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EN
Conservation in situ is, for many reasons, the most important means of maintaining gene resources of wild plants. Forms of this conservation must be constantly improved and increasingly more diversified, and their effectiveness carefully supervised. The authors discuss the problem of the conservation object and aim, criteria and strategy of choise, scope of plant diversity, which should be encompassed by conservation measures, and against this background they evaluate the role of nature reserves in protection of gene resources.
EN
In the very middle of Poland the erection of a big quarry of brown coal is begun as well as great power station which will strongly affect environment of the region covering 20 000 km!. The biological investigations carried out in the years 1948/1980, i.e. the quarry was started, are summarized. The authors propose a new program of investigations and suggest that the region may be a suitable object for further ecological studies on biota and ecosystems, influenced with industrial pressure.
EN
The role of vegetation in recreative environment is discussed as well as a value of ecological data applied in spatial planning. Only phytosociological maps — real and potential vegetation maps — may be the sources of objective ecological information about vegetation as well as environment diversity. The next functions of vegetation are distinguished: bioindicatoric, biotope-forming, physiological, psychologic, organizational and hobbystic.
EN
The analysis of results of geobotanical research which had been executed by different authors in different parts of Poland has proved conformity in estimation of recreation areas, and in formation of their management rules. Objectivism of these researches and also their usefulness in spatial planning confirm it. The m ps of real and potential vegetation should be a basic source of information for spatial planning from a single object up to scale of region.
EN
In the area of Central Poland about 35 new nature reserves are projected to be from. A mong them forest reserves take the first place. They are ment to protect natural phytocoenosis of forest which are typical for this area. Also formation of few peatbog-, floristic-, and landscape- reserves is of great importance. An enlargement of the area of four already exsisting reserves is also expected.
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EN
Arboreta, botanic gardens, palm houses as well old ornamental gardens and parks are as yet not full utilized aims of tourist trips. The author discusses its role in popularization of natural history and art, and its usefulness for people recreation.
EN
The paper presents a list, distribution, and geographical analysis of 83 taxa of terrestrial lichens to be found in the Załęcze Nature Park, in the North-Eastern part of the Wieluń Upland tract. In field surveys there was used a method of a grid map (see: Fig. 1), while in desk studies the method of: cartograms (Tables I-V), isonomes (Fig. 2-5) and a comparative method. It is interesting to note the presence of a representative group of calciphilous, montane, upland-montane, and upland taxa confirming the fact that the Załęcze Nature Park belongs to the calcareous plateau of the Silesian- Wieluń Uplands (for summary see page 340-341).
EN
The object of analysisis vascular floralisted in the work of Fagasiewicz, Czyżewska and Olaczek (1986). It has been compared with two local floras in Cracow-Wieluń Jura: Ojców National Park and the Break of the Warta River near Częstochowa. Frequency of appearance of each taxa was estimatd; the flora was divided into syntaxonomical groups; and there was determined participation of these groups and mutual relations on each of 177 localities - squares with an area of 1 km². This provided a basis for study of plant communities, associations or their fragments, which have not been listed in phytosociological works so far. There was also assessed the indicator of flora synanthropization (S) and modernization (M) degree for the entire area and for particular localities. Moreover, the concept of an index of archaeophytezation (A) and an index of synanthropization (kS) were introduced (for summary see: page 312-313).
EN
The floristic-phytosodological and ecological differentiation of agrophytocoenoses of the Bełchatów Mining Energetic District were presented. The expected directions of changes of field phytocoenoses, of this region wire pointed out and factors responsible for this process were determined. It was assumed that these processes are going to cause impoverishment of segetal plants and contribute to origination of simpler systems, less stable and less resistant to anthropopression.
EN
The paper it a continuation of a sequence of materials concerning the Boraginaceae family, published in part XI (Fagasiewicz 1987). Apart from Myosotis patusiris (L.) Nathorst it includes the herbal material of genus Myosotis L. from the Herbarium Universitatis Lodziensis. They are the following species: Myosotis arvensis, L.) Hill., M. caespitosa Schultz, M. discolor Pers. (M. versicolor (Pen.) Sm.), M. ramosissima Rochel (M. collina auct. piur.), M. sparsiflora Mik., M. stricta Link ex R. et Sch. (M. micrantha Pall.) and M. sylvatica (Ehrh.) Hoflrc. The changes of indications during a revision were marked with* after the name of a herbalist.
EN
The paper presents the new stands of 68 rare and interesting species of vascular plants. The floristic records come from the Ravka valley and forest complexes of Puszcza Bolimowska.
EN
Climatic and bioclimatic conditions of Załęcze Nature Park Area are discussed. The author tryes to distinguish the zones according to the local climates using the quality bioclimatic criteria. All meteorological and climatic data are given in the tables I-XV (for summary see page 201).
EN
Sessile algae were collected from lower sections of therivers: Rakówka, Pilsia, Krasawa, Grabi a and Nieciecz. The investigated rivers lie with in a cone of depression formed due to the construction of the lignite open mine Bełchatów. Quantitative and qualitative composition of algal communities was determined in the samples. In total, 417 taxa of algae and 3 taxa of bacteria were recorded - among them: 153 taxa from the Rakówka River, 211 taxa from the Pilsia River, 222 taxa from the Krasawa River, 220 taxa from the Grabia River, and 234 taxa from the Nieciecz River.
EN
The study contains materials on the family Umbelliferae and is a continuation of Part X (Fagasiewicz 1984). It comprises all herbal sheets collected during the recent decade and other formerly omitted ones. The study also takes into account the genus Anthriscus. All corrections of identifications are marked with the + sign. A revision of materials proved that Anthriscus nitida, unnoticed in Conspcctus florae Lodziensis, Part I, is a species frequently recorded in the forests that surround Łódź.
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