Severe pruning method of timber lateral branch

A heavy pruning and forest tree technology, applied in horticultural methods, botanical equipment and methods, forestry, etc., can solve problems such as insufficient sunlight, affecting tree growth, slow effect, etc., and achieve the effect of saving labor costs and facilitating manual pruning operations

Inactive Publication Date: 2008-11-12
杜宏彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this is only a light pruning, the pruning part is ≤ 1 / 3 of the branch length, and the potential for increasing yield is limited
Moreover, pruning should be started from the young forest period, and the effect will be slow; pruning needs to be carried out every year, and the lack of sunlight in the forest will affect the growth of trees to a certain extent.

Method used

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  • Severe pruning method of timber lateral branch
  • Severe pruning method of timber lateral branch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Severe pruning is carried out on S. superba timber trees.

[0027] 1. Tree general situation 15-year-old natural forest, canopy density 0.85, density 167 trees / mu, area 0.4 mu.

[0028] 2. Pruning At the beginning of April, carry out heavy pruning of the side branches of the forest. Except for the 1-2-year-old parts of the top of the tree, cut off an average of about 2 / 3 of the length of the branches at the front of all first-level side branches. After pruning, the side branches are left with a length of 25 to 30 cm, and the pruned part of the crown is in the shape of a garden cylinder.

[0029] 3. Thinning In the autumn of the year of pruning or the spring of the following year, 2 to 3 sprouts should be kept near the cut of each side branch, and the excess should be cut off.

[0030] 4. The second pruning After the first pruning, after 4 years, the trees will be closed again, and the second heavy pruning will be carried out in the same way.

[0031] 5. Tendency manag...

Embodiment 2

[0034] Heavy pruning of Metasequoia (M. glyptostroboides) street trees.

[0035] 1. General situation of trees The street trees are 9 years old, with a spacing of 2 meters and a height of 1.5 meters under the branches. The side branches between the plants have partially overlapped and shaded each other, but the lower branches have not yet died.

[0036] 2. Pruning In February, 20 trees in the street were heavily pruned, and the length of each side branch was cut more than 2 / 3 of the whole branch length. The length of side branches is 25-35cm. The 1-year-old part of the trunk tip is not pruned.

[0037] 3. Branch thinning is the same as embodiment one.

[0038] 4. Pruning for the second time is the same as in embodiment one.

[0039] 5. Nursing management is the same as embodiment one.

[0040] When the metasequoia street trees reach the age of 15, the average standing stock volume per plant increases by 19% compared with the control. Notes:

[0041] 1. Canopy light-rece...

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Abstract

The present invention relates to a method for severely disbranching lateral branches of timber trees, which is characterized in that the lateral branches (except one to two years old treetops) are severely disbranched, in particular, the average length of the sheared branches >= 2 / 3 of the average length of the lateral branches from the periphery vertical direction of tree crowns, when the trees reach close canopy state; The lateral branches will be disbranched again about four years after the first disbranching, when the trees reach close canopy state again, so the trees are severely disbranched many times until later stage of middle-age. The method of the present invention can further enlarge the intervals between the tree crowns, and improve light surroundings of forest land, and improve the lighting coefficient of the tree crowns and the photosynthesis efficiency, thereby effectively promoting the growth of trees.

Description

technical field [0001] The invention relates to a method for pruning side branches of trees, in particular to a method for heavy pruning of side branches for promoting the growth of the main trunk of timber forests and increasing the volume of standing trees per unit area. Background technique [0002] The said pruning in the patent of the present invention refers to cutting off a part of branches, and also includes thinning branches simultaneously. The purpose of pruning is to obtain a good tree structure to adjust light, distribute nutrients reasonably, balance tree vigor, and increase yield. Among them, the pruning of fruit trees and economic forests is to increase the output of fruits and other products; the pruning of timber forests is aimed at increasing the output of the trunk part—that is, the volume of timber. [0003] The intensity of tree pruning is divided into three levels: light pruning - the cut part ≤ 1 / 3 of the branch length; moderate pruning - the cut part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G23/02A01G7/00A01G1/00A01G17/00
Inventor 杜宏彬
Owner 杜宏彬
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