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Tytuł:
Responses of Antarctic tundra ecosystem to climate change and human activity
Autorzy:
Olech, M.
Powiązania:
https://bibliotekanauki.pl/articles/11977.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
tundra ecosystem
climate change
human activity
biodiversity
colonization
alien species
tundra
plant community
lichen
bryophyte
alga
fungi
vascular plant
grass
plant species
Opis:
Over the last couple of years the Antarctic Peninsula region has been one of the fastest warming regions on the Earth. Rapidly proceeding deglaciation uncovers new areas for colonisation and formation of Antarctic tundra communities. The most evident dynamics, i.e. changes in both biodiversity and structure of tundra communities, are observed in the forefields of retreating glaciers. This paper presents examples of changes in biodiversity and in the direction and rate of succession changes taking place due to climate warming compounded by synanthropization in the maritime Antarctic.
Źródło:
Papers on Global Change; 2010, 17
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Macrofungi of raised and transitional bogs of Pomerania
Autorzy:
Stasinska, M.
Powiązania:
https://bibliotekanauki.pl/articles/54912.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
macromycete
mycology
plant community
plant species
peatland
species richness
species diversity
bog
raised bog
transitional peat bog
Pomeranian region
environment condition
distribution
mire
Polska
phytocoenosis
macrofungi
species list
map
Opis:
The mycology of peatlands, with their specific plant communities and numerous rare plant species, has been underexplored and is poorly recognized. The main objectives of this study were to identify the species richness and diversity of macromycetes in raised and transitional bogs of Pomerania and to establish correlations between macroscopic fungi and peatland communities occurring in the area in view of environmental conditions. Investigations spanning a period of ten years were conducted at 134 sites (71 raised and 63 transitional bogs) in eight non-forest peatland communities (Caricetum lasiocarpae, Caricetum limosae, Caricetum rostratae, Eriophoro angustifolii-Sphagnetum recurvi, Rhynchosporetum albae, Erico-Sphagnetum medii, Sphagnetum magellanici, and the Eriophorum vaginatum-Sphagnum fallax community) and two forest communities (Vaccinio uliginosi-Pinetum and Vaccinio uliginosi-Betuletum pubescentis) in which 108 permanent observation plots were established for detailed examinations. A total of 191 macromycete species were recorded in the peatlands. The smallest number of species was recorded in Rhynchosporetum albae (12 species) and Caricetum rostratae (15 species). Phytocoenoses richest in fungi were Vaccinio uliginosi-Pinetum (102 species) and Vaccinio uliginosi-Betuletum pubescentis (121 species). The number of macromycete species recorded in individual peatland communities depends on the community type and is not conditioned by the number of observations and the number and the total area of permanent plots. Five mycosociologico-ecological groups of macroscopic fungi were distinguished based on numerical analyses. Four groups comprise species of fungi associated with a specific phytocoenosis or a group of phytocoenoses. One group consists of fungi with a broader ecological scale. The majority of environmental variables representing the substrate’s chemical properties, humidity and pH show a statistically significant influence on the diversity of macroscopic fungi species in the peatland communities. Cartogram maps of the distribution of 21 species of peatland fungi are included and geographico-ecological features of the species are briefly described.
Źródło:
Monographiae Botanicae; 2011, 101
0077-0655
2392-2923
Pojawia się w:
Monographiae Botanicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plant communities in arable fields of the Skierbieszow Landscape Park
Zbiorowiska roślinne pól uprawnych Skierbieszowskiego Parku Krajobrazowego
Autorzy:
Zieminska-Smyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/27321.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
plant community
arable field
Skierbieszow Landscape Park
segetal plant
species richness
Opis:
Floristic research on segetal communities was carried out in 2000 on arable fields in the Skierbieszów Landscape Park and its protected zone. Three communities of segetal weeds in cereal crops, and two communities of segetal weeds in root crops were separated in the arable fields of the Skierbieszów Landscape Park. The community Vicietum tetraspermae typicum commonly occurred in cereal crops on brown soils developed from loess soils. The community Echinochloo-Setarietum, which belongs to root crops, was noted in the same habitat. The greatest richness of species was found in Consolido-Brometum and Lamio Veronicetum politae, with the average of 25 species in one record. Both communities were abundant in rare segetal species which are considered to be endangered in our country: Adonis aestivalis, Euphorbia exigua, Lathyrus tuberosus, Muscari comosum, Thlaspi perfoliatum, Veronica polita, Agrostemma githago.
Badania florystyczne nad zbiorowiskami segetalnymi przeprowadzono w roku 2000 na polach uprawnych Skierbieszowskiego Parku Krajobrazowego. Na polach uprawnych Skierbieszowskiego Parku Krajobrazowego wyodrębniono 3 zespoły chwastów segetalnych w zbożach i 2 zespoły upraw okopowych. Na glebach brunatnych wytworzonych z lessów w zbożach występował powszechnie zespół Vicietum tetraspermae typicum. W tych samych warunkach siedliskowych wyróżniono w uprawach okopowych zespół Echinochloo-Setarietum. Największym bogactwem gatunkowym charakteryzowały się Consolido-Brometum oraz Lamio-Veronicetum politae, liczące średnio po około 25 gatunków w jednym zdjęciu. Fitocenozy te zajmowały niewielkie powierzchnie gleb rędzinowych badanego obszaru. Obydwa zespoły obfitowały w rzadkie gatunki segetalne, uważane za zagrożone w naszym kraju takie jak: Adonis aestivalis, Euphorbia exigua, Lathyrus tuberosus, Muscari comosum, Thlaspi perfoliatum, Veronica polita, Agrostemma githago.
Źródło:
Acta Agrobotanica; 2009, 62, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Species diversity of segetal plant communities in the Early Neolithic settlement area of the Sleza Landscape Park
Autorzy:
Aniol-Kwiatkowska, J
Kacki, Z.
Powiązania:
https://bibliotekanauki.pl/articles/58872.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
species diversity
segetal plant
plant community
Early Neolithic
settlement area
Slezanski Landscape Park
flora
weed
endangered species
Opis:
The paper contains results of investigations carried out in crop fields within the protected area, which is an important refuge of species diversity in grounds dominated by large-area farms. The segetal vegetation is represented by 13 plant communities, the development of which is influenced by various tillage manipulations. As a result, the segetal flora of the Ślęża Landscape Park is heavily threatened and the structure and species richness of phytocoenoses are distinctly transformed. This is reflected in the frequency of weed occurrence in crops (i.e. there is a small group of common species and a very numerous group of species with 1 or 2 localities), as well as in values of biocoenotic indicators, e.g. the values of diversity indicator H vary between 1 and 3.5. An analysis of archaeophytes participation (frequency and numbers) in ATPOL squares indicates their significant connection with archaeological sites of the Neolithic settlement. Particular adherence to the early Neolithic settlement areas shows a group of species from the Caucalidion alliance. The richness and diversity of the Park vegetation, conditioned by many hundreds of years of agriculture, are now strongly transformed and have become impoverished. Establishing the Landscape Park, in order to preserve the natural-landscape character of the environment and its cultural and historical values, does not ensure the protection of both the species and the phytocoenotic diversity of this area.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 257-262
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecology of rare water plant communities in lakes of north-eastern Poland
Autorzy:
Jablonska, E.
Klosowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/57433.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
ecology
rare species
plant community
lake
Polska
aquatic plant
phytocoenosis
water property
substrate property
comparative analysis
Opis:
Habitat studies were conducted on three rare plant communities dominated by Nuphar pumila, Nymphaea candida and Hydrilla verticillata in lakes of north-eastern Poland. The comparison of habitat properties of these three types of phytocoenoses with those of Nuphar lutea common in the area under study was also performed. It was demonstrated that the plant communities studied were ecologically distinct. The habitats of the phytocoenoses of N. pumila differed most significantly from those of the other phytocoenoses. They often inhabited softer waters poor in Mg2+, dissolved SiO2, but rich in total Fe, PO43−, NO3−, and were associated with acidic substrates containing lower levels of Ca2+ and Na+, but greater amounts of total Fe and NO3−. The differences in the habitats of H. verticillata and N. candida phytocoenoses were most pronounced in the case of four properties of water: Na+, K+, Cl−, and Mg+. Their values were lower in waters of the H. verticillata phytocoenoses. The habitats of all the three types of rare phytocoenoses differed considerably from those of N. lutea. The most significant differences were found between the N. lutea and N. pumila phytocoenoses and the smallest differences were between the patches of N. lutea and N. candida. The properties of water were more important in differentiating the habitats of the phytocoenoses studied than the substrate properties. Due to alkalization and increase in water hardness in the lakes studied the stands of N. pumila are among the most threatened. The patches of N. candida and H. verticillata, which occur in waters with a wider range of hardness and tolerating a slight increase in trophy, can still continue to persist in the lakes for a long time.
Źródło:
Acta Societatis Botanicorum Poloniae; 2012, 81, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stubble field plant communities of the Mazowiecki Landscape Park
Zbiorowiska roślinne ściernisk Mazowieckiego Parku Krajobrazowego
Autorzy:
Skrajna, T.
Lugowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/28114.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
stubble field
plant community
Mazowiecki Landscape Park
weed community
phytosociology
plant association
plant community list
species composition
Opis:
The characteristics of communities found in unploughed stubble fields of the Mazowiecki Landscape Park and its agricultural buffer zone are presented in the paper. The association Echinochloo-Setarietum divided into a typical variant, the variant with Galinsoga parviflora, and the variant with Bidens tripartite, was the most frequently noted and floristically differentiated association. Patches of Digitarietum ischaemi were also frequently observed in stubble fields on the poorest habitats. Rarely, on fertile soils, small patches of floristically rich communities with Veronica agrestis were recorded. Periodically, excessively wet habitats were seldom occupied by the speciesrichest phytocoenoses of Centunculo-Anthoceretum punctati. Single patches of the community with Setaria pumila, the form with Aphanes arvensis, were observed only in the south-eastern part of the Park.
Źródło:
Acta Agrobotanica; 2010, 63, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of Azolla filiculoides Lam. [Azollaceae] in Poland
Autorzy:
Szczesniak, E
Blachuta, J.
Krukowski, M.
Picinska-Faltynowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/58747.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Azollaceae
Polska
water fern
plant community
invasive species
fern
Azolla filiculoides
distribution
Opis:
Azolla filiculoides has been an ephemeral plant in Poland since the end of the 20th century. In the last 15 years this species appeared in 5 locations in south-west Poland. Habitat and plants of two populations became destroyed, three other still exist. A. filiculoides occurs in eutrophic or even polluted water where it forms dense mats, up to 10 cm thick. It stays sterile and propagates only in a vegetative manner. Frost resistance of Lower Silesia populations is higher than reported so far; fern may winter and rebuild the population after frost reaching 22oC. Size of the populations is changeable during the vegetation season. A. filiculoides occurs in water habitats and plant communities in which it substitutes Lemna minor.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 3; 241-246
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diversity of Vegetation Dominated by Selected Grass Species on Coal-Mine Spoil Heaps in Terms of Reclamation of Post-Industrial Areas
Autorzy:
Błońska, Agnieszka
Kompała-Bąba, Agnieszka
Sierka, Edyta
Bierza, Wojciech
Magurno, Franco
Besenyei, Lynn
Ryś, Karolina
Woźniak, Gabriela
Powiązania:
https://bibliotekanauki.pl/articles/124434.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
grass species
dominants
diversity
biomass
coal-mine spoil heaps
plant community
reclamation
Opis:
Grasses have a considerable potential for the adaptation to various, often extreme, habitat conditions. The aim of the work was to present the vegetation diversity of the coal-mine spoil heaps with the dominant share of grasses and to identify the main factors responsible for this diversity in the aspect of post-industrial land reclamation. The communities differ in reference to the species preferences to light, moisture, soil fertility and reaction, which is reflected in the wide variety of microhabitats in the area. It was shown that the increase in the abundance of certain grass species, including Calamagrostis epigejos, Festuca rubra, Festuca arundinacea, Phragmites australis, has a significant negative impact on the species richness, species diversity and the uniformity of distribution of species of the plant community. Preliminary analyses revealed that on post-mining waste, the biomass production of the dominant species is negatively correlated with biodiversity. The knowledge about the biology and ecology of grass species, as well as on the assembly rules may be used in the reclamation of degraded areas. Gaining the knowledge about the vegetation diversity of the coal-mine spoil heaps with the dominant share of grasses can be useful in planning the reclamation works, taking into account natural processes, which leads to the creation of a permanent vegetation cover at a given site, protecting it against water or wind erosion. In the future these areas may provide a number of important ecosystem services.
Źródło:
Journal of Ecological Engineering; 2019, 20, 2; 209-217
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plant cover of the Szum River valley [Roztocze, South-East Poland]
Autorzy:
Czarnecka, B
Powiązania:
https://bibliotekanauki.pl/articles/57610.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
river valley
ecological condition
Polska
vascular flora
plant community
protected species
nature conservation
plant cover
threatened species
Roztocze macroregion
geobotanical cartography
botany
Szum River
Opis:
The break section of the Szum river and the mouth part of its left tributary, Miedzianka (Roztocze, SE Poland) were the object of the research conducted in the years 1999-2001. The aim of the study was to establish the abiotic conditions of the diversity of vegetation and the richness of vascular flora in a small lowland river valley. A real vegetation map was drawn in the scale 1:5000. The syntaxonomic classification of plant communities and habitat trophism were established on the basis of 120 phytosociological relevés and 160 soil samples, respectively. On the area of barely 35.4 ha identified were 48 plant associations and communities representing 11 phytosociological classes, among them habitats protected in Poland (16 types) and important at the EU scale (3). There were found 378 species of 72 families, including: 21 species under strict protection, 9 under partial protection, 25 plants threatened on the regional scale, and 2 included into the Polish Red Data Book. Most of interesting species and non-forest communities occur in the parts of the valley above and below a landscape reserve 'Szum', established in 1958, covering presently 18.17 ha. The greatest floral richness was found in the peatbog-meadow complexes (Phragmitetea, Molinio-Arrhenatheretea, Scheuchzerio-Caricetea), in bog-alder forests and willow bushes (Alnetea glutinosae), and streamline ash-alder carrs (Querco-Fagetea, Alno-Ulmion), while the smallest - in the pine and poorer upland mixed fir forests (Vaccinio-Piceetea). Vascular flora appears to be the richest in the sections of the valley where the bottom is overgrown by non-forest communities. The results of the study indicate that it is necessary to enlarge the area of the existing nature reserve.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The small-scale species mobility in calcareous grasslands - example from Southern Poland
Autorzy:
Baba, W
Powiązania:
https://bibliotekanauki.pl/articles/56557.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
small-scale species
Polska
calcareous grassland
plant community
carousel model
community dynamics
Opis:
In this paper I use the different measures of species mobility to describe the fine small-scale dynamics of calcareous grassland built mainly by perennial species and developed in the highly heterogeneous habitat of calcareous rocks. The community showed the low dynamics on a plot-scale (100 m2) and a high one on the scale of 1 m2. However, the studied species differed greatly in calculated indices: turnover rate, (T; 6-64), residence time (RT; 0.5-21.8 y) and carousel time (CT; 4-420 y) as well as the observed tendency to persistence on the spots (PERSIST) and their re-colonisation (AGAIN). This allowed to distinguish the three groups of species: (1) "core species" characterized by high frequency and low T and high CT and RT values, which determine the low dynamics of a community on the plot scale, (2) species with intermediate mobility rate and (3) the group with high mobility rate. The observed cumulative frequencies of all the studied species (CFobs) were much lower than expected under the random re-assignation model (CFRR). Moreover, they were also lower than those predicted by random immigration model (CFRI). The results showed that the "complex carousel" model rather than "single carousel" one explained better the small-scale dynamics of calcareous grasslands.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isoenzyme markers of two hepatic species: Barbilophozia lycopodioides [Wallr.] Loeske, and B. hatcheri [A. Evans] Loeske
Autorzy:
Baczkiewicz, A
Buczkowska, K.
Lembicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/57952.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Tatras Mountains
Polska
Barbilophozia hatcheri
plant community
Barbilophozia lycopodioides
isoenzyme marker
population
hepatic species
Opis:
Two closely related species of the genus Barbilophozia: B. lycopodioides and B. hatcheri were studied in populations from the Tatra Range (S Poland), where they are frequent and widely distributed. Both species play an important role in plant communities and grow here very often side by side. Typically developed plants are quite easy to distinguish (even in the field), however morphologically intermediate forms, difficult to recognize by using of classical taxonomic methods, sometimes are found. We found enzymatic markers, that allow to recognize the critical forms. Both studied species are different in enzymatic patterns of glutamate oxaloacetate transaminase (GOT) and peroxidases (PX). In GOT four different phenotypes were detected. The first two (GOT 1 and GOT 2) were characteristic for B. hatcheri and next two (GOT 3 and GOT 4) for B. lycopodioides. Peroxidase patterns, that were monomorphic and specific for each species, exhibit different mobility in anodal and cathodal parts of gel. Results of the studies allowed us to draw the conclusion, that PX and GOT are good isoenzymatic markers and they can have practical application for identification of Barbilophozia species.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Walory przyrodniczo-użytkowe łąk doliny Środkowej Mogilnicy
Natural and uselfulnes values of meadows of the middle section of the Mogilnica River valley
Autorzy:
Kryszak, A.
Kryszak, J.
Klarzynska, A.
Powiązania:
https://bibliotekanauki.pl/articles/46842.pdf
Data publikacji:
2007
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
dolina Srodkowej Mogilnicy
laki
roslinnosc lakowa
roznorodnosc gatunkowa
synantropizacja roslin
walory przyrodnicze
walory uzytkowe
zbiorowiska lakowe
zbiorowiska roslinne
zespoly roslinne
Mogilnica valley
meadow
meadow community
meadow plant
natural value
performance value
plant community
plant synanthropization
species diversity
Opis:
W dolinie Środkowej Mogilnicy oceniano walory przyrodnicze zbiorowisk łąkowych na podstawie liczby gatunków, wskaźnika różnorodności florystycznej Shannona-Wienera (H’) i metody waloryzacji Oświta oraz ich wartość gospodarczą i użytkową (LWU). Określono ponadto warunki siedliskowe wyróżnionych zbiorowisk: uwilgotnienie (F), odczyn gleby (R) oraz jej zasobność w azot (N), z zastosowaniem liczb wskaźnikowych Ellenberga. Walory przyrodnicze i użytkowe wyróżnionych zbiorowisk zależą od usytuowania w dolinie. Zbiorowiska położone najbliżej rzeki, zaklasyfikowane do klasy Phragmitetea, wykształcone są w formie typowej i przedstawiają duże oraz umiarkowanie duże walory przyrodnicze (od V do VII klasy waloryzacji), jednakże ich ruń ma najczęściej niską wartość użytkową (LWU od 1,63 do 6,90). Aktualnie użytkowane zbiorowiska klasy Molinio-Arrhenatheretea przedstawiają umiarkowane walory przyrodnicze (III i IV klasa waloryzacji). Z łąk tych uzyskuje się wysokie plony I pokosu (4,4 do 5,7 t s.m.· ha-1) o dobrej wartości użytkowej (LWU od 7,37 do 7,56).
Natural importance and economical and usefulness values (FVS) of meadows situated in the valley of the central Mogilnica River were assessed. The natural value was determined on the basis of: the number of species in a phytosociological relevés, phytosociological structure, floristic diversity expressed by the Shannon-Wiener index (H’) and the method of plant community valorization according to Oświt. Site conditions: moisture (F), soil reaction (R), soil nitrogen content (N) of the examined meadow communities were evaluated using the Ellenberg phyto-indication. Both natural and usefulness values of the examined communities depend on the place of occurrence in the valley. The communities situated closest to the river, which were assigned to the class of Phragmitetea, developed in their typical forms and presented significant and moderately significant natural values, although their sward was found to be characterized by low usefulness value. Communities growing further from the river, representing the Molinio-Arrhena-theretea class, are utilized at the present time. Grasses found in these communities are of moderate natural importance but the meadows provide high yields of good fodder value.
Źródło:
Acta Scientiarum Polonorum. Agricultura; 2007, 06, 4
1644-0625
Pojawia się w:
Acta Scientiarum Polonorum. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An attempt to use functional diversity indices for the assessment of weed communities
Próba zastosowania wskaźników różnorodności funkcjonalnej do oceny zbiorowisk chwastów
Autorzy:
Jastrzebska, M.
Wanic, M.
Kostrzewska, M.K.
Treder, K.
Nowicki, J.
Powiązania:
https://bibliotekanauki.pl/articles/26805.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
functional diversity
functional group
functional diversity index
assessment
weed community
plant community
weed
barley
spring barley
crop rotation
species list
Opis:
This paper presents an analysis of changes in functional diversity of weeds in spring barley grown in the period 1990- 2004 in crop rotation after potato with a 25% share of this cereal (potato – spring barley – field pea – winter triticale) as well as in crop rotation with its 75% share (potato – spring barley – spring barley – spring barley) in which barley was grown once and twice after the same barley crop. No weed control was used in the present experiment. Every year in the spring (at full emergence of barley) and before harvest, the species composition and numbers of individual weed species were determined, as well as their weed biomass before harvest. On this basis, the selected functional diversity indices were calculated. Multidimensional techniques were used for dividing weeds into functional groups and for the determination of some of the indices. Potato/barley crop rotation with a 25% share of barley and growing spring barley once and twice after the same barley crop did not differentiate weed functional biodiversity. The weed functional diversity indices showed different variations over time. Higher variation was usually observed for the indices calculated for the summer communities compared to the spring ones. The strength and significance of the positive correlation between weed functional diversity and precipitation in the growing season and of the negative correlation with mean temperature for the period from April to August were dependent on the measure of diversity. The functional diversity indices showed high convergence. The FD and FAD indices proved to be interchangeable.
W pracy przedstawiono analizę zmian różnorodności funkcjonalnej chwastów w jęczmieniu jarym uprawianym w latach 1990-2004 w płodozmianie z 25% udziałem tego zboża (ziemniak – jęczmień jary – groch siewny – pszenżyto ozime) w następstwie po ziemniaku i w płodozmianie z 75% jego udziałem (ziemniak – jęczmień jary – jęczmień jary – jęczmień jary) w jedno- i dwukrotnym następstwie po sobie. W eksperymencie nie stosowano ochrony przed chwastami. Corocznie, wiosną (w pełni wschodów zboża) i przed zbiorem oznaczano skład gatunkowy i liczebność poszczególnych gatunków chwastów, a przed zbiorem także ich biomasę. Na tej podstawie obliczono wybrane wskaźniki różnorodności funkcjonalnej. W rozdzieleniu chwastów do grup funkcjonalnych oraz ustaleniu niektórych wskaźników wykorzystano techniki wielowymiarowe. Następstwo jęczmienia po ziemniaku w płodozmianie z 25% udziałem jęczmienia oraz jedno- i dwukrotne jego następstwo po sobie nie różnicowało różnorodności funkcjonalnej chwastów. Wskaźniki różnorodności funkcjonalnej chwastów wykazywały zróżnicowaną zmienność w czasie. Większą zmienność notowano zwykle w ramach wskaźników liczonych dla zbiorowisk letnich, niż wiosennych. Siła i istotność dodatniej korelacji różnorodności funkcjonalnej chwastów z ilością opadów za okres wegetacji oraz ujemnej ze średnią temperaturą w okresie od kwietnia do sierpnia kształtowały się zależnie od miernika różnorodności. Wskaźniki różnorodności funkcjonalnej wykazywały dużą zbieżność. Wzajemnie zastępowalne okazały się wskaźniki FD i FAD.
Źródło:
Acta Agrobotanica; 2012, 65, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How do plant communities and flower visitors relate? A case study of semi-natural xerothermic grasslands
Autorzy:
Chmura, D.
Adamski, P.
Denisiuk, Z.
Powiązania:
https://bibliotekanauki.pl/articles/58767.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
plant community
xerothermic grassland
semi-natural calcareous grassland
calcareous vegetation
entomofauna
species richness
sampling effort
phytocoenosis
Festuco-Brometea class
Inuletum ensifoliae Adonido-Brachypodietum pinnati community
transitional plant
grassland
insect
flower visitor
Źródło:
Acta Societatis Botanicorum Poloniae; 2013, 82, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plant communities of cultivated fields of the Podlaski Przelom Bugu mesoregion. Part 5. Root crop communities of light soils
Zbiorowiska roslinne pol uprawnych Podlaskiego Przelomu Bugu. Cz.V. Zbiorowiska upraw okopowych gleb lekkich
Autorzy:
Rzymowska, Z
Skrzyczynska, J
Powiązania:
https://bibliotekanauki.pl/articles/28150.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Polska
species number
Podlaski Przelom Bugu mesoregion
Panico-Setarion community
floristic composition
light soil
plant community
natural condition
root crop community
cultivated field
Echinichloo-Setarietum association
agrophytocoenosis
Setaria pumila-Setaria viridis community
Opis:
This present paper, focused on root crop communities of light soils, is a part of the wide range characteristics of segetal communities of the Podlaski Przełom Bugu (Podlasie Bug River Gorge) mesoregion. On the basis of 160 phytosociological relevés made according to the Braun-Blanquet method, phytocenoses representing the Panico-Setarion alliance were distinguished. Most often, patches of the association Echinochloo-Setarietum were recorded in the study area. Heterogeneous habitat conditions affect its floristic diversity. Two subassociations of the phytocenosis, divided according to the species composition into 9 lower syntaxa, were identified on light soils. The following subassociations were distinguished: Echinochloo-Setarietum setarietosum glaucae in a typical variant and a variant with Juncus bufonius, both with subvariants with Digitaria ischaemum, as well as a typical variant of Echinochloo-Setarietum typicum, a variant with Juncus bufonius and a subvariant with Oxalis stricta in the typical and wet variant. Another association found in root crops on light soils of the Podlaski Przełom Bugu mesoregion is Digitarietum ischaemi. Its patches were observed in cultivations on light, acidic, poor soils. The characteristic feature of this community is the occurrence of numerous acidophilous species. In habitat conditions typical for the Podlaski Przełom Bugu mesoregion, Digitarietum ischaemi is differentiated into the typical and wet variant. Quite frequent patches of the Setaria pumila-Setaria viridis community were noted in intermediate habitat conditions, between those characteristic for Digitarietum ischaemi and Echinochloo-Setarietum.
Przedstawione w niniejszej pracy zbiorowiska roślin okopowych uprawianych na glebach lekkich są częścią charakterystyki zbiorowisk segetalnych Podlaskiego Przełomu Bugu. Na podstawie 160 zdjęć fitosocjologicznych wykonanych metodą Braun-Blanqueta wyróżniono fitocenozy reprezentujące związek Panico-Setarion. Najczęściej na badanym terenie notowano płaty Echinochloo-Setarietum. Zróżnicowanie florystyczne fitocenoz tego zespołu warunkują różnorodne warunki siedliskowe. Na siedliskach zaliczanych do gleb lekkich wyróżniono dwie subassocjacje tego zespołu, które skład florystyczny różnicuje na 9 niższych rangą syntaksonów. Wyróżnione zostały podzespoły Echinochloo-Setarietum setarietosum glaucae z wariantami typowym i z Juncus bufonius oraz podwariantami z Digitaria ischaemum, a także Echinochloo-Setarietum typicum wariant typowy oraz wariant z Juncus bufonius i podwariant z Oxalis stricta w wariancie typowym i wilgotnym. Zespół ten jest najbardziej rozpowszechniony i zróżnicowany florystycznie. Drugim zespołem gleb lekkich wykształcającym się w uprawach okopowych Podlaskiego Przełomu Bugu jest Digitarietum ischaemi. Jego płaty zachwaszczają przede wszystkim uprawy na glebach lekkich, kwaśnych i mało żyznych. Cechą tych zbiorowisk jest liczne występowanie wielu gatunków acidofilnych. W warunkach siedlisk Podlaskiego Przełomu Bugu Digitarietum ischaemi różnicuje się na wariant typowy i wilgotny. Dość częstymi fitocenozami, zajmującymi siedliska pośrednie między Digitarietum ischaemi a Echinochloo-Setarietum są płaty zbiorowiska Setaria pumila-Setaria viridis.
Źródło:
Acta Agrobotanica; 2007, 60, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 17

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