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Method for constructing special-shaped tree hole based on wind rose map in tree planting area

A construction method and rose diagram technology, applied in planting methods, excavation/covering trenches, instruments, etc., can solve problems such as the influence of plant growth status, achieve the effects of reducing human intervention, reducing project cost, and saving support devices

Active Publication Date: 2020-03-27
NANJING FORESTRY UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional anti-lodging idea is to provide fixation through external settings to enhance the ability of plants to resist extreme loads, which greatly increases the cost of landscaping projects, and some support devices will have a negative impact on plant growth.

Method used

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  • Method for constructing special-shaped tree hole based on wind rose map in tree planting area
  • Method for constructing special-shaped tree hole based on wind rose map in tree planting area
  • Method for constructing special-shaped tree hole based on wind rose map in tree planting area

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Experimental program
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Effect test

Embodiment 1

[0055] Embodiment one, such as Figure 4 As shown, it is the wind direction rose diagram of Shanghai, which has relatively large wind direction frequencies at 292.5°, 315° and 337.5°. Since the three relatively large wind frequency directions are adjacent, the middle direction, namely 315°, is selected as the prevailing direction. Wind frequency direction θ max , and then remove the prevailing wind direction frequency f max and the larger prevailing wind direction frequency, the remaining wind direction frequencies are averaged to obtain the basic wind direction frequency f 0 , the distance between the apex of the isosceles triangle of the prevailing wind direction tree hole and the center of the base tree hole θ max =315°, such as Figure 5 Shown is the obtained tree hole configuration diagram in Shanghai.

Embodiment 2

[0056] Embodiment two, such as Figure 6 As shown, it is the wind direction rose diagram of Guangzhou, where 0°, 90° and 315° are the larger wind direction frequencies. Since the three larger wind frequency directions are not adjacent, the prevailing wind frequency direction θ max to three, and then remove the prevailing wind direction frequency f max and the larger prevailing wind direction frequency, the remaining wind direction frequencies are averaged to obtain the basic wind direction frequency f 0 , the distance between the apex of the isosceles triangle of the prevailing wind direction tree hole and the center of the base tree hole θ max =0°, 90°, 315°, such as Figure 7 Shown is the obtained tree hole configuration diagram in Guangzhou.

Embodiment 3

[0057] Embodiment three, Figure 8 As shown, it is the wind direction rose diagram of Hohhot, which has higher wind direction frequency at 22.5°, 45°, 225°, and 247.5°. Since 22.5° is adjacent to 45°, the frequency of wind direction is higher in these two directions 45° as the prevailing wind frequency direction θ max ;, 225° and 247.5° are also adjacent, in these two directions, 247.5° with a higher wind direction frequency is selected as the prevailing wind frequency direction θ max , after removing the wind direction frequencies in the above four directions, calculate the average value of the remaining wind direction ratings to obtain the basic wind direction frequency f 0 , the distance between the apex of the isosceles triangle of the prevailing wind direction tree hole and the center of the base tree hole θ max =45°, 247.5°, such as Figure 9 Shown is the obtained tree hole configuration map of Hohhot.

[0058] preferred, such as Figure 1-3 As shown, the special-...

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Abstract

The invention discloses a method for constructing a special-shaped tree hole based on a wind rose map in a tree planting area. The method comprises the following steps: S1, determining a prevailing wind direction frequency f<max> and a prevailing wind frequency direction theta<max> according to the wind rose map; S2, determining a basic wind direction frequency f<0>; S3, determining a shape and angle of a prevailing wind direction tree hole; S4, constructing a special-shaped tree hole mold according to a shape of a basic tree hole and the shape of the prevailing wind direction tree hole; and S5, constructing the special-shaped tree hole according to the special-shaped tree hole mold. The invention provides the method for constructing a special-shaped tree hole based on a wind rose map in atree planting area, auto-generative lodging resistance of large arbor can be effectively realized, proposed strict requirements for lodging resistance of plants due to the increasingly severe ecological environment are met, and the method is more in line with the concept of reducing human intervention in the ecological environment from the perspective of plant itself growth. The design concept saves a use amount of growth-coordination soil on the premise of meeting needs of plant growth elements, reduces engineering cost, saves plant support apparatuses, and has relatively strong engineeringapplication values in the field of greening.

Description

technical field [0001] The invention relates to the technical field of tree planting, in particular to a method for constructing a special-shaped tree hole based on a wind rose diagram of a tree planting area. Background technique [0002] With the frequent occurrence of extreme weather such as frequent typhoons, the ability of plants to resist lodging in landscaping projects is becoming more and more important. The traditional idea of ​​anti-lodging is to enhance the ability of plants to resist extreme loads by providing fixation through external settings, which greatly increases the cost of landscaping projects, and some support devices will cause adverse effects on plant growth. Therefore, it is necessary to break the traditional thinking and enhance the ability of plants to resist wind load spontaneously. [0003] The wind rose diagram is also called the wind direction frequency rose diagram. It is based on the percentage values ​​of various wind directions and wind spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C5/04G06Q50/26
CPCA01C5/04G06Q50/26
Inventor 张琪张浪张冬梅李晓娇刘晖
Owner NANJING FORESTRY UNIV
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