Wydanie 271(10) 2009
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Pozycja Open Access Nitrofilne zbiorowiska segetalne i zrębów występujące na terenie byłej Akademii Rolniczej w Szczecinie przy ulicach J. Słowackiego i Papieża Pawła VI(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2009) Kutyna, Ignacy; Nieczkowska, Małgorzata; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w SzczecinieIn the investigated area there are patches of segetal vegetation. They were defined as nitrophilous communities of Stellaria media. Species characteristic of Stellarietea mediae class are found in flower beds and also on the exposed and unsheltered surfaces formed by plant cultivation on these sites. These communities are floristically rich (112 taxa), and Stellaria media (S=V, D=870) is a dominating species. Apart from this nitrophilous taxon in the community structure there is a series of species of Molinio-Arrhenatheretea (26 taxa) and Artemisietea vulgaris (24 taxa). Communities of Stellaria media have the features of segetal plant communities, but its structure shows that they are undergoing a process of conversion leading to ruderal and seminatural communities. In the examined area there is also a floristically rich (102 taxa) complex of Calamagrostietum epigeji, typical of forest felling sites. Aside from a frequently found species of a characteristic complex of Calamagrostis epigejos (S=V, D=542), there are also numerous species of Artemisietea vulgaris (31 taxa) and Molinio- Arrhenatheretea (30 taxa) classes. Sparse species, characteristic of the latter syntaxon (Taraxacum officinale and Potentilla reptans) reach a facial form in some patches. Phytocenoses of Calamagrostietum epigeji complex settle down mainly in compact soils situated on small slopes adjacent to the inner roads of the area. They are also found on pavements and lawns.Pozycja Open Access Zbiorowiska ruderalne występujące na terenie byłej Akademii Rolniczej w Szczecinie przy ulicach J. Słowackiegoi Papieża Pawła VI(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2009) Kutyna, Ignacy; Nieczkowska, Małgorzata; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w SzczecinieRuderal communities were described on the basis of 71 phytosociologic records. In the studied area four kinds of communities were distinguished as complexes of: Artemisio- Tanacetetum vulgaris, Dauco-Picridetum hieracioidis, Echio-Melilotetum and Onopordetum acanthii. Most vegetation patches were classified into the first two complexes. These communities are richest floristically and the number of taxa within their range varies from 107 to 112. The nature of Artemisio-Tanacetetum vulgaris complex is determined by two characteristic species – Tanacetum vulgare (S=V, D=1445) and Artemisia vulgaris (S=V, D=517). Phytocenoses of this complex are mainly found in fallow areas which are an integral part of built-up areas. They settle down mainly in sands underlaid with loam and clays rich in calcium carbonate. They also occur in a built-up area, but species of meadow communities have a considerable contribution to their structure. They appeared in these communities because their reproductive organs were brought with organic soil for the reclamation of destroyed surfaces. This is confirmed by a numerous and frequent and sometimes facial presence of Potentilla reptans (S=V, D=1895). Patches of Dauco-Picridetum hieracioidis complex occur in the fallow area and on individual sites within the built-up areas. A prevailing species is Picris hieracioides (S=V, D=2657). In the fallow area, very warm and exposed to the sun, often defined as an island of heat, thermophilous and xerophilous species characteristic of Echio- Melilotetum complex with a dominating taxon Melilotus alba (S=V, D=2475) are frequently found. Some patches of this complex were classified into a variant of Calamagrostis epigejos. Also under similar ecological conditions, Onopordetum acanthii. complex occurs. In its patches the presence of two characteristic species of Anchusa officinalis (D=775) and Reseda lutea (D=404) is very often (S=V) observed. The patches of Onopordetum acanthii complex are floristically richest and the average number of species in the record is 38 taxa. In these phytocenoses, characteristic species of Onopordetalia acanthii order occur numerously.Pozycja Open Access Zbiorowiska seminaturalne klasy Molinio-Arrhenatheretea (z rzędów Plantaginetalia majoris i Trifolio fragiferae- -Agrostietalia stoloniferae) występujące na terenie byłej Akademii Rolniczej w Szczecinie przy ulicach J. Słowackiego i Papieża Pawła VI(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2009) Kutyna, Ignacy; Nieczkowska, Małgorzata; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w SzczecinieThe order of Plantaginetalia majoris represents 13 patches of vegetation in the examined area. They were classified into the complex of Lolio-Polygonetum arenastri. These phytocentoses occur along roads, paths and pavements and on trodden surfaces. They settle mainly in compact soils of alkaline reaction. In the complex two species Lolium perenne var. humile and Plantago major var. typica dominate. In a part of patches a facial form is reached by: Trifolium repens, Achillea millefolium and Ficaria verna. Within the order of Trifolio fragiferae- -Agrostietalia stoloniferae a community of Potentilla reptans was distinguished. The patches of this phytocenosis are mainly found on warm and exposed to the sun slopes, on thinned out lawns, along paths and roads. The dominating species in the complex is Potentilla reptans (S=V, D=2324), it is accompanied by numerous species of Molinio-Arrhenatheretea class (25 taxa). The largest reciprocal similarity is shown by ruderal communities formed in dry and warm habitats, and a slightly smaller similarity is observed in the case of meadow and bush complexes. The least similar in respect of floristic composition and phytocociological stability of species are complexes of Echio-Melilotetum i Onopordetum acanthii as compared to the communities of the forest variant of Urtico-Aegopodietum podagrariae and Lolio- Polygonetum arenastri.Pozycja Open Access Zbiorowiska seminaturalne z rzędu Arrhenatheretalia klasy Molinio-Arrhenatheretea występujące na terenie byłej Akademii Rolniczej w Szczecinie przy ulicach J. Słowackiego i Papieża Pawła VI(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2009) Kutyna, Ignacy; Nieczkowska, Małgorzata; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w SzczeciniePhytocenoses of Arrhenatheretalia order are representative in the investigated area for 46 vegetation patches classified into the complex of Arrhenatheretum elatioris and into the community of Poa pratensis-Festuca rubra. Arrhenatheretum elatioris complex is most frequently found on warm and dry small slopes situated in different places of the studied area, on moderately compact soils of alkaline reaction. The most species in the complex are representative for Molinio-Arrhenatheretea class (32 taxa), and some of them, Poa pratensis and Festuca rubra, reach a facial form in some vegetation patches. The structure of Arrhenatheretum elatioris complex has a character of a temporary community referring to phytocenoses of Artemisietea vulgaris class, which is represented by 30 taxa, of which Urtica dioica and Chelidonium majus reach a rank of facies in a part of patches. The vegetation patches in which Arrhenatherum elatius occurs were classified into Poa pratensis-Festuca rubra community. It also settles down on exposed to the sun and dry slopes of small hills, but it is also found on flat sheltered areas. Like in the previous complex, in the structure of this community the species characteristic of Molinio-Arrhenatheretea (27 taxa) and Artemisietea vulgaris (24 taxa) class are dominating. The structure of both seminatural communities found mainly in meadow habitats has a temporary character in the investigated area. A considerable number of species from Molinio-Arrhenatheretea class is a result of the activity of human being who introduced into the investigated area organic soils taken from meadows, containing reproductive organs of these species.Pozycja Open Access Zbiorowisko z Betula pendula i Populus tremula w zadrzewieniach śródpolnych zachodniej części Pojezierza Drawskiego(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2009) Młynkowiak, Elżbieta; Kutyna, Ignacy; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w SzczecinieIn the midfield afforestations of western part of Drawskie Lakeland step out the birchpoplar coppices, and in within them phytocenosis with Betula pendula and Populus tremula (Agrostio-Populetum tremulae tipical form and poor form), which was characterized basing on 19 phytosociological records. Betula pendula is a reigning species in community, and Populus tremula codominating. The verruculous birch (Betula pendula) occurs almost exclusively in layer of stand, however the aspen poplar (Populus tremula) is present and numerous in all layers of community. The structure of community builds 129 species, within them the most of forest species from − Querco-Fagetea class (32 taxa). In herbaceous layer predominate species from Molinio-Arrhentheretea class (24 taxa), less species occurs is from Artemisietea vulgaris class (16 taxa). The essential element of community structure is presence of species from Epilobietea angustifolii class (11 taxa). They decide about physiognomy of phytocenosis, because part of them achieves IV and V stability degree and considerable covering (e.g. Betula pendula S=V, D=3803, Populus tremula S=IV, D=763). The considerable variety of species in community results from its openness on penetration of species from different neighbouring habitats. From arable lands penetrate synanthropic species, and from meadows seminatural. Community of Betula pendula and Populus tremula is in phaze of reconstruction process of secondary succession aiming the direction of climax stage achievement - forest phytocenosis.Pozycja Open Access Zespół Urtico-Aegopodietum podagrariae i zbiorowisko z Veronica chamaedrys występujące na terenie byłej Akademii Rolniczej w Szczecinie przy ulicach J. Słowckiego i Papieża Pawła VI(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2009) Kutyna, Ignacy; Nieczkowska, Małgorzata; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w SzczecinieIn the area of the former University of Agriculture situated in Słowackiego and Papieża Pawła VI streets there is a nitrophilous seminatural community of fringe type Urtico- Aegopodietum podagrariae, internally differentiated into a typical variant and a forest variant. The typical variant of community is constituted by patches situated on surfaces shadowed by the forest stand and shrubs occurring along Słowackiego Street. A series of species of forest communities can be found in them, but most often and most numerous, frequently in a facial form, Ficaria verna and Corydalis solida are found, more rarely – Adoxa moschatellina, Anemone nemorosa and Gagea lutea. Both in the typical variant and in the forest one, the characteristic species Aegopodium podagraria is dominating (S=V and in both variants it reaches D=2514 and 1895, respectively) and it is accompanied by Urtica dioica (S respectively=V and II and D=2168 and 466). The typical variant occurs most frequently in narrow streets in the neighbourhood of buildings and also along the paths and inner roads of the area. Similar habitats are settled by Veronica chamaedrys, which most often is found on surfaces exposed to the sun, on slopes, along paths and on lawns. It is a prevailing species in these patches (S=V, D=1025).