Tree height measuring triangular rule and application method thereof

A triangular ruler and tree height technology, applied in the direction of measuring devices, adopting mechanical devices, mechanical measuring devices, etc., to achieve the effect of reducing workload, simple tools and convenient operation

Inactive Publication Date: 2011-10-05
BEIJING FORESTRY UNIVERSITY
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  • Abstract
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Problems solved by technology

[0007] In order to overcome the many troubles that the existing tree height measurement method inevitably brings in the forest resources monitoring process and improve the observation accuracy and work efficiency, the purpose of the presen

Method used

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  • Tree height measuring triangular rule and application method thereof

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specific Embodiment approach

[0017] The triangular ruler for measuring tree height is composed of a measuring ruler and two measuring ropes. The length of the measuring ruler is 30CM. The zero marks of the two measuring ropes are respectively connected to the two ends of the measuring ruler. CM position. In the tree height measurement triangle ruler, the measuring ruler and the measuring rope form two tree height measuring triangles. The measuring ruler and two measuring ropes with a length of 30cm form the first tree height measuring triangle. The angle α between the two measuring ropes is 60 degrees. ; Measuring ruler and two measuring ropes with a length of 51.96CM form the second tree height measurement triangle, and the included angle β of the two measuring ropes is 30 degrees. The specific implementation is as follows:

[0018] In the complex terrain conditions of the forest area, if there are steep slopes or ravines in the survey area and the horizontal distance cannot be measured, as shown in the...

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Abstract

The invention discloses a tree height measuring triangular rule and an application method thereof. The tree height measuring triangular rule comprises a measuring ruler and two measuring ropes, wherein the length of the measuring ruler is 30 cm, the zero graduation positions of the two measuring ropes connect the two ends of the measuring ruler respectively, and a 30 cm position and a 51.96 cm position are respectively marked on the measuring ropes. The technical scheme of the application method is as follows: by using two tree height measuring triangles formed by the measuring ruler and the two measuring ropes in the tree height measuring triangular rule, selecting two observation points and aiming the visual line along the measuring ropes at treetop and tree bottom respectively, and measuring the tree height through measuring the horizontal distance of the two observation points without measuring the horizontal distance from observation points to the tree. Thus the disadvantage of unable measurement of the horizontal distance from the observation points to the tree in an observation area is overcome. In the invention, the measuring tool is simple and the operation is convenient. Thus the workload is minimized and the work efficiency is raised.

Description

1. Technical field [0001] The invention relates to a method for measuring tree height in forest resource monitoring, in particular to a tree height measuring triangle ruler and a using method thereof. 2. Technical background [0002] In the traditional forest resource monitoring, the measurement of tree height has always been a difficult problem to solve. Usually, the altimeter is used to measure the height, the visual estimation method or the combination of the compass, theodolite, tape measure and ruler, and the triangular elevation method. For the measurement of tree height, the above methods all have their disadvantages: [0003] ① In the forest area, when using the compass, theodolite, tape measure and ruler to measure the height of the tree using the triangular elevation method, it is difficult to measure the horizontal distance due to the constraints of terrain, slope, stand density and other factors, and the calculation is relatively difficult. Complicated, which li...

Claims

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Application Information

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IPC IPC(8): G01B5/02
Inventor 冯仲科姚山邓欧
Owner BEIJING FORESTRY UNIVERSITY
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