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Wyszukujesz frazę "raised" wg kryterium: Wszystkie pola


Wyświetlanie 1-3 z 3
Tytuł:
Role of land relief and structure in the formation of peat bogs in mountain areas, as exemplified by the Polish Carpathians
Autorzy:
Łajczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/294695.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
raised bog
Carpathian Mountains
Beskidy Mountains
Tatra Mts.
Orawsko-Nowotarska Basin
Opis:
It has been often argued that the formation of peat bogs in the mountains is predominantly influenced by a humid climate. Although in many mountains precipitation during the vegetation growth season is greater than evaporation, bogs, especially of the raised type, do not cover all gently sloping areas and often develop only within certain landforms. Local hydrological conditions determined by land relief and structure are the most crucial factor in the development of bogs in such areas. Peat bogs of the Polish Carpathian Mountains demonstrate that bogs, irrespective of altitude, develop mainly in concave landforms or below convex morphological recesses, where outcrops of poorly permeable rocks offer numerous low-capacity but stable outflows of groundwater that continuously humidifies the slopes lying below thus supporting the formation of habitats for hydrophilic plants. This research project covered the parts of the Polish Carpathians having the largest number of bogs, thus allowing local-scale analysis of their location in relation to the lithological, geomorphological and hydrogeological properties of the substratum. It is assumed that an assessment of the influence of substratum on the location and formation of peat bogs is only correct when the coverage of the individual mires in the period preceding their anthropogenic degradation is known. Only then is it possible to establish what types of bedrock and which landforms are most favourable for bog formation.
Źródło:
Landform Analysis; 2013, 22; 61-73
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki rozwoju i rozmieszczenie torfowisk w Kotlinie Orawsko-Nowotarskiej
Development conditions and distribution of peat bogs in the Orava-Nowy Targ Basin
Autorzy:
Łajczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/2074702.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Kotlina Orawsko-Nowotarska
Karpaty Zachodnie
torfowiska niskie
torfowiska wysokie
wypływy wód gruntowych
Orava-Nowy Targ Basin
Western Carpathians
low peat bogs
raised peat bogs
shallow groundwater circulation
Opis:
The Orava-Nowy Targ Basin is the only intramontane basin in the Carpathian Mountains, where numerous low and raised peat bogs developed in the Holocene. The peat bogs were originally comprising about 40% of the basin area. to became confined to 12%, in result of several centuries of exploitation of peat. On the basis of investigations on geomorphological location of the preserved relics of peat bogs, and reconstructions of their original extent, an attempt was made to identify natural environment factors which had the biggest influence on development of peat-forming process within the Orava-Nowy Targ Basin. The most important of these factors were found to be landforms of fluvioglacial and fluvial accumulation and their composition, as well climatic conditions. However, it should be stated that distribution of raised peat bogs appears to be mainly controlled by the mode of circulation of shallow groundwaters and location of their stable outflows. This is an aspect of development of peat bogs that has not been studied up to now.
Źródło:
Przegląd Geologiczny; 2009, 57, 8; 694-694
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reduction of the extent of peat deposits and their water retention capacity in the Orava-Nowy Targ Basin and Bieszczady Mts. due to human activity
Autorzy:
Łajczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/2075088.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
anthropopression
raised bog
peat dome
post-peat area
peat extraction
reclamation works
shallow groundwater
Orava-Nowy Targ Basin
Bieszczady Mts.
antropopresja
wysokie torfowisko
kopuła torfowa
młodsze potorfie
wydobycie torfu
prace rekultywacyjne
płytkie wody podziemne
Kotlina Orawsko-Nowotarska
Bieszczady
Opis:
The paper deals with the problem of anthropogenic changes in the extent of peat deposits, their volume and water retention capacity of raised and valley peat bogs in the Polish part of the Orava-Nowy Targ Basin and the Bieszczady Mts. This problem has not received a great deal of attention in the research literature. Special attention was paid to the remnants of peat domes and post-peat areas. The decrease in the area of peat bogs, the volume of peat deposit and the quantity of water retained within them were estimated for the last ca. 400 years. This paper is based on an analysis of maps produced over the last 230 years as well as aerial photographs. Field data and laboratory data were also analyzed as part of this research.
Źródło:
Przegląd Geologiczny; 2013, 61, 9; 532--540
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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