Afforestation drip irrigation system and afforestation method for gobi desert regions

Abstract

The invention provides an afforestation drip irrigation system and an afforestation method for gobi desert regions. The afforestation drip irrigation system is applied by the aid of the afforestationmethod. The afforestation drip irrigation system comprises a head hub, a drip irrigation main pipe and drip irrigation branch pipes. The head hub, the drip irrigation main pipe and the drip irrigationbranch pipes are sequentially connected with one another, a plurality of drip irrigation capillary pipes which are arranged along tree rows are connected onto the drip irrigation branch pipes, the drip irrigation branch pipes further comprise water inlet pipes, the water inlet pipes are vertically embedded in tree pits, a pressure compensation type dripper is arranged on a certain position on each drip irrigation capillary pipe whenever the drip irrigation capillary pipe is in contact with the corresponding tree pit and is connected with a capillary pipe, the upper portions of the water inletpipes are exposed out of the ground, protective covers are arranged on the tops of the water inlet pipes with opening bottoms, capillary pipe holes are formed in the upper portions of the water inletpipes, and the capillary pipes extend into the water inlet pipes via the capillary pipe holes. The afforestation drip irrigation system and the afforestation method have the advantages that water andfertilizers can be directly delivered to the roots of trees by the water inlet pipes, accordingly, concealed drip irrigation can be implemented, evaporation from the ground can be reduced, drip irrigation water consumption can be decreased, and the survival rate of the trees can be greatly increased; breather holes are formed in the water inlet pipes, accordingly, the root systems of the trees can conveniently breathe, and the survival rate further can be increased.

Description

Technical field [0001] The invention belongs to the technical field of Gobi desert ecological restoration, and relates to a tree planting afforestation drip irrigation system and a tree planting afforestation method in the Gobi desert area. Background technique [0002] The Gobi Desert in my country has a large area and is mainly distributed in the western region. Gansu Province has 100 million mu of Gobi, 180 million mu of sandy land, and 4.8 million mu of saline-alkali land. The desertified land accounts for 28.6% of the province's land area, mainly in the Hexi region. The large area of ​​desertified land in the Gobi is one of the biggest problems in ecological construction. How to turn the Gobi Desert into an oasis has always been a dream of people. The Gobi Desert has very little rainfall, high evaporation, less water, less soil, and more yellow sand. The soil needs to be pulled from far away for sand replacement. The cost is high, the survival rate is low, and tree planting ...

AI Technical Summary

Problems solved by technology

The Gobi desert area has very little rainfall, a large amount of evaporation, less water, less soil and more yellow sand. It is necessary to pull soil from far away to replace sand. The cost is high and the survival rate is low. It is difficult to plant trees

In recent years, the application of water and fertilizer integrated drip irrigation technology has been promoted, and the survival rate has been significantly improved. However, the one-time investment in tree planting and the later management and maintenance costs are still high, and the water and fertilizer utilization rate needs to be further improved.

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