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Wyszukujesz frazę "soil seed bank" wg kryterium: Temat


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Tytuł:
Wpływ buchtowania dzików (Sus scrofa) na glebowy bank nasion grądu Tilio-Carpinetum w Puszczy Białowieskiej
Impact of wild boar (Sus scrofa) rooting on a soil seed bank of oak-linden-hornbeam forest in the Białowieża Forest
Autorzy:
Sondej, I.
Powiązania:
https://bibliotekanauki.pl/articles/979081.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
wild boar
soil seed bank
diaspore
animal−plant interaction
Opis:
The wild boar is an omnivorous animal that disturbs the top soil layer by foraging (rooting). In some regions of Europe seasonal fluctuations in rooting have been observed. Wild boars not only eat plants, but also strongly modify their habitat. In the Białowieża Forest wild boar most frequently visit oak−hornbeam forests growing on fertile soil. On sites where the forest floor is covered with dense vegetation germination of seeds is difficult, and wild boar rooting can promote the removal of diaspores from deeper layers of the soil seed bank. The aim of this study was to assess the impact of wild boar rooting on the soil seed bank in a natural oak−linden−hornbeam forest. Observations were carried out on permanent plots in the strictly protected zone of the Biało− wieża National Park. Samples of the soil seed bank were taken from plots which showed varying intensities of wild boar rooting (frequency and average percentage of exposed ground surface). Areas to be sampled were selected on the basis of archival data. Research was conducted by the seedling emergence method during two vegetation seasons. Altogether, 7985 seedlings of 67 taxa germinated from 240 soil samples. The highest number of germinated seedlings and species were found in the highly rooted plots. In all the series dominant species was Urtica dioica. In the soil seed bank 19 species of anemochory germinated, and accounted for 27.5% of all species present in the seed bank of all series. Permanent wild boar rooting increased the species richness in the soil seed bank and increased the amount of species with higher light requirements.
Źródło:
Sylwan; 2020, 164, 08; 676-682
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Różnorodność glebowego banku nasion i runa wtórnego lasu dębowego w Kozubowskim Parku Krajobrazowym
Soil seed bank and herb layer diversity within secondary oak forest in the Kozubowski Landscape Park
Autorzy:
Halatkiewicz, T.
Jankowska-Błaszczuk, M.
Swiercz, A.
Adamczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/985706.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany debowe
wtorny drzewostan debowy
runo lesne
banki nasion
glebowy bank nasion
Kozubowski Park Krajobrazowy
secondary oak forest
soil seed bank
herb layer structure
nida basin
Opis:
The research concerned the evaluation of the soil seed bank and herb layer diversity in the 60−year old secondary oak forest growing in the Kozubowski Landscape Park (Nida Basin, southern Poland). The aim of the studies was to determine the diversity, similarity and species structure of herb layer and soil seed bank within plots situated at different distances from the forest edge as well as to discuss the obtained data with the results of analogous research which were conducted in the natural oak forest in Białowieża (north−eastern Poland). 12 plots 20×20 m were situated in three zones from edge to the centre of the forest (P, S and L; fig. 1). A total of 134 species of vascular plants were recorded in the analysed herb layer (4800 m2). It was found that in the plots closest to the forest edge, both the Shannon’s diversity index and the average density of the herb layer species were significantly higher than on these located deeper in forest (fig. 2, 3). The soil seed bank contained a total of 2820 seeds belonging to 45 species. The density of the seed bank ranged from 1406/m2 (P) to 1061/m2 and 1057/m2 (S and L, respectively). The seed bank species richness showed a constant decrease from zone P to L (fig. 4). The Sörensen species similarity coefficient between the herb layer and the seed bank for the entire forest was 0.43. Although nearly 90% of the seeds of the whole bank belonged to the species present in the herb layer, the species structure of the above ground vegetation was clearly different from that recorded in the bank. It was found that over 66% of all seeds in the bank belonged to Poa nemoralis. A comparative analysis of the studied oak forest and natural oak forest of Białowieża showed: a similar number of forest species in herb layer per 100 m2, similarly high proportion of ancient forest species in the herb layer, much lower species richness of the seed bank as well as its density in the secondary forest. Our results also point to several times lower values of H’ Shannon−Wiener’s biodiversity index, both in the herb layer and the seed bank in comparison to the undisturbed Białowieża oak forest.
Źródło:
Sylwan; 2019, 163, 05; 415-424
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
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