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    Wyświetlanie 1-5 z 5
    Tytuł:
    Ocena korytarzowej metody uprawy dębu (Quercus sp.) na przykładzie obiektów badawczych w nadleśnictwach Mircze i Kościan
    Evaluation of the corridor method for oak (Quercus sp.) cultivation using research objects in the Mircze and Koscian Forest Districts as an example
    Autorzy:
    Paluch, R.
    Gil, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1292277.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewa lesne
    dab
    Quercus
    uprawa korytarzowa
    ocena hodowlana
    hodowla lasu
    odnowienia lasu
    Nadlesnictwo Mircze
    Nadlesnictwo Koscian
    oak
    corridor method
    oak cultivation
    forest regeneration
    stand tending
    Opis:
    The corridor method of oak (Quercus sp) cultivation is an old, forgotten silvicultural method. It was developed around the turn of the 19th and 20th century on the south-eastern borders of Poland (Podole, Wołyń) and Russia and made use of other species such as hornbeam, linden and birch as a cover for oak, which is a tree species sensitive to frosts. The nowadays recurring phenomenon of oak disease initiated a search for silvicultural alternatives and thus the usefulness of reviving the corridor method for oak regeneration was investigated by examining existing tree stands established in this way. Our research plots were located in five young stands and two in mature as well as old stands. In the stands of the 2nd and 3rd age classes, the density of oaks was observed to be 1500 - 3500 /ha, which accounted for 30-50%. The density of oak in old stands (7th age class) was similar to model-predicted values. Furthermore, the corridor method gave very good production results as exemplified by the oak stands growing on the fresh broadleaved site, which had a very high stand quality index. In addition, the species composition was observed to diversify throughout these oak stands’ development, thus supporting arguments for the conservation and preservation of oak-hornbeam forests. To summarise, the prerequisites for the success of the corridor method are systematic cuts of young stands (forest cultures and thickets) to inhibit the growth of accompanying undesired species and limiting the number of grazing animals.
    Źródło:
    Leśne Prace Badawcze; 2018, 79, 1
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Owady minujące liście dębu szypułkowego Quercus robur L. w Bydgoszczy i okolicach
    Insects mining leaves of English oak Quercus robur L. in Bydgoszcz and its vicinity
    Autorzy:
    Wrzesińska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1293840.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    drzewa
    dab szypulkowy
    Quercus robur
    szkodniki roslin
    owady minujace
    wykaz gatunkow
    wystepowanie
    miasta
    Bydgoszcz
    okolice Bydgoszczy
    English oak
    mining insects
    Tischeria ekebladella
    Phyllonorycter heegeriella
    Opis:
    This research on the occurrence of insects mining leaves of the English oak Quercus robur was performed between 2011–2012 in Bydgoszcz and in nine neighbouring sites: seven in forest areas and two in an urbanized environment. The analysis of the gathered material revealed the occurrence of insects from three different orders, Coleoptera, Hymenoptera and Lepidoptera, and 10 families: Curculionidae, Tenthredinidae, Bucculatricidae, Coleophoridae, Eriocraniidae, Gracillariidae, Heliozelidae, Incurvariidae, Nepticulidae and Tischeriidae. In total, 21 insect species were collected from Q. robur; most of them at forest sites. A slightly lower number of species was recorded at Janowo, where oaks were growing on the edge of the forest in the vicinity of a transport route with heavy traffic. Even fewer taxa were observed in the vicinity of urbanised areas; in the city park on the Bydgoszcz Canal and in Fordon. The most abundant species on the English oak were Tischeria ekebladella (Bjerk.) and Phyllonorycter heegeriella (Zell.).
    Źródło:
    Leśne Prace Badawcze; 2017, 78, 4
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kwietnica okazała Protaetia speciosissima (Scopoli, 1786) (Coleoptera: Scarabaeidae) – chroniony gatunek saproksyliczny drzewostanów dębowych w Polsce
    Flower chafer Protaetia speciosissima (Scopoli, 1786) (Coleoptera: Scarabaeidae) – protected saproxylic species of oak stands in Poland
    Autorzy:
    Plewa, R.
    Hilszczański, J.
    Jaworski, T.
    Tarwacki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1312844.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    entomologia lesna
    drzewostany debowe
    owady saproksyliczne
    gatunki chronione
    kwietnica okazala
    Protaetia speciosissima
    wystepowanie
    saproxylic beetles
    oak stand
    forest strata
    yellow pan traps
    vertical distribution
    Opis:
    The paper presents the results of our studies on the preferences of the flower chafer, Protaetia speciosissima (Scopoli, 1786). The studies were carried out in 2009-2010 in the Forest Districts of Hajnówka, Krotoszyn, Łochów, Piñczów, and Puławy, located in various regions of Poland. Barrier traps consisting of a Moericke's trap and a Malaise's trap combined with a barrier of fine net were used to collect beetles. Traps were installed at two heights in over 100 years old oak stands, with the upper level in the canopy layer (mean height of 20.5 m) and the lower level adjacent to the tree trunk (mean height of 4,5 m). During two-year study, we collected a total of 328 specimens of P. speciosissima, 299 from the upper- and 29 from the lower forest layer. Thus, we confirmed strong preferences of the adult of P. speciosissima for the canopy layer in oak stands. Furthermore, our observations on phenology indicate that the second half of June and all of July are the months with the highest population density of P. speciosissima. This paper also proposes modes of action for conservation of the species.
    Źródło:
    Leśne Prace Badawcze; 2014, 75, 3; 225-229
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Poziom chlorofilu a i b w liściach krzewów podszytowych w grabowo-dębowych lasach lasostepu Ukrainy Zachodniej
    The content of chlorophyll a and chlorophyll b in leaves of undergrowth species in hornbeam-oak forest stands of the forest-steppe zone in Western Ukraine
    Autorzy:
    Zaika, V.
    Bondarenko, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1292298.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    drzewostany grabowo-debowe
    podszyt
    krzewy
    liscie
    chlorofil a
    chlorofil b
    poziom chlorofilu
    lasostep
    Ukraina Zachodnia
    shrubs
    plastid pigments
    chlorophyll a
    chlorophyll b
    hornbeam-oak forest stands
    forest-steppe zone of western
    Ukraine
    Opis:
    In this study, the biosynthesis of the plastid pigments chlorophyll a and b was examined for the most common shrubs in hornbeam-oak forest stands of the Western forest-steppe zone of Ukraine. The characteristics of the pigments’ biosynthesis were determined in terms of plant species, vegetation period and growth conditions (under canopy cover and out in the open). The gathered data on the changes of the pigment complex with respect to the examined variables confirms the sensitivity of plastid pigment biosynthesis to environmental factors.
    Źródło:
    Leśne Prace Badawcze; 2018, 79, 1
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wzrost odnowień na gruntach porolnych prowadzonych w ramach przebudowy drzewostanu metodą sztucznych luk
    Growth of broadleaved species on post-agricultural lands introduced during the process of stand conversion with a use of artificial gaps
    Autorzy:
    Zachara, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1291881.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    grunty porolne
    hodowla lasu
    odnowienia lasu
    sosna zwyczajna
    Pinus sylvestris
    huba korzeni
    przebudowa drzewostanow
    luki drzewostanowe
    gatunki domieszkowe
    dab bezszypulkowy
    buk zwyczajny
    lipa drobnolistna
    przebudowa drzewostanu
    dąb bezszypułkowy
    Scots pine
    root-rot fungus
    forest conversion
    sessile oak
    common beech
    small-leaved lime
    Opis:
    This paper presents results on the restoration of Scots pine stands established on post-agricultural lands undergoing conversion into mixed stands. Sessile oak (Quercus petraea), common beech (Fagus sylvatica) and small-leaved lime (Tilia cordata) seedlings were planted in artificially created gaps (0,02 ha to 0,05 ha each) cut in six experimental plots (Forest Districts: Bielsk, Krynki, Sobibór, Dobieszyn, Skrwilno and Łupawa) located in 20–25-years-old pine stands. The experimental plots were spread across northern, central and eastern Poland and affected by root-rot fungus (Heterobasidion annosum). Nine years after planting, the number of individual trees and shrub species, their height sum and average height were calculated for fenced artificial gaps (LSO) as well as non-fenced artificial gaps (LSN) and compared to natural gaps (LN) and non-disturbed neighboring stands (D). Results were calculated separately for the planted species (oak, lime and beech) but combined for all other species. The results indicate satisfactory restoration in all of the investigated plots except in Krynki, which is located in a relatively poor site. Significant differences appeared between height sum as well as average height of planted species in fenced compared to non-fenced gaps. Furthermore, in both, natural and artificial gaps, the species composition of the young generation was enriched with natural regeneration of pioneer species, mainly silver birch (Betula pendula), rowan (Sorbus aucuparia) and aspen (Populus tremula).
    Źródło:
    Leśne Prace Badawcze; 2019, 80, 4
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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