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    Wyświetlanie 1-11 z 11
    Tytuł:
    Administracja lasami państwowymi w latach 1868−1914 na terenie dzisiejszej RDLP w Gdańsku
    Administration of the state-owned forests in the territory of the Gdansk Regional Directorate of the State Forests National Forest Holding in years 1868-1914
    Autorzy:
    Jażdżewski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009222.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    RDLP Gdansk
    historia
    Pomorze Gdanskie
    lasy panstwowe
    administracja lesna
    Prusy Zachodnie
    history of forestry
    pomorze gdańskie
    western prussia
    Opis:
    This article is the second in a series about the state forests administration in the territory of the Gdańsk Regional Directorate of the State Forests National Forest Holding in the time of Poland’s partition. In the period under study (1868−1914), increase in the number of Forest Inspectorates and Forest Districts was observed. This growth was mainly the result of acquisition by the German government of new lands and forests and their transfer to forest administration.
    Źródło:
    Sylwan; 2010, 154, 02; 139-144
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Administracja lasami państwowymi na obszarze RDLP w Gdańsku w latach 1815-1867
    Administration of the state-owned forests in the territory of the Regional Directorate of the State Forests in Gdansk in years 1815-1867
    Autorzy:
    Jażdżewski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013002.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Pomorze Gdanskie
    historia
    administracja lesna
    RDLP Gdansk
    Prusy Zachodnie
    lesnictwo
    lasy panstwowe
    history of forestry
    pomorze gdańskie
    prusy zachodnie
    Opis:
    Administration of the state−owned forests in the territory of the Gdańsk Regional Directorate of the State Forests in years 1815−1867 was an important fragment of functioning of the Prussian State. It's efficiency had an impact on state revenues and, consequently, on its economic situation and, what was of primary importance at that time, on its military condition. In the period under review, a four−tier forest administration system was in place, headed by a director−general. The second tier consisted of forest inspectors responsible for forest inspections, usually acting in the territory of dozen or so forest districts. The last two tiers consisted of forest district managers and forest rangers. Wardens and guards often assisted forest rangers.
    Źródło:
    Sylwan; 2008, 152, 10; 56-61
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany składu chemicznego wód w strumieniach śródleśnej niszy źródliskowej w dolinie Kamiennej (Pomorze Środkowe)
    Changes of water chemistry in mid-forest headwater streams in the valley of the Kamienna (Middle Pomerania)
    Autorzy:
    Parzych, A.
    Jonczak, J.
    Sobisz, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/989491.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Pomorze Srodkowe
    dolina Kamiennej
    nisze zrodliskowe
    strumienie lesne
    wody plynace
    wlasciwosci fizykochemiczne
    sklad chemiczny
    zmiany skladu chemicznego
    headwater areas
    springs
    water chemistry
    riparian forest
    Opis:
    The paper concerns changes of chemical composition of water in headwater streams in the valley of the Kamienna, left bank tributary of the Słupia River (54°19′N; 17°10′E). Water samples were collected in 2012 from three streams, in their upper, middle and lower course every month. Analysis included water temperature, pH, conductivity, and the content of dissolved oxygen, HCO3– , K+, Na+, Ca2+, Mg2+, NH4+, Cl–, NO3–, PO43– and SO42–. Water of the analysed streams was characterized by generally low concentration of solutes (tab. 1) and had bicarbonate−calcium character. The observed low variability of water temperature along the streams resulted from their shortness and rapid flow. Low variability was also observed in case of pH and Mg2+ content. Increasing trends downward the streams were noticed for dissolved oxygen, while decreasing changes were observed for HCO3–, NO3– and PO43–. The remaining components showed different trends in the individual streams, indicating importance of local−scale factors.
    Źródło:
    Sylwan; 2016, 160, 10; 871-880
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Administracja lasami państwowymi na obszarze dzisiejszej RDLP w Gdańsku w latach 1772−1815
    Administration of the state-owned forests in the territory of the Gdansk Regional Directorate of the State Forests National Forest Holding in years 1772-1815
    Autorzy:
    Jażdżewski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008945.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Prusy Zachodnie
    Pomorze Gdanskie
    RDLP Gdansk
    historia
    lasy panstwowe
    administracja lesna
    lata 1772-1815
    history of forestry
    gdańsk pomerania (pomorze gdańskie)
    western prussia
    Opis:
    The present article is the third in a series on the administration of state−owned forests in the territory of the Regional Directorate of State Forests in Gdańsk during Poland’s partition. In the period under review, vast stretches of forests, which formerly belonged to clergy, private owners or royalty, in the majority came under the rule of the Prussian King. To manage the taken−over property efficiently, the conqueror started to build a centralised forest administration structure abolishing the administrative division in place during the Republic of Poland.
    Źródło:
    Sylwan; 2010, 154, 07; 506-512
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Granica lasu jako strefa ochronna ekosystemu lesnego. Analiza roslinnosci wybranych ekotonow na Pomorzu
    Autorzy:
    Slawski, M
    Powiązania:
    https://bibliotekanauki.pl/articles/821695.pdf
    Data publikacji:
    2001
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zbiorowiska roslinne
    ekosystemy lesne
    sklad gatunkowy
    wiek drzewostanu
    typy siedliskowe lasu
    lesnictwo
    Pomorze
    ekotony
    Źródło:
    Sylwan; 2001, 145, 02; 77-87
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Właściwości materii organicznej gleb śródleśnych nisz źródliskowych w dolinie Kamiennej (Pomorze Środkowe)
    Properties of soil organic matter in soils of mid-forest spring niches in the Kamienna Creek valley (Middle Pomerania)
    Autorzy:
    Jonczak, J.
    Parzych, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/989393.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Pomorze Srodkowe
    dolina Kamiennej
    nisze zrodliskowe
    gleby lesne
    materia organiczna
    stopien rozkladu masy torfowej
    odczyn gleby
    zawartosc wegla organicznego
    zawartosc azotu ogolnego
    sklad frakcyjny
    absorbancja promieniowania
    headwater areas
    histosols
    soil organic matter
    Opis:
    The paper presents the result of the studies on the properties of soil organic matter in Sapric Histosols associated with mid−forest spring niches in the valley of the Kamienna Creek, left bank tributary of the Słupia River (northern Poland). We sampled five soil profiles at the depth of every 10 cm until the mineral bed was reached. We analyzed degree of peat mass decomposition, reaction and the content of organic matter, total organic carbon and total nitrogen. Fractional composition of soil organic matter was analyzed with Schnitzer method. We measured the absorbance at wavelenghts of 280, 465 and 665 nm in 0.01% alkaline solutions of humic acids and the absorbance ratios A2/6, A2/4 and A4/6 were calculated based on these data. The studied soils consisted of strongly and moderately decomposed alder and alder−sedge peat, which contained 309.7−829.0 g/kg of organic matter. The soils were moderately abundant in nitrogen and were characterized by low variability in pH (pHH2O 5.6−6.9). Soil organic matter was dominated by humins, contribution of which ranged from 71.5 to 91.9%. Humic acids constituted 4.9−22.1%, fulvic acids 1.9−6.7% and the most labile organic substances extracted during decalcification of samples (Cdek) – 0.2−1.1% (tab. 2). The observed relatively low degree of humification and quantitative predominance of humic acids over fulvic acids are features typical for riparian organic soils. High values of absorbance ratios of alkaline solutions of humic acids (tab. 3) indicate predominance of aliphatic structures over aromatic in their molecules, which is typical for weakly humified organic substances.
    Źródło:
    Sylwan; 2016, 160, 02; 135-143
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena fragmentacji lasów Pomorza Zachodniego pomiędzy XV a XX wiekiem
    Evaluation of the forest cover fragmentation in Western Pomerania between the 15th and 20th century
    Autorzy:
    Pieńkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989791.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy
    fragmentacja lasu
    spadek lesistosci
    Pomorze Zachodnie
    wiek XV-XX
    forest fragmentation
    land use changes
    landscape metrics
    Opis:
    The paper analyzes the changes of forest fragmentation in the Western Pomerania region (NW Poland). The analysis was carried out basing on maps from 16th and 18th century as well as 1930s, when the forest cover in the studied area was the lowest. The historical area of forests was assessed on the basis on Hartnack utilization maps. The analysis of numerical maps was carried out in the GUIDOS program, which enables to evaluate the fragmentation of the forests through Morphological Spatial Pattern Analysis (MSPA) that describes the geometry of patches and their interconnectivity. The program calculated the forest areas classified for the seven categories according to their functions in the landscape (MSPA classes). In the 15th century the forests coverage was around 52.5%. There was a significant loss of forest area between the 16th and 18th century, and in the 18th century they occupied 24.7% of the researched area. Because of the economic changes in the country that took place after the World War II, the forest area in Pomerania increased to 33.7%. It was found that changes in the forest area in the examined period resulted in a decrease in the area classified as forest interior (CORE) and an increase in the boundary area (EDGE). Taking into account the equidistant of 1 km², the area occupied by the core patches dropped in the analysed period from 59.9% to 35.6%. At the same time the spatial isolation of many patches increased, which was reflected in an increase in the area classified as ‘islands' (ISLET). Their share in relation to the entire forest area increased from 4.4% to 23.6%. This could be particularly seen in the area of Pyrzycko−Stargardzka Plain and Choszczno Lakeland, where in the 1930s the so−called forest islands constituted the entire forest area of these mesoregions. The MSPA analysis enabled to specify forest patches classes, which can be useful for landscape characterization, including the patch and corridor model. The fragmentation of forests can be objectively assessed using GUIDOS and it can make the output results obtained in GIS programs complete.
    Źródło:
    Sylwan; 2015, 159, 07; 610-616
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dendrochronologiczna analiza przyrostów radialnych choiny zachodniej (Tsuga heterophylla Sarg.) z Pomorza Zachodniego (Nadleśnictwo Dobrzany)
    Dendrochronological analysis of radial growth of western hemlock (Tsuga heterophylla Sarg.) from Western Pomerania (Dobrzany Forest District)
    Autorzy:
    Glawenda, M.
    Koprowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1006599.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    dendrochronologia
    choina zachodnia
    Tsuga heterophylla
    przyrosty radialne
    analiza dendroklimatyczna
    Pomorze Zachodnie
    Nadlesnictwo Dobrzany
    dendroclimatology
    tsuga heterophylla
    poland
    Opis:
    Western hemlock (Tsuga heterophylla Sarg.) is an exotic species rarely encountered in Poland. The study site was located in the territory of the Dobrzany Forest District, in the oldest stands of this species in Poland. The research material comprised 20 wood samples from 10 trees aged 78 years. The chronology was built covering the period between 1942 and 2009. Indicator years were determined and dendroclimatological analysis was performed. Thermal conditions in January and February and the amount of precipitation in July and February influenced the tree−rings width. Missing rings were detected in 30% of wood samples in 1982.
    Źródło:
    Sylwan; 2012, 156, 04; 287-293
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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