CN106056461A - Method for measuring and calculating forest stand mingling degree by adopting seven-tree method - Google Patents
Method for measuring and calculating forest stand mingling degree by adopting seven-tree method Download PDFInfo
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- CN106056461A CN106056461A CN201610387418.1A CN201610387418A CN106056461A CN 106056461 A CN106056461 A CN 106056461A CN 201610387418 A CN201610387418 A CN 201610387418A CN 106056461 A CN106056461 A CN 106056461A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002023 wood Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000003556 assay Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Forestry; Mining
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Abstract
The invention discloses a method for measuring and calculating a forest stand mingling degree by adopting a seven-tree method. The method comprises the steps of selecting 7 trees including a center tree and 6 sample trees which are nearest to the center tree from a forest stand to be measured, and measuring and calculating a mingling degree M of the forest stand to be measured through comparing consistency of the selected sample tree species. The method does not need to consider position distribution of the trees, reduces fieldwork measurement workload, and increases measurement precision of forest stand mingling degree.
Description
One, technical field
The present invention relates to a kind of method measuring forest standing forest Mixed modes, particularly a kind of seven tree method measuring and calculating standing forests are mixed to be handed over
The method of degree.
Two, technical background
Forest space structure is the key character of forest community, reflects the spatial relationship i.e. forest of species in forest community
Distribution Pattern and attribute arrangement mode spatially.Standing forest Mixed modes is the species spatial isolation journey of reflection mixed forest
Degree, is the important indicator weighing forest community structural complexity, so research forest mixture degree is existing to understanding forest structure
Shape important in inhibiting.The assay method of traditional standing forest Mixed modes uses sample-plot survey or 5 tree methods, although the former precision is relatively
Height, but workload is big, cost is high, the latter is under-represented and make certainty of measurement be restricted due to the place that selects.The present invention
Measure standing forest Mixed modes by seven tree methods, improve speed and precision that forest standing forest Mixed modes measures, be effectively improved woods
Divide determination techniques and the method for Mixed modes.
Three, summary of the invention
In order to overcome a lot of troubles and error inevitably brought in tradition forest standing forest Mixed modes assay method, this
The purpose of invention is to provide a kind of method of seven tree methods measuring and calculating standing forest Mixed modes.
The object of the present invention is achieved like this:
Selection Center tree and the nearest sample trees of 6 distance center trees in standing forest to be measured, 7 trees altogether, by comparing choosing
The concordance of random sample wood species, calculates the Mixed modes M of standing forest to be measured, specifically comprises the following steps that
1) setting centered by selected suitable sample trees in standing forest to be measured, be designated as No. 0 tree, the selection of No. 0 tree should be tried one's best
Avoiding border, choose 6 closest with center tree sample trees, note sample trees northernmost are No. 1, turn clockwise and are marked,
It is respectively 1,2,3,4,5, No. 6 trees；
2) successively by i (i=1,2 ..., 6) a number tree carries out seeds with No. 0 tree and compares, obtaining the identical quantity of seeds is n1
(n1≤6)；
3) successively with i+1 tree, No. i tree being carried out seeds to compare, obtaining the identical quantity of seeds is n2(n2≤ 6), wherein,
I=1,2 ..., 6, and as i=6, i+1=1；
4) digital-to-analogue is utilizedIt is calculated the standing forest Mixed modes M of wood on the basis of No. 0 tree.
This invention has the advantage that
1. seven tree methods that the present invention uses measure standing forest Mixed modes, closest 6 trees, nothing around Zhi Xu selected center tree
The position distribution of trees need to be considered, can be used to replace tradition standing forest Mixed modes measuring method；
2. seven tree methods that the present invention uses measure standing forest Mixed modes, decrease field operation and measure workload, improve measurement
Precision.
Four, accompanying drawing explanation
The present invention is further described with example below in conjunction with the accompanying drawings.
Fig. 1 is seven tree method measuring and calculating standing forest Mixed modes schematic diagrams.
Five, detailed description of the invention:
A kind of method of seven tree method measuring and calculating standing forest Mixed modes unlike the prior art, has made significant improvement, specifically:
1) as it is shown in figure 1, set centered by selected suitable sample trees in standing forest to be measured, it is designated as No. 0 tree, No. 0 tree
Selection should avoid border as far as possible, chooses 6 closest with center tree sample trees, and note sample trees northernmost are No. 1, turn clockwise
It is marked, respectively 1,2,3,4,5, No. 6 trees；
2) successively by i (i=1,2 ..., 6) a number tree carries out seeds with No. 0 tree and compares, obtaining the identical quantity of seeds is n1
(n1≤6)；
3) successively with i+1 tree, No. i tree being carried out seeds to compare, obtaining the identical quantity of seeds is n2(n2≤ 6), wherein,
I=1,2 ..., 6, and as i=6, i+1=1；
4) digital-to-analogue is utilizedIt is calculated the standing forest Mixed modes M of wood on the basis of No. 0 tree.
Claims (1)
1. a method for seven tree method measuring and calculating standing forest Mixed modes, is characterized in that: in standing forest to be measured Selection Center tree and 6 away from
From the sample trees that center tree is nearest, 7 trees altogether, by the concordance of the most selected sample trees seeds, calculate the mixed friendship of standing forest to be measured
Degree M, specifically comprises the following steps that
1) setting centered by selected suitable sample trees in standing forest to be measured, be designated as No. 0 tree, the selection of No. 0 tree should be avoided as far as possible
Border, chooses 6 closest with center tree sample trees, and note sample trees northernmost are No. 1, turn clockwise and are marked, respectively
It is 1,2,3,4,5, No. 6 trees；
2) successively by i (i=1,2 ..., 6) a number tree carries out seeds with No. 0 tree and compares, obtaining the identical quantity of seeds is n1(n1≤
6)；
3) successively with i+1 tree, No. i tree being carried out seeds to compare, obtaining the identical quantity of seeds is n2(n2≤ 6), wherein, i=
1,2 ..., 6, and as i=6, i+1=1；
4) utilize digital-to-analogue 1.It is calculated the standing forest Mixed modes M of wood on the basis of No. 0 tree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387418.1A CN106056461A (en) | 2016-06-03 | 2016-06-03 | Method for measuring and calculating forest stand mingling degree by adopting seven-tree method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387418.1A CN106056461A (en) | 2016-06-03 | 2016-06-03 | Method for measuring and calculating forest stand mingling degree by adopting seven-tree method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106056461A true CN106056461A (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610387418.1A Pending CN106056461A (en) | 2016-06-03 | 2016-06-03 | Method for measuring and calculating forest stand mingling degree by adopting seven-tree method |
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| CN (1) | CN106056461A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111611443A (en) * | 2020-04-20 | 2020-09-01 | 东北林业大学 | Tree species space isolation degree evaluation method based on neighbor relation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246521A (en) * | 2008-01-11 | 2008-08-20 | 中国林业科学研究院林业研究所 | Forest community point sampling investigation method |
| CN102261903A (en) * | 2011-06-14 | 2011-11-30 | 北京林业大学 | Method for measuring forest based on electronic theodolite and total station |
| CN104535024A (en) * | 2014-10-23 | 2015-04-22 | 北京林业大学 | Forest calculating and measuring method for observing sample plot composed of five trees |
-
2016
- 2016-06-03 CN CN201610387418.1A patent/CN106056461A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246521A (en) * | 2008-01-11 | 2008-08-20 | 中国林业科学研究院林业研究所 | Forest community point sampling investigation method |
| CN102261903A (en) * | 2011-06-14 | 2011-11-30 | 北京林业大学 | Method for measuring forest based on electronic theodolite and total station |
| CN104535024A (en) * | 2014-10-23 | 2015-04-22 | 北京林业大学 | Forest calculating and measuring method for observing sample plot composed of five trees |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111611443A (en) * | 2020-04-20 | 2020-09-01 | 东北林业大学 | Tree species space isolation degree evaluation method based on neighbor relation |
| CN111611443B (en) * | 2020-04-20 | 2023-04-14 | 东北林业大学 | Tree species space isolation degree evaluation method based on neighbor relation |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
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| RJ01 | Rejection of invention patent application after publication |