Rapid sand-stabilization, growth-promotion, growth-protection and water-saving ecological restoration method for desertification areas

Abstract

The invention discloses a rapid sand-stabilization, growth-promotion, growth-protection and water-saving ecological restoration method for desertification regions. For arid and semi-arid areas, particularly areas where the annual precipitation rate is lower than 150 mm, the dryness is smaller than 0.05, the wind speed is larger than 10 m / s, the daily temperature difference is large and sandstorm flow is severe, chemical sand-stabilization materials based on hydrophilic polyurethane resin are integrated with temperature sensing type water-absorbent resin, and sand-stabilization plant growth layers are formed in sand surface layers. Loose sand grains are solidified quickly by the chemical sand-stabilization materials, the sand-stabilization plant growth layers are formed in the sand surface layers, and the temperature sensing type water-absorbent resin is embedded in the sand-stabilization plant growth layers, so that the water-retaining property, the environmental moisture self-regulation property, the utilization rate and the drought resistance of the sand-stabilization plant growth layers are improved greatly, growth promotion and growth protection effects of plants are improved, the survival rate and the growth amount of vegetation in arid environments are increased, and chemical sand stabilization and biological sand stabilization are better integrated. The method has the characteristics of low cost, simplicity in construction, rapidness and high efficiency and is applicable to the remote desertification regions.

Description

technical field [0001] The present invention relates to an ecological restoration method in a desertified area, in particular to an ecological restoration method in a desertified area that rapidly fixes sand, promotes and preserves life, and effectively saves water. Fix the sandy soil, effectively use the water in the surrounding environment, realize the self-regulation of environmental water, improve water retention, growth promotion, and life preservation, and provide suitable water for vegetation growth, especially in the early stage of growth, thus greatly improving the growth environment of vegetation and improving the growth of vegetation. Growth effect, speed up the restoration of ecosystems in desertified areas. Background technique [0002] my country is one of the countries with the largest desertification land area and the most serious damage in the world. According to the estimation of the State Forestry Administration (1997), the desertification land in my count...

AI Technical Summary

Problems solved by technology

In the initial stage of plant growth, water needs to be continuously replenished to maintain plant survival and normal growth. However, in arid and semi-arid areas, especially in desertified areas where the precipitation is less than 150mm, the aridity is less than 0.05 (extremely arid area), and the wind speed is greater than 10m / s , the water evaporation is large, which will greatly reduce the comprehensive treatment effect of chemical sand fixation and biological sand fixation

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