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Wyszukujesz frazę "planowanie hodowlane" wg kryterium: Temat

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    Tytuł:
    Planowanie hodowlane w rębni gniazdowej przerębowej na przykładzie obiektu położonego w Puszczy Białowieskiej
    Lesovodstvennoe planirovanie v gnezdovojj postepnnojj rubke na primere ob''ekta raspolozhennogo v Belovezhskojj Pushhe
    Silvicultural planning in shelterwood group system on an example of the tract situated within the Bialowieza Primeval Forest
    Autorzy:
    Bernadzki, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/814153.pdf
    Data publikacji:
    1971
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Bialowieska
    zagospodarowanie lasu
    rebnie
    rebnie gniazdowe przerebowe
    planowanie hodowlane
    Źródło:
    Sylwan; 1971, 115, 01
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie odbiorników nawigacji satelitarnej klasy turystycznej w szczegółowym planowaniu hodowlanym
    Autorzy:
    Bolibok, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1019729.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    bledy pomiarowe
    zastosowanie
    planowanie hodowlane
    nawigacja satelitarna
    lesnictwo
    odbiorniki GPS
    satellite navigation
    gps receiver
    silvicultural planning
    measurement error
    Opis:
    In detailed silvicultural planning, good knowledge of the internal situation (e.q. placement of advanced regeneration) in stand survey units is necessary. Information gathered in the framework of regular forest survey is not sufficient, specifically when natural stand regeneration is planned. The application of GPS is a practical, inexpensive, quick to operate technology of collecting information required for silvicultural planning and positioning spatial elements of a cutting system. As silviculture needs do not require such a high accuracy as in the case of positioning of stand survey units, it seems that the application of tourist−class GPS receivers is an optimum solution. This class equipment is inexpensive and easy to operate. The knowledge about possibilities which GPS receiver provides on the one hand and the awareness of limitations that forest environment creates for GPS measurements helps make a reliable draft of a stand's internal situation.
    Źródło:
    Sylwan; 2005, 149, 07; 37-50
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie dolnych warstw drzewostanu w planowaniu hodowlanym
    Under-canopy layers in silvicultural planning
    Autorzy:
    Żybura, H.
    Pewniak, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/989497.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    planowanie hodowlane
    drzewostany sosnowe
    drzewostany wielopietrowe
    podszyt
    dab
    Quercus
    odnowienia podokapowe
    jakosc hodowlana
    scots pine
    oak
    silvicultural value
    multi−layer stands
    Opis:
    Currently observed climate change creates favourable conditions for the development of not only deciduous species (oak and beech), but also some coniferous (e.g. fir). In the Scots pine stands growing on fertile forest site types one can observe the dynamic development of the under−canopy layers composed of those species. Oak or beech saplings are often characterized by good silvicultural value. Also silver fir creates a well−developed cover under Scots pine trees. Beech and fir as the most shade−tolerant tree species are able to handle the conditions under Scots pine. They can grow for a long time under the cover without damage to their height or diameter growth. Especially, a dynamic growth of oaks can often be observed on fresh mixed coniferous and fresh mixed broadleaved habitats. Oak layers in Scots pine stands are generally created in the way of natural regeneration with remarkable contribution of the jays, which spread the seeds even at considerable distances from the old trees. The corresponding intensity of thinnings supports to shape the proper silvicultural value of such under−canopy storeys. Observations on growth of such stand layers in the Scots pine stands in eastern and central Poland consider the desirability of including them in the next generation of stands. Their presence contributes to improvement of the biological stability of the stands, and also leads to increased productivity. By implementing to the forest practice the model of semi−natural silviculture, one wants to consider the possibility of using the saplings currently existing under the Scots pine as a component of the future stand. Knowledge about the silvicultural value and the impact on growth of lower layers will enable to develop the principles of proper cultivation of the multi−storey stands.
    Źródło:
    Sylwan; 2016, 160, 10; 815-821
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ewolucja roli i aktualnych zadań urządzania lasu
    Evolution of the role and current tasks of forest management planning
    Autorzy:
    Borecki, T.
    Stępień, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/987032.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    gospodarka lesna
    gospodarka zrownowazona
    funkcje lasu
    urzadzanie lasu
    planowanie hodowlane
    uzytkowanie lasu
    uzytkowanie rebne
    plany urzadzeniowe
    sustainable forestry
    evolution of forest planning tasks
    adaptability of forest management
    Opis:
    The paper presents the history of approaches to forest management derived from the idea of forest sustainability, as well as its inspirational role in the formulation of the concept of sustainable development of forests. The promotion of this concept in forestry is the responsibility of forest management planning through the modification of forest management plans and adaptation of the principles of conducting forest management to changing realities. Changes in planning, both in terms of time and space, are necessary especially because of the reconsideration of the range and significance of forest functions. The development of the ‘normal forest’ model and management unit−level methods of forest planning was a key event in the history of forestry in Europe. The development of knowledge, as well as economic, technological and social changes were conducive to the emergence of new theories on the production intensification and to use the economic criteria for determining the rotation age. This also referred to the need to develop an appropriate forest structure to ensure the sustainable use of forest resources. As regards determination of the harvest level, the development of the stand−level method of forest management published by Judeich in 1871 is worth noting. Recent results of the research on forest habitat and productivity have revealed the problem of forest species composition and the importance of forest tending activities. Another group of research achievements cover the new systems of determining the allowable cut taking into account forest maturity and sustainability criteria. In the multiple−use forest model being implemented in Poland, forest utilization is to be treated as a realization of all forest functions expected by society. Accordingly, two functions of forest use can be distinguished − the temporary function aimed to satisfy the current demand for timber, and the strategic function to secure a relatively steady, long−term timber supply, as well as to improve the condition of forest resources. The idea of the modification of the principles of deter− mining the volume of harvest, meeting the set requirements, is a continuation of the above issues. The changes taking place in the conditions of the planning process in forestry over the last decades have caused its continuous extension in terms of range and interdisciplinary areas. The principles of forest use, renewal, tending and protection create a logical and chronological sequence of events showing the complexity of the problems that appear at the stage of planning and in the forest district practice. The current problem at the stage of forest planning is the effect of climate changes on forest ecosystems and possible measures to counteract them. When creating forest management plans, the adaptation activities related to forest management are gaining importance.
    Źródło:
    Sylwan; 2017, 161, 03; 179-188
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Planowanie hodowlane z wykorzystaniem metody BDq w drzewostanach świerkowych na siedliskach bagiennych
    Silvicultural planning in spruce mire forests by the means of the BDq method
    Autorzy:
    Drozdowski, S.
    Andrzejczyk, T.
    Bielak, K.
    Buraczyk, W.
    Gawron, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/990869.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    siedliska lesne
    siedliska bagienne
    drzewostany swierkowe
    swierk pospolity
    Picea abies
    struktura drzewostanu
    planowanie hodowlane
    metoda BDq
    close−to−nature silviculture
    equilibrium model
    norway spruce mire forest
    silvicultural planning
    Opis:
    This paper addresses problems associated with the silvicultural planning in the Norway spruce mire forests (Sphagno girgensohnii−Piceetum Polak. 1962) that are characterized by an uneven−aged structure and a high degree of irregularity at small scale. Based on detailed inventory using 30 permanent circular sample plots in two control units located in the Augustów Forest (NE Poland), the BDq method was employed for determining future silvicultural activities of the current forest management cycle. The equilibrium models are based on diameter distributions and have the following parameters, depending on site conditions: B=28 m²/ha; q−factor=1.32 and D=51 cm in the case of poorer forest site type (S.−P. typicum) and 55 cm more fertile one (S.−P. thelypteridetosum).
    Źródło:
    Sylwan; 2014, 158, 10; 733-742
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Planowanie hodowlane w drzewostanach jodłowych o złożonej strukturze z wykorzystaniem metody BDq w Nadleśnictwie Zagnańsk
    Silvicultural planning in complex structures of silver fir by means of the BDq method in Zagnańsk Forest District
    Autorzy:
    Drozdowski, S.
    Bielak, K.
    Buraczyk, W.
    Gawron, L.
    Jaros, R.
    Żybura, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/990985.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    drzewostany jodlowe
    jodla pospolita
    Abies alba
    planowanie hodowlane
    struktura drzewostanu
    ksztaltowanie struktury
    metoda BDq
    close−to−nature silviculture
    complex stand structure
    multifunctional forestry
    silver fir
    silvicultural planning
    Opis:
    The paper deals with problems concerning silvicultural planning in silver fir stands in Zagnańsk Forest District (central Poland) that are characterized by complex structure. Based on a detailed inventory using 98 permanent circular sample plots in four control units the BDq method was employed for determining the future silvicultural activities of the current forest management cycle. The equilibrium model is based on diameter distributions and has the following parameters: B=35 m²/ha; D=63 cm and q−factor=1.28.
    Źródło:
    Sylwan; 2014, 158, 09; 651-660
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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