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Wyszukujesz frazę "Drozdowski, H." wg kryterium: Autor


Tytuł:
X-ray Analysis of Intermolecular Interactions in Liquid 2-chloronaphthalene at 353 K
Autorzy:
Drozdowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/2036984.pdf
Data publikacji:
2003-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.25.Em
Opis:
The aim of the study was to examine the structure of liquid 2-chloronaphthalene C$\text{}_{10}$H$\text{}_{7}$-Cl at 353 K by the X-ray diffraction method. Monochromatic radiation Mo K$\text{}_{α}$,λ= 0.71069Å was used to determine the scattered radiation intensity between S$\text{}_{min}$=4πsinθ$\text{}_{min}$/λ=0.430Å$\text{}^{-1}$ and S$\text{}_{max}$= 4π sinθ$\text{}_{max}$/λ=14.311Å$\text{}^{-1}$. The curves of reduced intensity were analysed by the reduction method of Blum and Narten. Experimental distribution of X-ray scattered intensity was compared with theoretical results predicted for a proposed model of 2-chloronaphthalene molecule. The differential radial distribution function 4π r$\text{}^{2}$Σ$\text{}_{j,k}^{n}$ K$\text{}_{j}$[ρ$\text{}_{k}$(r)-ρ$\text{}_{0}$] was calculated and some intra- and intermolecular distances in liquid 2-chloronaphthalene were determined. X-ray structural analysis was applied to determine the packing coefficient of 2-chloronaphthalene molecules at 353 K. The intermolecular distance Cl ··· Cl' was also determined as 7.90±0.15Å. A simple model of short-range arrangement of the molecules was proposed, which seems to be valid for other weakly polar monosubstituted naphthalene derivatives in the liquid phase.
Źródło:
Acta Physica Polonica A; 2003, 104, 5; 441-458
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
X-ray Analysis of Liquid 1-Methylnaphthalene Structure at 293 K
Autorzy:
Drozdowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/2014543.pdf
Data publikacji:
2000-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.25.Em
Opis:
The paper reports results of the X-ray diffraction structural studies of liquid 1-methylnaphthalene, C$\text{}_{10}$H$\text{}_{7}$-CH$\text{}_{3}$ at 293 K, using Mo K$\text{}_{α}$ radiation of the wavelength λ=0.71069 A. The interpretation of the results was carried out using the reduction method of Blum and Narten. Experimental distribution of X-ray scattered intensity was compared with theoretical results predicted for a proposed model of 1-methylnaphthalene molecule. The electron-density radial-distribution function was calculated and some intra- and intermolecular distances in liquid 1-methylnaphthalene were determined. The structural data obtainable by X-ray analysis for liquid 1-methylnaphthalene are discussed. X-ray structural analysis was applied to determine the packing coefficient of 1-methylnaphthalene molecules. The electron-density radial-distribution function 4πr$\text{}^{2}$ ∑$\text{}_{j,k}^{n}\overline{K}\text{}_{j}$[ρ$\text{}_{k}$(r) — ρ$\text{}_{0}$] was calculated and some intra- and intermolecular distances in liquid 1-methylnaphthalene were determined. The structural data obtainable by X-ray analysis for liquid 1-methylnaphthalene are discussed. X-ray structural analysis was applied to determine the packing coefficient of 1-methylnaphthalene molecules.
Źródło:
Acta Physica Polonica A; 2000, 98, 6; 691-703
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
X-ray Diffraction Studies of Liquid Methylcyclohexane $C_6H_{11}-CH_3$ Structure at 293 K
Autorzy:
Drozdowski, H.
Nowakowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/1812249.pdf
Data publikacji:
2008-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.25.Em
Opis:
The structure of methylcyclohexane $C_6H_{11}-CH_3$ at 293 K was investigated using the X-ray diffraction method. An angular distribution of X-ray radiation scattered in liquid methylcyclohexane was measured. The observable range of scattering angles was 6°≤2Θ≤120°. Monochromatic radiation Mo K_αenabled determination of the scattered intensity between $S_\text{min}=0.92 Å^{-1}$ and $S_\text{max}=15.313 Å^{-1}$. The differential radial distribution function of electron density was calculated. The mean structural parameters of liquid methylcyclohexane (inter- and intramolecular distances, radii of coordination spheres, and packing coefficient) were determined and discussed. The most probable binary radial correlation of molecules in liquid methylcyclohexane was proposed. The approach proposed in this paper gives a good description of intermolecular interactions in liquids and is a useful X-ray method for their analysis. The paper presents the structure and molecular correlations in liquid methylcyclohexane determined for the first time by the X-ray diffraction method. The study of methylcyclohexane is a continuation of our studies of cyclohexane derivatives cyclohexylamine and 2-methylcyclohexane. The aim of the study was to establish a relation between the cis and trans isomers and the conformation of the cyclohexane derivatives in the liquid phase.
Źródło:
Acta Physica Polonica A; 2008, 114, 2; 383-389
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular Correlations in Liquid mono- and Dlichloroalkanes
Autorzy:
Bochyński, Z.
Drozdowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/1945392.pdf
Data publikacji:
1996-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.25.Em
Opis:
This paper reports results of the X-ray diffraction structural studies of a series of liquid monochloroalkanes (chlorohexane, chlorooctane, chlorodecane, chlorododecane) and dichloroalkanes (1, 6-dichlorohexane, 1, 8-dichlorooctane, 1, 10-dichlorodecane, 1, 12-dichlorododecane) performed at 20 and 40°C. From the X-ray diffraction patterns, obtained using Mo K$\text{}_{α}$ radiation of the wavelength λ = 0.7107 Å, the mean angular distributions of intensities were determined. Then, the functions of radial distributions of electron density were numerically found using Fourier analysis. The mean structural parameters of the studied liquids (the inter- and intramolecular distances, the radii of coordination spheres, the coordination numbers) and the local arrangement of their molecules were established. The intermolecular arrangements in the studied liquid mono- and dichloroalkanes were found to be similar. Correlations were found between certain physical and chemical properties of the studied compounds and the spatial arrangement of their molecules.
Źródło:
Acta Physica Polonica A; 1996, 89, 4; 547-554
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ przygotowania gleby na zagęszczenie, wzrost i jakość samosiewów sosny w warunkach podokapowych
The effect of soil preparation on density, growth and quality of natural regeneration of pine under the canopy
Autorzy:
Andrzejczyk, T.
Drozdowski, S.
Szeligowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/1026387.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
wzrost roslin
samosiewy
hodowla lasu
przygotowanie gleby
lesnictwo
odnowienia naturalne
odnowienia podokapowe
scots pine
natural regeneration
soil preparation
Opis:
The studies were conducted in the years of 1997−2001. The effect of four methods of soil preparation (ploughing with double mouldboard plough LPZ−75, disc plough PTL−2, disc harrowing and ridge formation) on natural regeneration of pine under the canopy shelter was analysed. Significant differences in the density, height and vitality of seedlings in the variant II (ploughing with disc plough) and variant IV (ridge formation) were found in the second and third year of studies. In the following years the differences between the variants were insignificant due to the heavy damage of seedlings caused by the cockchafer larvae. Neither of the methods applied protected the seedlings against this damage.
Źródło:
Sylwan; 2003, 147, 03; 19-27
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ mechanicznego przygotowania gleby na zrębie na jej cechy
Effect of mechanical site preparation on features of the soil in a clear-cut area
Autorzy:
Aleksandrowicz-Trzcińska, M.
Drozdowski, S.
Żybura, H.
Powiązania:
https://bibliotekanauki.pl/articles/986611.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
zreby
przygotowanie gleby
zabiegi mechaniczne
maszyny lesne
plug LPZ
plug aktywny jednotalerzowy
frez lesny
gleby lesne
wlasciwosci fizyczne
wlasciwosci chemiczne
forest plough
active plough
forest mill
soil scarification
clear−cut
Opis:
In most cases, mechanical site preparation (MSP) is a precondition if high−quality (natural or artificial) regeneration of forests is to be achieved. However, the measures involved here may differ in terms of the level of intervention of the soil environment, at both the surface and deeper down. The choice of MSP methods should be based on climatic conditions, site type and the species whose renewal is sought, while the effect should improve conditions for the emergence and growth of the young generation of trees, with the influence on the soil environment being limited as far as possible. The research sought to compare physical and chemical features of the soils of the microhabitats created in clear−cut areas as a result of MSP using either an LPz double mould−board forest plough (furrow and ridge), an active plough (furrow and ridge) and a forest mill (belt and beyond the belt) as compared with unscarified soil. Investigated physical features included grain size (content of sand, silt and clay), bulk density and actual moisture, while the chemical ones: pHH2O and pHKCl, exchangeable acidity, total content of N and C and the C/N ratio, P2O5 content and base cations Mg2+, Ca2+, K+ and Na+. The most invasive MSP method for the soil environment is the active plough, which leaves the ridge exposed to processes of the decomposition of organic matter (and the highest content of N, C, Mg2+, Ca2+ and K+). Equally, this method may pose the greatest threat of mineral components of the soil being leached, with impoverishment of the habitat ensuing. The forest mill in turn offers the least invasive MSP. Most of the physical and chemical features of soil (other than exchangeable acidity and pHH2O and pHKCl) both in the belt areas and beyond them differed little from the those characterising non−scarified soil. Also the analysed features determined for the furrows ploughed by the active or LPz ploughs or the belt prepared using the forest mill did not differ significantly.
Źródło:
Sylwan; 2018, 162, 08; 648-657
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ rodzaju podłoża, sterowanej mikoryzacji i aplikacji fungicydów w szkółce na wzrost dębu szypułkowego w uprawie
Effect of the substrate type, controlled mycorrhization and application of fungicides in the nursery on the growth of pedunculate oak in the plantation
Autorzy:
Aleksandrowicz-Trzcińska, M.
Żybura, H.
Drozdowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/992254.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
szkolki lesne
produkcja sadzonek
podloza uprawowe
mikoryzowanie sadzonek
ochrona roslin
fungicydy
Bayleton 25 WP
Falcon 460 EC
Nimrod 250 EC
Siarkol Extra 80 WP
sadzonki
dab szypulkowy
Quercus robur
uprawy lesne
wzrost roslin
fungicides
quercus robur
mycorrhization
plantation
seedling growth
powdery mildew
Opis:
The effect of the controlled mycorrhization with the fungus Hebeloma crustuliniforme, the application of fungicides (Bayleton 25 WP, Falcon 450 EC, Nimrod 250 EC and Siarkol Extra 80 WP) in the nursery and the use of two types of substrate (a mixture of sterilized Estonian peat with vermiculite and unsterilized Polish peat with perlite) on the growth, level of infestation by powdery mildew and form (single, multi−stem) of oak trees in the first four years after planting was analysed. The type of the substrate and controlled mycorrhization did not affect the growth of young trees. Oaks treated with Nimrod in the nursery were the tallest after outplanting, but grew slower compared to trees in other variants. The oaks protected with the triazole fungicides (Falcon and Bayleton) in the nursery showed higher level of infestation by powdery mildew in the plantation.
Źródło:
Sylwan; 2013, 157, 03; 187-196
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wysokość siedmioletnich odnowień dębowych na gniazdach w różnych warunkach siedliskowych
The height of seven-year-old oaks growing in gaps in different forest habitats
Autorzy:
Bolibok, L.
Andrzejczyk, T.
Drozdowski, S.
Szeligowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/45960.pdf
Data publikacji:
2011
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
hodowla lasu
rebnie gniazdowe
odnowienia lasu
drzewa lesne
dab szypulkowy
Quercus robur
wysokosc drzew
warunki siedliskowe
wielkosc gniazd
zyznosc siedliska
Źródło:
Leśne Prace Badawcze; 2011, 72, 2
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sposób powstawania, struktura i produkcyjność drzewostanów bukowo-modrzewiowych w Polsce
Polish beech-larch stands: their structure, productivity and processes of generation
Autorzy:
Andrzejczyk, T.
Bolibok, L.
Drozdowski, S.
Szeligowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/45706.pdf
Data publikacji:
2011
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewostany mieszane
drzewostany dwupietrowe
drzewostany bukowo-modrzewiowe
zasobnosc drzewostanu
struktura drzewostanu
wiek drzew
buk zwyczajny
Fagus sylvatica
odnowienia lasu
Źródło:
Leśne Prace Badawcze; 2011, 72, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Południkowa zmienność warunków radiacyjnych w obrębie gniazd na terenie Polski – wyniki modelowania
Latitudinal variability of the radiation microclimate in artificial forest gaps in Poland – the modelling perspective
Autorzy:
Bolibok, L.
Brach, M.
Drozdowski, S.
Szeligowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/46188.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
rebnie gniazdowe
gniazda
warunki radiacyjne
promieniowanie sloneczne
natezenie promieniowania slonecznego
szerokosc geograficzna
zmiany warunkow radiacyjnych
modelowanie
Źródło:
Leśne Prace Badawcze; 2016, 77, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wybranych cech jodły pospolitej (Abies alba Mill.) na powierzchni proweniencyjnej w Rogowie
Characteristics of silver fir (Abies alba Mill.) in a provenance trial in Rogow
Autorzy:
Szeligowski, H.
Bolibok, L.
Buraczyk, W.
Drozdowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/46281.pdf
Data publikacji:
2011
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
jodla pospolita
Abies alba
proweniencje
przezywalnosc
wzrost roslin
wysokosc drzew
piersnice drzew
zywotnosc drzew
wartosc hodowlana
Źródło:
Leśne Prace Badawcze; 2011, 72, 3
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wartość hodowlana polskich populacji sosny zwyczajnej na powierzchni doświadczalnej w Rogowie
Silvicultural value of Scots pine provenances from Poland on the experimental plot in Rogow
Autorzy:
Szeligowski, H.
Buraczyk, W.
Drozdowski, S.
Gawron, L.
Powiązania:
https://bibliotekanauki.pl/articles/973327.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
sosna zwyczajna
Pinus sylvestris
proweniencje
LZD Rogow
leśnictwo
wartość hodowlana
doświadczenia prowieniencyjne
scots pine
provenance variation
silvicultural value
yield
Opis:
The paper analyses the variability of selected adaptive, growth and morphological parameters of 16 Scots pine provenances from Poland. Their silvicultural value and usefulness under the growth conditions in Central Poland were assessed. The empirical part was carried out on the experimental plot established in spring 1966 in Lipce Reymontowskie Forest Range, Rogów Forest Experimental Station. In subsequent surveys, the following characteristics were determined for each tree: diameter at the breast height, height, height of crown base and diameter of branches. All trees were also classified into 4 quality classes related to the stem straightness. The following analyses were performed: survival rate, course of height growth and diameter increment over age, variation of volume at single trees and whole stands level, diameter of branches, stem straightness, selected genetics and silvicultural properties. The assessment of silvicultural values pointed out that the best provenances include Dłużek, Karsko, Bolewice and Rychtal. Local provenances from Rogów and Spała are classified as the weak ones. Therefore in local Scots pine stands there is a need to improve quality, stability and yield. Obtained results deepen an existing knowledge on variability of Scots pine stands and demonstrate possibilities for verification of seed regionalization principles in Poland.
Źródło:
Sylwan; 2015, 159, 12; 997-1007
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ sposobu przygotowania gleby na cechy odnowienia naturalnego sosny zwyczajnej (Pinus sylvestris L.) w Nadleśnictwie Spychowo
Effect of mechanical site preparation methods on characteristics of the natural regeneration of Scots pine (Pinus sylvestris L.) in Spychowo Forest District
Autorzy:
Aleksandrowicz-Trzcińska, M.
Drozdowski, S.
Ligocki, M.
Żybura, H.
Powiązania:
https://bibliotekanauki.pl/articles/987039.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
Nadlesnictwo Spychowo
odnowienia naturalne
przygotowanie gleby
sosna zwyczajna
Pinus sylvestris
siewki
zageszczenie roslin
przezywalnosc
wzrost roslin
soil scarification
self−sowing
seedling density
seedling growth
clear−cut
Opis:
Mechanical site preparation is recommended to create optimum conditions for seed germination and seedling growth in a clear−cut area. Lack of soil scarification or less−intense methods may be more suitable from an environmental point of view, but can result in a failure to obtain natural regeneration. This study compared the effects of three mechanical site preparation methods (SPM) characterized by different levels of soil scarification (i.e. double mould−board forest plough (LPz), active plough (PA) or forest mill (FL)), as well as a control variant without mechanical site preparation, on height, density, spatial distribution and survival among naturally regenerating Scots pines (Pinus sylvestris L.) in the first 2 years of growth in a clear−cut area of NE Poland. The experiment was based around a four−block randomized block design involving the four variants. Seedling height was measured at the end of the first and second growing seasons, with measurements performed on 8 meter−wide transects extending across the entire width of the cleat−cut. We found no effect of SPM on seedling height, though the density of seedlings regenerating naturally was found to be dependent. After two years, the highest density was achieved in the PA variant (8.1 seedlings/m2) and the FL variant (7.0 seedlings/m2). A significantly lower density characterized the LPz variant (5.1 seedlings/m2) and the lowest of all the variant without soil scarification (3.2 seedlings/m2). The most homogeneous natural regeneration was achieved following the use of PA (2.6% of 1 m2 plots without seedlings after two growing seasons), while the least homogeneous was the variant without soil scarification (22.4% of 1 m2 plots). Survival of pines after the second growing seasons was quite high (over 80%), and did not differ significantly depending on the SPM. Our research therefore confirmed that, in the absence of mechanical site preparation, natural regeneration of sufficient density and homogeneity cannot be obtained. The best natural regeneration was obtained on sites prepared with PA, and FL scarification being only slightly less favorable. The low density and uneven distribution of seedlings on the soil prepared with LPz was a surprising result. The probable reason for this lay in the high precipitation in the first growing season. On one hand, this provided very good moisture conditions for seed germination and seedling growth on a substrate with high porosity in the PA and FL variants, but on the other the high bulk density of mineral soil in the LPz variant led to oxygen deficit.
Źródło:
Sylwan; 2017, 161, 03; 196-207
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wilgotności i gatunku gleby na wzrost mikoryzowanych sadzonek sosny zwyczajnej (Pinus sylvestris L.)
Effect of soil moisture and soil type on the growth of mycorrhizal seedlings of Scots pine (Pinus sylvestris L.)
Autorzy:
Buraczyk, W.
Szeligowski, H.
Drozdowski, S.
Aleksandrowicz-Trzcinska, M.
Powiązania:
https://bibliotekanauki.pl/articles/46371.pdf
Data publikacji:
2012
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
szkolkarstwo lesne
mikoryzowanie sadzonek
grzyby mikoryzowe
Hebeloma crustuliniforme
sosna zwyczajna
Pinus sylvestris
sadzonki mikoryzowane
wzrost roslin
doswiadczenia wazonowe
podloza uprawowe
piasek
pyly
wilgotnosc podloza
zyznosc gleb
Źródło:
Leśne Prace Badawcze; 2012, 73, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ sposobu postępowania z pozostałościami zrębowymi i przygotowania gleby na zrębie na wzrost sosny zwyczajnej (Pinus sylvestris L.) w 6-letniej uprawie
Effects of logging slash management methods and soil preparation methods on the clear-cut on growth of 6-year-old Scots pine (Pinus sylvestris L.) stand
Autorzy:
Żybura, H.
Aleksandrowicz-Trzcińska, M.
Drozdowski, S.
Wołczyk, Z.
Powiązania:
https://bibliotekanauki.pl/articles/989272.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
zreby
pozostalosci zrebowe
postepowanie z pozostalosciami zrebowymi
przygotowanie gleby
odnowienia lasu
odnowienia przez sadzenie
sosna zwyczajna
Pinus sylvestris
uprawy sosnowe
wzrost roslin
przezywalnosc
zageszczenie drzew
logging slash
planting
scots pine
soil preparation
Opis:
Different methods of logging slash management (LSM) and methods of soil preparation (MSP) can create different conditions for the growth of forest trees. This occurs through variation in soil aeration, tree nutrition or microbial conditions. These factors are modified by climate, soil fertility, treats from insects or fungal pathogens and renewed species. The aim of this study was to compare effects of three LSM methods: 1) crushing and mixing with the soil by Mery Crusher, 2) chopping and leaving on the soil surface, and 3) removal from the clear−cut, and three MSP: 1) double−mouldboard forest plough LPz−75, 2) active plough U−162, and 3) forest mill FAO−FAR FV 4088 on biometric parameters, density and survival of six−years old Scots pine seedlings. Field research was conducted in Narol Forest District (south−eastern Poland). The soil in the study area was classified as brown podzolic, formed on loose sands with typical mor humus.The experiment was established by planting 10 000 one−year−old pine seedlings per hectare, after clear cut and followed by a two−factor block design consisting of nine variants distinguished on the basis of LSM and MSP randomly assigned to each of the three blocks. Tree height and root collar diameter were measured three times, at the end of 1st, 3rd and 6th growing season. The results showed no statistically significant differences in the size of the analyzed parameters of planted seedlings. Seedlings in the variant with site preparation by crusher and forest mill were slightly higher and thicker. This indicates the better trophic conditions in that variant. LSM did not affect either seedlings density or their survival. A slightly higher survival rate and tree density occurred in variants with crusher regardless of soil preparation method. It follows that, all presented experimental variants give similar results. Therefore, selection of the most appropriate methods of site and soil preparation should primarily respect ecological and economic indicators, and such local factors as microclimate, mainly precipitation, site fertility and threats from pests and fungal diseases.
Źródło:
Sylwan; 2016, 160, 04; 267-276
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ skracania systemów korzeniowych dwuletnich sadzonek świerka pospolitego (Picea abies L. Karst.) na ich wzrost po posadzeniu
Influence of root system shortening of two-year-old seedlings of Norway spruce (Picea abies L. Karst.) on their growth after planting
Autorzy:
Buraczyk, W.
Drozdowski, S.
Szeligowski, H.
Gawron, L.
Karpiuk, M.
Powiązania:
https://bibliotekanauki.pl/articles/1008907.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
swierk pospolity
Picea abies
sadzonki dwuletnie
skracanie korzeni
wzrost roslin
norway spruce
root shortening
nursery
regeneration
Opis:
The paper presents investigation on influence of root shortening on growth of 2−years−old Norway spruce seedlings after their development in the nursery. Measurements of basic morphological features reveal that strong length reduction increases regeneration of spruce root system. Together with that, slight decrease in height and diameter increment of the main shoot can be observed. Shortening of spruce roots improves significantly the balance between above− and belowground parts of the seedlings as well.
Źródło:
Sylwan; 2011, 155, 07; 482-492
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ mykoryzacji i chitozanu na wzrost sosny zwyczajnej (Pinus sylvestris L.) w szkółce i na uprawie
Effect of mycorrhization and chitosan on the growth of Scots pine (Pinus sylvestris L.) in nursery and plantation
Autorzy:
Aleksandrowicz-Trzcińska, M.
Hamera-Dzierżanowska, A.
Żybura, H.
Drozdowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/994290.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
szkolkarstwo lesne
produkcja szkolkarska
Biochikol 020 PC
mikoryzowanie sadzonek
grzyby mikoryzowe
Hebeloma crustuliniforme
material szkolkarski
sadzonki
sosna zwyczajna
Pinus sylvestris
wzrost roslin
szkolki lesne
uprawy lesne
biochikol 020 pc
chitosan
ectomycorrhiza
hebeloma crustuliniforme
pinus sylvestris
Opis:
The study evaluated the effect of inoculation with Hebeloma crustuliniforme and application of Biochikol 020 PC to the soil in three doses (single, double and triple) on the growth of Scots pine in the nursery and plantation. Both treatments stimulated the growth of seedlings. The effect of Biochikol was found only in the nursery irrespective of the used doses of the preparation. The effect of mycorrhization on pine growth was stronger compared to the application of Biochikol both in the nursery and plantation.
Źródło:
Sylwan; 2013, 157, 12; 899-908
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność sosny zwyczajnej (Pinus sylvestris L.) w doświadczeniu serii IUFRO 1982 w Nadleśnictwie Rogów
Variability of Scots pine (Pinus sylvestris L.) provenances in the IUFRO 1982 series experiment in Rogow Forest District
Autorzy:
Szeligowski, H.
Buraczyk, W.
Drozdowski, S.
Studnicki, M.
Bolibok, L.
Powiązania:
https://bibliotekanauki.pl/articles/972943.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
sosna zwyczajna
Pinus sylvestris
proweniencje
LZD Rogow
wzrost roślin
żywotność drzew
leśnictwo
wartość hodowlana
powierzchnie doświadczalne
scots pine
provenance
growth
health status
silvicultural quality
Opis:
This paper describes the variability of Scots pine (Pinus sylvestris L.) provenances in the IUFRO experiment located in Rogów (central Poland). The silvicultural quality and growth of 17 European provenances at the age of 28 years were examined, including height, diameter at breast height, standing volume, straightness of stem and health status. Populations from Poland (Spała, Miło−młyn, Rychtal), Germany (Betzhorn, Lampertheim), France (Haguenau) and Hungary (Pornóapáti) characterized by the best growth parameters. In contrast, pines from Northern (Russia, Sweden) and Southern (Turkey, Montenegro and Bosnia and Herzegovina) Europe were smaller and thinner and, as a result, with lower standing volume. The smallest differences of pine populations were found in tree height. The highest mean tree height (11.68 m) was reported for Rychtal (Poland) provenance, while the lowest (6.77 m) for Çatacik (Turkey). The overall mean tree height in the whole experiment was 9.83 m. Diameter at breast height (dbh) varied more than the tree height. The highest mean dbh (129.91 mm) was reported for Haguenau (France) provenance, while the lowest (72.85 mm) again for Çatacik (Turkey). The overall mean dbh for all provenances equaled 107.12 mm. The highest differences of pine populations were found in the standing volume. The highest standing volume (19.05 m3/ha) was obtained for Pornóapáti (Hungary) provenance, while the lowest (163.72 m3/ha) again for Çatacik (Turkey). In terms of silvicultural quality, the northern provenances were classified as the best ones because of high proportion of trees with straight stems. The largest share of tress with straight stems occurred in the population of Serebryanskoe from Russia (60.8%), while the smallest of Haguenau from France (6.9%). The populations from Southern Europe (Maočnica, Prusačka Rijeka and Çatacik) show poor adaptation to environmental conditions of central Poland.
Źródło:
Sylwan; 2016, 160, 03; 230-237
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wielocechowa ocena potomstwa populacji buka zwyczajnego (Fagus sylvatica L.) z południowo-wschodniej Polski w początkowych latach wzrostu
Multivariable evaluation of the early growth performance of European beech (Fagus sylvatica L.) provenances from south-eastern Poland
Autorzy:
Buraczyk, W.
Szeligowski, H.
Studnicki, M.
Drozdowski, S.
Bielak, K.
Powiązania:
https://bibliotekanauki.pl/articles/989437.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
buk zwyczajny
Fagus sylvatica
proweniencje
drzewa potomne
przezywalnosc
wzrost roslin
cechy fenologiczne
jakosc hodowlana
doswiadczenia proweniencyjne
Nadlesnictwo Losie
genetic variability
growth parameters
morphological traits
phenology
progeny testing
Opis:
European beech is one of the most important broadleaved tree species in Poland and will play probably even more significant role in the future due to the predicted climate change. The main objectives of this study was to analyse and compare the growth parameters and morphological traits between 23 European beech provenances from south−eastern Poland (fig. 1). The research was conducted on the experimental plot established in Łosie Forest District in 2006. The experiment employed a randomized complete block design consisting of 92 plots (23 provenances×4 blocks). On each plot 100 trees representing given provenance were planted in 1.5×1.5 m spacing. In the spring and autumn 2015 we measured and determined the following parameters for the subsample of 36 trees on each plot: survival rate, tree height, diameter at breast height, diameter of the branch at the middle height of the crown length, stem straightness, crown shape, tendency to create forks, mean angle between stem and branches and spring phenology. We also included different eco−physiographical characteristics for each provenances (tab. 1). We performed basic statistics to describe mean values and standard errors (fig. 2, tab. 2) and finally we quantified the interaction between traits and eco−physiographical characteristics by Principal Component Analysis (PCA) (fig 3, tab. 3). The obtained results indicates that under growth conditions on experimental trial in Łosie Forest District, the provenances from lower elevated regions with lower precipitation and higher mean temperature (i.e. more arid conditions; Kielce and Narol provenances) were characterized by thicker dbh and branch dimeters in contrast to regions from southern Poland (Łosie, Bricza 1, Stary Sącz and Nawojowa). European beech provenances from regions with more humid conditions and lower mean annual temperature, as well as shorter vegetation season are characterized by higher survival rate. They are also higher than other provenances, but reveal the lower ratio dbh to branch diameter.
Źródło:
Sylwan; 2016, 160, 12; 981-992
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ warunków siedliskowych na zróżnicowanie wysokości dębu na gniazdach
Effect of habitat conditions on the variation of oak height in the gaps
Autorzy:
Andrzejczyk, T.
Bolibok, L.
Buraczyk, W.
Drozdowski, S.
Szeligowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/991003.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
rebnie zupelne gniazdowe
hodowla lasu
odnowienia lasu
odnowienia na gniazdach
drzewa lesne
dab szypulkowy
Quercus robur
wzrost roslin
warunki siedliska
siedliska lesne
bor mieszany swiezy
las mieszany swiezy
las swiezy
pedunculate oak
clear−cut gap
plantations
forest regeneration
patch cutting system
Opis:
The paper presents the study on the height of 10−12−year−old pedunculate oak regeneration in clear−cut gaps in three fertility variants: mezotrophic of poorer productivity (fresh mixed coniferous forest – BMśw), mezotrophic of higher productivity (fresh mixed deciduous forest – LMśw) and eutrophic (fresh deciduous forest – Lśw). BMśw and LMśw were represented by two locations: Gostynin (G) and Parczew (P), while Lśw – by one: Czarna Białostocka (CzB). We analysed the variation of oak height in the patches along the north−south (N−S) and east−west (E−W) gap axes. In each location 3−5 gaps were selected and measurements taken on three transects along the N−S axis located in the western (W), central (C) and eastern (E) part. Significant differences in oak height were found along the N−S axis. Oaks in the BMśw and LMśw habitats in the south−central part, and those in the Lśw habitat in the centre−northern part of the patch were the highest. The height growth of oaks on sandy soils (BMśw, LMśw) was found to be limited by moisture deficit, while on loamy soils (Lśw) – by light deficiency. The differences in oak height along the E−W axis were smaller and less apparent, indicating a tendency towards the reduction of their height growth in the central part of the gap.
Źródło:
Sylwan; 2014, 158, 06; 404-413
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zaawansowane metody przygotowania danych terenowych do symulatora szczebla taktycznego VBS2
Advanced methods of terrain data preparation for VBS2 simulator
Autorzy:
Koszela, J.
Drozdowski, T.
Niedziela, M.
Ostap, H.
Wantoch-Rekowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/305981.pdf
Data publikacji:
2013
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
VBS2
symulacja
dane terenowe
simulation
terrain data
Opis:
Artykuł zawiera opis procesu wytwarzania danych terenowych dla szczebla taktycznego VBS2. Zaprezentowano model terenu wykorzystywany w tym symulatorze oraz formaty danych terenowych, na podstawie których generowany może być wskazany teren. Następnie przedstawiono technologie i środowiska wykorzystane do generacji terenu ze wskazaniem najważniejszych właściwości. Zarówno w przypadku formatów danych (SHP, GDB, VPF, TDED), jak i narzędzi szczególną uwagę zwrócono na aspekt dostępności do specyfikacji dostępnych formatów danych. Artykuł kończy opis procesu generacji danych terenowych dla wybranego obszaru rzeczywistego na potrzeby VBS2.
The paper contains a description of the terrain data preparation for the virtual simulator VBS2. A model of terrain use in the simulator was presented. The technology and the software used to generate terrain data with the most important properties was presented. The specification of the main data formats was presented (SHP, GDB, VPF, TDED). The article concludes with a description of the process of generation of terrain data for the selected area.
Źródło:
Biuletyn Instytutu Systemów Informatycznych; 2013, 11; 15-22
1508-4183
Pojawia się w:
Biuletyn Instytutu Systemów Informatycznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charge Traps in Ce-Doped CaF$\text{}_{2}$ and BaF$\text{}_{2}$
Autorzy:
Drozdowski, W.
Przegiętka, K. R.
Wojtowicz, A. J.
Oczkowski, H. L.
Powiązania:
https://bibliotekanauki.pl/articles/1994795.pdf
Data publikacji:
1999-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.60.Kn
73.50.Gr
29.40.Mc
Opis:
Thermoluminescence of CaF$\text{}_{2}$:Ce, BaF$\text{}_{2}$, and BaF$\text{}_{2}$:Ce irradiated at room temperature is reported. X-ray induced emission spectra of the samples show that both excitonic (due to e$\text{}^{-}$+V$\text{}_{K}$ recombination) and Ce$\text{}^{3+}$ d-f luminescence may contribute to thermoluminescence signal. The simple Randall-Wilkins model is used to deconvolute glow curves into seven to eight first-order peaks. Parameters of all traps are calculated and correlations between peaks in the curves of the examined materials are discussed.
Źródło:
Acta Physica Polonica A; 1999, 95, 2; 251-258
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost mikoryzowanych i niemikoryzowanych sadzonek sosny zwyczajnej (Pinus sylvestris L.) w warunkach zróżnicowanej wilgotności i żyzności podłoża
Growth of mycorrhized and non-mycorrhized Scots pine (Pinus sylvestris L.) seedlings on substrates varying in moisture content and fertility
Autorzy:
Buraczyk, W.
Szeligowski, H.
Aleksandrowicz-Trzcińska, M.
Drozdowski, S.
Jakubowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/995070.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
drzewa lesne
gleby lesne
gleby porolne
wilgotnosc gleby
zyznosc gleb
sosna zwyczajna
Pinus sylvestris
sadzonki mikoryzowane
grzyby mikoryzowe
Hebeloma crustuliniforme
sadzonki niemikoryzowane
wzrost roslin
scots pine
seedling
mycorrhization
hebeloma crustuliniforme
container−grown seedlings
Opis:
The article compares the impact of production technique, planting material, soil type and moisture on the growth of pine seedlings. The material used in the experiment comprised pines grown in containers to which controlled mycorrhization with the fungus Hebeloma crustuliniforme was applied, as well as pines that had not been mycorrhized. The seedlings were grown in pots on two types of substrate (forest and post−agricultural soil) varying in cohesiveness and fertility. Four moisture levels (20%, 30%, 40% and 50%) were adopted.
Źródło:
Sylwan; 2012, 156, 02; 100-111
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność wybranych cech potomstwa buka zwyczajnego (Fagus sylvatica L.) na powierzchni testowania w Nadleśnictwie Łosie
Variability of selected features in progeny of the common beech (Fagus sylvatica L.) grown on the experimental plot in the Losie Forest District
Autorzy:
Szeligowski, H.
Buraczyk, W.
Drozdowski, S.
Bielak, K.
Widawska, Z.
Będkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/979509.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewa lesne
buk zwyczajny
Fagus sylvatica
proweniencje
drzewa potomne
zmiennosc cech
przezywalnosc
wysokosc drzew
piersnice drzew
fenologia
wartosc hodowlana
doswiadczenia proweniencyjne
Nadlesnictwo Losie
common beech
provenance
variability
silvicultural value
lesnictwo
hodowla lasu
Opis:
This paper presents the genetic variability in the growth parameters and morphological traits, as well as the silvicultural quality of progeny of 23 European beech (Fagus sylvatica L.) provenances from south−eastern Poland. The research was conducted on the experimental plot established in the Łosie Forest District in spring 2006. After 10 years, during the spring and autumn, we determined and measured the spring phenology and survival rate, the diameter at breast height (dbh), the tree height, and the straightness of trunk. The results obtained point out the considerable variability of analysed features, both within and between different beech populations (tab.). Highest and lowest survival rates are noted for the beeches from Lutowiska and Leżajsk (populations 451 and 461), respectively (fig. 2). Lowest mean height and dbh were achieved by beeches from Bircza (453), while the tallest and broadest trees were from the Kielce population (390) (fig. 3−4). The overall silvicultural assessment based on survival, height, dbh, spring phenological phases and straightness of the trunk revealed that the most valuable populations of beech are those originating from Kielce (390), Bircza (454), Strzyżów (459), Lesko (452), Rymanów (457) and Lutowiska (451). In turn, the analysis resulted in least favourable assessments for beeches from Bircza (453) and Gromnik (362). Thus, we confirmed also that trees of local origin are not always best−adapted to (and do not always grow best in) the place they originate from. The obtained results are highly relevant from the principles of creating the seed source regions for beech in Poland, as the proper selection of a population for the given place of growth may yield benefits for forest ecology and management.
Źródło:
Sylwan; 2019, 163, 03
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł

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