Wyniki wyszukiwania

1

Metoda pozyskiwania informacji o rzezbie terenu z map topograficznych jako podstawa do sporzadzania i generowania map nachylen i ekspozycji terenu oraz promieniowania slonecznego dla obszarow gorskich

100%

Gorecki A.

Wiadomości Instytutu Melioracji i Użytków Zielonych

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1997

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tom 19

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nr 2

21-28

2

Ocena uwilgotnienia stoku zlewni w warunkach zmiennego uzytkowania i ekspozycji

100%

Niemiec J.

Roczniki Akademii Rolniczej w Poznaniu. Melioracje i Inżynieria Środowiska

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2004

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tom 25

407-412

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Kształtowanie się jakości surowca świerkowego w zależności od wysokości nad poziomem morza i wystawy

100%

Michalec K.

Sylwan

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2011

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tom 155

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nr 06

4

Osobliwości demutacji roślinności na stokach o różnej ekspozycji kamieniołomu w Kazimierzu Dolnym nad Wisłą

100%

Soroka M., Wozniak A., Kutnik E.

Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura

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2016

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tom 71

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nr 2

5

Wpływ rzeźby terenu na bonitację i cechy wzrostowe drzewostanów sosnowych na wydmach Kotliny Toruńskiej

80%

Sewerniak P.

Sylwan

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2016

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tom 160

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nr 08

The aim of the study was to determine the impact of land relief on site index and growth parameters (height, diameter, slenderness) of Scots pine (Pinus sylvestris) stands on inland dunes in the Toruń Basin (N Poland). The study was conducted on 150 plots situated on north− and south−facing dune slopes (54 pairs of twin plots) as well as in intra−dune depressions (42 plots). Height and diameter of ten the thickest pines per 0.1 hectare was measured, and next site index as a potential height of a stand at the age of 100 years was calculated. As the results of the used equation, site index was strongly (R²=0.58) negatively biased to age, so the bias was removed using an elaborated regression model. For stands older than ca. 20 years, the clear higher site index values as well as higher heights and diameters were found for intra−dune depressions than for slopes of the two studied aspects. This was explained by the occurrence of much more fertile and moister soils in depressions. The only age class for which the advantage of site index and growth parameters was not stated for depressions was the youngest class (≤20 years old). This was likely caused by the competitive impact on young pines of Calamagrostis epigejos which prefers intra−dune depressions on inland dunes and forms in forest floor usually dense cover in this position. Impact of contrasting slope aspect was clearly related in the study to age of a stand. For the youngest studied age class both site index values as well as heights and diameters were lower on north− than on south−facing slopes. This was explained by the effect of weeds which form more dense cover on slopes of this aspect than on sunny slopes. For older stands; however higher site index values as well as heights and diameters were revealed for north−facing slopes, due to pines likely took advantage of higher moisture of soils occurring in this place. With reference to slenderness, regardless stand age the parameter was regularly the highest for north− than both for south−facing slopes and depressions. Because of the revealed distinct higher productivity of intra−dune depressions in normally dry and poor in nutrients dune landscape, it could be reasonable to use the depressions to introduce admixtures of broadleaved tree species into pine monocultures on inland dunes.

6

Wplyw wybranych czynnikow orograficznych na zywotnosc jodly [Abies alba Mill.], buka [Fagus sylvatica L.] i sosny [Pinus sylvestris L.] w Swietokrzyskim Parku Narodowym

80%

Podlaski R.

Sylwan

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2000

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tom 144

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nr 12

77-82

7

Intensywność mineralizacji igieł w borze sosnowym w odniesieniu do warunków siedliskowych i mikrobiologicznych stoków wydm o kontrastowej ekspozycji

80%

Sewerniak P., Jasinska J., Golinska P., Skladanowski M.

Sylwan

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2015

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tom 159

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nr 10

The aim of the study was to determine the rate of mineralization of needles in a pine stand in relation to site and to microbiological conditions occurring on dune slopes of contrasting aspects. The research was conducted in the old−growth pine forest overgrowing a latitudinally located dune in the Bydgoska Forest (N Poland). On contrasting dune slopes (northern and southern) rate of mineralization of pine needles was investigated in the 2−years experiment (2012−2014) with the litterbag method. Besides, following investigations were conducted in the middle part of both slopes: 1. dynamics of soil moisture and soil temperature were measured at a depth of 3 cm for 18 days during the 2013 growing season (interval of 2 weeks was applied) and 2. populations of bacteria and fungi were determined for all subhorizons of organic soil horizon (Ol, Of, Oh) as well as for a mineral horizon (AEs) of both soils. Weight loss of needles was found to be higher on northern than on a southern slope what was consequently stated for all 4 terms of taking measurements (6, 12, 18 and 24 months after placement of litterbags). The discrepancy has increased with time and after 2 years it equaled 14.7% when the loss was 61.1% for northern and 46.4% for a southern slope. It could be surprising that such differences were found in spite a sunny slope was characterized by stated in a study higher soil temperature. It should have a stimulating effect on mineralization of organic material; however a soil located on a southern slope was also found as much drier. Thus, the periodic deficiency of soil moisture was indicated as a limiting factor for occurrence of both bacteria and fungi on a southern slope due to the numbers of both groups of microorganisms were much lower on the slope than on a northern aspect. Conditioned by more favourable site parameters, higher number of microbial population occurring on a shadow slope could explain higher rate of mineralization of needles stated for the slope aspect. The moisture factor can be of especially high significance for microbial occurrence and activity and thus for litter decomposition just in dry inland dune ecosystems. It was concluded that in relatively monotonous pine forests overgrowing dry and poor in nutrients soils of inland dunes the slope aspect is an agent significantly differentiating both site and soil microbial conditions.

8

Wplyw ekspozycji i wysokosci n.p.m. na dynamike drzewostanow w strefie gornej granicy lasu w Bieszczadzkim Parku Narodowym

80%

Kucharzyk S.

Roczniki Bieszczadzkie

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2005

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tom 13

173-201

9

Ekspozycja stoków wydm w Kotlinie Toruńskiej a wybrane elementy ekosystemu boru sosnowego – wstępne wyniki badań

80%

Sewerniak P., Bednarek R., Szymanska A.

Leśne Prace Badawcze

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2011

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tom 72

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nr 1

10

Krajobraz sakralny zwiazany z ciekami wodnymi, na przykladzie 'Szlaku kosciolow drewnianych wokol Puszczy Zielonka'

80%

Raszeja E., de Mezer E.

Architektura Krajobrazu. Studia i Prezentacje

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2010

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nr 1

25-33

11

Wpływ wysokości otaczającego drzewostanu, wystawy i pochylenia terenu na mikroklimat adiacyjny na gnieździe - wyniki modelowania

80%

Bolibok L., Brach M., Szeligowski H., Orzechowski M.

Sylwan

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2015

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tom 159

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nr 10

Different kinds of solar radiation (direct, diffuse) shape microclimate of forest gaps and have significant influence on establishment and growth of young trees. Adjustment of the shape and size of artificial gaps could create favourable conditions that meet the demands of particular species. Unfortunately there is lack of publications concerning this topic, which could be used directly for silvicultural planning in Polish conditions. Empirical assessment of radiation regimes in a wide range of different shaped gaps is impossible from practical reasons, so modelling in ArcGis environment was used instead. Gaps of different shape and size were modelled as elliptical depression in terrain by the use digital elevation model. The Solar Radiation tool was used to model direct and global radiation on the bottom of the gaps with area varying between 2 and 50 are surrounded by stands of height between 15 to 35 meters. The outcome of modelling was presented in form of nomograms. Additional series of analyses was created to describe the influence of terrain aspect and inclination on solar radiations supplies on the forest floor in gaps. Presented nomograms could be helpful in silvicultural planning, because they could be used to design artificial gaps with expected solar radiations supplies.

12

Struktura i dynamika przyrostu grubosci drzew w drzewostanach swierkowych masywu Skrzyczne

80%

Ochal W.

Sylwan

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2000

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tom 144

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nr 01

75-85

13

Walory krajobrazowe doliny Łyny w obrębie granic Olsztyna

80%

Gadomska W.

Humanistyka i Przyrodoznawstwo. Uniwersytet Warmińsko-Mazurski w Olsztynie

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2003

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tom 09

14

Flora i zbiorowiska chwastow zboz w Beskidzie Wyspowym w zaleznosci od usytuowania siedlisk w rzezbie terenu

71%

Hochol T.

Fragmenta Agronomica

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2001

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tom 18

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nr 3

7-122

Ograniczanie wyników

Metoda pozyskiwania informacji o rzezbie terenu z map topograficznych jako podstawa do sporzadzania i generowania map nachylen i ekspozycji terenu oraz promieniowania slonecznego dla obszarow gorskich

Ocena uwilgotnienia stoku zlewni w warunkach zmiennego uzytkowania i ekspozycji

Kształtowanie się jakości surowca świerkowego w zależności od wysokości nad poziomem morza i wystawy

Osobliwości demutacji roślinności na stokach o różnej ekspozycji kamieniołomu w Kazimierzu Dolnym nad Wisłą

Wpływ rzeźby terenu na bonitację i cechy wzrostowe drzewostanów sosnowych na wydmach Kotliny Toruńskiej

Wplyw wybranych czynnikow orograficznych na zywotnosc jodly [Abies alba Mill.], buka [Fagus sylvatica L.] i sosny [Pinus sylvestris L.] w Swietokrzyskim Parku Narodowym

Intensywność mineralizacji igieł w borze sosnowym w odniesieniu do warunków siedliskowych i mikrobiologicznych stoków wydm o kontrastowej ekspozycji

Wplyw ekspozycji i wysokosci n.p.m. na dynamike drzewostanow w strefie gornej granicy lasu w Bieszczadzkim Parku Narodowym

Ekspozycja stoków wydm w Kotlinie Toruńskiej a wybrane elementy ekosystemu boru sosnowego – wstępne wyniki badań

Krajobraz sakralny zwiazany z ciekami wodnymi, na przykladzie 'Szlaku kosciolow drewnianych wokol Puszczy Zielonka'

Wpływ wysokości otaczającego drzewostanu, wystawy i pochylenia terenu na mikroklimat adiacyjny na gnieździe - wyniki modelowania

Struktura i dynamika przyrostu grubosci drzew w drzewostanach swierkowych masywu Skrzyczne

Walory krajobrazowe doliny Łyny w obrębie granic Olsztyna

Flora i zbiorowiska chwastow zboz w Beskidzie Wyspowym w zaleznosci od usytuowania siedlisk w rzezbie terenu