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Wyszukujesz frazę "habitat condition" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
"Ancient forest" plant species as ecological indicators of woodland condition in parks and their implications for park restoration
Gatunki roślin "starych lasów" jako ekologiczne wskaźniki stanu zadrzewień parkowych i ich zastosowanie w rewaloryzacji parków
Autorzy:
Szwed, W.
Sikorski, P.
Rodziewicz, A.
Sikorska, D.
Wierzba, M.
Powiązania:
https://bibliotekanauki.pl/articles/888608.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Dendrologiczne
Tematy:
ancient forest
ancient woodland indicator species
forest
habitat type
old woodland
park
park restoration
plant association
plant species
woodland
woodland condition
ecological indicator
Opis:
Presence of plant species, associated with ancient forests (continuous existence >200 years) can be used for assessing woodland biodiversity. The aim of this study is to specify which plant species, included in the ancient forests plant species list, can indicate old woodlands in parks and what plant features are characteristic for certain habitat types. Richest in ancient forest plant species are those fragments of woodlands, which have existed continuously for at least 120 years, and their fragments suffered least from human pressure during that time, whereas recent woodlands are characterized by a small share of ancient forest indicator species and domination of nitrophilous species. Investigated plants usually propagate vegetatively, their seeds are of a small size and they have regularly, densely set leaves. Plants associated with ancient woodlands are good indicators of woodland continuity in parks so they can be used for age assessment in these areas. Accumulation of such plants can be a useful criterion in parks evaluation. Proposed idea of sustainable management of a park space, including selection of areas of a great ecological value, can be a chance to preserve woodland biodiversity.
Źródło:
Rocznik Polskiego Towarzystwa Dendrologicznego; 2009, 57
2080-4164
2300-8326
Pojawia się w:
Rocznik Polskiego Towarzystwa Dendrologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of street conditions, including saline aerosol, on growth of the Small-leaved limes
Wpływ warunków przyulicznych, w tym aerozolu solnego, na wzrost lip drobnolistnych
Autorzy:
Borowski, J.
Pstragowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/888469.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Dendrologiczne
Tematy:
Small-leaved lime
Tilia cordata
environment pollution
lime
plant growth
saline aerosol
salinity stress
street condition
street habitat
street tree
tree size
urban tree
Opis:
There is increasing number of trees dying in large urban agglomerations. The problem is mostly pronounced in the case of street trees. In Polish cities, apart of pollutions generated by traffic, an important factor that causes death of trees is high salt concentration as a result of winter salt application for de-icing of streets. The aim of the study was to assess the growth of limes (Tilia cordata) planted along highly trafficked Warsaw street and exposed, among others, to salt in a form of saline aerosol. The assessment of shoot length, tree height and crown volume, based on the photographic method of the three increment assessments, showed very restrained growth of the studied limes. In the years 2006-2008 the trees performed so poorly as in similar period of 2003-2005 and grew worse than limes form natural habitats. In 2009 we even observed decrease in size of street trees as compared to 2008 which suggests both very bad condition of street habitats and the studied trees. Salt concentration measured on the surface of tree buds and shoots (EC) was higher in street trees than in trees from natural habitats, which indicates that saline aerosol is the source of sodium chloride. We observed highly diversified reactions of individual trees to the whole complex of street conditions. It is therefore recommended to select for propagation individuals from among most tolerant and vigorously growing plants (genotypes) to be used in street planting.
Źródło:
Rocznik Polskiego Towarzystwa Dendrologicznego; 2010, 58
2080-4164
2300-8326
Pojawia się w:
Rocznik Polskiego Towarzystwa Dendrologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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