Pflanzengesellschaften an schattigen felse en westkarpaten

Jurko, Anton

doi:10.1007/bf00298832

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…In central Europe there have been several studies of bryophyte vegetation on treeless cliffs (Jurko & Peciar, 1963;Zittová -Kurková , 1984) or talus slopes (Lü th, 1990;Halfmann 1991;Hachtel, Weddeling & Mö seler, 1999;Weddeling & Hachtel, 2000;Kubešová , 2000;Němcová, 2001), most of them focusing on description of local vegetation differentiation or vegetation-environment relationships, but rarely concerned with diversity patterns.…”

Section: Introductionmentioning

confidence: 99%

Diversity of bryophytes on treeless cliffs and talus slopes in a forested central European landscape

Kubešová¹,

Chytrý²

2005

Journal of Bryology

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The bryophyte flora and its environmental correlates were studied on 28 treeless cliffs and 18 treeless talus slopes in forested river valleys of the southern Czech Republic. The diversity of bryophyte assemblages was assessed through species richness and spectra of distribution-range types, growth forms and life strategies, using analysis of covariance. Species richness of cliffs increased with their area but this was not the case for talus slopes, where a high microtopographic heterogeneity appeared to be the key factor governing diversity. No habitat island effects were detected for cliffs; there were no differences between isolated cliffs and cliffs found in the neighbourhood of other cliffs or talus slopes. Island effects were not studied for talus slopes as they were nearly always found in clusters with cliffs and other talus slopes. Talus slopes were characterized by a strong effect of the ecotone between forest and open talus, with ecotonal vegetation being more diverse than the central part of talus slopes. However, no ecotone effect was found on cliffs. The effect of potential irradiation, used as a proxy for moisture availability, was weak on cliffs but strong on talus slopes where more insolated slopes had lower diversity, more temperate and fewer boreal species, a predominance of short turf or cushion-like mosses over large bryophytes and a higher proportion of the colonist strategy, as opposed to perennial stayers and long-lived shuttle species. On cliffs, base-rich rocks had higher total species richness but a lower proportion of hepatics, fewer suboceanic and more submediterranean species, and more small turf or cushion-like mosses. The effect of base status was not assessed for talus slopes as they were all formed from acidic rocks. These results demonstrate that cliffs and talus slopes in the same area are quite different habitats and each is characterized by distinctive environmental conditions.

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Section: Introductionmentioning

confidence: 99%

Diversity of bryophytes on treeless cliffs and talus slopes in a forested central European landscape

Kubešová¹,

Chytrý²

2005

Journal of Bryology

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“…1). Рисунок 1 -Изменение площади сельскохозяйственных земель [6] Для оценки степени преобразованности региональных территорий с преобладанием земель сельскохозяйственного назначения, наряду с широко применяемыми исследованиями структуры земельного фонда [9][10][11][12][13][14][15][16], целесообразно также производить учет таких показателей, как:…”

Section: оренбургская область относится к регионамunclassified

Peculiarities of optimal structure of Orenburg Region agrolandscapes

Evstifeeva

Glukhovskaya

2017

Samara Journal of Science

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In this article the examines the degree of change of regional territories is examined with predominance of earth of the agricultural setting. In the Orenburg Region where in a number of administrative regions more than one third of the territory is plowed, necessity such the researches obvious. The analysis of the distribution of the land fund by category is carried out. Time changes in all land categories were studied, and the level of anthropogenic transformation was determined by the coefficient of land use, the coefficient that takes into account the intensity of agricultural land use and the coefficient of plowing of agricultural lands. A number of disproportions are formed in accordance with the maximum possible and optimal environmental parameters: a large agro-land plot (88,5%, with a norm for steppe zones of 60-65% and an optimal 40%), a lot of arable land (more than 50%, 40-45%), an extremely low proportion of forest land (5,16% in 10-15% and the optimal value of 15-20%), as well as a general lack of natural lands (OOP 0,19-0,64%). Undertaken studies testify to intensive development of agrolandscapes on territory of area, and necessity of artificial maintenance of the equilibrium state of agroecosystems, that can be arrived at only by totality of reclamative, agronomical and ecological events.

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Conspectus of classes of European vegetation

Mucina

1997

Folia Geobot. Phytotax.

158

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Pflanzengesellschaften an schattigen felse en westkarpaten

Cited by 6 publications

References 2 publications

Diversity of bryophytes on treeless cliffs and talus slopes in a forested central European landscape

Diversity of bryophytes on treeless cliffs and talus slopes in a forested central European landscape

Peculiarities of optimal structure of Orenburg Region agrolandscapes

Conspectus of classes of European vegetation

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