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Wyszukujesz frazę "ancient woodlands" wg kryterium: Wszystkie pola


Wyświetlanie 1-2 z 2
Tytuł:
Ancient Woodlands’ and Synanthropic Plants as Indicators of Maintenance of the Forest Communities in the Nature Reserves of the Oświęcim Basin
Autorzy:
Wilczek, Zbigniew
Romańczyk, Michał
Barć, Alicja
Powiązania:
https://bibliotekanauki.pl/articles/764945.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Tilio-Carpinetum
reserves
ancient woodlands
coefficient of floristic naturalness
Opis:
The landscape of the Oświęcim Basin, naturally dominated by forest communities, has been strongly transformed due to the long-term activities of man. Across time and space, it has been stamped by pond management and agriculture to the highest degree. Despite such a strong transformation of the natural environment fragments of forests which reflect the peculiarities of forest vegetation of the macroregion still occur. These are the Żaki and the Przeciszów nature reserves. The goal of the phytosociological studies done within their borders was the assessment of the Tilio-Carpinetum phytocoenoses which dominate in the reserves, regarding their: maintenance, naturalness, anthropological changes and compliance to anthropopressure, as well as natural values. Therefore, analyses related to the share of: character species, ancient woodland indicators and synanthropes were performed for purposes of the study. It has been proposed that transformations of the forest communities be assessed using the new formula of floristic naturalness coefficient (WNF), based on the share of ancient woodland and synanthropic species.
Źródło:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2011, 7; 111-123
1730-2366
2083-8484
Pojawia się w:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil acid phosphomonoesterase activity and phosphorus forms in ancient and post-agricultural black alder [Alnus glutinosa (L.) Gaertn.] woodlands
Autorzy:
Orczewska, A.
Piotrowska, A.
Lemanowicz, J
Powiązania:
https://bibliotekanauki.pl/articles/57312.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
soil
acid phosphomonoesterase
acid phosphatase activity
phosphorus form
ancient forest plant species
tree stand
forest soil
black alder
Alnus glutinosa
woodland
Polska
post-agricultural soil
Opis:
Black alder, an N-fixing tree is considered to accelerate the availability of phosphorus in soils due to the increased production of phosphatase enzymes, which are responsible for the P release from the litter. Acid phosphatase activity plays a pivotal role in organic P mineralization in forest soils and in making P available to plants. In order to check whether Alnus glutinosa stimulates acid phosphomonoesterase (PHACID) activity, we compared enzyme activities, total P concentration (PTOT), plant-available P (PAVAIL), organic P (PORG) and inorganic P (PINORG), and organic matter content in 27 ancient and 27 post-agricultural alder woods (the latter ones representing different age classes: 11-20, 21-40 and 41-60 years) of soil samples taken from the litter and the mineral layers. Phosphomonoesterase activity, organic matter, PTOT, PINORG and PORG concentrations were significantly higher in ancient alder woods than in the soils of post-agricultural forests. Significant differences in the acid phosphatase activity, organic matter and PAVAIL concentration were noted between the litter and mineral layers within the same forest type. In recent stands the amount of organic matter and phosphatase activity increased significantly with the age of alder stands, although only in the mineral layer of their soils. Phosphomonoesterase activity, organic matter and PAVAIL content were higher in a litter layer and decreased significantly at a mineral depth of the soil. The acid phosphatase activity was significantly correlated with organic matter content in both ancient and recent stands. There was no significant relationship between PHACID activity and any P forms.
Źródło:
Acta Societatis Botanicorum Poloniae; 2012, 81, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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