental difficulties and existing problems in desertification control

However, the particles in the sand are discrete particles, and the fundamental difficulty in governance is that the particles in the sand 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 sand and desert control methods are far from fundamentally solving the two problems of easy movement of particles in sand and difficulty in water retention and storage of nutrients.

[0024] The existing sand control method is the same as the desert control method, mainly focusing on sand fixation. Regardless of the engineering (mechanical) measures, plant measures and chemical measures, it does not start from improving the properties of the sand itself, but only avoids the movement of the sand to cause damage. Therefore, from the point of view of its methods and methods, it is still a passive sand control, which can overcome the problem to a certain extent or in a short period of time, but it is difficult to fundamentally solve the problems of sandy soil that is difficult to retain water and store nutrients. There is still a long way to go for the "sand soil to oasis"

[0025] ①Engineering (mechanical) measures can temporarily change the physical form (natural existence mode) of deserts and sandy soils. They are temporary sand prevention measures. For the hazards of quicksand and sandy soils, they only play the role of sand-fixing and "curing the surface". The desert is tamed for a short time and cannot achieve the effect of "curing the root cause". After a long time, the desert will still return to its original appearance

[0030] Plant sand fixation uses the upper part of the plant to block sand and sand, and uses the root of the plant 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 and sand itself are not conducive to plant growth, such as desert instability. In addition, frequent wind and sand movement, barren desert, insufficient water and difficulty in water retention and temperature adjustment all have adverse effects on plants.

[0031] 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