Desert planting structure and method for planting plant in desert

Abstract

The invention discloses a desert planting structure and a method for planting a plant in a desert. A planting pit is formed in the planting structure downwards from a desert surface; an impervious layer is arranged on one part of surface of the planting pit; a plant is planted in the planting pit and then desert soil is backfilled, and an earth surface windproof layer is arranged on the surface of the planting pit, wherein content of sandy soil of which the particle sizes are smaller than or equal to 0.075mm in the desert is greater than or equal to 50%; the impervious layer and the earth surface windproof layer are obtained through treatment of an anti-seepage reinforcement solution of microorganisms; the microorganisms are facultative anaerobe; the ratio of the permeability coefficients of the impervious layer to the desert free of the impervious layer is smaller than 5%; the earth surface windproof layer is not blown away under the condition that the maximal wind speed is 20m / s. The dependent microbial reaction process is a process existing in a soil ecological environment and the environment is not polluted; by adopting a microorganism-plant combined with sand control technology, the survival rate is higher than that of a pure plant planting method.

Description

technical field [0001] The invention relates to a planting structure and a planting method, in particular to a desert planting structure and a method for planting plants in the desert, belonging to the technical field of desert control. Background technique [0002] Desertification is a worldwide ecological environment problem. According to incomplete statistics, deserts and desertified land account for 55% of Africa, 19% of North and Central America, 10% of South America, 34% of Asia, 75% of Australia, and 2% of Europe. China's desertification land area is 2.622 million square kilometers, accounting for 27.4% of the country's land area. Nearly 400 million people are affected by desertification. At the same time, the annual direct economic loss caused by desertification hazards reaches 120 billion yuan. [0003] At present, scholars' research on desertification mainly focuses on sandy desertification. Commonly used means of controlling deserts include plant afforestation, ...

AI Technical Summary

Problems solved by technology

But the simple planting of trees is very difficult, the depth of plant burial is very large, the survival rate of plants is very low, the effect is slow, and a lot of manpower and material resources are required.

Sand barriers and grass grids are effective quickly, but the investment is relatively large, and it is difficult to use them on a large scale

There are also new methods of soil surface crusting technology, including chemical, physical and biological crusts. Pure physical and chemical crusts are very fragile and unstable, and chemical crusts also pollute the surrounding environment to a certain extent.

The biological crust is a large amount of mucus produced by the growth of bacteria, fungi, blue-green algae, etc. These bacteria with viscous appendages and viscous liquids form crusts through cross-linking with algal substances, but this method has certain environmental impacts. requirements, and the crust grows slowly and takes effect slowly

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