Method for measuring and computing forest stock volume parameter

A forest and parameter technology, applied in the field of measurement and calculation of forest accumulation parameters, can solve the problems of undiscovered data reporting and instrument market, and achieve the effects of convenient acquisition, low labor intensity and more information content
CN103616014AInactive Publication Date: 2014-03-05ZHEJIANG FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG FORESTRY UNIVERSITY
Publication Date
2014-03-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for measuring and computing a forest stock volume parameter, which belongs to a method for measuring forest land and computing a forest stock volume parameter by a panoramic-scanning laser distance measuring sensor. The method comprises the following seven steps: firstly, scanning forest stands by the laser distance measuring sensor; secondly, acquiring diameters at breast height; thirdly, computing the basal area per hectare of the diameters at breast height; fourthly, computing the average diameter at breast height; fifthly, computing the density of trunks; sixthly, computing vegetation cover rates at different heights; and seventhly, acquiring the coordinate pattern of forest tree distribution space. Since a non-contact mode is adopted for measuring and computing the forest stock volume parameter, the method is rapid, convenient and accurate, and is high in efficiency, low in labor intensity and capable of obtaining the vegetation cover rates at different heights in the vertical direction, which can not be provided by an existing method; the method can be used for estimating the forest stock volume and the forest biomass as being combined with aerial remote sensing and space remote sensing information.
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Description

【Technical field】

[0001] The invention belongs to a method for measuring forest land and calculating forest accumulation parameters with a panoramic scanning laser ranging sensor. 【Background technique】

[0002] For the determination of forest accumulation parameters, although the well-known and public angle gauge measurement method is labor-intensive and inefficient, the angle gauge principle still maintains its technical advantages. Corner gauges have undergone many improvements over the past half century, but the fundamentals remain the same.

[0003] For the estimation of regional forest stock and biomass, ground sampling or remote sensing combined with ground sampling are generally used. Remote sensing methods also require ground survey data in conjunction with modeling. There are two main methods of ground survey: sample plot survey and angle gauge survey. The former needs to measure each tree, which is labor-intensive and time-consuming. The latter is measured aro...

Claims

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