Nutrient modified sand body for plantation

Abstract

The invention discloses a nutrient modified sand body for plantation. The nutrient modified sand body for plantation is formed by stirring and mixing of a solution, sand and nutrients, wherein the solution has a caking property and an adhesion property, and is formed by dissolving water-soluble solid organic substances into water. The solution can conglutinate sand grains after the solution is stirred and mixed with the sand, the formed modified sand body is in a grain-pore structure. The solid substances can conglutinate the sand grains after the water is evaporated, and the solid substances can again be dissolved in the water to conglutinate the sand grains once the solid substances meet the water. The nutrient modified sand body can make the general sand body soil-like, and can fundamentally change the interaction relationship among the grains of the sand body, so the grain-pore structure with bonding force (cohesive force) is formed. During use of the sand body, the substances are hard to wash away because of the caking property and adhesion property thereof, so that the sand body has soil-like stability and moisture and the nutrient storing properties, can be directly added with the nutrients for plant growth, and is an ideal measure for desert control. At the same time, the modified sand body can be used as the means to utilize sand resources of sand beaches and sand lands for the plantation of plants.

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 trophic modified sand body with soil characteristics for planting. 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 desertification. ...

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 ...