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    Wyświetlanie 1-7 z 7
    Tytuł:
    Sezonowa dynamika zgryzania i jego wpływ na wzrost sadzonek gatunków liściastych w pierwszym roku po założeniu uprawy
    Seasonal dynamics of deer browsing and its impact on deciduous saplings during first year after planting
    Autorzy:
    Nasiadka, P.
    Lipski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1018509.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zgryzanie
    lowiectwo
    wzrost roslin
    drzewa lisciaste
    sadzonki
    dynamika zgryzania
    lesnictwo
    szkody lowieckie
    uprawy lesne
    browsing
    damage by game animals
    seasonal dynamics of browsing
    broadleaved species
    damage survey
    Opis:
    The lack of knowledge about seasonal dynamics and impact of deer browsing on deciduous saplings in plantations in managed forests in Poland raises difficulties in assessing the impact of cervids on forests and in selecting effective methods for protecting plantations against damage caused by deer. The studies covered 1129 saplings of sycamore, oak, beech, linden and birch species that were planted on the unfenced sites accessible for animals and fenced sites left for comparison.
    Źródło:
    Sylwan; 2006, 150, 05; 3-15
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przydatność Emolu Plus BTX LA do ochrony sosny zwyczajnej przed zimowym zgryzaniem przez jeleniowate
    The usefulness of repellent Emol Plus BTX LA in Scots pine saplings protection against winter browsing by deer
    Autorzy:
    Nasiadka, P.
    Pudełko, M.
    Umiński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1023356.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    ochrona roslin
    Emol Plus BTX LA
    skutecznosc
    ochrona lasu
    sosna zwyczajna
    lesnictwo
    repelenty
    Pinus sylvestris
    drzewa lesne
    emol
    emol plus btx la
    scots pine
    pinus sylvestris
    browsing
    forest protection against wildlife
    damage by widlife.
    Opis:
    The paper provides study results on the efficacy of Emol Plus BTX LA repellent used for the protection of Scots pine saplings against browsing by deer. Emol Plus BTX LA contains coarse−grained filler – calcium carbonate and denatonium benzoate (BTX) as active substance. The efficacy of both Emol Plus BTX LA and standard repellents were found to be high.
    Źródło:
    Sylwan; 2004, 148, 10; 59-66
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Żerowanie konika polskiego w strefie brzegowej siedlisk leśnych o różnym zwarciu koron
    Browsing of the Polish koniks within the forest edge of habitats with various canopy closure
    Autorzy:
    Klich, D.
    Grudzińska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/989672.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Roztoczanski Park Narodowy
    koniki polskie
    zerowanie
    ekotony
    ekoton las-pastwisko
    siedliska lesne
    bor mieszany
    ols porzeczkowy
    bor bagienny
    zgryzanie
    intensywnosc zerowania
    horse
    foraging
    ecotone
    browse
    shrubs
    Opis:
    The study assessed the intensity of Polish konik browsing in mixed coniferous forest (BM), alder swamp forest (OL) and pine swamp forest (BB) of different canopy closure and shrub or ground vegetation cover. The study was conducted in Polish konik enclosure situated in the Roztoczański National Park (eastern Poland) in August 2011. We examined mean browsing intensity and the tendency of horses to browse along 100 m zone from the pasture. The field study was conducted at three parallel transects set in 40 m intervals in each analysed forest habitat, starting at the forest edge and oriented towards the forest interior. Along the transects, 5×2 m plots were established in 10 m intervals. Within each plot the untouched current twigs and twigs browsed by koniks (up to 2 m above the ground) were counted separately, and categorized by a tree and shrub species. For each species 30 samples of complete twigs and twigs browsed by koniks were collected. Twigs were dried by 72 h in 60°C and weighted with accuracy up to 0.001 g. We estimated the dry mass of shoots available within the plot and taken by horses. Generally, koniks were using each studied forest stand proportionally to the mean browse mass. A factorial regression indicates that regardless to the available mass in a given forest stand, horses foraging intensity towards the forest interior was varying significantly. Koniks entered further into the forest the more willingly the more open the forest canopy was. Openness of the forest habitat could indirectly influence the pattern of forest penetration by horses, because of the grazed ground vegetation there.
    Źródło:
    Sylwan; 2016, 160, 01; 49-56
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring uszkodzeń spowodowanych przez jeleniowate w młodych drzewostanach i odnowieniach Gorczańskiego Parku Narodowego
    Monitoring of the deer-related damage to the young stands and regeneration in the Gorczanski National Park
    Autorzy:
    Miścicki, S.
    Żurek, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/989815.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy
    Gorczanski Park Narodowy
    drzewostany mlode
    odnowienia lasu
    odnowienia podokapowe
    szkody w lesie
    uszkodzenia drzew
    szkody lowieckie
    jeleniowate
    monitoring
    bark−stripping
    browsing
    district
    impact
    protection
    stem
    terminal shoot
    Opis:
    Assessment of the impact of large herbivores on young generation of trees in the protected forests can support decisions about whether to intervene in natural ecosystems (e.g. individual tree protection, animal culling) or not. A study on the condition of forest regeneration, including the assessment of the damage caused by deer, was performed in the Gorczański National Park (GNP; southern Poland) in 1993 for the first time. The inventory was repeated in 1996 and 2011 on the same 415 concentric permanent sample plots located in the centers of 400×400 m grid. Trees with diameter <16 cm or height 1.3 m were counted. The impact of deer was assessed using: (i) the share of browsed terminal shoots in h=0.3−1.3 m class trees and the tolerable (based on a reference) share of browsed trees of such height with the most damaged tree species taken into account and (ii) the proportion between the density of recently (the previous year) debarked, frayed or broken trees and the tolerable (based on a reference) density of such trees. The main interpretation unit was composed of all stands in the GNP, while stands in particular protection districts formed lower level. Over the time, the density of trees in the regeneration layer increased (fig. 1). The density of recently debarked (frayed or broken) trees decreased considerably (fig. 2), even if a large number of trees (especially silver fir) with old wounds existed (fig. 4). The density of the browsed trees remained more or less unchanged. This type of damage most frequently affected silver fir, sycamore maple and rowan (fig. 3). Differences between the level of forest regeneration damage in different protection districts of the GNP remained similar (fig. 5). The deer impact assessed on the basis of the density of debarked trees significantly decreased to be classified as tolerable in 2011. However, the impact assessed with the share of trees with the browsed terminal shoot did not reach the tolerable level in one protection district. Results show that measures undertaken to protect forest regeneration produce a partially positive effect. The browsing level was still too high. Differences in the deer impact on the forest regeneration between protection districts can be considered as permanent ones.
    Źródło:
    Sylwan; 2015, 159, 06; 505-515
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wzrost i przeżywalność jodły pospolitej (Abies alba Mill.) w zależności od gatunku osłaniającego na terenie Karkonoskiego Parku Narodowego
    Influence of stand canopy on growth and survival of silver fir (Abies alba Mill.) in the Karkonoski National Park
    Autorzy:
    Dobrowolska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/991860.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    odnowienia podokapowe
    drzewostany przebudowywane
    sklad gatunkowy
    Karkonoski Park Narodowy
    drzewa lesne
    jodla pospolita
    Abies alba
    wzrost roslin
    przezywalnosc
    conversion
    artificial regeneration
    browsing
    height increment
    survival
    Opis:
    Article presents the assessment of growth and survival of silver fir seedlings planted under stand canopies constituted by common beech, European larch, Norway spruce, Scots pine and silver birch. Measurements were carried out in Karkonoski National Park (SW Poland) in 2001 and 2011. The tallest trees were growing under the canopy of larch both in 2001 and 2011.
    Źródło:
    Sylwan; 2013, 157, 03; 197-203
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Skład gatunkowy, wzniesienie nad poziomem morza i kategoria ochrony jako czynniki wpływające na intensywność zgryzania odnowień w Tatrzańskim Parku Narodowym
    Species composition, elevation, and former management type affect browsing pressure on forest regeneration in the Tatra National Park
    Autorzy:
    Bodziarczyk, J.
    Zwijacz-Kozica, T.
    Gazda, A.
    Szewczyk, J.
    Fraczek, M.
    Zieba, A.
    Szwagrzyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/45542.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    lowiectwo
    lasy gorskie
    odnowienia lasu
    naloty
    podrost
    gatunki roslin
    Sorbus aucuparia
    Salix caprea
    Abies alba
    Acer pseudoplatanus
    wysokosc nad poziomem morza
    ssaki kopytne
    szkody lowieckie
    zgryzanie
    obszary chronione
    Tatrzanski Park Narodowy
    stale powierzchnie obserwacyjne
    Opis:
    Effects of ungulate pressure on the development of young generation of trees is one of the most important issues in ecology and forestry. Ungulate pressure influence on the development of natural regeneration has been also reported from several national parks. Our study on the effects of ungulate browsing on the young generation of trees was conducted on more than 500 sample plots controlled during one growing season. The overall browsing pressure ranged from 7.6% in seedlings to 20.3% in low saplings. The pressure of ungulates on the regeneration of Picea abies, the dominant species in the Tatra National Park, was by and large below 1%. Broadleaved species were browsed more frequently. The relationship between the plot altitudes and browsing intensity was statistically significant for seedlings and low saplings; at the higher altitudes, the browsing pressure was greater. There was also observed a statistically significant relationship between the type of former management and the browsing degree in seedlings; in the areas subjected to “landscape protection”, the intensity of browsing was higher when compared to strictly protected areas. Pressure exerted by ungulates on tree regeneration was very unevenly distributed, i.e. some plots were heavily browsed and many others - not browsed at all. The most affected tree species were Salix caprea and Sorbus aucuparia, although the percentage of browsed individuals rarely exceeded 50%. Other species favored by ungulates was Acer pseudoplatanus; despite the high browsing pressure, this species was present among seedlings and tall saplings, suggesting that it would be able to recruit to the tree layer. Abies alba was browsed less frequently than the deciduous trees; however, among the tall saplings it was the third most browsed species.
    Źródło:
    Leśne Prace Badawcze; 2017, 78, 3
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Odnowienie naturalne drzew w Puszczy Białowieskiej
    Natural regeneration of trees in the Bialowieza Forest
    Autorzy:
    Brzeziecki, B.
    Andrzejczyk, T.
    Żybura, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/985949.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Bialowieska
    odnowienia naturalne
    drzewa lesne
    topola osika
    Populus tremula
    brzoza brodawkowata
    Betula pendula
    brzoza omszona
    Betula pubescens
    olsza czarna
    Alnus glutinosa
    sosna zwyczajna
    Pinus sylvestris
    dab szypulkowy
    Quercus robur
    jesion wyniosly
    Fraxinus excelsior
    klon pospolity
    Acer platanoides
    wiaz gorski
    Ulmus glabra
    swierk pospolity
    Picea abies
    lipa drobnolistna
    Tilia cordata
    grab pospolity
    proces dorastania
    ekosystemy lesne
    dynamika lasu
    active approach
    deer browsing
    long−term study
    multifunctional forest management
    natural recruitment
    nature conservation
    silvicultural treatment
    strict protection
    tree competition
    tree diversity
    Opis:
    Since several years already, a massive infestation of bark beetle has taken place in the Białowieża Forest, decimating a local Norway spruce population. In consequence, many open areas appeared, practically deprived of trees and other forest vegetation. The existence of such areas has a very negative impact on multiple values of the Białowieża Forest: natural, social, economical and landscape−aesthetic values. The local forest administration prepared a strategy aimed at active restoration of diverse woodland communities typical for the Białowieża Forest in all places, where bark beetle infestation wiped up the spruce stands. Those plans were criticized by representatives of the environmental organizations who blamed the foresters for transforming the Białowieża Forest into ‘plantation’ and claiming that such measures are inconsistent with the existing forest management and protection plan. The postulate of environmentalists is that the recovery of woodland communities should proceed completely naturally. Taking into account the above mentioned controversies, in this paper we examine the issue of natural regeneration in the Białowieża Forest in detail. In particular, we try to determine to which extent this method of forest reproduction enables re−establishment of compositionally diverse woodland communities, distinguished by a high level of biological diversity and able to provide a wide range of commodities and benefits important for today’s society. Based on an extensive literature review we show that a combination of different (abiotic and biotic) factors, influencing establishment and subsequent growth of seedlings and saplings in the Białowieża Forest has long been strongly unfavorable for many tree species. In this regard, one should particularly emphasize the negative role of large herbivores, especially red deer, which is present in the Białowieża Forest since the end of 19th century, when it became a private hunting ground for Russian tzars. The devastating effect of deer browsing on natural regeneration is a well−documented phenomenon and widely recognized problem in the forestry practice. The fencing of young forest generation against game pressure is an indispensable measure, needed to secure the continuous existence of several tree species (first of all those palatable and vulnerable to browsing). Very strong arguments for an active approach to the described problem delivers also a long−term study on natural forest dynamics conducted since 1936. It shows that under conditions of strict protection the regeneration capacity of the Białowieża tree species is very variable. These differences lead to the compositional simplification and impoverishment of many tree stands, with numerous negative consequences for local biodiversity. We underline that an active management strategy is a basic prerequisite for maintaining a diverse character of the Białowieża stands and their ability to provide all important ecosystem services on a sustainable basis. Such a strategy should include, beside of the phase of establishment, also the subsequent developmental stages of new forest generations. The general goal of such a strategy should be to secure a possibly high diversity of tree composition and to enable the development of tree species representing a full range of life−history strategies and playing different successional roles: from typical pioneer species, through intermediate, to climax species.
    Źródło:
    Sylwan; 2018, 162, 11; 883-896
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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