A method of desert control

Abstract

The invention provides a desert control method. The desert control method comprises the following steps of: after flattening a sand land in a desert area to be treated, taking earthworks with the height of less than or equal to 3m and forming a square-structure basin; constructing windproof dams around the square-structure basin; paving anti-curing layers on the surfaces of the windproof dams and the square-structure basin, wherein the anti-curing layer comprises an ash-mixed sand layer, a first modified soil layer, a paper material layer and a second modified soil layer; and after paving, spraying nutritive water on the anti-curing layers, wherein the ash-mixed sand layer comprises the following components in parts by weight: 1-12 parts of plant ash and 100 parts of aeolian sandy soil; the first modified soil layer and the second modified soil layer and the second modified soil layer comprise the following components in parts by weight: 2-8 parts of cement, 100 parts of aeolian sandy soil and 3.1-13.2 parts of plant ash; and planting green plants on the anti-curing layers sprayed with the nutritive water. The desert control method provided by the invention is simple in process and good in practicability, can realize large-scale engineered and mechanized construction and is wide in application range.

Description

technical field [0001] The invention specifically relates to a desert control method. Background technique [0002] Deserts, sandy lands, and land desertification are related to more than 100 countries around the world, covering about 1 / 3 of the land area. They are land resources and space resources that need to be developed and utilized urgently. At the same time, deserts, as the birthplace of wind and sand hazards, continue to spread to the surrounding area and erode farmland. , villages, desertification of a large amount of land, resulting in environmental degradation and ecological migration, seriously squeezing the living space of human beings, and the hazards of wind and sand affect nearly 40% of the world's land area. ecological environment problems. [0003] There are currently two main sand control methods: [0004] 1. Sand-fixing agent [0005] The sand-fixing agent is based on natural or synthetic polymer materials, sprays the surface of the sand body in the fo...

AI Technical Summary

Problems solved by technology

Although this method can gradually improve soil quality and ecological environment under long-term maintenance, it can only be applied in areas with good water and soil conditions, and is not suitable for large-scale drought and sandy areas lacking water resources. Ecological fragility still exists, it cannot bear the further production and life of human beings, it is difficult to generate direct economic benefits, and it may also affect people's enthusiasm for sand control

[0008] In addition, the sand-fixing and water-storage technologies currently used in sand control mostly use spray film, liquid mulch film or direct planting of green belts. These methods either have the problems of short utilization time and difficult maintenance, or are slow in effect and long in cycle. Directly prevent soil moisture from evaporating, losing and sand-fixing

[0009] Plant ash is the ash residue after burning plants. It is viscous and has a pH of 11-12. It is rich in all the elements needed for vegetation growth, and contains about 11% lignin. It has a wide range of sources, mainly from biological power plants. At present, most The plant ash is not effectively utilized and is treated as a particle size filler for landfill, resulting in a great waste of energy

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