Method for increasing big tree transplanting survival rate using flexible porous tube

Abstract

The invention discloses a method for improving survival rate of transplanted big trees by a soft pervious pipe, which comprises the following steps: before a big tree is planted, foundation of a ready plant hole is dug much deeper; a soft pervious pipe is placed on the bottom of the plant hole; graded broken stone is spread on the side and the top of the soft pervious pipe, and river sand is placed outside the broken stones; planting soil with fertility is placed on the river sand, and the big tree is transplanted on the plant soil according to the standards and requirements for transplanting big trees. An outlet of the soft pervious pipe is networked with an urban rainwater drainage system or is communicated with a river or a low-lying land the highest water level of which in flood season is below the outlet of a drain pipe. The method can quickly and smoothly discharge excess water into the pervious pipe and out of the plant soil, which causes the plant hole and soil around the hole can obtain the field water holding capacity required by the tree in a very short time, thus greatly improving the survival rate of the transplanted tree and the growth potential thereof.

Description

technical field [0001] The invention relates to a method for improving the survival rate of large tree transplantation, which belongs to the tree transplanting method in landscaping and related industries. Background technique [0002] With the rapid development of urban greening construction, people's requirements for the quality of urban landscape green space construction are also getting higher and higher. Many cities have successively proposed and implemented the work of "introducing big trees into cities" in response to the unique functions of big trees on urban landscape green spaces. When big trees enter the city, the effect is immediate. It is a shortcut for the rapid development of urban green space, and promotes the early formation of an urban ecological environment in which man and nature are in harmony with each other. [0003] After a large tree is transplanted, the crown part is rarely pruned. Therefore, in order to ensure the survival rate of large tree tran...

AI Technical Summary

Problems solved by technology

When the planting site is low-lying and waterlogged, the soil drainage is poor or too wet, the transplanted tree will be waterlogged, but at this time the transplanted tree will show water shortage, which will eventually lead to the death of the transplanted tree. The main characteristics are: ( 1) The roots of the dead trees dug out have a strong sludge odor, (2) the roots are black and their skins are rotten, (3) if there are new roots, their skins turn yellow and black, use Peeling after hand rubbing

Therefore, when the big tree is transplanted, it is easy for the horticultural workers to see the "water shortage" phenomenon and water it, causing the big tree to often die due to waterlogging caused by atmospheric precipitation and artificial irrigation.

[0005] Previously, people have also taken certain methods to overcome the above problems, such as burying the water pumping pipe (generally adopting a plastic pipe with a certain length and a certain thickness when the big tree is planted) and then manually pumping water in a timely manner. However, it can't solve the soil (such as the subsidence soil in the south) to achieve the ideal field water holding capacity within a certain period of time; in addition, it is easy to be damaged by man-made, which brings trouble to management; moreover, due to its pipe head The part is exposed to the outside, which also has a certain impact on the landscape effect

Even so, it is still a temporary solution, not a permanent cure. Generally, the mortality rate due to flooding is still 15%-20%.

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