Dune fixing method of ion-beam modified vegetation, absorbent and Ramaria linked cultured plant

Abstract

A method for fixating sand includes such steps as preparing the culture medium from soil, nutrients, water and water absorbent through mixing, loading it in the perforated bowls, choosing the seeds of drought-resistant herbaceous plant or suffurticosa plant, using ion beam to induce their mutagenesis, sowing them in said culture medium, and transplanting them along with the perforated bowls in the desert for fixating sand.

Description

technical field [0001] The invention relates to the field of ecological environment control in desertification areas, in particular to a method for cultivating plants in desert areas to prevent and fix sand. Background technique [0002] There are 1,689,000 square kilometers of desertified land in my country, and the annual rate of development is 1.32%. The annual direct loss due to desertification reaches 54 billion yuan, with an average of nearly 150 million yuan per day. Desertification has become a restrictive factor for my country's social and economic development. The commonly used sand control methods are roughly divided into chemical sand control, engineering sand control and biological sand control. [0003] When it comes to restoring and improving desertified sandy land or desert, people easily think of planting trees and grass. However, the annual precipitation in desert areas is low, the annual evaporation is large, the air is dry, and water is the most critica...

AI Technical Summary

Problems solved by technology

However, the annual precipitation in desert areas is low, the annual evaporation is large, the air is dry, and water is the most critical factor restricting the germination of sand-fixing plant seeds; desert areas are generally poor in nutrition and have few mineral nutrients, which affect plant growth; As a result of the dry environment, the seeds have a dense texture, water and oxygen are difficult to penetrate the seed coat, and it is difficult to emerge; because the desert area has precipitation in spring, but the summer is long, the light is strong, and the ultraviolet radiation is strong. If the seedlings are cultivated in spring, only Sunburned to death, or because its root system has not yet penetrated into the tidal sand layer, it can only die

Therefore, it is very difficult to cultivate plants in desert areas, and the survival rate is extremely low.

[0004] Vegetation sand fixation is still the most effective method of sand control in the future. The research and application of individual technologies are mainly carried out at home and abroad, such as the optimization of psammophyte communities, the screening of drought-tolerant psammophytes, water-absorbing resin-coated psammophyte seeds, water-absorbing resin Mixed seeding with psammophyte seeds, etc. These methods cannot solve the long-term water support and mineral nutrient sources required for psammophyte seed germination and plant growth

[0005] Therefore, there is no better way to control deserts, establish desert vegetation, and prevent and fix sand in the world.

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