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634.9
C 19

    Reproduction on cut-over and burned-over land in Canada
[Текст] : монография. 92. Reproduction on cut-over and burned-over land in Canada / R.H. Candy ; Canada Department of Resources and Development Forestry Branch. - Ottawa : Minister of resources and Development, 1951. - 224 с. : ill. + tables. - (Forest Research Division Silvicultural Research Note ; 92). - Библиогр: p.94-97. - 10.00 р.
УДК

Кл.слова (ненормированные):
methods ,results, discussion and conclusions,Canada

Аннотация: Much concern has been expressed by foresters as to what is happening on our cut-over or burned-over forest lands. Forest Research Division of the Forestry Branch prepared plans for a survey to cover the major forest regions east of Rocky Mountains, and conducted the necessary field work over a three-year period in 1946, 1947, and 1948. The survey of the present state of reproduction was considered as the first of three stages in a co-ordinated study of the entire problem of regenerating forest lands after disturbance

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634.9
H 81

    Forest regeneration in Ontario
[Текст] : based on a review of surveys conducted in the province during the period 1918-1951 / R.C. Hosie ; University of Toronto. - Toronto : Uiversity of Toronto Press, 1953. - 134 с. : ill. - (University of Toronto Forestry Bulletin : based on a review of surveys conducted in the provenance during the period 1918-1951 / University of Toronto ; 2). - 0.40 р.
Библиогр: p.
УДК

Кл.слова (ненормированные):
forest regeneration -- survey -- forest types

Аннотация: The renewability of the forest is an important factor affecting our long-term economy, as it provides the basis for the sustained or continious yield of forest products from land best suited to this crop. Success in forest management depends primarily on the establishmentn of adequate regeneration of disirable species as soon as possible after the mature forest is cut. Tis therefore important in preparing to implement a sustained-yield management policy to know how well this requirement is being met under present operating conditions, and it was with the oject of having a comprehensive statement on the situation in Ontario that the Research Council of Ontario requested Prof. Hosie to review and report on the regeneration surveys that had been undertaken by various government and industrial agebsies in this Province.

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634.9
K 77

    Lodgepole pine (Pinus contorta Dougl.)
[Текст] / E.S. Kotok ; USDA Forest Service. - Ogden : U.S. Department of Agriculture, 1971. - 7 с. : рис. - (U.S. Department of Agriculture American Woods ; FS-253). - eng. - Библиогр.: с. 7. - 0.08 р.
УДК

Кл.слова (ненормированные):
lodgepole pine -- growth and properties -- distribution

Аннотация: Lodgepole pine is one of the most widespread softwood species in the Western United States and Canada. During the past quarter century its utilization has increased so greatly that it now nearly equals the cut of Western white pine. Lodgepole has the same soft-textured characteristics as ponderosa and the white pines and sometimes is substituted for them. It is used principally for framinf material for light construction, for interior paneling, exterior trim,posts, poles, railway ties, and specialty items. Lodgepole pine has fine pulping properties and soon may be used heavily for manufacturing pulp and paper

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634.9m
B45

    Developing an ideal growing stock for tolerant hardwoods in Central Ontario
[Текст] : доклад, тезисы доклада / A.B. Berry. - Ottawa : Department of Forestry, 1963. - 10 с. : рис. - (Forest Research Branch Contribution ; 539). - eng. - Библиогр.: с. 9-10. - 0.10 р.
УДК

Кл.слова (ненормированные):
Wood volume%Growing stock -- growing stock

Аннотация: A brief history is given for a 47-acre woodlot successively high-graded for the best timber, grazed by cattle, cut haphazardly for fuelwood then placed under management with the object of developing a balanced stand structure for the maximum production of wood volume under the selection system. Four stem-distributions are being tested, two levels of growing stock and two upper diameter limits, combined with two cutting cycles. From the analysis of the results the best, or ideal, stand structure will be determined for this area

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634.9T
G 95

    Variations in log-scale deductions for douglas-fir in the B.C. Interior
[Текст] / D.C. Gunn, G.R. Bailey, J.A. McIntosh. - [Б. м.] : Reprinted from BRITISH COLUMBIA LUMBERMAN, 1966. - 4 с. : tables. - Библиогр: p. 4. - 0-08 р.
УДК

Кл.слова (ненормированные):
tree size%tree age%forest zone

Аннотация: The information presented in this report is based on a sample of the 2,010 logs obtained from 519 mature and over-mature trees, representative of the range in tree size and quality of Interior of British Columbia Douglas-fir being cut for dimension lumber


Доп.точки доступа:
McIntosh, J.A.; Bailey, G.R.
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634.9T
S 31

    A method of estimating site quality of logged land in the Coastal Douglas Fir belt of British Columbia
[Текст] / R.L. Schmidt ; British Columbia Forest Service. - Victoria : Department of Lands and Forests, 1954. - 7 с. + tables. - (Research Notes / British Columbia Forest Service ; 27). - 0-50 р.
УДК

Кл.слова (ненормированные):
diameter growth%site index

Аннотация: In recent years there have been many advances towards the practice of forestry in British Columbia. Among these have been attampts at regulating the annual cut in accordance with the principles of sustained yield. This has drawn attention to methods of assessing the growth potentialities of logged lands. This report gives a practical method for estimating the site-quality of logged land in terms of site index and of forest associations, either of which may be of value to the forester. More field data have gone into the preparation of a method for predicting forest associations than into the site-index method, and the former has a higher degree of success in prediction. Four site classes, however, have been predicted in terms of site index as compared to three forest associations. It should be stressed that this method of estimating site-quality, by means of stump diameter-growth measurements, is not an exact one, but merely serves as a rough guide toward the mapping of logged land.

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06
S 92

    Wetland restoration
[Текст] : a survey of options for restoring peatlands / E. Lode ; Swedish University of Agricultural Sciences Faculty of Forestry. - Uppsal : Swedish University of Agricultural Sciences Faculty of Forestry, 1999. - 30 с. : ill. - (Studia Forestalia Suecica, ISSN 0039-3150 ; 205). - Библиогр: p. 16-19%ISBN 91-576-5557-X. - 10-00 р.
УДК

Кл.слова (ненормированные):
bog%fen%mire restoration%glossary

Аннотация: In spite of increased attention to wetland conservation folowing the Ramsar Convention on wetland of International Importance, the peat-harvesting industry in many countries is still intersted in the further exploitation of peatlands. In some of the most industrialised countries, all natural peatlands have already been lost. In others, only small areas of native peatland remain. Among other possible uses for cut-over peatlands, peatland restoration is one: there is an urgent need for the development of measures for regenerating peat-accumulation processes. The redevelopment of a fen or bog peat landscape is a long-term process, which will probably take centuries. The restoration of any peatland may therefore be considered successful if the outcome is development and growth of plant communities able to produce peat.

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674
A71

    Growth stresses and strains in trees
[Text] : монография / R.R. Archer. - Berlin ; Heidelberg ; New York et al : Springer-Verlag, 1987. - 240 p. : рис., табл. - (Springer Series in Wood Science). - eng. - Библиогр.: с. 231-236. - ISBN 3-540-16406-5 : 77.00 р.
УДК

Кл.слова (ненормированные):
wood -- effect of stress -- plants

Аннотация: This bbok treats the theoretical, experimental, and practical aspects of the residual stresses that develop in trees as they grow.The author discusses the interpretation of experimental measurements on standing trees and logs. Of particular importance for the wood industry are the results on stress concentrations associated with various cutting procedures. These high stresses are the probable cause of the splitting of log ends and the shattering of planks cut from green logs. Specialists in fields ranging from tree physiology to wood mechanics will benefit from the combined biological and mechanical approach of this book and the new research opportunities that it discloses

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674.1
F35

    The rotary cutting of veneer from natural-grown red pine
[Text] : научное издание / O. Feihl, V. Godin. - Ottawa : The Queen's Printer, 1969. - 17 p. : рис., табл. - (Forestry Branch, Department of Fisheries and Forestry, Departmental Publication ; № 1254). - eng. - Библиогр. в конце ст. - 0.20 р.
УДК

Кл.слова (ненормированные):
peeling -- treatment -- veneer

Аннотация: This publication presents the results of peeling studies conducted at the Ottawa Laboratory on red pine logs from the Ottawa valley. Red pine can be rotary-cut without prior heat treatment when using a knife with a special bevel which resists damage caused by knots. Heating the logs before peeling does not appreciably improve the quality of veneer. When logs are peeled on a lathe equipped with a fixed bar there is a danger of the log jamming in the cut and of the chucks chewing the log ends. The quality of veneer produced with a roller is similar to that of veneer peeled with a fixed bar


Доп.точки доступа:
Godin, V.
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06
S92

    Forces and damage involved in the hydraulic shearing of wood
[Text] = Krafter och skador vid hydraulisk tradklippning : научное издание / C. Kempe. - Stockholm : Skoghogskolan, 1967. - 38 p. : рис. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 55). - eng. - Библиогр.: с. 36. - 0.10 р., 0.40 р.
УДК

Кл.слова (ненормированные):
equipment and procedure -- analysis -- damage

Аннотация: The investigation was carried out on squared fresh spruce and with a knife against a static anvil. The edge and the anvil were parallel to each other and parpendicular to the direction of cut. The thickness of the knives was 5-10 mm, the edge angles were 30-60 and the cutting speed 4-22 cm/sec. The width of anvil was 7.5 cm. All shearing was perpendicular to the grain

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06
S92

    Studies on the accessibility of forest and forest land in Sweden
[Text] = Studier over skogens och skogsmarkens avsattningslagen : научное издание / G. Segebaden. - Stockholm : Skogshogskolan, 1969. - 64 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 76). - eng. - Библиогр.: 51-54. - 0.90 р.
УДК

Кл.слова (ненормированные):
methods -- cost factors -- classification of forest inventory

Аннотация: The paper deals with the concept "accessibility", the problems in which accessibility is relevant; general methods, collection of data, results; cost factors, location and terrain factors, stand and tree factors, factor analysis; problems, general description of accessibility, accessibility of potential and actual cut, a comparison between accessibility in northern and southern Sweden, the extension of the road network, optimalisation of the transport costs

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06
S92

    The logging policy of private woodlot owners: An analysis of a data sample by means of the AID method
[Text] = De enskilda skogsagarnas avverkningspolicy: En analys av ett datamaterial med hjalp av AID-metoden : научное издание / L. Lonnstedt. - Stockholm : Skogshogskolan, 1977. - 28 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 144). - eng. - Библиогр.: с. 28. - ISBN 91-38-03948-6 : 2.40 р.
УДК

Кл.слова (ненормированные):
method -- factors -- cut -- logging intensity

Аннотация: The aim of this study was to analyse a multivariate and non-experimental data sample to determine the factors that influence the logging policy of private woodlot owners in Sweden. The sample was obtained from interviews with some 2 000 woodlot ownwers. The method of analysis is known as the Automatic Interaction Detector (AID). For a given population, this method can be used to explain the variation in a creterion variable (dependent variables).

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06
S92

    Cradle type multi-stem delimber
[Text] : научное издание / B. Dahlin. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1991. - 31 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 185). - eng. - Библиогр.: с. 30-31. - ISBN 91-576-4493-4 : 3.00 р.
УДК

Кл.слова (ненормированные):
delimbing -- multi-stem -- processing -- machine

Аннотация: Multi-stem delimbing devices may rationalise processing of small-sized trees. Different types of delimbing device are reviewed. Some basic features of cradle delimbing were studi ed experimentally, some separately. As standard for delimbing quality, the proportion of branches cut shorter than a specified value is proposed. Acceptable delimbing quality was defined in the study as 75 per cent of the branches cut shorter than 25 mm. Efficiency was measured as the time required to achieve the defined delimbing quality. Loss of stemwood was measures simultaneously with delimbing efficiency. The delimping process followed an 'S'-shaped function.

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06
S92

    Stump heights and sprouting of European aspen, pubescent and silver birches, and damage to Norway spruce and Scots pine following mechanical and brush saw cleaning
[Text] : научное издание / T. Johanson. - Uppsala : The Swedish University of Agricultural Sciences, College of Forestry, 1992. - 15 p. : рис., табл. - (Studia Forestalia Suecica, ISSN 0039-3150 ; № 186). - eng. - Библиогр.: с. 15. - ISBN 91-576-4582-5 : 2.00 р.
УДК

Кл.слова (ненормированные):
sprouts -- stump height -- growth -- damage -- mechanical cleaning

Аннотация: The aim of this study was to compare sprouting of European aspen and of pubescent and silver birch following mechanical cleaning, and motor-manual cleaning by brush saw. Damage of conifers caused by the two methods was also studied, both immediately after treatment and 5-6 year later. Sprouting following mechanical cleaning on snow was studied in one trial. At the outset of this study, a question of interest was whether stumps cut by machine are affected by rot more quickly than stumps cut by brush saw. However, field observations alone were made of this.

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06
F54

    Acta Forestalia Fennica. 71
[Text] : publication of the Society of Forestry in Finnland. - Helsinki : Finska Forstsamfundet, 1961. - 249 с. : рис., табл. - fin. - 1.00 р.
УДК

Кл.слова (ненормированные):
pine stands -- cut -- growth -- density

Аннотация: The publication deals with allowable cut and its calculation; structure and development of pine stands; possibility of calculating results; volume and increment calculation; mensurational density of a stand; influence of forest drainage on growth and removal

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06
F54

    Acta Forestalia Fennica. 74
[Text] : publication of the Society of Forestry in Finnland. - Helsinki : Finska Forstsamfundet, 1962. - 304 с. : рис., табл. - fin. - Библиогр. в конце ст. - 1.00 р.
УДК

Кл.слова (ненормированные):
development -- tree seedlings -- buent-over forest land -- Kulturboden -- cutting budgetpine stands -- growing stock

Аннотация: The book deals with emergence and initial development of tree seedlings on burnt-over forest land;on development of young sown pine stands; the allowable cut in the state forests in Finland and conditionsf for its realization; the cutting budget for a desirable growing stock; sales of newsprint in Finland, 1949-1959.

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06
F54

    Non-industrial private forest landowners' choices of timber management strategies and potential allowable cut: case of Pohjois-Savo
[Text] : научное издание / M. Pesonen. - Helsinki : The Finnish Society of Forest Science-The Finnish Forest Resaerch Institute, 1995. - 31 p. : рис., табл. - (Acta Forestalia Fennica, ISSN 0039-3150 ; № 247). - eng. - Библиогр.: с. 30-31. - ISBN 951-40-1468-5 : 3000.00 р.
УДК

Аннотация: In the study , the potential allowable cut in the district of Pohjois-Savo-based on the non-industrial private forest landowners' (NIPF) landownwrs' choices of timber management strategies- was clarified. Alternative timber mangemnt strategies were generated, and the choices and factors affecting the choices of timber management strategies by NIPF landowners were studied. The choices of timber management startegies were solved by maximizing the utility functions of the NIPF landowners. The parameters of the utility functions were estimated using the Analytic Hierarchy Process (AHP). The most prefered strategy obtained was "sustainability". The second was "finance" and the third was "saving". Based on the choices of timber management strategies, regular cutting budgets can be calculated more realistically than before.

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06
F54

    Non-industrial private forest landowners' choices of timber management strategies: Genetic algorithm in predicting potential cut
[Text] : научное издание / M. Pesonen, A. Kettunen, P. Rasanen. - Helsinki : The Finnish Society of Forest Science-The Finnish Forest Resaerch Institute, 1995. - 28 p. : рис., табл. - (Acta Forestalia Fennica, ISSN 0039-3150 ; № 250). - eng. - Библиогр.: с. 26-27. - ISBN 951-40-1491-X : 1500.00 р.
УДК

Кл.слова (ненормированные):
genetic algorithms -- strategic dicision making -- timber management strategies

Аннотация: The aim of this study is to predict non-industrial, private forest landowners' potential cut using a genetic algorithm and linear regression. Furthermore, the factors affecting the landownwers' strategic dicision in NIPF management planning are studied. A genetic algorithm is used to induce a set of production rules predicting NIPF landowners' preferred timber management strategies. The rules are based on the landowners' objectives and characteristics of the landowners and their forest holdings. The dependent variable is preferred timber management strategy, potential cut, described as average annual removals of the first five-year planning period (m3/ha/a)/ The performance of genetic-based machine learning is compared to more traditional statistical analysis. The theoretical framework of study is presented in Fig. 1.


Доп.точки доступа:
Kettunen, A.; Rasanen, P.
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634.9
W80

    Standortsfaktoren und Struktur eines temperierten Regenwaldes der chilenischen Kustenkordillere
[Text] : монография / C. Woda. - Frankfurt am Main : J.D. Sauerlander's Verlag , 2003. - 204 s. : рис., табл. - (Schriften aus der Forstlichen Fakultat der Universitat Gottingen und der Niedersachsischen Forstlichen Versuchsanstalt, ISSN 0344-5666 ; Bd. 137). - ger. - Библиогр.: с. 176-192. - ISBN 3-7939-5137-5 : 150.00 р.
УДК

Кл.слова (ненормированные):
Geologie -- Klima -- Boden

Аннотация: The book deals with site characteristics and stand structure of a temperate rain forest in the mountain ranges on the Chilean coast. This rare forest type has a high percentantage of edemic species which are endangered by exploitation and expansion of forest plantations. The research was carried between 2000- and 2001 in the state protected area "Reserva National Valdivia" in the X Region of Chile "Los Lagos". The recording of vegetation and stand structure was carried out in two secondary forest stands each being made up of differernt species. So that the site could be characterised air temperature, precepitation in and outside the stand and fog precipitation were measured. Nutrient and water regimes in the soil were also recorded. Finally erosion was studied in the natural forest and on a clear cut area of pine plantations bordering the forest area.

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06
F54

    Suometsien puunkorjuu
[Text] = Forest harvesting on peatlands : научное издание / O. Eeronheimo. - Helsinki : Metsantutkimuslaitos, 1991. - 29 с. : рис., табл. - (Folia Forestalia ; № 779). - fin. - Библиогр.: с. 26-28. - ISSN 0015-5543. - ISBN 951-40-1173-2 : 1.50 р.
УДК

Кл.слова (ненормированные):
forest harvesting -- logging -- peatland forestry -- wetlands

Аннотация: In Finland there are 9 mill. ha of peatlands classified as forestry land. About half of the peatlands have been drained for higher wood production. Of the total productive forest area - 20 mill. ha - peatland forests account for a quarter. The importance of peatland forests is increasing. The allowable cut in peatland forests has been increased from about 5 mill. m3 per annum to about 9 mill. m3/a through drainage and intensified silvicultural measures.

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