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Wokół zespolenia służb specjalnych
(Zakład Bezpieczeństwa Narodowego, Uniwersytet Jagielloński, 2020-01-22)
Powyborczy okres w aparacie bezpieczeństwa wewnętrznego Polski przebiegał pod znakiem Mariana Banasia. Jego sprawa raz jeszcze przypomniała, jak nieszczelne, lub zgoła nieobecne, są procedury bezpieczeństwa wewnętrznego i ...
Applicable ultrafast all-optical switching by soliton self-trapping in high index contrast dual-core fiber
(IOP Publishing on behalf of Astro Ltd., 2020-01-10)
Improvement potential of ultrafast all-optical switching by soliton self-trapping using all-solid dual-core fibers with high index contrast was analyzed numerically. Study of the femtosecond nonlinear propagation was ...
Problematyka uprawy lipy drobnolistnej Tilia cordata Mill. na plantacjach nasiennych
(Instytut Badawczy Leśnictwa, 2021-03)
The the first seed orchards of lime trees Tilia cordata Mill. were established in Poland in the Susz Forest district in 1985. Currently, there are 21 seed orchards of this species in the country in order to satisfy the ...
Zróżnicowanie roślinności leśnej Nadleśnictwa Herby
(Instytut Badawczy Leśnictwa, 2021-12)
The phytosociology of the forests in the Herby Forest District has not been thoroughly examined so far with the exception of a few studies that concentrated on small parts of afforested areas. One of the main aims of this ...
Liczebność i stanowiska bobra europejskiego w Magurskim Parku Narodowym w latach 1996–2021
(Instytut Badawczy Leśnictwa, 2021-12)
In recent years, a significant growth in the population of the European beaver Castor fiber L., both in Poland and around the world, has been observed. Beavers significantly transform the natural environment around the ...
Historia zaniku zimoziołu północnego Linnaea borealis L. na terenie Lasów Rogowskich
(Instytut Badawczy Leśnictwa, 2021-10)
Linnea borealis L. is a postglacial relict in Poland, where it occurs at the edge of its southern range. It is a moderately
heliotropic species, associated with coniferous forests. The aim of this study was to collect, ...
Możliwości wykorzystania procesów sukcesyjnych w przebudowie drzewostanów na gruntach porolnych na przykładzie Nadleśnictwa Wielbark
(Instytut Badawczy Leśnictwa, 2021-03)
In the Wielbark Forest District, and many other forest districts in Poland, disturbances caused by annosum root rot Heterobasidion annosum (Fr.) Bref. have been observed regularly in timber stands cultivated on post-agricultural ...
Nowe stanowiska derenia rozłogowego Cornus sericea L. w otulinie rezerwatu przyrody Skarpa Ursynowska w Warszawie
(Instytut Badawczy Leśnictwa, 2021-10)
Red osier dogwood Cornus sericea L. is a species native to NorthAmerica, but spreading in Europe. It has been classified a kenophyte in Poland and is considered invasive. However, knowledge on its distribution is insufficient ...
Stwierdzenie rysia Lynx lynx w Puszczy Białej na podstawie materiału z fotopułapki
(Instytut Badawczy Leśnictwa, 2021-10)
On the 21st June 2021 at 10:17 PM, one lynx individual was recorded in the area of the Wyszków Forest District by
a camera trap (Browning Spec Ops Advantage). The device was set up as part of a study on the behaviour of ...
Zmienność nasion Pinus sylvestris L. z uwzględnieniem barwy okrywy nasiennej
(Instytut Badawczy Leśnictwa, 2021-03)
The aim of this work was to compare the variability of Scots pine Pinus sylvestris L. seeds collected in three forest sites in the Radomsko Forest District. This comparison was mainly based on viability and weight of 1000 ...