Irrigation water retention tree-protecting method employing ground surface-type drought-resisting tree-planting black film funnel

Abstract

Around a survived tree root, a funnel-shaped slope taking the tree as a center of a circle is formed on the ground, a ring of ridge is built along the outer edge of the slope, the center of a black opaque high-strength ageing-resistant plastic film, which is the same as the slope in area, is cut with a hole, an opened gap is cut from the edge of the film to the center of the film, and the film is sleeved on the seedling, spread on the slope to cover the whole ridge and tightly buried and compacted; a lower opening is buried by sand; and a black film funnel taking the seedling as the center is formed. In rainy days, the film funnel can effectively collect rainwater; and in sunny days, the film funnel can effectively keep water in soil and improve the drought-resisting ability of soil. Furthermore, the black film funnel can prevent the harm of weed. The method is low in cost and high in effect.

Description

Technical field [0001] A surface type drought-resistant tree planting black film funnel relates to the technical field of forest tree cultivation, and specifically relates to a tree planting technology in which a tree planting ground is made into a funnel shape and covered with a black film. Background technique [0002] my country has a vast land area that belongs to the inland arid area, which is characterized by low rainfall and large evaporation, which makes plant growth very difficult. For example, the annual rainfall in Ningxia is 150-400mm, in Gansu it is 42-760mm, and in Xinjiang it is only 150mm. , And the annual rainfall in Inner Mongolia is only 50-450mm, and the annual evaporation in these areas is above 1000mm. Due to lack of water, artificial afforestation is very difficult and the survival rate is low. The invention and creation of a method that is simple and easy to implement, can fully accumulate and utilize natural rainfall, is very necessary for afforestation, ...

AI Technical Summary

Problems solved by technology

The first disadvantage is that the funnel is completely buried in the tree planting pit, the area of ​​the funnel mouth is small, and the amount of water collected is small, which cannot solve the problem in severe drought areas; the second is that the funnel is deeply buried in the soil, and the soil in the funnel must first absorb enough water. Excess water can flow into the roots along the funnel, and the water collection efficiency is low

The invention patent with the application number of 200420051553.1 "Planting trees with long-lasting film in arid areas" discloses a method of collecting and retaining water by wrapping tree roots in the shape of apples with plastic film in tree planting pits. There are shortcomings of small water collection surface and low water collection efficiency. At the same time, it does not take into account the fact that trees also consume a lot of water during the growth process. It is believed that the wrapped water will evaporate, condense, re-evaporate, and re-condense forever in the film. no loss it's wrong

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