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Wyszukujesz frazę "sławski, M." wg kryterium: Wszystkie pola

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    Wyświetlanie 1-11 z 11
    Tytuł:
    Zmiany składu gatunkowego i stopnia pokrycia przez rośliny na powierzchniach zaburzonych przez huragan na terenie Puszczy Piskiej w 2002 roku
    Changes in species composition and cover of understory plants in stands disturbed by a hurricane in Piska Forest in 2002
    Autorzy:
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/990978.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Piska
    tereny pohuraganowe
    ekosystemy lesne
    regeneracja
    drzewostany pohuraganowe
    zmiany skladu gatunkowego
    stopien pokrycia terenu
    disturbance
    windthrow
    regeneration
    szast protected forest
    Opis:
    Comparison of understory of stands disturbed by hurricane and managed ones allowed to distinguish two phases that include degenerative and regenerative changes. In the first phase, which lasted about 6 years, following processes were observed: chaotic changes in species composition, invasion of exogenous species, increase in cover of Deschampsia flexuosa and Vaccinium vitis−idaea, decrease in moss cover and Vaccinium myrtillus as well. In the second phase changes had opposite direction. Structure of ground flora typical to Scots pine forest was slowly developing. Increasing shade of forest floor, caused by growing shrub layer and regeneration of tree species, was a key factor of the regeneration process.
    Źródło:
    Sylwan; 2014, 158, 09; 661-668
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metoda określania wielkości konsumpcji igieł przez foliofagi w koronach drzewostanów sosnowych
    Autorzy:
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1019748.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    foliofagi
    drzewostany sosnowe
    owady
    szkodniki roslin
    konsumpcja igiel
    lesnictwo
    ekstrementy
    foliovores
    pinus sylvestris
    herbivory
    needle consumption
    Opis:
    The proposed method for determining needle consumption by foliovores is based on the counts of excrement falling on the forest floor. The excrement mass collected in litter traps was multiplied by 1.19 – the coefficient taking into account the mass loss as a result of leaching by atmospheric precipitation and then multiplied by 1.35 – the coefficient established under laboratory conditions as a result of foliophage rearing to determine the mass of consumed needles per the unit of produced excrements. The said method enabled to estimate needle consumption in a 58 year−old pine stand at 87.7 kg/ha/year. In addition, 16.4 kg/ha/year of damaged needles fell onto the ground as a result of foliphage feeding.
    Źródło:
    Sylwan; 2005, 149, 04; 55-62
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza zależności struktury lasu od wieku na przykładzie drzewostanów sosnowych
    Analysis of forest structure in relation to age – Scots pine case study
    Autorzy:
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/973837.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    starodrzew
    struktura drzewostanu
    wiek drzewostanu
    zmiany struktury drzewostanu
    leśnictwo
    forest structure
    old−growth
    pine forest
    Opis:
    Structure of pine forests develops with age and becomes more complex in older stands. Key attributes of old−growth forest structure include presence of huge trees, coarse woody debris, hollow trees, trees with fungi, clearings, two or more layered structure. In total, 26 attributes show positive correlation with age. This set can be used as base for old−growthness index. Cluster analysis divided forest stands into four groups with different level of maturity. Stands older than 160 years occurred fully developed. It seams that in sustainable forestry attributes of old−growth forests can be maintained as key elements for biodiversity.
    Źródło:
    Sylwan; 2011, 155, 01; 10-20
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ilościowa charakterystyka zróżnicowania struktury borów sosnowych różnego wieku
    Quantitative characteristic of structure in Scots pine stands of various age
    Autorzy:
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1007519.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    bor sosnowy
    struktura drzewostanu
    roznorodnosc gatunkowa
    wskaznik roznorodnosci Simpsona
    wskaznik zmieszania
    piersnice drzew
    wskaznik przestrzennego zroznicowania piersnic
    wskaznik dominacji piersnic
    rozstep piersnic
    rozmieszczenie drzew
    wskaznik Clarka-Evansa
    miara katowa
    stand structure
    pinus sylvestris
    structural indices
    neighborhood−based indices
    Opis:
    Structure of 10 Scots pine stands in Nowe Ramuki Forest District was analyzed. The stands were of age from 25 to 220 years. Structure of pine stands younger than 115 years is characterized by low species diversity, low DHB differentiation and regular dispersion of trees. Stands older than 115−135 years show higher species richness, big diameter diversity and random dispersion of trees. Moreover, indices calculated for each stand show higher dispersion in older stands than in younger ones. Structure of old−growth pine stands is similar to natural stands of boreal zone.
    Źródło:
    Sylwan; 2012, 156, 05; 349-359
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ sposobu przygotowania gleby i składu gatunkowego uprawy na tempo regeneracji zgrupowań Collembola na gruntach porolnych
    Effect of site preparation and species composition of afforested fields on regeneration of Collembola communities
    Autorzy:
    Sławska, M.
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1019058.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gleby
    sklad gatunkowy
    grunty porolne
    przygotowanie gleby
    lesnictwo
    bioindykatory
    Collembola
    regeneracja zgrupowan
    skoczogonki
    aktywnosc biologiczna
    uprawy lesne
    forest regeneration
    abandoned agricultural land
    collembola communities
    Opis:
    Young forest plantation established on abandoned agricultural land were compared to spontaneously developing young forest in order to evaluate their impact on biological activity of the soil. The study area was planted by pine trees in number 7 thous. per hectare. Aditionally, phytoameliorative tree species were planted singly on these plots in the following number: 1,5 thous., 3 thous. and 5 thous. per hectare. Some plots were pine monoculture.The following variant of site preparation prior to afforestation were used: agricultural ploughing (deep to 25 cm), agricultural ploughing with countersinking, deep ploughing (to 40−50 cm) and countersinking with ridges. All applied site preparation technics have detrimental effect on soil mesofauna. Collembola communities of five−year pine plantations are impoverished form of open area fauna. Phytoameliorative tree species do not accelerate soil fauna developement during the first years of secondary forest succession. Developement of soil fauna on abandoned agricultural land has been noticeably promoted by spontaneous succession of forest ecosystem.
    Źródło:
    Sylwan; 2006, 150, 03; 57-65
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sukcesja biegaczowatych w procesie spontanicznej restytucji lasu na gruntach porolnych
    Succession of carabids in the natural restitution of forest on former agricultural land
    Autorzy:
    Skłodkowski, J.
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026686.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    fauna
    drzewostany
    odnowienia lasu
    grunty porolne
    lesnictwo
    biegaczowate
    odnowienia naturalne
    sukcesja
    Carabidae
    carabidae
    forest restitution
    spontaneous succession
    afforestation
    farmland
    mib index
    Opis:
    Investigations were carried out in 2000−2001 on the succession of carabid assemblages accompanying the spontaneous succession of pine stands on former agricultural land. Observations concerning changes in the number of carabid individuals and species, proportion of individuals in the groups: developmental, ecological, trophic, geographical, moisture preference, wing differences, as well as the mean individual biomass (MIB) indicated that the development of carabid assemblages during the spontaneous succession of stands can be compared to the regeneration process of the carabid fauna that accompany afforestation and that the direction of this development is similar to the development of carabid assemblages that accompany afforestation of farmlands.
    Źródło:
    Sylwan; 2003, 147, 05; 47-57
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ suszy na ściółkowo-glebowe zgrupowania skoczogonków (Collembola, Hexapoda) w lesie mieszanym
    Influence of drought on epigeic soil collembolan communities (Hexapoda) of moderately humid mixed deciduous forest
    Autorzy:
    Sławska, M.
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/987116.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy mieszane
    sciolka lesna
    gleby lesne
    owady
    skoczogonki
    Collembola
    zgrupowania zwierzat
    bogactwo gatunkowe
    liczebnosc
    czynniki klimatyczne
    susza
    wysokie temperatury
    niedobor opadow
    soil fauna
    mature forest
    young plantation
    precipitation paucity
    indicator species
    Opis:
    The resilience of forest ecosystems to climate changes such as elevated temperature and frequent drought episodes, strongly depends on how the soil subsystems and its inhabitants responds to these perturbation. The epigeic soil Collembola communities of mature mixed deciduous forest and adjacent young plantation on moderately humid soil were compared in two consecutive years, out of which the second one was marked by significant deficiency of precipitation in growing− −season. The study plots were established on the area of experimental forests of Warsaw University of Life Science−SGGW in Rogów (central Poland). The objectives of the study was to assess the sensitivity of forest Collembola communities to drought stress and to check if the reaction depends on stand age. We also aimed to test if an indicator species of climate changes can be appointed. The results showed that three months drought episode had negative impact on forest Collembola communities of mature stands, while communities of young plantation were not affected. The reduction of total abundance of Collembola and clear changes in communities structure in mature stand was detected in the year of lower precipitation. The Collembola communities of young plantation were also significantly transformed, but in result of clear cutting and soil preparation. Therefore, the successional changes were the most evident process in these communities and there were no signs of drought influence. Among the most numerous species in Collembola communities of mature forest Isotomiella minor was appointed as an indicator of drought, because its abundance was drastically reduced in the year of lower precipitation. The small number of specimen of this species in young plantation may also prove its sensitivity to deficiency of humidity in soil. The significantly negative response to drought episode was documented also for Psuedosinella horaki, Micraphorura absoloni and Megalothorax minimus. Our study provided strong evidence that the drought, which lasted only three months, had a detrimental effect on forest Collembola commu− nities.
    Źródło:
    Sylwan; 2017, 161, 01; 71-80
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reakcja zgrupowań skoczogonków (Hexapoda: Collembola) na próby doskonalenia gospodarki zrębowej w Leśnym Kompleksie Promocyjnym „Lasy Mazurskie”
    Response of springtail communities [Hexapoda: Collembola] to attempts of clearcut silviculture improvement in Forest Promotional Complex 'Lasy Mazurskie'
    Autorzy:
    Sławska, M.
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1011762.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    bogactwo gatunkowe
    zgrupowania zwierzat
    Lasy Mazurskie
    lesne kompleksy promocyjne
    lesnictwo
    bioindykatory
    Collembola
    bioindykacja
    zrab zupelny
    skoczogonki
    gospodarka zrebowa
    collembola
    pine forest
    clearcut improvement
    site preparation
    logging residuals
    Opis:
    Based on experiment established in pine forest of Spychowo Forest District, it was proved that clearcut caused negative changes in forest springtail communities. The logging of a whole stand reduced the number of species and their abundance. The decrease in springtail abundance depended on the method of site preparation prior to afforestation. The highest reduction was recorded in logged areas where stripes had been plowed using forest reversible plough. Regressive changes in communities were also observed on harvested sites prepared by an active plough and rotary cultivator. The attempts of clearcut improvement by addition of wood chips or leaving debris piles on logged areas were evaluated on the base of the response of springtail communities. In both cases, the number of species and abundance were higher comparing to clearcut areas without logging residuals. Also residual patches of old growth left on harvested sites had positive effect on Collembola communities. Species richness and abundance observed in those paches were higher than in control mature stands.
    Źródło:
    Sylwan; 2009, 153, 08; 534-547
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Czy zakładanie upraw dębowych metodą biologicznej racjonalizacji sprzyja zachowaniu leśnych zgrupowań skoczogonków (Collembola, Hexapoda)?
    Does alternative methods of oak plantations establishment create favourable conditions for forest collembolan assemblages (Collembola, Hexapoda)?
    Autorzy:
    Sławska, M.
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/986682.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    uprawy lesne
    uprawy debowe
    zakladanie upraw lesnych
    prowadzenie upraw lesnych
    metody biologicznej racjonalizacji
    fauna glebowa
    zgrupowania zwierzat
    skoczogonki
    Collembola
    oak cultivation
    corridor and tree group methods
    soil fauna
    species richness
    abundance
    Opis:
    Alternative methods of oak cultivation aim at reducing the cost of establishment of young plantations and decrease in the expenditure on their tending. In these methods, the corridors consisting of oak seedlings planted in the rows or isolated groups of twenty six seedlings are enclosed by stripes or patches without intervention left for natural succession. The restriction in site preparation on these areas and spontaneous development of young generation of trees are assumed to create favourable conditions for many forest organisms and, in results, significantly improve biological diversity of the managed forests. The aim of the study was to recognize the response of forest collembolan assemblages on alternative methods of establishment of oak plantations. The study was performed in the Forest Experimental Station in Rogów (Central Poland). In a mature stand on moderately humid mixed deciduous forest site, on clear−cut and on oak young plantations made by corridor and tree groups methods, fifteen study plots were established. In case of young plantations, these plots encompassed both artificially planted corridors or tree groups and adjacent fragments of plantation left for natural succession. Soil samples were taken in June and September 2014 and, using a simplified Tullgren apparatus, 18 thousands of collembolan specimens belonging to 84 taxa were identified. Our study proved that clear−cut and site preparation by rotary tiller on moderately humid mixed deciduous forest had a negative impact on Collembola assemblages, because caused a reduction in species number and abundance. However, the establishment of oak plantations by alternative methods, consisting in abandonment an artificial planting on some patches of renewed plots, significantly mitigate negative effects of clear−cut and reforestation on collembolan assemblages. The species number and abundance of springtails on patches left for spontaneous succession were distinctly higher than in artificially planted corridors or groups of trees in case of all studied plantations. Furthermore, it seems that corridor method in oak plantations establishment is advantageous for forest springtails, because the number of specimens per square meter on corridor plantation was higher than in tree group method. The beneficial effect on soil fauna of alternative methods of oak cultivation described in this paper weighs in favour of their wider application in silviculture.
    Źródło:
    Sylwan; 2018, 162, 07; 580-589
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rozmieszczenie zimujących stadiów przedimaginalnych osnui gwiaździstej Acantholyda posticalis Mats. w drzewostanach sosnowych będących ogniskami gradacyjnymi szkodnika
    Distribution of wintering pre-imaginal stages of the great web-spinning pine sawfly Acantholyda posticalis Mats. in Scots pine stands being the outbreak centres
    Autorzy:
    Sławski, M.
    Mokrzycki, T.
    Perliński, S.
    Rutkiewicz, A.
    Sławska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/980205.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    szkodniki roslin
    osnuja gwiazdzista
    Acantholyda posticalis
    larwy zimujace
    eonimfy
    pronimfy
    rozmieszczenie przestrzenne
    autumn survey
    scots pine pests
    eonymphae
    pronymphae
    abundance
    distribution variability
    Opis:
    Acantholyda posticalis Mats. for over twenty years increases the extent of occurrence and causes defoliation of Scots pine stands. The population size is estimated annually based on the autumn surveys of phytophagous insects, but accuracy of these prognoses is far from satisfactory. The aim of the study was to describe the spatial distribution of pre−imaginal stages of A. posticalis wintering in the litter and soil to improve the methods of survey currently applied in Polish forestry. The research was carried out in four forest district located in different regions of Poland. In each forest stand three following zones were outlined: the belt of trees on the edge of the stand adjoining to young plantation or thicket, the belt 15−20 m from the stand edge and the belt in the forest interior at least 30−40 m from the edge of a stand. 152 trees were examined and 1540 plots of size 1×0.5 m were established under their canopy. The pre−imaginal stages were searched within each of these plots in the litter and soil to the depth of 20 cm. Later on they were divided into eonymphae and pronymphae, and counted. The significant differences in number of pre−imaginal stages of A. posticalis between studied forest stands in different forest districts were found. The spatial distribution of larvae wintering in the litter and soil was highly variable in scale of both stand and single tree. The abundance of larvae depended on the distance from the forest edge, but the values of this parameter calculated for trees in the same zone also varied substantially. The lowest mean abundance of pre−imaginal stages of A. posticalis denoted under pines growing at the edges of trees stand. Within the canopy projection on forest floor, the distribution of larvae was significantly dependent on the distance from the tree trunk. The highest abundance was observed within one meter from the trunk. The survey method currently used for primary pine pest assessment in Polish forests bases on ten plots and five of them are located 1.5 m from the tree trunk. In the light of presented results, the assessment of A. posticalis number could be inaccurate, because half of these plots in which scrutiny of litter and soil take place, omit the areas of higher concentration of wintering stages of the pest.
    Źródło:
    Sylwan; 2019, 163, 07; 556-563
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Fully Computerized Scanning Tunnelling Microscope
    Autorzy:
    Chwiałkowski, M.
    Klusek, Z.
    Kobierski, P.
    Olejniczak, W.
    Sławski, M.
    Witek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1929317.pdf
    Data publikacji:
    1993-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    07.80.+x
    Opis:
    A new, fully computerized and inexpensive, scanning tunnelling microscope was designed and built. Its key design feature is the application of the high sensitivity bimorph, for the coarse positioning of the bimorph is > 0.03 mm and can be divided up to the 12 bit number of steps. The bimorph positioning implies that this microscope is fully computer controlled, and using of bimorph instead of inch-worm implies low cost of the unit. The microscope can create images of the surface in the constant current mode and in the imaging current mode. The presented microscope works with the z-axis analog or digital feedback loop optionally. All parameters of the analog and digital feedback loop are computer controlled. Due to the digital z-axis feedback loop benefits, electron tunneling spectroscopy mode is naturally accessible. The performance of the microscope was tested in air by imaging of surface of HOPG (high oriented pyrolytic graphite).
    Źródło:
    Acta Physica Polonica A; 1993, 83, 5; 621-628
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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