Optimized calculation method for forest stand selective cutting amount based on electronic tree measurement gun

A technology of optimization calculation and tree measurement gun, which is applied in the field of optimization calculation of forest stand selection and cutting amount, which can solve the problems of low efficiency, long cycle and poor accuracy, and achieve the effect of expanding business field, perfect integration and high reliability integration.

Inactive Publication Date: 2014-10-22
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

In order to overcome the shortcomings of poor accuracy, low efficiency, and long cycle when collecting data, and realize accurate measurement of stand data, this method adopts an optimal calculation method for stand selective cutting based on electronic tree measuring gun

Method used

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  • Optimized calculation method for forest stand selective cutting amount based on electronic tree measurement gun
  • Optimized calculation method for forest stand selective cutting amount based on electronic tree measurement gun
  • Optimized calculation method for forest stand selective cutting amount based on electronic tree measurement gun

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Embodiment Construction

[0015] The optimal calculation method of stand selective felling amount based on electronic tree measuring gun is different from the existing method, specifically in:

[0016] (1) Observing and counting trees, using an electronic tree measuring gun, according to the stand conditions and survey specifications, one of the four types of angle gauge coefficient Fg=0.5, 1, 2, 4 can be selected, and then according to the function of the tree measuring gun, tree height H j , DBH D j , number of plants N j , volume V j . in During the observation process, select the count value by pressing the key, and count automatically. Get the whole number of plants through the number of plants Nj in different sites: N 1(0) +N 2(0) +…+N m(0) =N.

[0017] (2) Establish a mathematical model, N = a 1 d ...

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Abstract

The invention discloses an optimized calculation method for forest stand selective cutting amount based on an electronic tree measurement gun. The method is characterized in that trees are observed via the electronic tree measurement gun so that data of diameter at breast height of the trees, height of the trees and volume of the trees are acquired. Current stand volume and stand volume after a period of time in the future are acquired via a specific algorithm, and selective cutting is performed on increment of latter stand volume according to a certain mode.

Description

1. Technical field [0001] The invention relates to an optimal calculation method of stand selective felling amount, in particular to an optimal calculation method of stand selective felling amount based on an electronic tree measuring gun. 2. Technical background [0002] In order to reveal the law of forest growth and succession and scientific management, management and utilization of forests, it is necessary to divide large forests into several forest sections with the same internal characteristics and obvious differences from the surrounding areas according to their own characteristics and management needs. A complex that occupies a certain area and has a certain number of trees, shrubs and ground cover is called a forest stand. Forest stand is the smallest geographical unit of forest division. Forests growing in vast areas are composed of complex and diverse forests, which can be divided into artificial forests and natural forests according to origin; pure forests and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04
Inventor 冯仲科黄晓东
Owner BEIJING FORESTRY UNIVERSITY
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