Wyniki wyszukiwania - Biblioteka Nauki

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Zbiornik intercepcyjny brzozy brodawkowej (Betula pendula Roth)

100%

Osuch B. , Homa A. , Feliks M. , Kulig M.

Czasopismo Techniczne. Środowisko

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2005

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tom R. 102, z. 10-Ś

103--118

EN

The aim of the paper is the description of the tree interception reservoir which, in this case, is the reservoir of European white birch (Betula pendula Roth). The target is to determine the interception capacity of an arbitrary species tree. A method is sought for determining the interception capacity of the reservoir of a tree which retains on its surface, in its structure, certain amounts of rain water passing from the atmosphere to the ground surface here the plant lives. To give the sought reservoir the physical sense, the reservoir base was accepted as the tree surface (two-side leaf area plus bark area), while the reservoir height was defined as the average depth of water layer that can be retained on the surface. The measured leaf area and bark area exhibit strong correlation with the breast height diameter and tree shoot diameter. It is therefore possible to determine the tree leaf and bark area based on the measured breast height diameter and tree height.Experimentally determined average depth of water layer on tree green and bark surfaces enables the tree interception reservoir height to be determined. Due to this, after making inventory of trees on the representative plot of the forest area, and taking into account its age and compactness, there will be the possibility to calculate its interception capacity. In this paper a method of calculating of the interception reservoir capacity of European white birch occurring frequently as single species or as an addition to other forest communities. As regards to its structure, the birch represents a specific tree type. Up today, in the Hydrology Section of the Institute of Water Engineering and Water Management of Cracow University of Technology, there were developed descriptions of interception reservoirs of other trees, both coniferous and deciduous, as spruce (Picea abies), oak (Quercus robur), hornbeam (Carpinus betulus), and pine (Pinus silvestris).We hope that the descriptions of reservoirs of various tree species will be integrated into a common description in future.

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Teledetekcyjna analiza sukcesji brzozy omszonej {Betula pubescens Ehrh.) na terenie Parku Narodowego Thingvellir, Islandia

84%

Strzeliński P. , Wencel A.

Roczniki Geomatyki

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2006

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tom T. 4, z. 2

139-145

EN

The paper presents the use of satellite remote sensing to vegetation succession analysis in Thingvellir National Park in Iceland. The research had the below aims: 1) analysis of succession of common white birch (Betula pubescens Ehrh.) 2) an assessment of quantity of birch trees 3) classification of basic types of vegetative cover 4) analysis of possibilities of use of remote sensing data in Thingvellir National Park. The paper encompassed analysis and interpretation of SPOT5 satellite images of the park and its surroundings (taken in 2003) and digital maps produced on the basis of aerial photographs and field observations (from the years 1955.1978). The analysis has covered fenced part of the park (5002 ha). Within the framework of field work, decision of number and kind of vegetation classes was made. As much as 4 classes were fixed and verified in the field . grass cover, moss cover, broad-leaved/birch cover, coniferous cover. The maps of the scale: 1:50 000 i 25 000 were made, and then verified in the field. The vegetation classes constituted respectively: grass cover . 1.0% of the park area, moss cover . 19.0%, broad-leaved trees/birch . 54%, coniferous trees . 0.3%. There was also the class .others. (25.7% of the park area), which encompasses all areas having no meaning for final results and areas which are impossible to classify. Selected data concerning birch (on the basis of SPOT5 and field control) were compared to data from the years 1972.1978. Unfortunately, precise quantity comparison was impossible due to differences in accuracy of data (date from the years 1972.1978 are less precise). Hence only area comparison was made. In the years 1955.2003 area covered by birch did not changed considerably, still it is the dominant class in respect of area. Presently common white birch covers 2705 ha which is 54% of Thingvellir National Park area within borders from before 2004 and 66% of land area. The project concerned the forests and birch thickets in Thingvellir National Park commissioned by Skógrćkt Ríkisins and RALA (Institut of Forest and Agricultural Research). The main works on project have been done from the beginning of July to the end of September 2005.

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Wpływ ściółkowania ektopróchnicą na wzrost siewek brzozy brodawkowatej oraz występowanie roztoczy glebowych w warunkach nawodnień w szkółce leśnej Bielawy

67%

Rolbiecki S. , Klimek A. , Rolbiecki R. , Kuss M. , Fórmaniak A. , Ryterska H.

Ekologia i Technika

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2011

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tom R. 19, nr 2

73-80

PL

Celem przeprowadzonych badań było określenie wpływu ściółkowania ektopróchnicą pozyskaną z boru świeżego na wzrost siewek brzozy brodawkowatej oraz na występowanie roztoczy (Acari) glebowych, w warunkach prowadzenia nawodnień deszczownianych. Doświadczenie jednoczynnikowe przeprowadzono w latach 2008-2009 w szkółce leśnej Bielawy koło Torunia, w Nadleśnictwie Dobrzejewice. Doświadczenie zostało założone metodą losowanych bloków, w czterech powtórzeniach. Badanym czynnikiem było ściółkowanie przeprowadzone (wrzesień 2008) w dwóch wariantach (C - kontrola - bez ściółkowania; S - ściółkowanie). Ściółkowanie zostało wykonane na wybranych zależnie od układu doświadczenia poletkach świeżą próchnicą nadkładową, którą pozyskano (w dniu jej aplikacji w szkółce) z siedliska boru świeżego. W substracie tym występowała liczna, żywa mezofauna glebowa. Zastosowano dawkę 100 m3 ha-1, rozkładając ektopróchnicę w miarę równą warstwą w poszczególnych międzyrzędziach siewek brzozy stosownego pasa, a następnie zmieszano ją z warstwą gleby do głębokości ok. 1-2 cm. Cała powierzchnia doświadczeń była nawadniana przy użyciu deszczowni stałej ze zraszaczami NAAN 5035. Nawadnianie prowadzono zgodnie z wytycznymi nawadniania szkółek leśnych na powierzchniach otwartych. Wzrost siewek określano w październiku 2008 i 2009 r. Mierzono wysokość siewek (cm), średnicę w szyi korzeniowej (mm) oraz masę części nadziemnych (g). Wycinki gleby do badań akarologicznych pobierano czterokrotnie (w czerwcu i październiku w kolejnych latach), każdorazowo po 10 próbek z wariantu doświadczenia. Otrzymane wyniki opracowano statystycznie, wykorzystując test Fishera-Snedecora dla stwierdzenia istotności działania czynników doświadczenia oraz - w celu porównania otrzymanych różnic - test Tukey'a. Obliczenia przeprowadzono przy użyciu pakietów Statistica i ANALWAR-5.FR. Nie stwierdzono statystycznie udowodnionego wpływu ściółkowania na wybrane cechy wzrostu siewek brzozy brodawkowatej w pierwszym roku. Ściółkowanie istotnie zwiększyło wysokość, średnicę i świeżą masę części nadziemnych dwuletnich siewek. Ściółkowanie wyraźnie dodatnio wpłynęło na liczebność roztoczy (Acari) glebowych oraz różnorodność gatunkową mechowców (Oribatida).

EN

The aim of the study was to determine the influence of mulching with organic matter obtained from the surface of fresh coniferous forest on the growth of seedlings of white birch as well as on the occurrence of soil mites (Acari) under conditions of sprinkler irrigation. Experiment was carried out in 2008-2009 at forest nursery Bielawy near Toruń (Forest District in Dobrzejewice). The experiment was established as the one-factorial trial with four replications. The studied factor was mulching used in September 2008 in two variants: C-control - without mulching, S - mulching. Mulching with litter obtained from fresh coniferous forest was done - after emergence of white birch seedlings - with the dose of 100 m3 ha-1. The whole area was irrigated with the use of sprinklers NAAN 5035. Terms of irrigation and water rates were established according to directives for irrigation in forest nurseries on bare areas. The growth of seedlings was measured in October 2008 and 2009. The height of seedlings (cm), shoot diameter (mm) and the fresh mass of the above ground parts (g) were determined. Soil samples for acarological study were taken four times (in June and October in successive years); ten samples from each variant of the experiment were taken in every time. The data were statistically processed by analysis of variance. Fisher-Snedecor test was used to determine the significance of experimental factors, and Tukey test was used to define significant differences between combinations. Calculations were conducted with the use of programmes Statistica and ANALWAR-5.FR. It was found that the measure of mulching did not influence significantly on the chosen parameters of growth of one-year old seedlings. Mulching significantly increased the height, diameter and the fresh mass of the above-ground parts of two-year old seedlings. Mulching differentiated the density and the species-diversiry of mites, especially the oribatida mites.

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Preliminary study on the effect on pine forest litter inoculum on the plant growth, mycorrhizal status, and the occurrence of mites (Acari) in the root clumps of white birch seedlings

67%

Klimek A. , Rolbiecki S. , Rolbiecki R. , Hilszczanska D. , Kazmierczak A. , Porzych A. , Michalska K. , Szmidla H.

Infrastruktura i Ekologia Terenów Wiejskich

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2015

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nr III/2