Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "K.R." wg kryterium: Autor

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 58
Tytuł:
Zmienność wybranych cech makrostruktury i gęstości drewna dębu czerwonego (Quercus rubra L.) z Polski południowo-wschodniej
Variability of selected macrostructural features and the wood density of northern red oak (Quercus rubra L.) from south-eastern Poland
Autorzy:
Wąsik, R.
Michalec, K.
Powiązania:
https://bibliotekanauki.pl/articles/979284.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
red oak
sapwood
annual rings
latewood
density
Opis:
The aim of the paper was to determine the variability of selected macrostructural features and wood density for northern red oak growing in south−eastern Poland. On 4 study plots, we sampled each tree, taking an increment core from the northern side of the trunk, from the height of 1.3 m. The number of tree rings, width and the share of sapwood was measured. The cores were scanned and then tree ring and latewood widths were measured. The latewood proportion in each ring was calculated. Next, starting from the bark, the cores were divided into sections containing 10 annual rings. The relative wood density was determined for each section, then the density was calculated for entire stem cross−section. The mean sapwood width was 1.5 cm. It included 7 annual rings on average, and its share in the trunk cross−sectional area reached 17%. Younger red oaks (II and III age classes) had a significantly higher share of sapwood compared to older trees (IV and V age classes). The investigated red oaks formed narrow−ring wood with an average width of 2.16 mm. The trees growing on deciduous forest habitat had a more equal tree ring width compared to trees from coniferous forest habitats, where this feature showed also higher variability. The latewood proportion in the studied red oaks was 60% on average. The mean relative wood density was 0.578 g/cm3 and it was slightly higher than the value given for red oaks growing in North America. The calculated absolute density (with an assumed volumetric shrinkage from 12.9 to 13.7%) varied from 0.664 to 0.670 g/cm3. It classifies the investigated wood as moderately heavy. Similar density values are given for native oaks, which allows to assume that the technical quality of the wood of red oaks growing in Poland is similar to native oak species. The wood of trees from deciduous forest habitat showed a significantly higher density and a more equal distribution compared to the trees from coniferous forest sites. The raw material of red oaks obtained from deciduous forest habitats should characterize by a better technical quality of wood in comparison with that obtained from coniferous forest sites.
Źródło:
Sylwan; 2020, 164, 10; 850-859
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzanie lasu w Polsce po drugiej wojnie światowej w świetle źródłowych publikacji Sylwana. Część II. Inwentaryzacja lasu
Forest management in Poland after the Second World War in the light of source publications from 'Sylwan' journal. Part II. Forest inventory
Autorzy:
Magnuski, K.
Jaszczak, R.
Powiązania:
https://bibliotekanauki.pl/articles/1012561.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
okres powojenny
historia
Polska
lasy
fotointerpretacja
lesnictwo
inwentaryzacja lasu
szkody lowieckie
fotogrametria
urzadzanie lasu
forest management
inventory in forest enterprise
Opis:
A review of problems associated with forest inventory was carried out on the basis of articles published in "Sylwan" during the period after the Second World War (up to 2006). The following problems were presented: stand inventory, issues associated with photogrammetry and photo−interpretation in forest inventory, inventory of the health and sanitary condition of forests and inventory of damages caused by wildlife.
Źródło:
Sylwan; 2008, 152, 07; 9-18
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzanie lasu w Polsce po drugiej wojnie światowej w świetle źródłowych publikacji Sylwana. Część III. Regulacja i planowanie w gospodarstwie leśnym
Forest management in Poland after the Second World War in the light of source publications from 'Sylwan' journal. Part III. Regulation and planning in forest enterprise
Autorzy:
Magnuski, K.
Jaszczak, R.
Powiązania:
https://bibliotekanauki.pl/articles/1013144.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
okres powojenny
historia
Polska
planowanie
uzytkowanie lasu
lesnictwo
regulacja uzytkowania rebnego
uzytkowanie rebne
urzadzanie lasu
stand structure
diameter distribution
height distribution
common yew
nature protection
Opis:
The paper presents the stand structure in the "Zdroje" common yew nature reserve in Szczecin. In 2006 the stand was built by 1848 trees that belonged to 14 species. Scots pine was the most numerous species (1067 trees). There were also 533 common yews. The other species were represented by 1−76 specimens. The diameter structure of six the most important species as well as the height structure of a common yew were analysed. Changes in the height structure of a common yew over 28 years were presented as well. No natural regeneration of common yew was observed.
Źródło:
Sylwan; 2008, 152, 08; 3-16
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obecność martwic na pniach drzew stojących a jakość i wartość surowca dębowego
Necroses occurring on trunks of standing trees against the quality and the value of oak timber
Autorzy:
Michalec, K.
Wąsik, R.
Gruchała, K.
Powiązania:
https://bibliotekanauki.pl/articles/989907.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
dab
drzewa stojace
uszkodzenia mechaniczne
martwice drewna
drewno debowe
jakosc
timber damage
defects
mechanical injuries
timber classification
rot
Opis:
This paper aimed to evaluate the impact of necroses occurring on trunks of standing oak trees on their wood quality and value. The research was carried out in five study plots situated in the Meszcze Forestry, Piotrków Forest District (central Poland). The investigations covered: measuring the diameter at breast height of every injured tree with diameter ≥7 cm, estimating the length of the trunk fragment that should be cut off to remove the defect, the assessment of the quality and size of the 3−m butt−end fragment of a trunk, excluding the detected damage or rot (classification I), as well as the quality and size assessment of the same trunk fragment, though including the encountered defect (classification II). The theoretical volume of timber within the particular quality classes was computed (WAt, WBt, WCt and WDt). Afterwards, the real volumes (WAr, WBr, WCr and WDr) were compared with those of groups S2r and S4r. Based on the analysis of the quantity of damaged trees in the investigated trial plots, the lowest share of such specimens was recorded in the compartment 2a (1.6% of defective trees). Whereas, the highest share of damaged trees was encountered in the compartment 39a (8.5%). The timber of more valuable large−sized classes 'migrated', due to damages, to the groups of medium−sized timber (S2 or S4). With respect to the total volume of timber within the particular classes and groups, the greatest loss was reported in the WB class. The timber in question 'migrated' mostly to the group S2, though a part of it was classified to the group S4 as well. The established decrease in the timber value, due to damages to trunks, accounted for ca. 26%, which amounted to ca. 5.8 thous. PLN, in relation to the entire investigated material. The obtained results indicated the necessity to reduce the damages occurring in oak stands and remove the injured trees as soon as possible to avoid a significant depreciation and a value loss of raw wood.
Źródło:
Sylwan; 2015, 159, 09; 740-746
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyniki przebudowy drzewostanów w Nadleśnictwie Doświadczalnym Siemianice
Autorzy:
Jaszczak, R.
Magnuski, K.
Powiązania:
https://bibliotekanauki.pl/articles/1022076.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
drzewostany debowe
rebnie
drzewostany swierkowe
przebudowa drzewostanow
lesnictwo
Nadlesnictwo Doswiadczalne Siemianice
reconstruction
cuttings
transformation cuttings
pine
spruce
oak
Opis:
The study presents results of long−term investigations carried out in the Siemianice Experimental Forest Division on the reconstruction of pine, oak and spruce old forests employing different types of cuttings and their modifications as well as of medium−age pine stands using the author's own original method of 'transformation cutting'.
Źródło:
Sylwan; 2005, 149, 10; 20-27
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzanie lasu w Polsce po drugiej wojnie światowej w świetle źródłowych publikacji Sylwana. Część I. Okresy rozwoju urządzania lasu
Forest management in Poland after the Second World War in the light of source publications from 'Sylwan' journal. Part I. Periods of the forest management development
Autorzy:
Magnuski, K.
Jaszczak, R.
Powiązania:
https://bibliotekanauki.pl/articles/1015641.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
prace urzadzeniowe
rozwoj
okres powojenny
historia
lesnictwo
urzadzanie lasu
cykle rewizyjne
forest management
cycles in the post−war period
development
Opis:
The article presents the development and practical activities of forest management in consecutive cycles of the post−war period (1945−2006) beginning with the elaboration of a rough table of stand age classes, via tentative, definite forest management and further on to the first, second, third and finishing with the fourth (in progress) review management cycle.
Źródło:
Sylwan; 2008, 152, 06; 22-32
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola martwego drewna w regeneracji drzewostanu łęgu jesionowo-olszowego (Fraxino-Alnetum) zasiedlonego przez bobry
Role of the deadwood in regeneration of the ash-alder forest stand (Fraxino-Alnetum) colonized by beavers
Autorzy:
Gawryś, R.
Gabrysiak, K.
Powiązania:
https://bibliotekanauki.pl/articles/979182.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
natural regeneration
black alder
beaver pond
Białowieża Forest
Opis:
The paper concerns the structure of natural regeneration in ash−alder riparian forests (Fraxino−Alnetum) colonized by beavers (Castor fiber) taking into account the substrate, on which it appears (soil and deadwood). Study was conducted in 2016 on twelve sampling plots located in the Orłówka valley in the Białowieża National Park (eastern Poland), where beavers settled around 2005. We counted natural regeneration occurring on the ground and on deadwood on each plot. Also we identified volume of deadwood, decay status and water cover. A decade after the occurrence of beaver ponds, the density of natural regeneration is 5575 saplings per hectare and the regeneration on deadwood is 28% of the total. Black alder is the dominant species. The regeneration occurring on the soil is richer in species and has a larger share of shrub species. In the case of regeneration on the deadwood, seedlings appear first on trees fallen before the flood. Over the time, the role of deadwood as a substrate for the development of regeneration increases and the role of fallen trees is the greater, the greater is the fraction (coverage) of the flooded areas. Studies show that the continuous occurrence of the deadwood accelerates habitat regeneration after a disturbance such as the occurrence of a beaver pond.
Źródło:
Sylwan; 2020, 164, 06; 505-512
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aktywnosc kwasnej fosfomonoesterazy powierzchni korzeni mikoryzowych sosny pospolitej oznaka skazenia srodowiska
Autorzy:
Januszek, K.
Januszek, R.A.
Powiązania:
https://bibliotekanauki.pl/articles/816655.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
korzenie mikoryzowe
aktywnosc enzymatyczna
tereny przemyslowe
fosfataza kwasna
sosna zwyczajna
zamieranie lasow
lesnictwo
bioindykatory
Pinus sylvestris
drzewa lesne
Źródło:
Sylwan; 2000, 144, 04; 87-92
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wieloletnie zmiany składu gatunkowego drzewostanów o podwyższonym reżimie ochronnym w Puszczy Augustowskiej i Puszczy Knyszyńskiej
Long-term changes of tree species composition in high protective regime stands in the Augustow and Knyszyn Forests
Autorzy:
Paluch, R.
Gabrysiak, K.A.
Powiązania:
https://bibliotekanauki.pl/articles/979555.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Puszcza Augustowska
Puszcza Knyszynska
rezerwaty przyrody
drzewostany naturalne
zbiorowiska lesne
sklad gatunkowy
bor brusznicowy
bor mieszany trzcinnikowo-swierkowy
grad miodownikowo-grabowy
odnowienia naturalne
zmiany skladu gatunkowego
zmiany struktury drzewostanu
natural regeneration
forest reserve
natural stand
hornbeam expansion
Opis:
In the last decades, we observed significant changes in the tree species composition in all layers of close−to−natural stands. Since the 1970s, the Forest Research Institute has collected and stored dataset from stand measurements, phytosociological and other research that are the basis for the long−term monitoring of vegetation. The aim of the research was to determine the directions of changes in the species composition and structure of tree stands, and to analyze the changes in the species composition of natural regeneration growing without human interference in various forest communities in the period of about 40 years. From 2014 to 2017, 40 permanent plots of 0.25 ha were re−measured in the nature reserves of the Knyszyn and Augustów Forests (NE Poland). The diameter of all trees was measured and the trees of the natural regeneration and bushes up to 1.3 m high were counted. The stand similarity index (S) between successive measurements was calculated. The analysis of differences in the composition of tree stands in subsequent measurements was carried out using Student t and Kruskal−Wallis tests. In the species composition of fresh coniferous forest stands and fresh mixed coniferous forest, there were significant changes in the number and share of Scots pine and Norway spruce. In the Knyszyn Forest a significant decrease in the share of spruce was observed. However, an increase in the share of deciduous species was remarkable. An inhibition of the natural pine renewal process and increase in density of spruce regeneration was observed. It is necessary to emphasize the significant expansion of hornbeam in a fresh mixed deciduous forest in the Knyszyn Forest and expansion of hazel in the Augustów Forest. Mean basal area in the forest stands has increased. The similarity index between the beginning and the end of the research reached the value of 0.73−0.94. The species composition and density of natural regenerations created without human intervention are not satisfactory from the point of view of forest sustainability. The most important factor affecting the direction and rate of changes in the species composition of tree stands is the expansion of hornbeam and/or hazel. These species cause changes in the ecological conditions of the lowest forest layers, leading to the unification of the species composition of forest communities.
Źródło:
Sylwan; 2019, 163, 10; 846-854
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przydatność dębowych zrębków z całych drzew do przerobu na płyty pilśniowe twarde
Usefulness of oak chips of whole trees for conversion into hartboards
Autorzy:
Gornowicz, R.
Jablonski, K.
Rozanski, H.
Powiązania:
https://bibliotekanauki.pl/articles/813130.pdf
Data publikacji:
1991
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany debowe
dab
zrebki drzewne
zrebki debowe
wykorzystanie
przydatnosc technologiczna
plyty pilsniowe twarde
Źródło:
Sylwan; 1991, 135, 11
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Struktura cech biometrycznych jodly pospolitej [Abies alba Mill.] pochodzacej z podsadzenia w przebudowywanym drzewostanie swierkowym [Picea abies [L.]Karst.] o roznym stopniu przerzedzenia
Autorzy:
Magnuski, K.
Jaszczak, R.
Malys, L.
Powiązania:
https://bibliotekanauki.pl/articles/814560.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
struktura biologiczna
jodla pospolita
wzrost roslin
podsadzenia
cechy biometryczne
Abies alba
drzewostany swierkowe
przebudowa drzewostanow
lesnictwo
Źródło:
Sylwan; 2001, 145, 03; 5-13
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Witalnosc wybranych drzewostanow debowych na potrzeby monitoringu stanu zdrowotnego
Autorzy:
Siwecki, R.
Ufnalski, K.
Ratajczak, M.
Powiązania:
https://bibliotekanauki.pl/articles/815666.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
witalnosc
drzewostany debowe
metody badan
stan zdrowotny lasu
Quercus
lesnictwo
dab
drzewa lesne
Źródło:
Sylwan; 2000, 144, 04; 133-139
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie wapna do zabezpieczenia składowanego surowca świerkowego przed zasiedleniem przez owady kambio− i ksylofagiczne
The use of lime for protection of stocked spruce logs against the infestation by cambio- and xylophagous insects
Autorzy:
Grodzki, W.
Srokosz, K.
Latoń, R.
Powiązania:
https://bibliotekanauki.pl/articles/973160.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
ochrona drewna
zasiedlanie
opryski
ksylofagi
kambiofagi
wapno
skuteczność
drewno świerkowe
leśnictwo
dłużyce
spruce logs
bark beetles
timber protection
lime
Opis:
In April 2005, 2 sets by 3 stacks containing Norway spruce logs were exposed in sunny and shaded place within the forest. In each set logs in 2 stacks were sprayed with Ca(OH)2 aquatic dilution with the addition of milk and vegetable oil (1 stack as a whole, and 1 individually – log by log), and 1 left for control. At the end of June 9 insect species infesting the logs were found, among which the most frequent were Hylurgops palliatus (Gyll.) – 41,1% and Pityogenes chalcographus (L.) – 35,6%. The treated logs were less (sometimes – significantly) infested by the most frequently occurring species, but the difference between two variants of treatment was not very high. The logs exposed in sunny place were less infested than those stocked under stand canopy. As this environmentally friendly treatment reduced the infestation of logs by bark beetles (including I. typographus), it can be recommended especially for mountain areas under protection regime.
Źródło:
Sylwan; 2007, 151, 03; 52-58
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 58

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies