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    Wyświetlanie 1-5 z 5
    Tytuł:
    Wieloletnia zmienność odpływu z małej zlewni rzecznej w regionie Puszczy Kozienickiej
    Long-term variability of runoff from a small catchment in the region of the Kozienice Forest
    Autorzy:
    Banasik, K.
    Hejduk, L.
    Hejduk, A.
    Kaznowska, E.
    Banasik, J.
    Byczkowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/994346.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Kozienicka
    zlewnie rzek
    zlewnie male
    zlewnia Zagozdzonki
    opady atmosferyczne
    zmiennosc opadow
    odplyw wody
    zmiennosc odplywu
    forested watershed
    climate change
    runoff decrease
    trend analysis
    Opis:
    Kozienice Forest (central Poland) belongs to very valuable areas from touristic and ecological point of view. Water resources are important factor of further development of this region. Analysis of 49−year (1963−2011) annual and seasonal rainfall and runoff characteristics from a small (82 km²) catchment of Zagożdżonka River, with forestation ratio of 0.40, indicated a statistically significant decrease for six of the nine considered parameters. Mann−Kendall test was used for trend analysis. Decreased trend was indicated for annual runoff and annual runoff coefficient, median discharge, summer half−year runoff coefficient, median summer discharge and for low mean 30−day discharge. No trend was detected for annual precipitation and summer half year precipitation nor for summer half year runoff.
    Źródło:
    Sylwan; 2013, 157, 08; 578-586
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie zespołów ryb w małych rzekach położonych na terenach zalesionych i niezalesionych
    Diversity of fish fauna in small rivers located in forested and non-forested areas
    Autorzy:
    Rechulicz, J.
    Płaska, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/989259.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    tereny lesne
    tereny niezalesione
    zlewnie rzek
    cieki wodne
    rzeki
    fauna
    ryby
    bogactwo gatunkowe
    wskazniki roznorodnosci
    zageszczenie zwierzat
    ichthyofauna
    species richness
    streams
    habitat
    forest catchment basin
    Opis:
    The knowledge on the ichthyofauna community in forest complexes in our country is mainly limited to few information on fish species found in rivers and reservoirs located in the protected areas. Hence, the aim of present study was to evaluate the importance of forested and non−forested areas, which include small rivers, on the occurrence of fish communities. The main criteria of evaluation were species richness, biodiversity and density of fish from rivers located in forested and non−forested areas in Roztocze and Puszcza Solska (south−eastern of Poland). The 12 study sites in the two groups of small rivers located on forested and non−forested areas were chosen (tab. 1). The control fishing was performed by electrofishing using IUP−12 gear. The total of 779 individuals of fish and lamprey belonging to 22 species were caught during the study. In the sections of rivers located in non−forested areas we noted 18 species, while in the rivers in forested areas – 16 ones. The analysis of the abundance domination showed that the dominant species in the rivers sections on non−forested areas were perch, roach and gudgeon, while in rivers located in forested areas: gudgeon, dace and brown trout. Simultaneously, in abundance of fish fauna from rivers in forested area a significant share of eastern sculpin, burbot and European brook lamprey were noted. The fish communities from both habitats showed similar values of biological diversity indices, but slightly higher density was observed in the rivers located in non−forested areas. The fish species composition was highly dependent on the close surroundings of the watercourse and the type of riparian zone. For the habitats from river located in non−forested areas the common, associated with aquaculture and also invasive fish species were characteristic. However, in the rivers in wooded areas, the typical for small streams and the rheophilic fish species were more frequent. The results of present study showed, that the largest differences in the dominance in fish structure and indicators of fidelity to the habitat preferences between the groups of rivers were determined.
    Źródło:
    Sylwan; 2016, 160, 04; 344-352
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ wiatrołomu i degradacji drzewostanu na zróżnicowanie chemizmu wód w zlewni Potoku Kościeliskiego w obszarze Tatrzańskiego Parku Narodowego
    Effect of wind damage to tree stands on spatial differences in water chemistry in the Koscieliski Stream catchment in the Tatra National Park
    Autorzy:
    Żelazny, M.
    Siwek, J.P.
    Fidelus, J.
    Stańczyk, T.
    Siwek, J.
    Rutkowska, A.
    Kruk, P.
    Wolanin, A.
    Jelonkiewicz, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/987105.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    parki narodowe
    Tatrzanski Park Narodowy
    wiatrolomy
    degradacja drzewostanow
    wylesienia
    zlewnie rzek
    zlewnia Potoku Koscieliskiego
    wody odplywowe
    sklad chemiczny
    azotany
    zmiany skladu chemicznego
    water chemistry
    nitrate
    deforestation
    tatra national park
    Opis:
    The study focused on the effects of deforestation by heavy winds and tree stand damage produced by bark beetle invasion on water chemistry of mountainous catchment of Kościeliski Stream in the Tatra National Park (southern Poland). 200 samples of stream and spring water were collected in three series: in July, August and October 2015. Water samples obtained from areas characterized by tree stand damage caused by heavy winds were found to have much higher mean concentration of nitrate (15.44 mg/L) as well as a much higher overall mean nitrate content (3.44% mval/L) than samples obtained from non−deforested areas (3.26 mg/L and 0.78% mval/L). The increase in nitrate concentration and its share in overall water chemistry was high enough that the anion sequence for the deforested areas became altered from HCO3>SO4>NO3>Cl to HCO3>NO3> SO4>Cl. The mean change in water nitrate concentration in areas with tree stands damaged by the bark beetle was smaller (6.17 mg/L; 1.60% mval/L) than that for areas deforested by wind. The concentration of NO3 – in stream water in deforested areas varied more than that in stream water in non−deforested areas.
    Źródło:
    Sylwan; 2017, 161, 01; 27-33
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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