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Wyszukujesz frazę "Falkowski, J" wg kryterium: Autor


Wyświetlanie 1-6 z 6
Tytuł:
Gatunki rodzaju Taraxacum miasta Siedlce
Autorzy:
Glowacki, Z
Krechowski, J.
Falkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/878117.pdf
Data publikacji:
2001
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
florystyka
Taraxacum
wykaz gatunkow
Siedlce
Opis:
The list of 38 Taraxacum species noted in Siedlce city is presented in the paper. Occurrence frequency and state of endangerment of particular taxa are also given.
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika; 2001, 04; 65-69
1508-9193
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stan zachowania flory rezerwatu Biele (Nadleśnictwo Sokołów Podlaski) po 20 latach ochrony
State of the flora of Biele nature reserve [Sokolow Podlaski Forest District] after 20 years of conservation
Autorzy:
Krechowski, J.
Piórek, K.
Falkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/973210.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
rezerwat Biele
flora
rosliny naczyniowe
gatunki chronione
zbiorowiska roslinne
leśnictwo
Nadleśnictwo Sokołów Podlaski
rośliny naczyniowe
gatunki zagrożone
zmiany składu gatunkowego
dynamic tendencies
Biele nature resrve
Nadbużański landscape park
Opis:
The state of the flora of the Biele nature reserve (Sokołów Podlaski Forest District) after 20 years of nature conservation was assessed. Only one species noted in 1989 was not confirmed at present, whereas 38 newcomers were observed. Most of them (30 species) prefer light and half−light/light conditions and are mainly related to non−forest communities. Frequency of synanthropic species is still very low (2.4%) and no anthropophytes were noted in the reserve. All protected and endangered plants, eg. Trollius europaeus, Gladiolus imbricatus, Dactylorhiza fuchsii, except of Carex umbrosa, still occur within its borders. Active protection of Trollius europaeus and Gladiolus imbricatus by removal of brushwood was suggested.
Źródło:
Sylwan; 2010, 154, 06; 429-436
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szata roślinna rezerwatu Mierzwice (Nadleśnictwo Sarnaki) i jej ochrona
Vegetation of the 'Mierzwice' nature reserve and its protection
Autorzy:
Krechowski, J.
Piórek, K.
Falkowski, M.
Wierzba, M.
Powiązania:
https://bibliotekanauki.pl/articles/1311240.pdf
Data publikacji:
2015
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
rezerwaty przyrody
rezerwat Mierzwice
szata roslinna
flora
rosliny naczyniowe
gatunki chronione
gatunki zagrozone
zbiorowiska roslinne
ochrona czynna
Nadlesnictwo Sarnaki
‘Mierzwice’ nature reserve
Sarnaki Forest Inspectorate
vegetation
active protection
Opis:
The ‘Mierzwice’ nature reserve (forest district 206b, c and d of the Sarnaki Forest Inspectorate), situated in the area of the Podlaski Przełom Bug Landscape Park, is one of the most valuable natural assets of the central Bug river valley. The 12.98 ha reserve was established in 2010 to aid protection of the stand of xerothermic vegetation and its surrounding deciduous forest. In total, eight plant associations were identified within the reserve: Geranio-Peucedanetum cervariae, Geranio-Anemonetum sylvestris, Geranio-Trifolietum alpestris, Trifolio medii-Agrimonietum, Rubo fruticosi- Prunetum, Rhamno-Cornetum sanguinei, Potentillo albae-Quercetum and Tilio cordatae-Carpinetum betuli. Furthermore, 23 protected and 31 endangered species were found in the reserve including the following examples: Cephalanthera rubra, Thesium ebracteatum, Cypripedium calceolus, Gentiana cruciata, Anemone sylvestris, Cimicifuga europaea, Viola rupestris, Crepis praemorsa, Asperula tinctoria, Stachys recta, Laserpitium latifolium. Over the last few years, a regression of the species diagnostic number for thermophilous oak forests and xerothermic grasslands has been observed as a result of succession and expansion of Calamagrostis epigejos. Active protection of xerothermic vegetation such as uprooting of trees and bushes, regular grazing or mowing has been suggested in order to prevent the expansion of Calamagrostis epigejos.
Źródło:
Leśne Prace Badawcze; 2015, 76, 2; 168-179
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New Method of Measurement of the Magnetoelastic Characteristics for Tensile Stresses
Autorzy:
Salach, J.
Szewczyk, R.
Bieńkowski, A.
Kolano-Burian, A.
Falkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1507139.pdf
Data publikacji:
2010-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.80.+q
75.50.Kj
Opis:
The paper presents a novel method of measurements of tensile stress dependence of the magnetic characteristics of ring-shaped cores made of soft amorphous alloys. In the presented method, the uniform tensile stress was applied perpendicularly to the magnetizing field direction. Magnetoelastic core with closed magnetic circuit was fixed on the non-magnetic backings enabling the conversion of compressive force into tensile stresses as well as it enables the core to be winded by magnetizing and sensing windings. Magnetoelastic characteristics measured under tensile stress, for $Fe_{25}Ni_{55}Si_{10}B_{10}$ alloy annealed in temperature 350°C for 1 h, are presented in this paper. The presented results indicate high tensile stress sensitivity of $Fe_{25}Ni_{55}Si_{10}B_{10}$ alloy. Moreover, together with magnetoelastic characteristics for compressive stresses (presented previously in the literature), the describes results create possibility of further development of models of the magnetoelastic effects in amorphous alloys.
Źródło:
Acta Physica Polonica A; 2010, 118, 5; 775-777
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Electronic Structure and Specific Heat of $YNi_4Si$
Autorzy:
Pugaczowa-Michalska, M.
Falkowski, M.
Kowalczyk, A.
Timko, M.
Reiffers, M.
Mihalik, M.
Šebek, J.
Šantava, E.
Powiązania:
https://bibliotekanauki.pl/articles/1813671.pdf
Data publikacji:
2008-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.20.Be
71.20.-b
65.40.-b
Opis:
The studies of the electronic structure and the specific heat of $YNi_4Si$ are reported. Below the Fermi energy $(E_F)$ the density of states contains mainly the 3d states of Ni, which hybridized with 4d states of Y and 3p states of Si. The theoretical electronic specific heat coefficient (12.32 mJ/(mol $K^2$)) obtained for equilibrium lattice parameters and the experimental value (13 mJ/(mol $K^2$)) are in a reasonable agreement.
Źródło:
Acta Physica Polonica A; 2008, 113, 1; 323-326
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Puszcza Białowieska - obiekt światowego dziedzictwa UNESCO - priorytety ochronne
The Bialowieza Forest – a UNESCO Natural Heritage Site – protection priorities
Autorzy:
Kujawa, A.
Orczewska, A.
Falkowski, M.
Blicharska, M.
Bohdan, A.
Buholz, L.
Chylarecki, P.
Gutowski, J.M.
Latałowa, M.
Mysłajek, R.W.
Nowak, S.
Walankiewicz, W.
Zalewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/1294308.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Puszcza Bialowieska
Swiatowe Dziedzictwo Kulturowe i Przyrodnicze UNESCO
wartosc przyrodnicza
las naturalny
ochrona przyrody
roznorodnosc gatunkowa
siedliska przyrodnicze
specjalne obszary ochrony siedlisk
natural forests
nature protection
biodiversity
natural ecological processes
forest management
Opis:
Despite the fact that only parts of the Białowieża Forest are protected as a national park and nature reserves, the forest is nevertheless as a whole considered a U NESCO Natural Heritage Site, Biosphere Reserve and an integrated Natura 2000 site. In the presently ongoing debate on the conservation priorities regarding the natural value of this forest and the current bark beetle outbreak, two distinct approaches can be recognized: (1) management assumed to involve considerable interference with the forest ecosystems; (2) maintenance of ecological processes and spontaneous restoration of the forest communities. The Białowieża Forest – especially its strictly protected parts – is a “bastion” where species characteristic of ancient forests (including so-called primeval forest relicts) have survived until today. This has been achieved by maintaining the forest’s complexity in areas with considerably reduced human influence, but most of all by maintaining a full spectrum of forest communities, naturally developing forests diverse in age, species composition and spatial structure including stand dieback and breakdown. The following factors need to be taken into account in the protection of the Natural Heritage Site: (1) the internationally recognized value of the Białowieża Forest including its biodiversity, the level of preservation of forest communities and the ongoing natural processes; (2) existing documents and policies concerning nature conservation; (3) research findings from the Białowieża Forest and other natural forest complexes. The key priority is to limit any activities in this forest to an indispensable minimum, mostly concerning security close to roads and tourist tracks as well as collection of fire wood by locals. Without this strict protection, successive and slow anthropogenic transformation will result in the Białowieża Forest sharing the same fate as other forest complexes of the temperate climate zone in Europe or America and lose its globally appreciated value.
Źródło:
Leśne Prace Badawcze; 2016, 77, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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