A winter protection method for seedlings of sand-fixing plants in ultra-high altitude aeolian sandy land

Abstract

The invention provides a method for protecting sand binding plant seedlings on eolian deposit sand of ultrahigh altitude in the winter. Sand binding planting areas are divided into several areas, protection ditches are dug in the outer edges of the areas, and plants with thorns are planted in the sides, close to the areas, of the protection ditches; sand binding plants or annual-triennial sand binding plant seedlings are planted in the areas in late April, the planted plant seedlings are maintained in the winter within first three years, and in November-December, in the maintaining period, protection devices in a cylinder shape sleeve the seedlings from the upper portions, and the protection devices are filled with a substrate with the thickness of 5-20 cm. The substrate is a mixture of planting soil, smashed highland barley stems and cow dung; each protection device comprises an iron gauze part and a fixing part which are connected from top to bottom, and the fixing parts are insertedin soil to fix the protection device bodies. The protection devices comprise the iron gauze parts and the fixing parts which are connected from top to bottom, straw layers are arranged on the outer sides of the iron gauze parts, the fixing parts are fixing rods connected to the bottom ends of iron gauzes, and the protection devices can be recycled. The method has the advantages of preventing wind, resisting sand, preventing coldness, preserving moisture, and preventing damage caused by rats.

Description

technical field [0001] The invention relates to the technical field of plant maintenance in ultra-high-altitude aeolian sandy land, in particular to a winter protection method for seedlings of sand-fixing plants in ultra-high-altitude aeolian sandy land, which is suitable for sowing plant seedlings, and is also suitable for planting 1-3-year-old sand-fixing plants seedling. Background technique [0002] In the middle reaches of the Yajiang River in Tibet, there are a large number of aeolian sandlands and other desertified areas. In recent years, the use of plants to prevent wind and sand fixation has achieved good control effects. However, the wind and sand activity in these areas is very strong in winter, and the plant seedlings formed by sowing are easily damaged by the wind and sand flow in winter, causing the plants to fail to grow normally. The impact of wind and sand flow on plant seedlings includes not only wind mechanical damage, but also wind erosion, sand burial, ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a winter protection method for seedlings of sand-fixing plants in ultra-high-altitude aeolian sandy land, which is suitable for sowing plant seedlings, and is also suitable for planting seedlings of 1-3 year old sand-fixing plants, and solves the winter heat preservation and moisturizing effect of the protection methods in the prior art Poor, unable to prevent technical problems of rodent damage to plants and installations

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