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1
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Seedling recruitment in peat bogs in contrasting hydrologic conditions

100%
Ejankowski W.
Dendrobiology
|
2010
|
tom 64
The study examined the effect of variation in hydrology on seedling recruitment of shrubs, trees and herbs in peat bogs. The establishment of plants and hydrologic conditions were followed in two peatlands in the Polesie Zachodnie region, Eastern Poland. Meteorological conditions in the study sites ranged from very dry (2006) to very wet (2007) and strongly affected ground water level in the bogs. The emergence of woody species typical for advanced vegetation succession was higher in forest-bog, while the recruitment of typical peat bog plants was higher in open bog. Disturbance in the vegetation positively influencedemergence of typical peat bog species and Betula pubescens, but the effect was only foundin the dry year. Only in Pinus sylvestris did recruitment increase in wet seasons. The results suggested that an increase in the number of woody species in peat bogs may be enhanced during relatively wet seasons and that disturbance in the vegetation cover are not required for seedling recruitment of these plants.
2

Grzyby związane z moroszką (Rubus chamaemorus) i brzozą karpacką (Betula pubescens ssp. carpatica) zebrane w Karkonoszach

84%
Narkiewicz C.
Przyroda Sudetów Zachodnich
|
1998
|
tom 01
3
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Zaleznosc miedzy wysokoscia a piersnica w drzewostanach brzozy omszonej [Betula pubescens Ehrh.] w Biebrzanskim Parku Narodowym

84%
Zasada M.
Sylwan
|
2000
|
tom 144
|
nr 12
51-56
4
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Model rozwoju pedu wierzcholkowego i jego ugalezienia u dojrzalej brzozy omszonej [Betula pubescens Ehrh.]

84%
Dmyterko E., Bruchwald A.
Leśne Prace Badawcze
|
2010
|
tom 71
|
nr 1
21-28
5

Brzozy nasze ukochane

84%
Babelewski P.
Mój Piękny Ogród
|
2010
|
nr 01
42-43
6
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Brzoza w lecznictwie ludowym

84%
Gruszecki R., Nikonczuk I., Zawislak G., Walasek-Janusz M.
Annales Horticulturae
|
2019
|
tom 29
|
nr 4
7

Nitrogen deposition and flux through birch stands [Betula pubescens Ehrh.] in the Kampinos National Park [Central Poland]

67%
Kram K. J.
Polish Journal of Ecology
|
2008
|
tom 56
|
nr 4
605-612
Nitrogen flow through birch stand canopies was studied in the Kampinos National Park (large forested area with inland dunes and wetlands close to Warsaw) during the growing seasons (April-October) of 2005–2006. The amount of nitrogen deposition including main forms like NO₃, NH₄, organic N and the aerosolgaseous fraction of deposition were estimated as well as the influence of birch canopies on this process. Because a method of “artificial foliage” allows to measure an aerosol-gaseous fraction of deposition a gradient of rain collectors equipped with artificial foliage of known surfaces were used. The results were compared with amounts of nitrogen measured in the throughfall of three birch forests. All stands (age 20–50 years) were rather similar, but stand II has smaller LAI (Leaf Area Index = 2.5 m² m⁻²) than stands II and III (3.8 and 3.9 m² m⁻²). It was found that nitrogen deposition in the Kampinos National Park is rather high – 1.6 kg ha⁻¹ month⁻¹. Ammoniumnitrogen made almost half of this value, organic nitrogen – over one third, and nitrate-nitrogen constituted the rest. Aerosol-gaseous input significantly made the deposition increased only in the case of nitrate-nitrogen, but deposition of ammonium- and organic nitrogen were similar and independent of catching leaf area. All fractions of nitrogen were effectively taken up during their passing through birch canopies (57% of nitrogen deposition was retained). Generally two thirds of deposited ammonium-nitrogen, more than half of organic N, and one third of nitratenitrogen were taken up by birch canopies. However, uptake efficiency of all N forms was lower for stand with smallest leaf area with no statistically significant retention of organic N.
8

Drzewo roku 2000 - brzoza cz.1

67%
Czekalski M.
Szkółkarstwo
|
2000
|
nr 2
7-9
9

Succession of tree species on drained bogs in ‘Brzozowe Bagno kolo Czaplinka’ nature reserve, NW Poland

67%
Jagodzinski A. M., Dyderski M. K., Horodecki P., Rawlik K., Gdula A. K.
Polish Journal of Ecology
|
2018
|
tom 66
|
nr 4
Succession of woody species on bogs is a process limited by high groundwater table. In the case of drainage, this limiting factor becomes suppressed and succession may accelerate. The aim of the study was to assess the development of tree stands on a raised bog influenced by drainage and wild fire and to assess the dynamics of woody species encroachment. The study was conducted in the ‘Brzozowe Bagno koło Czaplinka’ nature reserve in NW Poland, where the originally unforested peat bog was influenced by peat harvesting, drainage and fire over 100 years. The diameter at breast height of tree species and natural regeneration were assessed. Six types of tree stands were distinguished: open bog, bog forest with Pinus sylvestris, early-, mid- and late-successional bog forest with Betula pubescens and pioneer forest with Populus tremula, which occurred in the post-fire sites. After ca 100 years of human activity on an unforested peat bog, dense forest emerged on almost all of the study area. Drainage and wildfire influenced tree stand structure. The course of succession most probably goes from open bog to pine bog forest and early-, mid- and late-successional birch forests. Regeneration of B. pubescens is a crucial phase of woody species succession, because this species creates suitable conditions for growth of late-successional species.
10

Badania systematyczno-biometryczne nad rodzajem Betula L. ze Szczelińca w Górach Stołowych

67%
Bialobrzeska M., Truchanowicz J.
Rocznik Dendrologiczny
|
1991
|
tom 39
11
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Accumulation and retranslocation of nitrogen and phosphorus in the foliage of Pinus sylvestris L. and Betula pubescens in chosen woodland ecosystems of the Slovinski National Park

67%
Parzych A., Trojanowski J., Sobisz Z.
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
|
2010
|
tom 14
The study of foliage was carried out in two different forest ecosystems: Vaccinio uliginosi- Betuletum pubescentis and Empetro nigri-Pinetum in the Slovinski National Park in the period of 2002-2005. The largest volume of nitrogen and phosphorus in the litter of coniferous needles was found in early summer at the moment of maximum growth. An average concentration of nitrogen in examined needles was between 1.296% and 1.358% N in Vaccinio uliginosi-Betuletum pubescentis and from 1.010% to 1.118% N in Empetro nigri-Pinetum. The decrease of biogenes concentration in plant tissues was observed in the autumn months as a result of lower demand and recession of biogenes connected with storage of valuable elements in the fatter parts of the trees. In the fall season, a gradual recession of nutrients from the litter of coniferous needles was observed. In Vaccinio uliginosi-Betuletum pubescentis insignificant quantity of nitrogen recesses (average 5.6%) from the new and one year old litter of coniferous needles, including 47.2% N-NH4 and 78.6% N-NO3 and about 21.8% P, including 11.7% P-PO4. In Empetro nigri-Pinetum more intensive recession of biogenes was found from the litter of coniferous needles of common pine than in Vaccinio uliginosi-Betuletum pubescentis. On average 11.5% T-N is translocated, including 41.4% N-NH4 and 23.8% N-NO3 as well as 22.3% P, including 11.8% P-PO4.
12

Zmiennosc wybranych cech morfologicznych brzoz z przeobrazonych siedlisk torfowisk wysokich okolic Chlebowa w Puszczy Noteckiej

67%
Danielewicz W., Maciejewska I.
Rocznik Dendrologiczny
|
1994
|
tom 42
23-36
13

Macromycetes rezerwatu Jegiel

67%
Domanski Z.
Acta Mycologica
|
1993
|
tom 28
|
nr 2
185-199
14

Brzozy w Polsce

67%
Jadwiszczak K.
Ekonatura
|
2012
|
nr 02
15

Brzoza w weterynarii

67%
Aniol-Kwiatkowska J.
Wiadomości Zielarskie
|
1994
|
tom 36
|
nr 04
19-20
16

Brzoza biala pani naszych lasow

67%
Karczmarczuk R.
Aura
|
1998
|
nr 12
20-21
17

Opisanie brzoz

67%
Sylwan
|
1840
|
tom 16
|
nr Zeszyt z półrocza Igo [1-2]
18
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Wzrost wybranych gatunkow drzew lesnych w uprawach plantacyjnych w roznych warunkach siedliskowych

59%
Zaleski A., Kantorowicz W.
Prace Instytutu Badawczego Leśnictwa. Seria A
|
1998
|
nr 852-855
5-49
19

Lecznicze drzewa. Cz.II

59%
Kalinowska J.
Wiadomości Zielarskie
|
2002
|
tom 44
|
nr 12
7-9
20

Brzozy zrodlem surowcow zielarskich o ustalonym dzialaniu terapeutycznym

59%
Kozlowski J., Gorecki P.
Wiadomości Zielarskie
|
1995
|
tom 37
|
nr 04
1-3
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