Environment-friendly method for drought-resistant afforestation on sandy land

Abstract

The invention discloses an environment-friendly method for drought-resistant afforestation on sandy land, which comprises the following steps: (1) excavating planting pits on sandy land and determining the concentration of the pits according to local rainfall; (2) laying a layer of degradable plastic film at the bottom of each pit, scattering a layer of crop straw on the film, and planting saplings; (3) covering degradable agricultural films after planting, covering sand on the films, and excavating an irrigation hole at the lowest concave position; (4) preparing diammonium phosphate water solution to be filled in an irrigation tank, and leading water to the irrigation hole through a water-leading pipe; and (5) in watering the saplings, inserting the outlet of an irrigation pipe into the irrigation hole, opening a water-control valve to irrigate, and controlling the flow rate at a certain speed.

Description

technical field [0001] The invention relates to an environment-friendly and drought-resistant afforestation method in sandy land. Background technique [0002] The sandy soil has large particles, is dry and barren, and rainfall is very easy to infiltrate and lose, resulting in a shortage of soil moisture. The shortage of soil moisture is the main factor restricting the growth of young forests, often resulting in low survival rate of afforestation, slow growth of trees, and natural regeneration of forest stands The capacity is reduced, and the benefits of economic forests are not high. It can be known from data review that in recent years, sandy land afforestation techniques popularized in various places, such as: sandy land afforestation technology in Dayulinkeng, sandy land afforestation and mulching technology, etc., are all simple trimming of sandy land to facilitate interception or retention of rainfall. Its technical content is low, and the following problems generally...

AI Technical Summary

Problems solved by technology

[0003] 1. The water conservation measures are not good. After the saplings are planted or during the tending period of the economic forest, the watering is mainly based on direct hole irrigation. Due to the lack of water conservation measures and the strong evaporation of water in the sandy land, the water is lost rapidly, which cannot meet the long-term water requirements of the saplings. Demand, not only cause a lot of water waste, the effect is not good

[0004] 2. Reasonable planting density is not arranged according to the amount of rainfall in the planting area, and the tree species are different, resulting in insufficient water supply, affecting tree growth, and resulting in weak natural regeneration ability

[0005] 3. The sandy land is extremely barren, and there is no timely supplement of nutrients during the growth period of young trees, resulting in poor growth

[0006] 4. In recent years, the sand-covered afforestation promoted in some places uses ordinary agricultural film, which has low degradability and often causes secondary pollution of sandy land.

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