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Technology for measuring and calculating tree ages

A tree and annual ring technology, applied in the field of tree age calculation technology, can solve the problems of low efficiency, achieve simple and fast calculation, large error, and non-destructive effects

Active Publication Date: 2013-09-04
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

[0004] In order to overcome the shortcomings of traditional methods such as strong destructiveness and low efficiency of data acquisition, improve efficiency and accuracy, and realize accurate measurement without felling and standing trees, the present invention provides a tree age measurement technology, which is characterized in that: through field collection The diameter at breast height, annual rings and growth conditions (slope, aspect, altitude, soil thickness) information of felled trees, establish a mathematical model, and use the measured diameter at breast height, altitude, slope, aspect, and soil thickness through the inversion model information to calculate the age of the tree

Method used

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  • Technology for measuring and calculating tree ages
  • Technology for measuring and calculating tree ages
  • Technology for measuring and calculating tree ages

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Embodiment Construction

[0012] A method for calculating the age of trees based on mathematical models is different from existing methods, specifically:

[0013] 1. By collecting the diameter D of felled wood i , annual ring t i And its growth conditions (slope δ, slope aspect A, altitude H, soil thickness m) information, establish a mathematical model. The established mathematical model is: T=a·D b ,in a = ( tan ( δ + 1 × 10 - 5 ) ) a 1 · ( cos ( A + 1 × 10 ...

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Abstract

The invention discloses a technology for measuring and calculating tree ages. According to the technology, a mathematical model is established for the tree ages by acquiring the information of slope, exposure, elevation, thickness of soil, breast-high diameter and the like under standing tree growing conditions so as to acquire the tree ages. A mathematical inversion model is established by collecting the information of breast-high diameter, annual ring and growing conditions (slope, exposure, elevation, thickness of soil) of felled trees in the field, and then the tree ages can be calculated through the mathematical model by using the information of breast-high diameter, elevation, slope, exposure, thickness of soil and the like, wherein the information is measured and calculated in the field. The technology for measuring and calculating the tree ages greatly improves accuracy in calculating the tree ages and overcomes the shortcoming that the existing methods of hewing down analytic trees, turning intake growth cones and the like are large in destructiveness, tedious in process and the like.

Description

1. Technical field [0001] The invention relates to a method for obtaining the age of a tree by establishing a quantitative model related to the age of the tree under the growth condition of the standing tree; especially information such as slope, aspect, altitude, soil thickness and diameter at breast height under the growth condition of the standing tree, to establish and The mathematical model of tree age, the method of obtaining tree age. 2. Technical background [0002] The traditional tree age calculation technology is backward, based on manual operations such as felling trees to check the age of trees, and turning growth cones. The cycle is long, destructive, low in efficiency, and the effect is not good. monitoring needs of the ecological environment. There is still no breakthrough in electronic instruments, and modern tools such as CT scanning and mechanical exploration are used to accurately measure certain indicators, but the problem is far from being solved to a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 冯仲科巩垠熙高祥
Owner BEIJING FORESTRY UNIVERSITY
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