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    Wyświetlanie 1-5 z 5
    Tytuł:
    Zastosowanie Siedliskowego Indeksu Glebowego dla terenów górskich (SIGg) w ocenie jakości siedlisk zamierających drzewostanów świerkowych
    Application of the Soil Trophic Index for the mountain areas (SIGg) in the assessment of the quality of the dying spruce stands sites
    Autorzy:
    Januszek, K.
    Małek, S.
    Blońska, E.
    Barszcz, J.
    Chilarski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/989830.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    tereny gorskie
    drzewostany swierkowe
    zamieranie lasow
    siedliska lesne
    jakosc
    Siedliskowy Indeks Glebowy
    site quality
    mountain areas
    norway spruce
    Opis:
    In recent years, we face a massive dieback of Norway spruce stands in Poland. The cause of this process may lay in the way of their monocultural silviculture. The correct assessment of the habitat conditions and soil properties in particular is the basis of the proper management of these forest areas. The aim of this study was to verify application of the trophic soil index for mountain areas (SIGg) in the assessment of site conditions for spruce stands with different health condition. Three types of spruce stands were distinguished: degenerated, weakened and stable. In total, 32 study plots were established in following forest districts in southern Poland: Ustroń, Wisła, Bielsko, Węgierska Górka, Jeleśnia, Ujsoły and Lądek Zdrój. The SIGg was calculated on the basis of <0.02 mm fraction content, the sum of exchangeable base cations, soil acidity and the total content of N and organic C in the humus−mineral horizon. These attributes are useful to determine the potential productivity of the soils did not differentiate visibly the analyzed stand variants. The soil in degenerated and weakened spruce stands showed higher degree of acidity and less the content of base cations compared to soils of stable spruce stands. Mountain trophic soil index can be applied in the assessment of the forest sites potential. Although it does not enable to monitor the disturbances in the nutrients circulation, the detailed analysis of its components allows for precise assessment of the forest sites status.
    Źródło:
    Sylwan; 2015, 159, 05; 419-426
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stawonogi uszkadzające drewno w badaniach poligonowych
    Variability of chemical features of upper horizons in forest soils on the example of Dupnianski stream catchment in the Beskid Slaski Mts.
    Autorzy:
    Zwydak, M.
    Małek, S.
    Jodłowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013205.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wlasciwosci chemiczne
    Beskid Slaski
    gleby lesne
    zlewnia Potoku Dupnianskiego
    poziom mineralny
    poziom organiczny
    drzewostany swierkowe
    lesnictwo
    poziom prochniczny gleby
    zmiennosc
    mountain soils
    norawy spruce stand
    chemical features
    variavility
    Opis:
    The objective of the study was to investigate variability of chemical features of upper horizons in forest soils as well as confirmation of collecting the mixed sample that is supposed to describe the soil conditions more effectively. The lowest variability (ca 10%) was observed for pH in H2O and KCl as well as C/N ratio. The highest coefficient of variance exceeded 100% (Ca content). For almost all analysed chemical parameters, the results obtained for mixed sample (average of 5 samples systematically distributed within the study area) are in ±1 standard deviation range from the average of 25 individual samples.
    Źródło:
    Sylwan; 2008, 152, 08; 66-72
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena doświadczalnych upraw świerkowych zakładanych sposobem rot na powierzchniach po rozpadzie drzewostanów w Beskidzie Śląskim
    Assessment of experimental spruce cultures set up by the biogroup method on plots after stand disintegration in the Beskid Slaski Mountains
    Autorzy:
    Małek, S.
    Barszcz, J.
    Buława, K.
    Kożuch, E.
    Amarowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/973220.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Picea abies
    odnowienia lasu
    odnowienia w formie grupowej
    biogrupy
    leśnictwo
    Beskid Śląski
    regiel górny
    drzewa leśne
    świerk pospolity
    uprawy leśne
    żywotność
    przeżywalność
    wzrost roślin
    rozwój roślin
    cultures
    biogroup
    Norway spruce
    Beskid Śląski Mountains
    Opis:
    The aim of the present research conducted in the Beskid Śląski was to search for an appropriate, alternative to classic way to regenerate the forest at high mountain altitudes. An attempt was made, therefore, at regeneration of these areas using the group method that imitates the natural formation of spruce biogroups in the forest. It was concluded that the choice of place for planting should entail the time of snow cover disappearance as well as the differentiation of microsites, kind of protection and plant cover. The assessment performed favours the biogroup method of setting up spruce cultures in higher mountain altitudes, especially in areas close to the mountain top.
    Źródło:
    Sylwan; 2010, 154, 06; 388-396
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena jakości wód źródlanych w rejonie Skrzycznego i Baraniej Góry
    Quality assessment of spring water from the area of Skrzyczne and Barania Gora mountains
    Autorzy:
    Małek, S.
    Astel, A.
    Krakowian, K.
    Opałacz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008955.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gory
    Beskid Slaski
    Skrzyczne
    Barania Gora
    zrodla
    woda zrodlana
    jakosc
    wlasciwosci chemiczne
    odczyn wody
    przewodnosc elektrolityczna
    stezenie jonow
    warunki srodowiska
    podloze geologiczne
    gleby
    siedliska
    szata roslinna
    wysokosc nad poziomem morza
    rzezba terenu
    springs
    water quality
    beskid śląski
    snowmelt
    spruce stands
    Opis:
    The study was carried out in the year 2009 on northern, southern and western slopes of Skrzyczne and Głębczański and Roztoczański stream catchments on Barania Góra in the Beskid Śląski Mountains. Water samples were collected from springs during snowmelt (May 1st−3rd). Data set consisting of conductivity, water pH, concentrations of major anions (Cl–, NO3–, SO42–), major cations (Na+, K+, Ca2+, Mg2+) and metals (Al, Fe, Mn, Zn) was produced. Waters were then classified according to Polish standards. Water class depended strongly on chemical composition of melting snow. It was found that water from most sampling points in springs was not potable – 39 out of collected 48 samples on Skrzyczne and 51 out of 57 samples collected on Barania Góra were beyond the first class according to Polish standard from the year 2008. The main reason for that was too low pH and high NO3– concentration. Chemical composition of spring waters depended also on plant cover and local properties of drainage areas. Statistically significant difference was observed between spruce and beech stands. Springs located in beech stands characterised higher concentrations of Ca2+, Mg2+, K+, Na+, SO42–, Cl– and higher PEW and additionally on Barania Góra higher pH as well. This dependence should be considered while planning stand composition in springs neighbourhood.
    Źródło:
    Sylwan; 2010, 154, 07; 499-505
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problem masowego zamierania drzewostanów świerkowych w Leśnym Kompleksie Promocyjnym "Puszcza Białowieska"
    Problem of a massive dying-off of Norway spruce stands in the 'Bialowieza Forest' Forest Promotional Complex
    Autorzy:
    Brzeziecki, B.
    Hilszczański, J.
    Kowalski, T.
    Łakomy, P.
    Małek, S.
    Miścicki, S.
    Modrzyński, J.
    Sowa, J.
    Starzyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/985913.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lesne kompleksy promocyjne
    Lesny Kompleks Promocyjny Puszcza Bialowieska
    drzewostany swierkowe
    stan sanitarny
    zagrozenia drzewostanow
    szkodniki roslin
    kornik drukarz
    Ips typographus
    dynamika populacji
    gradacja
    drewno martwe
    grzyby patogeniczne
    zagrozenie pozarowe
    zamieranie lasow
    norway spruce bark beetle infestation
    białowieża forest
    ecosystem stability
    multifunctional forestry
    natura 2000 plc200004
    natural values
    world heritage site
    Opis:
    The Białowieża Forest (BF) is in many respects an exceptional object, of a great importance for nature protection and forest management, at the international scale. The BF plays also a key role from the point of view of regional development and welfare of local community. In the last period, a big threat for multiple values of the BF has arisen, as a result of enormous bark beetle infestation, which started in 2012 and has killed 1.4 million m3 of spruce trees. In the paper, first, a brief overview of the general history of the BF and an account of long−term human impacts on its functioning and structure is provided. Next, the history of bark beetle infestations in the BF is analysed. It is shown that, in the period 1992−2007, the average volume of spruces killed by bark beetle amounted on average to 20,000 m3 of wood annually. During that period practically all dead trees were removed from the forest by means of salvation cuttings. Starting from 2008, more and more trees infested by European spruce bark beetle were left in the forest, in a result of a pressure exerted by environmental groups. In 2012, Minister of Environment decided to reduce the allowable cut, determined in forest management plans elaborated for the managed part of the BF, from 107,000 to 48,500 m3/year. This decision, along with several other regulations and restrictions, made in practice impossible to stop the development of a current bark beetle infestation, which started in 2011 and intensified during the next 6 years (solely in 2016 bark beetles killed 480,000 m3 of spruce trees). In the paper, the most important implications and consequences of the current situation are briefly summarized and discussed. A special attention is given to the problems concerning: 1) protection of Natura 2000 species and sites (endangered by bark beetle outbreak), 2) a negative influence of large amounts of spruce deadwood on forest soils, 3) threats caused by pathogenic fungi, 4) question of public safety, 5) fire hazard, and 6) economical dimension. The legal and socio−economical foundations of the functioning of Hajnówka, Browsk and Białowieża forest districts comprising the managed part of the BF, as well as their most important environmental and social consequences are discussed too. Among others, it is indicated that, under current conditions of the BF, human intervention plays a key role in maintaining stable and compositionally diverse woodland communities. Finally, several suggestions and recommendations are provided, aimed at, in the short term, breaking off the current bark beetle outbreak, and, in the long term, at maintaining a multifunctional character of the BF and its ability to provide all important ecosystem services on a sustainable basis.
    Źródło:
    Sylwan; 2018, 162, 05; 373-386
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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