Standing volume automatic accurate measurement method independent of tree species

A wood and automatic technology, applied in the field of tree volume, can solve the problems of inability to quickly obtain the volume of a forest, affecting the accuracy of the volume of a single tree, and unable to observe the top of the tree, achieving simple measurement, large errors and lightening. The effect of workload

Inactive Publication Date: 2016-11-16
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

Trunk volume is one of the important data in forest surveys. The traditional survey method is limited by the surveyed tree species. It is necessary to establish a specific survey method according to the tree species. The operation is cumbersome and time-consuming, and it cannot achieve the purpose of quickly obtaining a forest volume.
In the forest survey, the measurement of tree height is very important, which directly affects the accuracy of the standing volume of a single tree, and it often happens that the top of the tree cannot be observed, which seriously affects the determination of the standing volume

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  • Standing volume automatic accurate measurement method independent of tree species

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Embodiment Construction

[0013] First, take any tree as the research object, use the MINI super station instrument as the measuring tool, aim the MINI super station instrument at the root of the trunk and measure the ground diameter d 0 , then aim at the trunk at 1.3m and measure the DBH d 1 , aiming at the diameter d of any place where the trunk can be observed but not the top of the tree 2 and the height h above the ground, and measure the tree height H, where, d 0 , d 1 , and d 2 in centimeters, h 2 , H is in meters. In the case of no occlusion, the top of the tree can be observed at this time, and the height H of the tree can be obtained. Using the digital model ①V=V 1 +V 2 +V 树梢 , where V, V 1 , V 2 , V 树梢 Unit is cubic meter, V 1 represents the bottom with d 0 is the radius, and the upper base is d 1 is the volume of a frustum with a diameter and a height of 1.3 meters; V 2 Indicates that the bottom is d 1 is the diameter, the upper base is d 2 is the diameter, and the height is ...

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Abstract

The invention discloses a method for automatic precise measurement of the volume of standing trees which has nothing to do with tree species. Taking the tree as the research object, using the MINI super station as the measuring tool, measure the root diameter d of the tree trunk successively 0 , diameter at breast height at 1.3 meters of the trunk d 1.3 , the trunk diameter d at any point of the trunk 2 and the height h of the floor of the premises 2 , and then accurately measure the volume of the tree, simplify the field measurement, reduce the intensity of the measurement work, and solve the problem of different methods for measuring the volume of different tree species.

Description

1. Technical field [0001] The invention relates to an automatic fine measurement method of standing tree volume which has nothing to do with tree species, in particular, the diameter at different heights of the trunk and the distance from the ground are measured by a MINI super station instrument, and then the volume of the tree is obtained. 2. Technical Background [0002] With the continuous development of science and technology, forest resource investigation equipment is becoming more and more portable and fast. Trunk volume is one of the important data in forest surveys. Traditional survey methods are limited by tree species, and specific survey methods need to be established according to tree species. The operation is cumbersome, time-consuming, and cannot achieve the purpose of quickly obtaining a forest volume. In the forest survey, the determination of tree height is very important, which directly affects the accuracy of the standing volume of a single tree. Sometime...

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Application Information

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IPC IPC(8): G01B21/00
CPCG01B21/00G01B5/0021G01B5/0035
Inventor 冯仲科刘牧杨立岩邱梓轩
Owner BEIJING FORESTRY UNIVERSITY
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