CN105136190A - Determination method with optimized section area coefficient of angle gauge - Google Patents
Determination method with optimized section area coefficient of angle gauge Download PDFInfo
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- CN105136190A CN105136190A CN201510500457.3A CN201510500457A CN105136190A CN 105136190 A CN105136190 A CN 105136190A CN 201510500457 A CN201510500457 A CN 201510500457A CN 105136190 A CN105136190 A CN 105136190A
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- angle gauge
- section area
- angle
- basal area
- determination method
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Abstract
The invention provides a determination method with an optimized section area coefficient of an angle gauge. Through improving the section area coefficient of a routine angle gauge, the angle gauge with only two section area coefficients is designed. The two section area coefficients are respectively suitable for the forest with a large stand density and the forest with a small stand density, thereby controlling the number of trees which are counted by the angle gauge. The improved angle gauge is used for measuring the stand density and has only two section area coefficients. Convenient operation is realized. Furthermore the number of trees which are counted by the angle gauge is controlled to about ten. The determination method can effectively reduce workload and improves operation efficiency.
Description
One, technical field
The present invention relates to a kind of defining method optimizing angle gauge basal area factor, especially a kind of method of the improvement to angle gauge basal area factor.
Two, technical background
Angle gauge is a kind of to determine the inventory of stand instrument that visual angle is formed.Since invention, be just subject to the favor of forest workers.In standing forest, measure the few forest of figure place selectively according to set visual angle and just can efficiently measure relevant stand description factors.The method, after introducing China, is progressively promoted and generally adopts, and device surveyed by existing multiple angle gauge of good performance at present.This instrument can the forest parameters such as Fast Measurement stand biomass, accumulation, mean height, the density of crop, rank, footpath ratio.
The angle gauge coefflcient that traditional angle gauge is conventional is 0.5,1.0,2.0,4.0 4 kind, can meet the application in most standing forests.Generally, angle gauge coefflcient is larger, and count wooden number fewer, but precision is poor, vice versa.But in the forest zone that standing forest is intensive, the counting wood number using this several parameter to measure is a lot, brings very large workload, need improvement badly to its angle gauge coefflcient to forest workers.
Counting wood workload for traditional angle gauge assay method is large, the angle gauge coefflcient problem switching trouble, be not suitable for dense stand more, the present invention is by the improvement of angle to tradition rule coefficient, design novel angle gauge, improve the applicability that angle gauge uses, angle gauge determination techniques and method are improved further and expanded.
Three, summary of the invention
Many in order to count wooden number under improving traditional angle gauge coefflcient, the defect of many land occupation conditions standing forest can not be applicable to, the object of this invention is to provide a kind of defining method optimizing angle gauge basal area factor.
The object of the present invention is achieved like this:
1. optimize angle gauge basal area factor, design novel angle gauge.
This invention has the following advantages:
1. the angle gauge after improving only has two basal area factors, more convenient operation;
2. the angle gauge measurement after improving, controls counting wood, about 10 strains, effectively to reduce workload, increase work efficiency.
Four, accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the present invention is further described.
Fig. 1 is measuring principle figure of the present invention.
Five, embodiment:
Optimize a defining method for angle gauge basal area factor, difference is:
1) angle gauge after angle gauge basal area factor is optimized, it is characterized in that: connected and composed by angle gauge sheet and criterion, design criterion is long is 50cm, design angle gauge sheet has two raised items, angle gauge basal area factor is respectively 2.0,6.0, length is respectively 1.41cm, 2.45cm, and criterion is connected to the geometric center of angle gauge sheet, and the visual angle be formed centrally in criterion viewpoint and angle gauge sheet is respectively θ
1=1 ° 37 ' 14 ", θ
2=2 ° 48 ' 25 ".
Claims (1)
1. optimize the defining method of angle gauge basal area factor for one kind, it is characterized in that: by the improvement to conventional angle gauge basal area factor, design a kind of angle gauge only having two basal area factors, be applicable in the large and small standing forest of the density of crop respectively, control the quantity of angle gauge counting wood, for standing forest measurement, its concrete steps are as follows:
1) angle gauge after angle gauge basal area factor is optimized, it is characterized in that: connected and composed by angle gauge sheet and criterion, design criterion is long is 50cm, design angle gauge sheet has two raised items, angle gauge basal area factor is respectively 2.0,6.0, length is respectively 1.41cm, 2.45cm, and criterion is connected to the geometric center of angle gauge sheet, and the visual angle be formed centrally in criterion viewpoint and angle gauge sheet is respectively θ
1=1 ° 37 ' 14 ", θ
2=2 ° 48 ' 25 ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510500457.3A CN105136190A (en) | 2015-08-14 | 2015-08-14 | Determination method with optimized section area coefficient of angle gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510500457.3A CN105136190A (en) | 2015-08-14 | 2015-08-14 | Determination method with optimized section area coefficient of angle gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105136190A true CN105136190A (en) | 2015-12-09 |
Family
ID=54721626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510500457.3A Withdrawn CN105136190A (en) | 2015-08-14 | 2015-08-14 | Determination method with optimized section area coefficient of angle gauge |
Country Status (1)
| Country | Link |
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| CN (1) | CN105136190A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497117A (en) * | 1983-09-12 | 1985-02-05 | Wrobley A Ray | Slope compensating angle gauge |
| CN2070898U (en) * | 1990-03-31 | 1991-02-06 | 张浩军 | Multifunctional tree measurer |
| CN1570557A (en) * | 2004-03-19 | 2005-01-26 | 北京林业大学 | Electronic angle gauge tree surveying apparatus and automatic tree survey method |
| CN102466476A (en) * | 2010-11-12 | 2012-05-23 | 北京林业大学 | Tree testing super station and use method thereof |
| CN102749052A (en) * | 2012-04-20 | 2012-10-24 | 冯仲科 | Electronic tree measurement gun and forest measurement method thereof |
| CN104794324A (en) * | 2015-02-05 | 2015-07-22 | 北京林业大学 | Bucking method using 3D angle gauge for forest clear cutting by compartment |
-
2015
- 2015-08-14 CN CN201510500457.3A patent/CN105136190A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497117A (en) * | 1983-09-12 | 1985-02-05 | Wrobley A Ray | Slope compensating angle gauge |
| CN2070898U (en) * | 1990-03-31 | 1991-02-06 | 张浩军 | Multifunctional tree measurer |
| CN1570557A (en) * | 2004-03-19 | 2005-01-26 | 北京林业大学 | Electronic angle gauge tree surveying apparatus and automatic tree survey method |
| CN102466476A (en) * | 2010-11-12 | 2012-05-23 | 北京林业大学 | Tree testing super station and use method thereof |
| CN102749052A (en) * | 2012-04-20 | 2012-10-24 | 冯仲科 | Electronic tree measurement gun and forest measurement method thereof |
| CN104794324A (en) * | 2015-02-05 | 2015-07-22 | 北京林业大学 | Bucking method using 3D angle gauge for forest clear cutting by compartment |
Non-Patent Citations (1)
| Title |
|---|
| 佚名: ""角规测树"", 《百度文库》 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151209 |
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| WW01 | Invention patent application withdrawn after publication |