CN109408966A - A kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth - Google Patents
A kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth Download PDFInfo
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Abstract
The eucalyptus Damage Grade appraisal procedure based on Stand Growth that the invention discloses a kind of, comprising the following steps: step 1, is collected and handled at the investigation of sample data early period；Step 2, in conjunction with windburn situation under Stands of Eucalyptus standing tree growing state under the Different forest stands age of stand and its varying strength typhoon, establish and be based on different tree species standing forest single plant forest Damage Grade assessment models；Step 3, the Stands of Eucalyptus that needs are assessed, carry out with establishing sample growth traits investigation or to the existing known age of stand, tree is high, standing tree and standing forest of trunk growth data, using having constructed based on different tree species standing forest single plant forest Damage Grade assessment models Integrated Evaluation Models, to carrying out the assessment of typhoon Damage Grade in higher in Stands of Eucalyptus and Stands of Eucalyptus.The present invention obtains the risks such as the different age of stand wind loading rating of eucalyptus and prevention high wind windburn, in eucalyptus genetic breeding selection wind-resistant cultivars, the efficient production and operation of eucalyptus plantation and risk averse provides technological guidance and support.
Description
Technical field
The present invention relates to eucalyptus plantations to cultivate, natural calamity windburn and prevention and treatment in Efficient Cultivation art field, specially
A kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth
Background technique
((Eucalyptus) is Myrtaceae, the general name of eucalyptus, mostly evergreen high megaphanerophyte, source area to eucalyptus
The overwhelming majority is in Australian continent, for most representative tree species in Australian xylophyta.Eucalyptus is in the torrid zone and temperate zone
The world is planted extensively, is introduced a fine variety history in existing more than 100 years of China, is the most important fast-growing in southern area of China, high yield tree species
One of, timber is widely used in paper pulp industry and wood-based plate industry.Eucalyptus is rapid in Chinese development since introducing a fine variety, until 2013
Only, more than 3.5 × 106hm2, produce 2.0 × 10 per year7m3Timber has made significant contribution for China's timber production.South China it is wide
The provinces and regions such as east, Guangxi, Fujian, Hainan are both Chinese artificial forest main producing region, and artificial forest area and accumulation account for the whole nation respectively
22.34% and 24.62%, and the most important producing region of Chinese eucalyptus.
The coastal summer typhoon of southern china is frequent, huge on Chinse Coastal Area forestry influence, every year because typhoon loss is huge
Greatly, violent typhoon even can inflict heavy losses on coastal area agriculture and forestry, be one of the principal element for causing economy of forestry to lose.Especially south
Coastal summer typhoon is frequent, threatens arboreal growth, seriously affects the development of coastal area ecological safety and related industry, because
This is in Commercial Forests/coast protection forest process of construction, and the assessment and prevention of standing forest windburn disaster, which seem, to be even more important, to breeding
Eucalyptus wind resistance tree species (strain), which develop Efficient Cultivation forestry, has great importance.
There are many factor for influencing forest generation windburn, there is biology and abiotic factor (meteorological condition, land occupation condition, landform
Environment) and forest biological factor itself and standing forest characteristic etc..Currently, scholar from growth indexes, morphological characters, Shelterbelts structure,
Lumber fibre, wood property etc. have carried out the correlative study of forest wind resistance mechanism, form several about forest wind-fall machine
Model and disaster caused by a windstorm the simulation assessment of reason, forecast system.But the factor for influencing anti-strong (typhoon) performance of tree species is numerous, how science and
Objectively comprehensively consider the factors such as tree growth form factor, the root system factor, material sex factor and constructs a more perfect synthesis
Indicator evaluation system is that current production of forestry be there are problems that.
Since the factor for influencing forest windburn is numerous, specifically for single plant forest, wind pressure is applied on standing tree and is formed
Wind load or wind bending moment is not only how many by forest tree species shape of tree-crown and size, blade and morphological feature is influenced, and and woods
Standing forest height, planting density, coefficient of air infiltration are closely related in point, and with windburn process topography and geomorphology and wind direction, wind speed etc.
Factors are related, therefore how accurate quantification forest windburn is currently to face complicated problem.In spite of using drawing tree test
Single plant forest windburn test is simulated, but many influence factor simplifications of windburn are handled, also there is woods under the different wind speed of real time monitoring
Wood, the test method of device under the action of measuring moment of flexure, torque, wind-force and its wind-force that trunk generates under Action of Wind pressure, but
Only to analyzing in single plant wind mechanism, method is complicated and needs professional equipment and corresponding technology, to standing forest trees
It is seen in the validity of the assessment of windburn, it is difficult to implement in practice in production.
Summary of the invention
It is insufficient to being predicted in high wind windburn for existing eucalyptus plantation, it is a kind of based on woods object of the present invention is to be to provide
The eucalyptus Damage Grade appraisal procedure of mitogenetic length, the present invention is based on coastal areas to produce large scale obtained in practice for a long time
Data carry out modeling and data mining institute preparation method technology, and the present invention obtains the different age of stand wind loading ratings of eucalyptus and prevention is strong
The risks such as wind windburn select wind-resistant cultivars for eucalyptus genetic breeding, in the efficient production and operation of eucalyptus plantation and risk averse
Provide technological guidance and support.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of based on Stand Growth
Eucalyptus Damage Grade appraisal procedure comprising following steps: characterized by comprising the following steps:
Step 1, is collected and is handled at the investigation of sample data early period；
Step 2, in conjunction with windburn under Stands of Eucalyptus standing tree growing state under the Different forest stands age of stand and its varying strength typhoon
Situation establishes different tree species, age of stand standing forest single plant growth traits and single plant forest Damage Grade assessment models；
Step 3, to the Stands of Eucalyptus assessed of needs, carry out with establishing sample growth traits investigation or to the existing known age of stand,
The standing tree and standing forest of tree height, trunk growth data, the Damage Grade assessment models comprehensive assessment constructed using step 2, to eucalyptus
The Damage Grade assessment for carrying out high wind or typhoon in standing forest in higher and Stands of Eucalyptus, in conjunction with establishing different tree species, woods
Divide age of stand growth model, to predict Damage Grade potential in stand growth process.
Further, in step 1, sample data early period by document or test obtain eucalyptus be subjected to high wind or
Typhoon windburn influences area, and the different age of stands, tree species, land occupation condition and standing forest standing tree growth data and varying strength are strong at present
Standing forest and higher Damage Grade distributed data under wind or typhoon influence, each tree species sample size are not less than 40 plants, each 1-4
Year, raw age of stand standing tree had.
Further, in step 1, higher Damage Grade is with ground and trunk angle and windburn type difference point
For 6 grades, 6 grades are as follows:
1 grade, trunk does not tilt significantly；
2 grades, trunk gradient is less than 30 °；
3 grades, trunk gradient is 30 °~60 °；
4 grades, trunk gradient is 60 °~90 °；
5 grades, trunk lodges or uproops completely；
It 6 grades, fractures.
Further, standing forest Damage Grade is higher Damage Grade average value in standing forest,
Further, in step 2, for establishing different tree species, age of stand standing forest single plant growth traits and single plant forest wind
The standing forest single plant growth traits of evil grade evaluation model is tree height and trunk size.
Further, in step 2, described establish is based on tree species, age of stand standing forest single plant growth traits and single plant forest wind
Evil grade evaluation model, wherein method used by the single plant forest Damage Grade assessment of each tree species/strain models is to use
Least square method carries out effect screening, model variance P < 0.05, the decision of model to the age of stand, tree height, 3 factor of trunk size
Coefficient is not less than 0.60.
Further, in step 3, the combination establishes different tree species, standing forest age of stand growth model to Stand Growth mistake
Potential Damage Grade prediction in journey, wherein Damage Grade time span of forecast is eucalyptus early stage Stand Growth, as 1-4 raw phase at the age of stand.
A kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth comprising following steps:
Step 1, is collected and is handled at the investigation of sample data early period；
Obtaining eucalyptus by document or test and being subjected to high wind or typhoon (wind grade >=6 grades or more) windburn influences area
At present woods under the different age of stands, tree species, land occupation condition and standing forest standing tree growth data and varying strength high wind or typhoon influence
Point and higher Damage Grade distributed data.
Higher Damage Grade (WD, wind damage class) with ground and trunk angle and windburn type not
With 6 grades are divided into, 6 grades are as follows:
1 grade, trunk does not tilt significantly；
2 grades, trunk gradient is less than 30 °；
3 grades, trunk gradient is 30 °~60 °；
4 grades, trunk gradient is 60 °~90 °；
5 grades, trunk lodges or uproops completely；
6 grades, trunk or treetop fracture.
Standing forest Damage Grade is higher Damage Grade average value in standing forest.
Step 2, high, trunk growing state and its varying strength platform in conjunction with Stands of Eucalyptus standing tree tree under the Different forest stands age of stand
Windburn level condition (in model foundation, Damage Grade data may be converted) under wind, using least square method, to woods
(ground diameter/diameter of a cross-section of a tree trunk 1.3 meters above the ground, diameter, D, set high not enough diameter of a cross-section of a tree trunk 1.3 meters above the ground height or the diameter of a cross-section of a tree trunk 1.3 meters above the ground is insufficient for age (A), tree high (height, H), trunk size
1cm uses butt diameter/ground diameter) the progress effect screening of 3 factors, it establishes and is based on tree species, age of stand standing forest single plant growth traits and list
Strain forest Damage Grade assessment models, model need significantly effectively (model variance P < 0.05), and the coefficient of determination of model is not less than
0.60。
Step 3, to the Stands of Eucalyptus assessed of needs, carry out with establishing sample growth traits investigation or to the existing known age of stand,
The data of tree height, trunk growth standing tree and standing forest, are commented using what is constructed based on different tree species standing forest single plant forest Damage Grade
Estimate model comprehensive assessment, assess high wind (typhoon) Damage Grade is carried out in higher in Stands of Eucalyptus and Stands of Eucalyptus,
It dives in conjunction with different tree species Stand Growth (tree height, trunk size) growing state under the different age of stands is established in stand growth process
It is predicted in Damage Grade.Wherein Damage Grade time span of forecast is that Stands of Eucalyptus was grown in the 1-4 raw phase at the age of stand.
The Stands of Eucalyptus specially assessed needs, selects typical standing forest to establish specification 10m × 10m, 1 or more sample
Ground carries out standing forest standing tree tree high (m), the investigation of trunk size (cm) character, and records standing forest tree species, the age of stand (moon), according to corresponding
The single plant forest Damage Grade assessment models of tree species calculate the experience windburn theory Damage Grade of the single plant of corresponding mapping at present,
And standing forest is averaged the forest Damage Grade of single plant with counting sample.Standing forest forest Damage Grade equally within statistics life in 4 years.For
Lack corresponding typhoon windburn data tree species, it can be using tree species similar in ratio of height to diameter, as Eucalyptus urophylla can use ratio of height to diameter
The clonal single plant forest Damage Grade assessment models of close tail alpine ash are assessed.
According to eucalyptus production reality and studies have shown that triennial Young Eucalyptus Plantation below is easiest to by windburn, i.e. eucalyptus wind resistance
Journal of Sex Research is concentrated mainly on early stage, therefore the present invention is actually evaluated mainly for 1-4 Stands of Eucalyptus Damage Grade,
Tree growth form factor, the root system factor, material sex factor of windburn data and test acquisition are obtained by eucalyptus production area
Etc. mass data carry out eucalyptus windburn/closely related character of wind resistance and selected, modeled with obtaining several crucial characters
Analysis.
Mass data of the present invention with eucalyptus production of forestry under high wind or typhoon (6 grades or more -17 grades) situation, passes through
Correlation analysis, principal component analysis and regression analysis acquisition and the closely related crucial character of windburn, are established a kind of raw based on standing forest
Long eucalyptus Damage Grade appraisal procedure, investigates the convenience used, and method is simple, and it is reliable etc. excellent that technology is easily mastered result
Point can obtain eucalyptus windburn situation by efficiently and accurately in a short time.Wind-resistant cultivars are cultivated for eucalyptus breeding and instruct eucalyptus
Safety in production evades windburn risk and provides technical support.
Effect of the invention: it is of the invention to forest higher windburn exponential forecasting precision 80% or more, standing forest is pre-
It surveys 85% or more.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
A kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth, which comprises the following steps:
Step 1, is collected and is handled at the investigation of sample data early period；
By document or test obtain eucalyptus be subjected to high wind or typhoon windburn influence area at present the different age of stands, tree species,
Standing forest and higher windburn under land occupation condition and standing forest standing tree growth data and varying strength high wind or typhoon influence
Distribution of grades data.
Different cultivars, which is obtained, by document or test produces upper tail alpine ash Stands of Eucalyptus standing tree mean stand height and mean DBH increment
Growing state (table 1).
The growth and windburn situation at different age of stands tail alpine ash DH3229 of table 1
The maturation history of the different age of stand tail alpine ash of table 2
| The age of stand (moon) | Set high (m) | The diameter of a cross-section of a tree trunk 1.3 meters above the ground (cm) |
| 6 | 2.8 | 2.2 |
| 12 | 4.4 | 4.1 |
| 24 | 7.1 | 6.6 |
| 30 | 8.5 | 8.2 |
| 48 | 10.3 | 10.0 |
Step 2, high, trunk growing state and its varying strength platform in conjunction with Stands of Eucalyptus standing tree tree under the Different forest stands age of stand
Windburn situation under wind establishes the tree species lower age of stand, standing forest single plant growth traits and single plant forest Damage Grade assessment models；
The single plant forest Damage Grade assessment models for the tail alpine ash clone DH3229 being widely applied in China's production are as follows:
WD=2.751547235+0.09149607*A-0.578585737*H+0.224981178*D+ 0.005555834*
(A-26.7143)*(H-6.06429)+0.023656387*(A-26.7143)*(D-8.06786)+0.022897501*(H-
6.06429)*(D-8.06786)
Damage Grade WD (grade) in formula, A are the age of stand (moon), and trunk size D (cm) is raw interior for ground diameter, life in 1 year in 1 year
The above are the diameters of a cross-section of a tree trunk 1.3 meters above the ground, set high H (m).Assessment models coefficient of determination R2=0.76799, root-mean-square error RMSE are 0.60184, model
Variance P=0.049.
Step 3, to the Stands of Eucalyptus assessed of needs, carry out with establishing sample growth traits investigation or to the existing known age of stand,
The standing tree and standing forest of tree height, trunk growth data, are commented using what is constructed based on different tree species standing forest single plant forest Damage Grade
Estimate model comprehensive assessment, the assessment of high wind (typhoon) Damage Grade, knot are carried out to higher in Stands of Eucalyptus and Stands of Eucalyptus
It builds jointly and founds different eucalypt species in Stand Growth (tree height, trunk size) situation under the different age of stands to latent in stand growth process
It is predicted in Damage Grade.Wherein Damage Grade time span of forecast is that Stands of Eucalyptus was grown in the 1-4 raw phase at the age of stand.
The Stands of Eucalyptus specially assessed needs, selects typical standing forest to establish specification 10m × 10m, 1 or more sample
Ground carries out standing forest standing tree tree high (m), the investigation of trunk size (cm) character, and records standing forest tree species, the age of stand (moon), according to corresponding
Single plant forest Damage Grade assessment models, calculate the experience windburn theory Damage Grade of the single plant of corresponding mapping at present, and count
Sample standing forest be averaged the forest Damage Grade of single plant.Standing forest forest Damage Grade equally within statistics life in 4 years.
According to sample to 2.5 years (30 months) tail alpine ash clone DH3229, investigated to different 9 samples, with obtaining sample
Standing forest tree height, diameter of a cross-section of a tree trunk 1.3 meters above the ground average value (table 3), pass through the single plant forest Damage Grade assessment models of tail alpine ash clone DH3229 respectively
[WD=2.751547235+0.09149607*A-0.578585737*H+0.224981178*D+ 0.005555834* (A-
26.7143)*(H-6.06429)+0.023656387*(A-26.7143)*(D-8.06786)+0.022897501*(H-
6.06429)*
(D-8.06786)].With finally the obtaining 9 standing forest samples Damage Grade average value under current age of stand situation, indicates this
When eucalyptus windburn between 3-4 grades.
The Damage Grade situation of upgrowth situation of the table 3 based on tail alpine ash
| The age of stand (moon) | Set high (m) | The diameter of a cross-section of a tree trunk 1.3 meters above the ground (cm) | WD (grade) |
| 30 | 5.4 | 5.2 | 3.4 |
| 30 | 5.5 | 5.0 | 3.2 |
| 30 | 6.5 | 6.5 | 3.1 |
| 30 | 5.9 | 5.7 | 3.2 |
| 30 | 5.9 | 5.4 | 3.1 |
| 30 | 5.6 | 5.2 | 3.2 |
| 30 | 5.1 | 4.2 | 3.4 |
| 30 | 6.2 | 5.5 | 3.0 |
| 30 | 5.5 | 5.3 | 3.3 |
Also according to the single plant forest Damage Grade assessment models [WD=for passing through tail alpine ash clone DH3229
2.751547235+0.09149607*A-0.578585737*H+0.224981178*D+0.005555834*(A-26.7143)*
(H-6.06429)+0.023656387*(A-26.7143)*(D-8.06786)+0.022897501*(H-6.06429)*(D-
8.06786) Stands of Eucalyptus windburn assessment], is carried out to the Stand Growth situation of the different age of stand tail alpine ash of table 2, as a result such as table 4.Most
Tail alpine ash clone DH3229 Damage Grade average value under 5 different age of stand situations is obtained afterwards, this is practical consistent with production.
The growing state of the different age of stand tail alpine ash of table 4
| The age of stand (moon) | Set high (m) | The diameter of a cross-section of a tree trunk 1.3 meters above the ground (cm) | The WD (grade) of prediction |
| 6 | 2.8 | 2.2 | 5.6 |
| 12 | 4.4 | 4.1 | 3.8 |
| 24 | 7.1 | 6.6 | 2.3 |
| 30 | 8.5 | 8.2 | 2.5 |
| 48 | 10.3 | 10.0 | 5.2 |
Embodiment 2
A kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth, which comprises the following steps:
Step 1, is collected and is handled at the investigation of sample data early period；
By document or test obtain eucalyptus be subjected to high wind or typhoon windburn influence area at present the different age of stands, tree species,
Standing forest and higher windburn under land occupation condition and standing forest standing tree growth data and varying strength high wind or typhoon influence
Distribution of grades data.
The high life with the diameter of a cross-section of a tree trunk 1.3 meters above the ground of standing tree tree for obtaining eucalyptus camaldulensis clone Ca1 Stands of Eucalyptus higher different times by test
Long situation (table 5).
The maturation history of the different age of stand tail alpine ash of table 5
Step 2, high, trunk growing state and its varying strength platform in conjunction with Stands of Eucalyptus standing tree tree under the Different forest stands age of stand
Windburn situation under wind establishes tree species, age of stand standing forest single plant growth traits and single plant forest Damage Grade assessment models；Eucalyptus camaldulensis is asexual
It is the single plant forest Damage Grade assessment models of Ca1 are as follows: WD=1.12195106+0.054198128*A-0.226014786*H+
0.116075525*D-0.005934742*(A-24.5)*(H-6.64318)+0.002709914*(A-24.5)*(D-
6.38523)-0.006706237*(H-6.64318)*(D-6.38523)
Damage Grade WD (grade) in formula, A are the age of stand (moon), and trunk size D (cm) is raw interior for ground diameter, life in 1 year in 1 year
For the diameter of a cross-section of a tree trunk 1.3 meters above the ground, high H (m) is set.Assessment models coefficient of determination R2=0.63578, root-mean-square error RMSE are 0.53408, model variance P
<0.0001。
Step 3, to the Stands of Eucalyptus assessed of needs, carry out with establishing sample growth traits investigation or to the existing known age of stand,
The standing tree and standing forest of tree height, trunk growth data, are commented using what is constructed based on different tree species standing forest single plant forest Damage Grade
Estimate model comprehensive assessment, assess high wind (typhoon) Damage Grade is carried out in higher in Stands of Eucalyptus and Stands of Eucalyptus,
In conjunction with establish tree kind under the different age of stands Stand Growth (tree high, trunk size) situation in stand growth process in 1-4 life
Potential Damage Grade prediction.Wherein Damage Grade time span of forecast is that Stands of Eucalyptus was grown in the 1-4 raw phase at the age of stand.
The Stands of Eucalyptus specially assessed needs, selects typical standing forest to establish specification 10m × 10m, 1 or more sample
Ground carries out standing forest standing tree tree high (m), the investigation of trunk size (cm) character, and records standing forest tree species, the age of stand (moon), according to corresponding
Single plant forest Damage Grade assessment models, calculate the experience windburn theory Damage Grade of the single plant of corresponding mapping at present, and count
Sample standing forest be averaged the forest Damage Grade of single plant.It can also equally calculate now with data growth data, pass through respectively
Eucalyptus camaldulensis clone Ca1 single plant forest Damage Grade assessment models [WD=1.12195106+0.054198128*A-
0.226014786*H+0.116075525*D-0.005934742*(A-24.5)*(H-6.64318)+0.002709914*(A-
24.5) * (D-6.38523) -0.006706237* (H-6.64318) * (D-6.38523)] high to the tree of 6 preceding 44 eucalyptus camaldulensis of table,
The diameter of a cross-section of a tree trunk 1.3 meters above the ground calculates the WD value (table 6) of prediction, and it is not clearly that the last practical WD of standing forest is different with prediction WD value difference.
The maturation history of the different age of stand tail alpine ash of table 6
The present invention is in addition to having fully considered that confrontation high wind (typhoon) windburn of the characters such as different Eucalyptus morphological features influences
Outside, it is also contemplated that the age of stand, tree species etc. to the anti-high wind of eucalyptus (typhoon) windburn influence degree, and finally obtain best practice obtain into
Row is based on Stands of Eucalyptus growth eucalyptus higher Damage Grade and Stands of Eucalyptus wind resistance situation.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth, which comprises the following steps:
Step 1, is collected and is handled at the investigation of sample data early period；
Step 2, in conjunction with windburn situation under Stands of Eucalyptus standing tree growing state under the Different forest stands age of stand and its varying strength typhoon,
Establish different tree species, age of stand standing forest single plant growth traits and single plant forest Damage Grade assessment models；
Step 3, to the Stands of Eucalyptus assessed of needs, carry out with establishing sample growth traits investigation or to the existing known age of stand, tree it is high,
The standing tree and standing forest of trunk growth data, different tree species, age of stand standing forest single plant growth traits and the single plant woods constructed using step 2
The wooden Damage Grade assessment models comprehensive assessment, to carrying out high wind or typhoon in higher in Stands of Eucalyptus and Stands of Eucalyptus
Damage Grade assessment, in conjunction with different tree species, standing forest age of stand growth model are established, thus to windburn potential in stand growth process etc.
Grade is predicted.
2. a kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth according to claim 1, which is characterized in that
In step 1, when sample data early period is subjected to high wind or typhoon windburn influence area by document or test acquisition eucalyptus
Standing forest under the lower difference age of stand, tree species, land occupation condition and standing forest standing tree growth data and varying strength high wind or typhoon influence
Damage Grade and higher Damage Grade distributed data, each tree species sample size are not less than 40 plants, and each 1-4 is raw, and the age of stand is vertical
Wood has.
3. a kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth according to claim 2, which is characterized in that
In step 1, higher Damage Grade is divided into 6 grades with ground and trunk angle and windburn type difference, and 6 grades are such as
Under:
1 grade, trunk does not tilt significantly；
2 grades, trunk gradient is less than 30 °；
3 grades, trunk gradient is 30 °~60 °；
4 grades, trunk gradient is 60 °~90 °；
5 grades, trunk lodges or uproops completely；
It 6 grades, fractures.
4. a kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth according to claim 2, which is characterized in that woods
Dividing Damage Grade is higher Damage Grade average value in standing forest.
5. a kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth according to claim 1, which is characterized in that
In step 2, for establishing the standing forest of different tree species, age of stand standing forest single plant growth traits and single plant forest Damage Grade assessment models
Single plant growth traits is tree height and trunk size.
6. a kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth according to claim 1, which is characterized in that
In step 2, described establish is based on tree species, age of stand standing forest single plant growth traits and single plant forest Damage Grade assessment models, wherein
Method used by the single plant forest Damage Grade assessment of each tree species/strain models is using least square method, to the age of stand, tree
High, 3 factor of trunk size carries out effect screening, and the coefficient of determination of model variance P < 0.05, model is not less than 0.60.
7. a kind of eucalyptus Damage Grade appraisal procedure based on Stand Growth as described in claim 1, which is characterized in that in step
In rapid 3, different tree species are established in the combination, standing forest age of stand growth model predicts Damage Grade potential in stand growth process,
Wherein Damage Grade time span of forecast is eucalyptus early stage Stand Growth, as 1-4 raw phase at the age of stand.
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| CN201811260994.5A CN109408966B (en) | 2018-10-26 | 2018-10-26 | Eucalyptus wind damage grade evaluation method based on forest stand growth |
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| CN111238944A (en) * | 2019-11-01 | 2020-06-05 | 安徽农业大学 | Equipment and method for monitoring/predicting wind resistance of trees |
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| RU2296459C1 (en) * | 2005-08-03 | 2007-04-10 | ФГУ Всероссийский научно-исследовательский институт лесоводства и механизации лесного хозяйства (ВНИИЛМ) | Method for evaluating of increase in wood growth demand by clean forest crop |
| CN103678870A (en) * | 2013-09-24 | 2014-03-26 | 中国林业科学研究院资源信息研究所 | Growth and management interactive visualization simulation method for forest stand |
| RU2542524C1 (en) * | 2013-09-17 | 2015-02-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежская государственная лесотехническая академия" | Method of silvicultural care of residual crop |
| CN104778626A (en) * | 2015-03-25 | 2015-07-15 | 山西大学 | Grade evaluation method for ecological adaptability of afforestation tree species |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2296459C1 (en) * | 2005-08-03 | 2007-04-10 | ФГУ Всероссийский научно-исследовательский институт лесоводства и механизации лесного хозяйства (ВНИИЛМ) | Method for evaluating of increase in wood growth demand by clean forest crop |
| RU2542524C1 (en) * | 2013-09-17 | 2015-02-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежская государственная лесотехническая академия" | Method of silvicultural care of residual crop |
| CN103678870A (en) * | 2013-09-24 | 2014-03-26 | 中国林业科学研究院资源信息研究所 | Growth and management interactive visualization simulation method for forest stand |
| CN104778626A (en) * | 2015-03-25 | 2015-07-15 | 山西大学 | Grade evaluation method for ecological adaptability of afforestation tree species |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111238944A (en) * | 2019-11-01 | 2020-06-05 | 安徽农业大学 | Equipment and method for monitoring/predicting wind resistance of trees |
| CN111238944B (en) * | 2019-11-01 | 2022-06-14 | 安徽农业大学 | Equipment and method for monitoring/predicting wind resistance of trees |
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