CN109156309A - A kind of felling method reducing Eucalyptus deformation and cracking - Google Patents
A kind of felling method reducing Eucalyptus deformation and cracking Download PDFInfo
- Publication number
- CN109156309A CN109156309A CN201810821530.0A CN201810821530A CN109156309A CN 109156309 A CN109156309 A CN 109156309A CN 201810821530 A CN201810821530 A CN 201810821530A CN 109156309 A CN109156309 A CN 109156309A
- Authority
- CN
- China
- Prior art keywords
- eucalyptus
- girdling
- cracking
- deformation
- days
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/08—Felling trees
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses the felling methods of a kind of reduction Eucalyptus deformation and cracking, include following operation: (1) selecting the above eucalyptus to be felled of life in 5 years, girdling processing is being carried out at 0.5~1.0 meter of eucalyptus root, 15~25 centimetres of high eucalyptus barks are removed in girdling；(2) xylem that exposes after girdling in step (1) smears glyphosate, and applying amount is to be subject to brush to smear a girdling mouth completely；(3) eucalyptus is cuted down in girdling after 15 days, tree after carry out again within 15 days delimbing, producing material to get.Eucalyptus is felled using the present invention, reduce stress existing for Eucalyptus itself, it is low to fell obtained Eucalyptus moisture content, reduce Eucalyptus water decomposition it is wet when the drying shrinkage that generates it is excessive caused by strain cracking phenomenon, the problem of cracking, deformation are reduced when making Eucalyptus be sawed into solid wood board, the feasibility using Eucalyptus manufacture solid wood board is improved, the products such as solid wood furniture is manufactured for Eucalyptus and practicable method is provided.
Description
Technical field
The present invention relates to a kind of harvesting of wood method, in particular to a kind of felling method for reducing Eucalyptus deformation and cracking.
Background technique
The reason of timber crack deforms according to stress source can be divided into two kinds: one is the drying shrinkage bulking because of timber, due to
Timber has anisotropy, and drying shrinkage is uneven with bulking, and timber is caused to generate craze and transfiguration；Another kind is due to arboreal growth
In the process, due to the growth of cell, there is lateral tensile stress, which can be accumulated in wood internal in standing tree, temporarily
When be in internal balance state, but when timber is by sawed-off or when cut, which is broken, and externally shows stress, draws
Play timber crack deformation.Internal stress in timber by timber moisture difference and when arboreal growth be accumulated in the life in timber
Long stress generates.Because of the effect of growth stress, trees or felled tree felling, producing material, drying operation in, log end face from
Medulla cracks along radial direction at three or more, is more common in broad-leaved wood.Prevent effectively arranging for timber crack deformation
Applying is the pace of change that Water In Wood is paid attention to during producing material and log preservation and management.In the operations such as felling, producing material, transporting something containerized,
Accomplish the effects of felled tree should not be by huge shock, vibration, gravity as far as possible.
The growth stress of trees is constantly accumulated in its growth, and the growth and development of trees inner cell are derived from.
The generation of growth stress can simply be divided into two stages: first stage is to fill out into the cell, by cell grows, breeds
The inside for filling up trees increases the diameter and height of trees；Second stage is cell wall thickening, and that fills out in completion is same
When and later, cell wall thickness increase, thus will form cellulose and lignin, the two is deposited between the interbed of cell.This
When, the case where lignin will appear lateral expansion, longitudinal contraction, power caused by the two deformation integrates to be provided for trees
Preferable drawing force, the growth stress of trees generates as a result,.The growth and development of fast-growing eucalyptus is rapid, faster than other tree species
Much, thus he accumulate growth stress it is also more much bigger than other tree species, eucalyptus structure by destruction (such as sawing, impact,
Lightning stroke, wind) when, this growth stress can discharge rapidly out, cause cracking and the deformation of timber.
People mainly think the excessive moisture and nutrient absorbed in soil of eucalyptus, lead to local soil depletion after plantation,
Cause other plant growths bad.It is general using adjustment planting density, the rational application of fertilizer, increasing in the prior art for this problem
Add eucalyptus to cut down the time limit, is influenced to reduce eucalyptus to local soil fertility and moisture.But it prescribes a time limit in year when increasing eucalyptus felling, eucalyptus
The economic value that it is set as Wood-based Panel Production raw material substantially reduces.After extending the felling time limit, diameter increases fast-growing eucalyptus
Greatly, still, end is easy cracking when eucalyptus is felled, and splitting is easy after saw lumber, and dry easy shrinkage, deformation have seriously affected big
Application of the diameter Eucalyptus as solid wood material.How to reduce Eucalyptus cracking, deformation, is the key that utilize Eucalyptus solid wood.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without
It should be considered as recognizing or implying in any form that the information constitutes existing skill already known to those of ordinary skill in the art
Art.
Summary of the invention
The present invention for the technical problems in the prior art, invents the felling of a kind of reduction Eucalyptus deformation and cracking
Method, it is intended to which the technical issues of Eucalyptus after felling cracks during solid wood producing material, deforms can be reduced by obtaining one kind
Felling method.
To achieve the above object, technical solution provided by the invention is as follows:
A kind of felling method reducing Eucalyptus deformation and cracking, includes following operation:
(1) the above eucalyptus to be felled of life in 5 years is selected, apart from progress girdling processing at 0.5~1.0 meter of eucalyptus root,
Remove 15~25 centimetres of high eucalyptus barks using cutter girdling, when girdling, it is logical by the transmission of bast thoroughly to cut off trees
Road makes subject to xylem is exposed so to cut off forming layer completely；
(2) xylem exposed after girdling in step (1) smears glyphosate, and applying amount is to smear one completely with brush
Subject to girdling mouth；
(3) eucalyptus is cuted down in girdling after 15 days, after setting, first with no treatment, after 15 days, then carries out delimbing, makes
Material to get.
Preferably, the mass concentration of glyphosate described in step (2) is 30~50%.
Compared with prior art, the invention has the following beneficial effects:
Eucalyptus is felled using the present invention, reduces stress existing for Eucalyptus itself, the Eucalyptus felled is aqueous
Rate is low, reduce Eucalyptus water decomposition it is wet when the drying shrinkage that generates it is excessive caused by strain cracking phenomenon, so that Eucalyptus is sawed into solid wood
The problem of cracking, deformation are reduced when plate improves the feasibility using Eucalyptus manufacture solid wood board, real for Eucalyptus manufacture
The products such as wooden furniture provide practicable method.
Specific embodiment
It is described in detail With reference to embodiment, it is to be understood that protection scope of the present invention is not had
The limitation of body embodiment.Eucalyptus used in embodiment is Eucalyptus urophylla-grandis dh3229 series, and the age of tree is 15 years, from Nanning
The 11st block of arboretum Lianshan Mountain area under control.Detection instrument used in the examples meets national standard, there is following experimental tool:
Steel ruler, the platform work board 150A-7 type clearance gauge, capable board No.8207 type of golden monkey board JSH-0730 range 30cm scale division value 0.5mm
Range 3m scale division value 1mm steel tape.
The method of gained plate is the " Log inspection of GB/T 15787-2013 after detection Eucalyptus log, producing material in embodiment
Term ", GB/T -2013 " Log inspection ".
Embodiment 1
A kind of felling method reducing Eucalyptus deformation and cracking, operating procedure are as follows:
(1) eucalyptus for selecting life in 5 years or more uses saw in the progress girdling processing at 0.5~0.7 meter of eucalyptus root
15~20 centimetres of high eucalyptus barks are removed in girdling, when girdling, thoroughly to cut off transmission channel of the trees by bast, so
Forming layer is cut off completely, made subject to xylem is exposed；
(2) xylem exposed after girdling in step (1) smears the glyphosate that mass concentration is 30%, and applying amount is
Brush of being subject to smears a girdling mouth completely；
(3) eucalyptus is cuted down in girdling after 15 days, after setting, first with no treatment, after 15 days, then carries out delimbing, makes
Material to get.
It is 21.38% that testing result, which is the average crack ratio of Eucalyptus log, in this implementation, and the plate angularity that is averaged is
0.23, the average crack ratio of plate is 12.14%.
Embodiment 2
A kind of felling method reducing Eucalyptus deformation and cracking, operating procedure are as follows:
(1) eucalyptus for selecting life in 5 years or more uses saw in the progress girdling processing at 0.7~0.9 meter of eucalyptus root
20~25 centimetres of high eucalyptus barks are removed in girdling, when girdling, thoroughly to cut off transmission channel of the trees by bast, so
Forming layer is cut off completely, made subject to xylem is exposed；
(2) xylem exposed after girdling in step (1) smears the glyphosate that mass concentration is 40%, and applying amount is
Brush of being subject to smears a girdling mouth completely；
(3) eucalyptus is cuted down in girdling after 15 days, after setting, first with no treatment, after 15 days, then carries out delimbing, makes
Material to get.
It is 22.05% that testing result, which is the average crack ratio of Eucalyptus log, in this implementation, and the plate angularity that is averaged is
0.21, the average crack ratio of plate is 11.98%.
Embodiment 3
A kind of felling method reducing Eucalyptus deformation and cracking, operating procedure are as follows:
(1) eucalyptus for selecting life in 5 years or more uses saw in the progress girdling processing at 0.8~1.0 meter of eucalyptus root
15~25 centimetres of high eucalyptus barks are removed in girdling, when girdling, thoroughly to cut off transmission channel of the trees by bast, so
Forming layer is cut off completely, made subject to xylem is exposed；
(2) xylem exposed after girdling in step (1) smears the glyphosate that mass concentration is 50%, and applying amount is
Brush of being subject to smears a girdling mouth completely；
(3) eucalyptus is cuted down in girdling after 15 days, after setting, first with no treatment, after 15 days, then carries out delimbing, makes
Material to get.
It is 21.54% that testing result, which is the average crack ratio of Eucalyptus log, in this implementation, and the plate angularity that is averaged is
0.26, the average crack ratio of plate is 12.33%.
Comparative example 1
A kind of Eucalyptus felling method, operating procedure are as follows:
(1) eucalyptus for selecting life in 5 years or more uses saw in the progress girdling processing at 0.7~0.9 meter of eucalyptus root
20~25 centimetres of high eucalyptus barks are removed in girdling, when girdling, thoroughly to cut off transmission channel of the trees by bast, so
Forming layer is cut off completely, made subject to xylem is exposed；
(2) xylem exposed after girdling in step (1) smears the glyphosate that mass concentration is 40%, and applying amount is
Brush of being subject to smears a girdling mouth completely；
(3) eucalyptus is cuted down in girdling after 10 days, after setting, first with no treatment, after 15 days, then carries out delimbing, makes
Material to get.
It is 41.9% that testing result, which is the average crack ratio of Eucalyptus log, in this implementation, and the plate angularity that is averaged is
0.32, the average crack ratio of plate is 14.05%.
Comparative example 2
A kind of Eucalyptus felling method, operating procedure are as follows:
(1) eucalyptus for selecting life in 5 years or more uses saw in the progress girdling processing at 0.7~0.9 meter of eucalyptus root
20~25 centimetres of high eucalyptus barks are removed in girdling, when girdling, thoroughly to cut off transmission channel of the trees by bast, so
Forming layer is cut off completely, made subject to xylem is exposed；
(2) xylem exposed after girdling in step (1) smears the glyphosate that mass concentration is 40%, and applying amount is
Brush of being subject to smears a girdling mouth completely；
(3) eucalyptus is cuted down after girdling, after setting, first with no treatment, after 15 days, then carries out delimbing, producing material,
To obtain the final product.
It is 50.85% that testing result, which is the average lobe ratio of Eucalyptus log, in this implementation, and the plate angularity that is averaged is
0.33, the average crack ratio of plate is 25.24%.
Comparative example 3
A kind of Eucalyptus felling method, operating procedure are as follows:
(1) eucalyptus for selecting life in 5 years or more uses saw in the progress girdling processing at 0.7~0.9 meter of eucalyptus root
20~25 centimetres of high eucalyptus barks are removed in girdling, when girdling, thoroughly to cut off transmission channel of the trees by bast, so
Forming layer is cut off completely, made subject to xylem is exposed；
(2) eucalyptus is cuted down in girdling after 15 days, after setting, first with no treatment, after 15 days, then carries out delimbing, makes
Material to get.
It is 43.8% that testing result, which is the average lobe ratio of Eucalyptus log, in this implementation, and the plate angularity that is averaged is
0.30, the average crack ratio of plate is 16.16%.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These are retouched
It states and is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out very much
Change and changes.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and in fact
Border application, so that those skilled in the art can be realized and utilize a variety of different exemplary embodiment party of the invention
Case and various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (2)
1. a kind of felling method for reducing Eucalyptus deformation and cracking, which is characterized in that include following operation:
(1) the above eucalyptus to be felled of life in 5 years is selected, apart from progress girdling processing at 0.5~1.0 meter of eucalyptus root, girdling
Remove 15~25 centimetres of high eucalyptus barks；
(2) xylem exposed after girdling in step (1) smears glyphosate, and applying amount is to smear a girdling completely with brush
Subject to mouthful；
(3) eucalyptus is cuted down in girdling after 15 days, tree after carry out again within 15 days delimbing, producing material to get.
2. felling method according to claim 1, it is characterised in that: the mass concentration of glyphosate described in step (2) is
30~50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821530.0A CN109156309A (en) | 2018-07-24 | 2018-07-24 | A kind of felling method reducing Eucalyptus deformation and cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821530.0A CN109156309A (en) | 2018-07-24 | 2018-07-24 | A kind of felling method reducing Eucalyptus deformation and cracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109156309A true CN109156309A (en) | 2019-01-08 |
Family
ID=64898303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810821530.0A Pending CN109156309A (en) | 2018-07-24 | 2018-07-24 | A kind of felling method reducing Eucalyptus deformation and cracking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109156309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110810050A (en) * | 2019-05-21 | 2020-02-21 | 新疆林科院经济林研究所 | Method for rapidly promoting healing of large saw cut of walnut tree |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933728A (en) * | 2004-02-10 | 2007-03-21 | Fmc有限公司 | Method for control of ground shoots of vines and other trunk vegetation |
| KR20090003009U (en) * | 2007-09-21 | 2009-03-25 | 채희우 | sphagnum cushion |
| CN102293106A (en) * | 2011-01-09 | 2011-12-28 | 罗先财 | Method for cultivating hardy eucalyptus forests suitable for climates at north latitude of 26-30 degrees |
| CN103053614A (en) * | 2013-01-30 | 2013-04-24 | 张勇 | Tree euthanasia medicine |
| CN104186224A (en) * | 2014-08-25 | 2014-12-10 | 内蒙古农业大学 | Standing tree physiological drying method based on transpiration |
| US20140369758A1 (en) * | 2007-02-06 | 2014-12-18 | Oro Agri, Inc. | Compositions and Methods for the Treatment of Soil |
| CN105394076A (en) * | 2015-10-30 | 2016-03-16 | 国网重庆市电力公司检修分公司 | Eucalyptusrobusta smith killing pesticide |
| CN106417356A (en) * | 2016-09-13 | 2017-02-22 | 张先文 | Method for quickly and effectively eradicating refractory plants in economic forest |
-
2018
- 2018-07-24 CN CN201810821530.0A patent/CN109156309A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933728A (en) * | 2004-02-10 | 2007-03-21 | Fmc有限公司 | Method for control of ground shoots of vines and other trunk vegetation |
| US20140369758A1 (en) * | 2007-02-06 | 2014-12-18 | Oro Agri, Inc. | Compositions and Methods for the Treatment of Soil |
| KR20090003009U (en) * | 2007-09-21 | 2009-03-25 | 채희우 | sphagnum cushion |
| CN102293106A (en) * | 2011-01-09 | 2011-12-28 | 罗先财 | Method for cultivating hardy eucalyptus forests suitable for climates at north latitude of 26-30 degrees |
| CN103053614A (en) * | 2013-01-30 | 2013-04-24 | 张勇 | Tree euthanasia medicine |
| CN104186224A (en) * | 2014-08-25 | 2014-12-10 | 内蒙古农业大学 | Standing tree physiological drying method based on transpiration |
| CN105394076A (en) * | 2015-10-30 | 2016-03-16 | 国网重庆市电力公司检修分公司 | Eucalyptusrobusta smith killing pesticide |
| CN106417356A (en) * | 2016-09-13 | 2017-02-22 | 张先文 | Method for quickly and effectively eradicating refractory plants in economic forest |
Non-Patent Citations (3)
| Title |
|---|
| 中国林学会: "《森林工业技术知识丛书-木材知识》", 30 November 1983, 中国林业出版社 * |
| 张文标等: "树木的生长应力", 《世界林业研究》 * |
| 张鸿秀等: "《迪林飞达草甘膦可溶性固体剂型应用技术》", 30 November 2005, 中国农业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110810050A (en) * | 2019-05-21 | 2020-02-21 | 新疆林科院经济林研究所 | Method for rapidly promoting healing of large saw cut of walnut tree |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105735844B (en) | A kind of log door and preparation method thereof | |
| Wardlaw et al. | Decay and other defects associated with pruned branches of Eucalyptus nitens | |
| Fahlvik et al. | Effects of precommercial thinning strategies on stand structure and growth in a mixed even-aged stand of Scots pine, Norway spruce and birch in southern Sweden | |
| CN102771354B (en) | Stump reserving bud afforestation method for cutting poplar industry raw material forest | |
| CN106553251A (en) | A kind of lower saw method for reducing quick-growing plantation Eucalyptuss Defects in sawn timber | |
| Bredenkamp et al. | Some effects of pruning on growth and timber quality of Eucalyptus grandis in Zululand | |
| CN105773759B (en) | A kind of drying means of roundwood | |
| CN109156309A (en) | A kind of felling method reducing Eucalyptus deformation and cracking | |
| Schönfelder et al. | Shrinkage of Scots pine wood as an effect of different tree growth rates, a comparison of regeneration methods. | |
| Poynton | The silvicultural treatment of eucalypt plantations in Southern Africa | |
| CN114711116A (en) | Mangosteen afforestation pruning method | |
| Kask et al. | Effect of growth conditions on wood properties of Scots pine (L.) | |
| Bujoczek et al. | Spruce regeneration on woody microsites in a subalpine forest in the western Carpathians | |
| Hardie | Defects in the wood of fast-grown Eucalyptus grandis in Zambia | |
| Kromhout et al. | The influence of short rotation forestry on wood production for sawnwood and veneer | |
| CN109220285A (en) | A kind of grafting seedlings-growing method of walnut sapling | |
| Nilsson et al. | Whole-tree utilization: A method of increasing the wood supply | |
| Saicane | Thinning strategies of birch in Latvia, with application in a newly established field experiment | |
| CN106508458A (en) | Method for promoting formation of phoebe zhennan heartwood | |
| Schweingruber et al. | Wood decay | |
| RU2067388C1 (en) | Conifer lumbering and working method | |
| Zalitis | The analysis of silver birch (Betula pendula roth.) stands in state and private forests in Latvia | |
| Malan | The wood quality of Pinus chiapensis (Mart.) Andresen grown in the Mpumalanga forest region | |
| Hong et al. | Treatability of Douglas-fir heartwood with ACZA or CCA: Effect of site, silvicultural practice, and wood properties | |
| McKinnell | Low pruning radiata pine |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190108 |
|
| RJ01 | Rejection of invention patent application after publication |