CN114018122A - Global forest growth amount system determination method - Google Patents
Global forest growth amount system determination method Download PDFInfo
- Publication number
- CN114018122A CN114018122A CN202111319760.5A CN202111319760A CN114018122A CN 114018122 A CN114018122 A CN 114018122A CN 202111319760 A CN202111319760 A CN 202111319760A CN 114018122 A CN114018122 A CN 114018122A
- Authority
- CN
- China
- Prior art keywords
- growth
- tree
- forest
- plot
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000012010 growth Effects 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 30
- 210000000020 growth cone Anatomy 0.000 claims abstract description 15
- 238000009825 accumulation Methods 0.000 claims abstract description 13
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 210000000481 breast Anatomy 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000007605 air drying Methods 0.000 claims description 4
- 230000007773 growth pattern Effects 0.000 claims description 4
- 239000002028 Biomass Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 210000000038 chest Anatomy 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims description 2
- 238000011160 research Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000011835 investigation Methods 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 7
- 241000894007 species Species 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0035—Measuring of dimensions of trees
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention relates to integrated measuring equipment and a method for a growth amount monitoring platform, which realize the supervision and the system measurement of the global forest growth amount. (1) Micro-sample area: a sampling circle method for distributing micro sample plots, wherein the sampling circle method is a sample plot sampling investigation method which is high in efficiency, small in error and standardized and derived on the basis of a polygonal or circular sample plot method; (2) an electron growth cone: carrying out electric growth cone sampling on the same dominant tree species near the micro-sample plot, obtaining a tree core, carrying out laboratory analysis, and obtaining the annual growth quantity of the tree; (3) forest stand factor: calculating forest stand density, average breast diameter and accumulation amount by combining a five-tree plot method and a unitary volume model; (4) growth amount model: in the growth model study, certain assumptions are made according to biological characteristics, a differential equation or a calculus equation about y (t) is established, and the differential equation or the calculus equation is solved and substituted into an initial condition or a boundary condition, so that a special solution of the differential equation is obtained, and the growth equation is called a theoretical equation.
Description
One, the technical field
The invention relates to a growth amount prediction method, in particular to a global forest growth amount system measurement method.
Second, background Art
The forest ecosystem is vital to the survival of animals and humans, can protect biodiversity, hydrological assets and soil and alleviate the influence of climate change, and simultaneously provides food, wood and energy for humans. The parameters describing the quantity, quality and operation state of the forest are many, such as the height, breast diameter, volume, growth amount and the like of a single tree, the tree species composition proportion, average breast diameter, average height, density, accumulation amount, growth amount and the like of a forest stand. Biomass, net primary productivity, carbon sequestration, etc. are all important parameters if measured against global climate change; forest land area and accumulation amount reflecting the number of forests in a country or region; reflecting the growth amount of forest quality. In reality, the forest coverage and the accumulation of a country or a place are very important and sensitive, but the annual growth of the forest is not very important. In fact, the accumulation is the result of annual accumulation, while the growth is the result of annual additions.
Therefore, forest growth measurement is very important for global forest management. Forestry staff provides accurate annual unit area in-growth volume measurement in the forest management process, can promote global forest quality comprehensively. The invention provides a measuring device and a measuring method integrating a micro sample plot (5-tree method), an electric growth cone and a growth amount monitoring platform for forestry workers, which can strengthen the evaluation and management of forest land growth amount, optimize the age group configuration, regulate and control the radial density, implement accurate management and protection and further realize effective forest management and management.
Third, the invention
In order to effectively manage and supervise forest growth, the invention aims to provide a measuring device and a method integrating a micro sample plot (a 5-tree method), an electric growth cone and a growth amount monitoring platform.
The purpose of the invention is realized as follows:
(1) micro-sample area: the sample circle method is a sample circle sampling investigation method which is high in efficiency, small in error and standardized and derived based on a polygonal or circular sample circle method, and is finally formed after years of practice. The concrete idea of the sample circle method is as follows: selecting 4 observation trees around one tree to be observed as a center tree, and measuring chest diameter values of all the trees, the tree height of the center tree and the farthest distance of the center tree so as to calculate forest stand parameters such as average chest diameter of forest stands, forest stand density, forest stand accumulation amount and the like;
(2) an electron growth cone: and (4) carrying out electric growth cone sampling on the same dominant tree species near the micro-sample plot, obtaining a tree core, carrying out laboratory analysis, and obtaining the annual growth amount of the tree. The electric growth cone equipment is independently and innovatively designed for key laboratories in Beijing City of precision forestry, uses a motor to replace manpower to provide power for a growth cone to drill into a tree body, and consists of a Haglof tree growth cone, a chuck, a direct-current speed reduction motor, a motor controller, a power lithium battery, a horizontal power-assisted grip and a simple level;
(3) forest stand factor: the basic idea of the five-tree sample plot method is to regard N (N is 5) trees selected from the sample plot as a polygon formed by N-1 trees with one tree as the center, the contribution weight of the middle tree to the sample plot statistic is 1, the contribution weight of the trees positioned on the polygon side to the sample plot statistic is weighted according to the ratio of the opening angle of each adjacent tree to the polygon and the circumferential angle, and the total contribution weight is 2. Calculating forest stand density, average breast diameter and accumulation amount by combining a unitary volume model;
(4) growth amount model: in the growth model study, certain assumptions are made according to biological characteristics, a differential equation or a calculus equation about y (t) is established, and the differential equation or the calculus equation is solved and substituted into an initial condition or a boundary condition, so that a special solution of the differential equation is obtained, and the growth equation is called a theoretical equation. The method is characterized in that: the logic is strong; secondly, the applicability is larger; the parameters can be verified by independent tests, namely the parameters can be biologically explained; and fourthly, the future growth trend can be predicted theoretically.
The invention has the following advantages:
(1) the method has the advantages that forestry workers can measure the growth amount in the area, so that the tree cores can be sampled in a labor-saving mode, the calculation of forest stand density, average breast diameter and accumulation amount can be realized, and the growth amount can be predicted;
(2) the electronic growth cone is a small device which can be carried about to sample forest trees;
(3) provides a new idea and device for global forest management and growth measurement.
Description of the drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a distribution diagram of microplasma of Zhangye;
FIG. 2 is a schematic view of an electron growth cone;
FIG. 3 shows a core after sampling and processing;
FIG. 4 is a view of annual rings observed by a microscope;
fig. 5 is a partial interface of the software measuring tree growth data.
Fifth, detailed description of the invention
A global forest growth amount system measuring method can sample tree cores in a labor-saving mode, can calculate forest stand density, average breast diameter and accumulation amount, and can predict growth amount, and the method comprises the following specific steps:
(1) laying micro-sample areas: selecting a representative area in a research area to carry out micro-plot planning, selecting an ideal distance as the radius of a circular plot like the circular plot, carrying out per-tree measuring in the plot, recording tree species, and measuring the breast height and the tree height of the tree;
(2) sampling an electron growth cone: taking a tree core sample by using an electronic growth cone, carrying out air drying treatment on the sampled tree core, fixing the tree core in a batten with a semicircular groove by using milky white glue after air drying, polishing by using an abrasive belt machine 2-3 days after drying in the shade until the surface is flat and the boundary line is clear, matching the treated tree core with TSAP-WIN software for measurement, and recording the growth data of the tree in each year;
(3) calculating a forest stand factor: according to the tree information measured in the micro sample plot, determining the weight according to the contribution weight of the trees positioned on the polygon side to the sample plot statistic and the ratio of the internal opening angle of the adjacent side of each tree to the polygon to the circumferential angle, and combining a unitary wood volume model to calculate the forest stand density, the forest stand accumulation amount, the biomass and the carbon reserve;
(4) and (3) researching and establishing a growth amount model: according to the forest resource growth conditions of different regions of the world, a land surface arbor growth pattern (land) index and an arbor growth structure (land level) index are provided, and a vegetation growth prediction model is established. The regional change influence on the forest arbor growth process is divided into longitude (L), latitude (B), altitude (H), temperature (T) and rainfall (R), and the factors are summarized to be the arbor growth pattern (site) index. The method comprises the steps of dividing the influence of the change of the position on the growth process of the forest trees into a slope (alpha), a slope direction (beta), a slope position (gamma) and soil thickness (h), and summarizing the factors into the growth structure (position level) index of the trees.
Claims (1)
1. A global forest growth amount system measuring method is characterized by comprising the following steps: the mode that can use manpower sparingly samples the tree core, can realize the calculation of forest stand density, average chest diameter and accumulation volume again, can also predict growth volume, and concrete step is as follows:
(1) laying micro-sample areas: selecting a representative area in a research area to carry out micro-plot planning, selecting an ideal distance as the radius of a circular plot like the circular plot, carrying out per-tree measuring in the plot, recording tree species, and measuring the breast height and the tree height of the tree;
(2) sampling an electron growth cone: taking a tree core sample by using an electronic growth cone, carrying out air drying treatment on the sampled tree core, fixing the tree core in a batten with a semicircular groove by using milky white glue after air drying, polishing by using an abrasive belt machine 2-3 days after drying in the shade until the surface is flat and the boundary line is clear, matching the treated tree core with TSAP-WIN software for measurement, and recording the growth data of the tree in each year;
(3) calculating a forest stand factor: according to the tree information measured in the micro sample plot, determining the weight according to the contribution weight of the trees positioned on the polygon side to the sample plot statistic and the ratio of the internal opening angle of the adjacent side of each tree to the polygon to the circumferential angle, and combining a unitary wood volume model to calculate the forest stand density, the forest stand accumulation amount, the biomass and the carbon reserve;
(4) and (3) researching and establishing a growth amount model: according to the forest resource growth conditions of different regions of the world, a land surface arbor growth pattern (land) index and an arbor growth structure (land level) index are provided, and a vegetation growth prediction model is established. The regional change influence on the forest arbor growth process is divided into longitude (L), latitude (B), altitude (H), temperature (T) and rainfall (R), and the factors are summarized to be the arbor growth pattern (site) index. The method comprises the steps of dividing the influence of the change of the position on the growth process of the forest trees into a slope (alpha), a slope direction (beta), a slope position (gamma) and soil thickness (h), and summarizing the factors into the growth structure (position level) index of the trees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111319760.5A CN114018122A (en) | 2021-11-09 | 2021-11-09 | Global forest growth amount system determination method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111319760.5A CN114018122A (en) | 2021-11-09 | 2021-11-09 | Global forest growth amount system determination method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114018122A true CN114018122A (en) | 2022-02-08 |
Family
ID=80062878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111319760.5A Pending CN114018122A (en) | 2021-11-09 | 2021-11-09 | Global forest growth amount system determination method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114018122A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008056841A1 (en) * | 2007-11-14 | 2009-05-20 | Liu, Jinchen, Dr.rer.nat. | Circumferential growth measuring device for plant organs of tree, has compression spring arranged between plant organ and distance sensor in radial direction, where sensor measures distance between plant organ and transmission rope |
| CN104748641A (en) * | 2013-12-29 | 2015-07-01 | 周光芸 | Mark post |
| CN105243050A (en) * | 2015-09-18 | 2016-01-13 | 北京林业大学 | Method for calculating maximum forest stand volume |
| CN107976133A (en) * | 2017-11-02 | 2018-05-01 | 中南林业科技大学 | It is a kind of based on the diameter measuring device for cutting ruler |
| CN109076637A (en) * | 2016-02-05 | 2018-12-21 | 埃丝埃文·奥古斯托·戈斯加斯帕罗托 | Forest monitors System and method for |
-
2021
- 2021-11-09 CN CN202111319760.5A patent/CN114018122A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008056841A1 (en) * | 2007-11-14 | 2009-05-20 | Liu, Jinchen, Dr.rer.nat. | Circumferential growth measuring device for plant organs of tree, has compression spring arranged between plant organ and distance sensor in radial direction, where sensor measures distance between plant organ and transmission rope |
| CN104748641A (en) * | 2013-12-29 | 2015-07-01 | 周光芸 | Mark post |
| CN105243050A (en) * | 2015-09-18 | 2016-01-13 | 北京林业大学 | Method for calculating maximum forest stand volume |
| CN109076637A (en) * | 2016-02-05 | 2018-12-21 | 埃丝埃文·奥古斯托·戈斯加斯帕罗托 | Forest monitors System and method for |
| CN107976133A (en) * | 2017-11-02 | 2018-05-01 | 中南林业科技大学 | It is a kind of based on the diameter measuring device for cutting ruler |
Non-Patent Citations (3)
| Title |
|---|
| 卢婧: "运用随机森林模型对北京市林分蓄积生长量的预测", 《东北林业大学学报》 * |
| 常晨: "电动生长锥结合Python树木年轮信息提取研究", 《中国农业科技导报》 * |
| 邱梓轩: "望远摄影测树仪设计与实验", 《农业机械学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Räsänen et al. | A step further towards quantitative reconstruction of past vegetation in Fennoscandian boreal forests: pollen productivity estimates for six dominant taxa | |
| CN108981616B (en) | Method for inverting effective leaf area index of artificial forest by unmanned aerial vehicle laser radar | |
| CN107943885A (en) | A kind of sample investigation method for obtaining the accurate space orientation data of forest community | |
| CN101158576A (en) | Embedded program type electric theodolites angle gage automatic stereo tree-measuring technology | |
| CN103279636A (en) | Technology for measuring and calculating tree ages | |
| CN109710889A (en) | A kind of sampling method for accurately estimating Forest Productivity based on tree ring | |
| CN110231451B (en) | Investigation method for suitable moisture of xerophyte soil | |
| JP2022511083A (en) | Scanning mode application for neutron gamma ray analysis for soil carbon cartography | |
| CN114018122A (en) | Global forest growth amount system determination method | |
| CN108510182A (en) | A kind of Natural Uneven-Aged Forests age survey meter method | |
| CN110470258B (en) | Method and system for determining growth amount of Yunnan pine forest | |
| CN110853699A (en) | Method for establishing single-tree growth model under large-area condition | |
| CN107131835A (en) | A kind of natural meadow grass layer apparent height measuring method | |
| Bošeľa et al. | Evaluating similarity of radial increments around tree stem circumference of European beech and Norway spruce from Central Europe | |
| CN103486928A (en) | Method for measuring canopy density, density and living vegetation volume under condition of troublesome vegetation | |
| Fischer et al. | Use of δ13C as water stress indicator and potential silvicultural decision support tool in Pinus radiata stand management in South Africa | |
| CN112287507B (en) | Method for developing relationship between rainfall and growth index of Chinese dominant tree species | |
| Tabacchi et al. | Italian National Forest Inventory: Methods, state of the project, and future developments | |
| CN111369043A (en) | Method for predicting radial growth amount of Korean pine | |
| CN106885559A (en) | A kind of method that combination internet carries out forest forestry resource survey | |
| Nichols | Quantitative methods for assessing macrophyte vegetation | |
| CN112749837B (en) | Method for estimating cereal crop yield based on post-flower NDVI accumulation value | |
| CN114580207B (en) | method for judging potential production capacity of fir large-diameter material | |
| CN110411502B (en) | Method for measuring relationship between arbor growth amount and precipitation amount | |
| CN205941495U (en) | Age of tree identification apparatus of ancient trees name wood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220208 |
|
| WD01 | Invention patent application deemed withdrawn after publication |