Informacja

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

Wyszukujesz frazę "larch" wg kryterium: Wszystkie pola


Tytuł:
The Dunkeld larch (Larix x marschlinsii Coaz) in Estonia
Autorzy:
Sander, H
Laanelaid, A.
Powiązania:
https://bibliotekanauki.pl/articles/41729.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
larch
Japanese larch
Larix kaempferi
European larch
Larix decidua
Dunkeld larch
Larix x marschlinsii
Estonia
cumulative growth
dendrochronology
introduction history
tree age
Opis:
It is commonly known that Japanese larch, Larix kaempferi was first introduced in Europe in Great Britain in 1861. In the presence of European larches, L. decidua it was not long before the first hybrids between these species, called Dunkeld larches (Larix × marschlinsii), emerged there. It was found that there were several hybrid larch trees in Estonia that sprouted before one of their parent species was introduced in Europe. One of the oldest Dunkeld larches growing in Tallinn is about 210 years old. The radial growth of three Dunkeld larches in Estonia (in the cities of Pärnu and Tallinn and in the manor park of Suure-Kambja) and the determination of their age by cumulative growth graphs are discussed, with consideration given to the available knowledge on the introduction of Japanese larch. The conclusion is that there may have existed earlier alternative introduction routes of Japanese larch into northern Europe via Russia.
Źródło:
Dendrobiology; 2007, 57; 73-80
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model wzrostu modrzewia europejskiego (Larix decidua Mill.)
Growth model for European larch [Larix decidua Mill.]
Autorzy:
Bruchwald, A.
Zasada, M.
Powiązania:
https://bibliotekanauki.pl/articles/1009318.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
dendrometria
drzewa lesne
modrzew europejski
Larix decidua
modele wzrostu
modele stochastyczne
drzewostany modrzewiowe
struktura drzewostanu
produkcyjnosc lasu
growth and yield model
european larch
forest productivity
stand structure
Opis:
The paper discusses the functioning scheme and components of the stochastic growth model for European larch. The model was presented in the form suitable for processing the periodic forest inventory data (diameter and height of trees measured on fixed sample plots and average stand age). The growth model for larch consists of four main algorithms: introductory, thinning, mortality and incremental. First, the introductory algorithm is run to determine stand characteristics at certain age. Next, the thinning algorithm linked with the mortality procedure is activated. In the next step, incremental algorithm (also coupled with mortality program) is turned on. Thinning and incremental programs are run alternately until the end of prognosis period is reached. One of the most important characteristics of forest stand structure is tree stocking utilized directly by the thinning algorithm. The presented model is suitable for prognosis of European larch stands with any age, site index, stocking and various results of measured diameters and heights. It requires verification based on independent empirical data, preferably from permanent research plots.
Źródło:
Sylwan; 2010, 154, 09; 615-624
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wprowadzenia modrzewia na różnorodność i liczebność chrząszczy ściółkowych w borach mieszanych na terenie Litwy
Effect of larch admixture on forest litter beetle (Coleoptera) communities diversity and number of carabid individuals in mixed coniferous habitats of Lithuania
Autorzy:
Tamutis, V.
Skłodowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1008707.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Litwa
drzewostany mieszane
drzewa lesne
gatunki domieszkowe
modrzew europejski
Larix decidua
sciolka lesna
owady
chrzaszcze
Coleoptera
liczebnosc
zroznicowanie gatunkowe
hibernating beetles
larch
litter
species diversity
Opis:
During winter time, beetle individuals were collected from soil samples taken from a Scots pine culture, an old−growth Scots pine forest, and a European larch culture and old−growth. The following research questions were put forward: (1) Does an admixture of larch in the forest stand contribute to increase in species diversity as well as the numbers of beetle individuals hibernating in the forest litter? (2) Does an admixture of larch in the forest stand result in an increased proportion of beetle species – potentially pests for the forest trees, in the carabid communities? We analyzed data with use PCA, Ward method. The first question should be answered positively. The second question should be answered negatively. The analyses of beetle fauna overwintering in the forest litter as carried out in this paper confirmed the purposefulness of larch introduction as an admixture in pine stands in Lithuania.
Źródło:
Sylwan; 2012, 156, 08; 581-592
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kształtowanie się smukłości modrzewia europejskiego (Larix decidua Mill.) w zależności od siedliska, wieku i pozycji biosocjalnej
Effect of forest habitat type, age and biosocial position on the slenderness of European larch (Larix decidua Mill.)
Autorzy:
Kaźmierczak, K.
Nawrot, M.
Pazdrowski, W.
Najgrakowski, T.
Jędraszak, A.
Powiązania:
https://bibliotekanauki.pl/articles/1008902.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
smuklosc drzew
modrzew europejski
Larix decidua
klasy wieku
warunki siedliskowe
pozycja biosocjalna drzew
slenderness
forest habitat types
biosocial position
larch
Opis:
The study presents the results of MANOVA of tree slenderness. The study material comprised 72 larch trees in a dominant stand of different age classes growing in fresh mixed coniferous (BMśw), fresh mixed deciduous (LMśw) and fresh deciduous (Lśw) forest habitats. The slenderness of each larch tree was calculated as the ratio of tree height [m] to breast height diameter [cm]. Basic statistical characteristics were also established. A three−way analysis of variance was performed assessing the statistical significance of the impact of forest habitat type, age and biosocial position of trees in the stand. A similar analysis was done for two basic measurement characteristics of trees – breast height diameter and height.
Źródło:
Sylwan; 2011, 155, 07; 472-481
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical characteristics of double bark thickness at breast height based on pine (Pinus sylvestris L.), larch (Larix decidua Mill.) and oak (Quercus robur L.)
Statystyczna charakterystyka podwójnej grubości kory drzew na pierśnicy na przykładzie sosny (Pinus sylvestris L.) modrzewia (Larix decidua Mill.) i dębu (Quercus robur L.)
Autorzy:
Kazmierczak, K.
Pazdrowski, W.
Szymanski, M.
Nawrot, M.
Powiązania:
https://bibliotekanauki.pl/articles/9695.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Katedra Zastosowań Matematyki i Informatyki
Tematy:
statistical characteristics
tree bark
bark thickness
breast height
Scotch pine
pine
Pinus sylvestris
larch
Larix decidua
oak
Quercus robur
Źródło:
Colloquium Biometricum; 2009, 39
1896-7701
Pojawia się w:
Colloquium Biometricum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Smukłość modrzewia europejskiego (Larix decidua Mill.) i jej związki z innymi cechami biometrycznymi
Slenderness of European larch (Larix decidua Mill.) and its relationships to other biometric parameters
Autorzy:
Kaźmierczak, K.
Nawrot, M.
Pazdrowski, W.
Jędraszak, A.
Najgrakowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/994964.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
dendrometria
drzewa lesne
siedliska lesne
modrzew europejski
Larix decidua
smuklosc drzew
wiek drzew
piersnice drzew
wysokosc drzew
powierzchnia rzutu korony
srednica korony
dlugosc korony
korelacja cech
larch
slenderness
age
forest habitat type
tree growth area
crown projection area
Opis:
The study presents the relationships between larch slenderness and age, breast height diameter, height, crown width, crown projection area, crown length and habitat type. The study comprised larch trees in a dominant stand of different age classes growing in fresh mixed coniferous (BMśw), fresh mixed deciduous (LMśw) and fresh deciduous (Lśw) forest habitats. The slenderness of each larch was calculated as the ratio of tree height to breast height diameter. The crown projection area was calculated as a circle with a radius equal to the average radius of the crown. The average crown radius was established after its projection in the four main geographical directions. The crown length was calculated as the difference between the height of a tree and the height of crown location. Also an attempt was made to describe tree slenderness using multiple regression equations.
Źródło:
Sylwan; 2012, 156, 02; 83-88
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary results of studies on the effects of organic fertilization and mulching on the growth of one-year old European larch (Larix decidua Mill.) seedlings and occurrence of soil mites under micro-sprinkler irrigation in two sylvan-natural regions of Poland
Autorzy:
Rolbiecki, R.
Rolbiecki, S.
Klimek, A.
Podsiadlo, C.
Powiązania:
https://bibliotekanauki.pl/articles/60215.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
organic fertilization
mulching
plant growth
one-year-old plant
European larch
Larix decidua
seedling
occurrence
soil mite
mite
micro-sprinkler irrigation
Polska
forest region
sewage sludge
bark
sawdust
Acari
Oribatida
Opis:
The aim of the study was to determine the influence of organic fertilization and mulching on the seedling vigour of European larch (Larix decidua Mill.) and occurrence of soil mites (Acari) in forest- and post-arable soils. Two different nursery experiments were carried out in the vegetation period of the year 2005 on light soils at two sylvan-natural regions of Poland. The first trial was conducted at Białe Błota near Bydgoszcz – on a brown podzolic soil. The second experiment – at Lipnik near Stargard Szczeciński – on an acid brown soil. The higher was the rainfall amount during the vegetation period, the lower was the seasonal irrigation rate supplied to European larch seedlings. Because of this the seasonal irrigation water rate applied at Białe Błota was higher than that at Lipnik. European larch seedlings grown on the forest soil were characterized by the increased height and the fresh mass than those cultivated on the post-arable ground. Seedlings grown in the forest soil on treatments mulched with litter were characterized by the increased height and the fresh mass of above-ground parts as compared to those cultivated on control plots (without mulching). Mulching with litter increased the number of mites, especially oribatid mites, as well as their species diversity. It can be recognized as the result of the positive influence of the mulching on the biological properties of the studied soils.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2008, 06
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic identification of alien larch taxa – the case of the Tatra National Park
Autorzy:
Kempf, M.
Hebda, A.
Zieba, A.
Zwijacz-Kozica, T.
Powiązania:
https://bibliotekanauki.pl/articles/2078296.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
taxonomic identification
Larix decidua
Larix kaempferi
Larix × eurolepis
alien species
conser-
vation genetics
Opis:
The natural consequences of introducing alien species can be significant. This is particularly a concern where the taxa have an invasive nature of spreading or in those that freely crossbreed with native species. The hybridization process may lead to impoverishment or even loss of the native gene pool. This is especially dangerous in unique areas that stand out due to their special natural characteristics, such as the Tatra National Park. The determination of the scale of occurrence of alien larch species in the national park and the evaluation of the genetic diversity of the native population is crucial for the conservation of genetic resources and strictly adheres to the latest conservation genetics trends. We evaluated the possibility of effective use of molecular markers for taxonomic identification of the native European larch (Larix decidua Mill.), as well as the alien Japanese larch (Larix kaempferi [Lambert] Carriere) and the hybrid form (Larix × eurolepis Henry). Microsatellite markers were used to analyse the genetic di- versity of individuals identified as European larch from natural refuges and artificial plantings. Of the 148 trees analysed, 105 were identified as the European larch, 38 as Japanese larch, and five as hy- brids. The analysis of the molecular variability of two European larch groups of indigenous and artificial origin showed comparable level of diversity. This study confirmed the effectiveness of the use of selected molecular markers in identification of larch species, which is difficult based on morphological traits. The results indicate the possibility for the effective use of genetic tools in the creation of protection programmes, especially for naturally valuable sites, based on genetic taxonomic identification and richness verification of protected gene pools.
Źródło:
Dendrobiology; 2018, 80; 112-122
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ niektórych właściwości inicjalnych gleb na wzrost modrzewia europejskiego (Larix decidua Mill.) w warunkach rekultywowanego wyrobiska po eksploatacji piasku
Influence of some properties of initial soils on the growth of European larch (Larix decidua Mill.) on reclaimed former sand excavation site
Autorzy:
Krzaklewski, W.
Woś, B.
Stachnik, B.
Pietrzykowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/973916.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Kopalnia Piasku Szczakowa
wyrobiska popiaskowe
tereny zrekultywowane
gleby
modrzew europejski
Larix decidua
tereny przemysłowe
rekultywacja leśna
właściwości fizykochemiczne
drzewa leśne
wzrost roślin
sand excavation sites
reclamation
reforestation
post−mine soils
European larch
Opis:
Paper presents the results of research concerning the influence of properties of initial post−mine soils on the growth of European larch (Larix decidua Mill.) at a former sand excavation pit of the ‘Szczakowa’ Sand Mine (southern Poland) reclaimed 30 years ago. The growth parameters (d.b.h and mean height) depended on the properties of the initial soils at the reclaimed site, particularly on the grain size. The results obtained confirm the usefulness of this tree species for the afforestation of reclaimed former sand excavation sites in their parts built of sand deposits with larger admixtures of silt.
Źródło:
Sylwan; 2011, 155, 10; 653-659
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pierśnica i wysokość drzew a ugałęzienie i proces oczyszczania się strzał na przykładzie modrzewia europejskiego (Larix decidua Mill.) z Sudetów Środkowych
Breast height diameter and tree height in relation to branching and self-pruning of steams based on European larch [Larix decidua Mill.] from the Central Sudety Mountains
Autorzy:
Szymański, M.
Pazdrowski, W.
Kaźmierczak, K.
Zasowski, P.
Nawrot, M.
Powiązania:
https://bibliotekanauki.pl/articles/1013269.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Sudety Srodkowe
ugalezienie
wysokosc drzew
Larix decidua
lasy gorskie
samooczyszczanie
lesnictwo
piersnice drzew
modrzew europejski
drzewa lesne
european larch (larix decidua mill.)
the sudety mountains
self−pruning
timber
wood defects
Opis:
Knots are remnants of branches left on the stem or visible in the side of the tree. They affect wood quality and its final utilisation. The rate of self−pruning depends on many factors, including tree species. The balance of assimilation and disassimilation to a considerable degree determines natural clearance of branches. The aim of the study was to determine the dynamics of natural clearance of branches in European larch (Larix decidua Mill.) varying in breast height diameter and height. Analyses were conducted in stands of different age classes. After mean sample trees were felled (selected according to Urich I) macroscopic observations were conducted, classifying individual zones of the stem into separate classes according to the rate of self−pruning. Analysed traits were found to vary considerably. A strong relationship was shown between breast height diameter, tree height and the length of the knot−free zone. The crown of the analysed forest−forming species retains similar relative length throughout the life of a tree.
Źródło:
Sylwan; 2008, 152, 11; 47-55
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potencjał wzrostowy korzeni sadzonek sosny zwyczajnej, świerka pospolitego i modrzewia europejskiego
Autorzy:
Szeligowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/1022055.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
potencjal wzrostu
sadzonki
Larix decidua
korzenie
Picea abies
sosna zwyczajna
lesnictwo
modrzew europejski
swierk pospolity
Pinus sylvestris
drzewa lesne
scott pine
norway spruce
european larch
root growth potential
storage
Opis:
The paper is an attempt to determine the testing standard of root growth potential of European tree species: pine, spruce and larch. The experiment was conducted in a greenhouse during the dormancy season (February−March). The experimental variants consisted of two methods of seedling storage: the cold store and traditional storage pit. The obtained results revealed that the tested species had poor root growth capacity when compared to Burdett scale and their response range is between 0 and 3. It was noted that the storage method stimulates root production. As a rule the seedlings stored in the pit had higher root growth response than those stored in the cold store.
Źródło:
Sylwan; 2005, 149, 10; 28-34
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model wzrostu dla modrzewia europejskiego (Larix decidua Mill.) wykorzystujący cechy taksacyjne drzewostanu
A growth model for European larch (Larix decidua Mill.) based on stand characteristics
Autorzy:
Bruchwald, A.
Dmyterko, E.
Wojtan, R.
Powiązania:
https://bibliotekanauki.pl/articles/45680.pdf
Data publikacji:
2011
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewostany modrzewiowe
bonitacja drzewostanow
rozklad piersnic
modrzew europejski
Larix decidua
modele wzrostu
Źródło:
Leśne Prace Badawcze; 2011, 72, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność budowy szyszek i powierzchni łusek nasiennych modrzewia europejskiego (Larix decidua Mill.)
Variability of cones and scale surface area of European larch (Larix decidua Mill.)
Autorzy:
Aniszewska, M.
Stadnik, S.
Gendek, A.
Powiązania:
https://bibliotekanauki.pl/articles/46195.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
modrzew europejski
Larix decidua
szyszki
budowa morfologiczna
luski nasienne
zmiennosc
Opis:
The article describes the shape of cones of European larch (Larix decidua Mill.) using the fourth-degree polynomial fitting function. The material was derived from the seed orchard of the Barycz Forest District. The curves were used to calculate the area and volume of single cones. It was not possible to generalize the formulas to calculate the surface and volume of larch cones using the described method, due to the large variability of the empirical coefficients of equations. Finally, to calculate the area and volume of cones, the formula to determine the solid figure of cone was used. The constant αs of 0.43 was introduced to the formula. Calculated volume values were compared to actual volumes measured by a water-filled burette. The mean surface area of larch cones was calculated from the forming function and it was 780 mm2 and the volume was 2434 mm3.Values calculated from cone formulas after taking into account the αs and constants (0.68 and 0.53) were 783 mm2 and 2415 mm3, respectively. The outer and inner surfaces of the seed scales coming from the central part of the larch cones were photographed using Quanta 200 scanning microscope. Specific features of the scales were measured using the Multi Scan Base program. It was found that the outer and inner surfaces of the larch scales, such as pine and fir, were different. On the outer side, scales are formed by thick-walled cells with visible protruding trichomes. And on the inside at the location of the wings and seeds are visible thin-walled cells with jagged cell walls. On the surface of the scales, the appearance of long stem cells, resembling threads, that are absent on pine and fir seed scales was observed.
Źródło:
Leśne Prace Badawcze; 2017, 78, 3
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiana wielkosci krzywizn u modrzewi roznych pochodzen na powierzchni doswiadczalnej w Rogowie
Changes in the size of curvature in larch trees from different provenances at the experimental site in Rogow
Autorzy:
Szeligowski, H.
Andrzejczyk, T.
Szkup, J.
Powiązania:
https://bibliotekanauki.pl/articles/45996.pdf
Data publikacji:
2010
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
proweniencje
modrzew europejski
Larix decidua
strzala drzew
krzywizna
Źródło:
Leśne Prace Badawcze; 2010, 71, 1; 75-80
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Moduł sprężystości przy zginaniu statycznym wybranych proweniencji modrzewia europejskiego (Larix decidua Mill.)
Bending modulus of elasticity of selected provenenances of European Larch (Larix decidua Mill.)
Autorzy:
Szaban, J.
Jakubowski, M.
Kowalkowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/882709.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
lesnictwo
drzewa lesne
modrzew europejski
Larix decidua
proweniencje
drewno modrzewiowe
wlasciwosci mechaniczne
zginanie statyczne
modul sprezystosci
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2014, 16, 2B[39]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł

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