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A large-scale field experiment with different management options (free-range grazing, onetime cutting, additional disturbances and their interactions) was carried out in a continental, dry heathland. Within the framework of the experiment seed production and germination ability of over-aged Calluna individuals as well as specific safe site conditions were investigated to reveal restricting factors...
The study was performed to identify, delimit and evaluate the current status of Arctostaphylo-Callunetum R.Tx. et Prsg 1940 heaths, as well as to point out possible threats to these communities and means of their protection. The heaths are in Czerwony Bór (PLH 200018) in Podlaskie voivodeship, NE Poland, in the area included in the Natura 2000 network. The study was performed in 2008 with the use...
Based on materials gained in March 2015 from the Forest Data Bank the survey of some attributes (forest address including Regional Directorate of State Forest (RDSF), area in hectares, soil unit, forest site type, dominant species in a forest stand and age of the dominant species in a stand) of post-agricultural lands occurring in Polish State Forests was conducted in the paper. Distribution of post-agricultural...
Plant functioning is affected by drought, extreme temperatures, heavy metal pollution and other unfavorable environmental conditions. High intensity of stress factors can be lethal to sensitive organisms or significantly decrease their condition. Intensification of stress factors is observed especially in urban and industrial areas. During the vegetative season plants purify the air and soil, decrease...
In connection with the implementation of the National Programme for Forest Cover Growth in Poland, environmental preconditions, national, EU and international legal requirements as well as necessity of the implementation of green economy in the framework of adaptation to climate change and regarding implementation of sustainable development, increase of total forest cover is very beneficial. However,...
The present study analysed the changes taking place in land use/ land cover and forest cover using multispectral satellite remote sensing data (LANDSAT TM, 2010, and LANDSAT OLI, 2013) around the Patehra, Danti, Mirzapur and Madihan forest ranges in Mirzapur district of Uttar Pradesh, India. Satellite data was visually interpreted to delineate land use and land cover classes. Post classification comparative...
Lycopodiella inundata is an endangered, wetland species, able to occur in secondary, anthropogenic habitats. The article presents five-year changes in the occurrence of Lycopodiella inundata on the one of the largest stands in Central Poland. Chosen parameters of population were examined in different stages of vegetation succession. In open thickets the number of fertile stems was near three times...
The lichen biota of the Karnieszewice Forest Division (N Poland) is presented. Despite it is predominantly a strongly managed woodland area, 270 lichen species were found there including many rare species for Poland, as well as for European Lowland. Near 20% of the whole lichen biota are considered to be threatened in the country (categories CR, EN, VU), and 34 species are protected by law in Poland...
In the study, the influence of soil compaction on the growth of silver fir seedlings (Abies alba Mill.) was evaluated; the soil compaction being measured using a cone penetrometer. The studies were conducted under a forest canopy, where the exploratory units with different soil compactions exerting a unit pressure of 50, 100, 150, 200, and 250 kPa, as well as the control units (without pressure),...
The paper presents the location and general description of habitats and plant communities with common milkweed occurring within the city limits of Toruń. The data set comprised new localities of this species as well as those where Asclepias syriaca has been observed for several years but the sites have not been described in the ecological literature. Relevés made at these sites were compared with...
The paper is to present the trends of typical species of meadow habitats to colonize the frontier habitats. The area of research is the fly-ash landfills in the power plant EDF Toruń SA in Toruń. Several times, during the year mix of fly-ashes and slug, resulting from the combustion of coal, is transported by pipeline and this is mixed with water. Floristic research was conducted twice: in 2013 and...
This preliminary study examined the arbuscular mycorrhizal (AM) status of native plant species in the Molinia meadows of Folusz in the Kujawy region, Poland. Root samples from ten plant species characteristic of Molinia meadows (Betonica officinalis, Dianthus superbus, Galium boreale, Inula salicina, Ostericum palustre, Sanguisorba officinalis, Selinum carvifolia, Serratula tinctoria, Silaum silaus,...
The impact of habitat conditions on the spatio-temporal variability of abundance and structure of subpopulations of Gentiana pneumonanthe L. was investigated in the years 2013-2015 in patches of abandoned Molinion caeruleae meadows in different stages of successional overgrowing (Patches I-III), as well as in a patch of willow thickets (Patch IV). The height of the standing vegetation and soil humidity...
In many ecological studies the theory prevails that the increased human economic activity can lead to simplification of species composition of phytocoenoses and a decline of their species diversity. However, there are also other views on this issue. Therefore, an attempt was undertaken to verify these contradictory opinions. The research was conducted at three sites characterised by a diversified...
The study was carried out in the Kostrze housing estate in Kraków. In the 2015 vegetation season, 35 relevés were taken with the Braun-Blanquet method. The aim of the study was to compile the current characteristics of the vegetation in intermittently wet Molinia meadows and to identify changes that occurred within 25 years. The analysed meadow stands comprised 129 species of vascular plants. The...
The paper presents characteristics of a meadow community with Trollius europaeus, threats posed to the community, and proposals for active protection thereof. The study was carried out in the “Łąki w Komborni” Natura 2000 site (PLH 180042) in the Podkarpacie Province (SE Poland). In 2015, 20 relevés were taken with the Braun-Blanquet method and they are presented in a synthetic table. Additionally,...
The research subject is the differentiation of plant communities and the preservation status of wet meadows of the Calthion palustris alliance at sites included in subsidy packages 4 and 5 of the agri-environmental scheme. The habitat was studied on 697 agri-environmental plots located in different areas of Poland. The obtained results show high differentiation of the plant communities, which could...
The aim of study was to assess the impact of intensive sheep grazing in the spring on the vegetation of xerothermic grasslands in Stawska Góra nature reserve, particularly the Carlina onopordifolia seedling development and preferences concerning the ingestion of specific plant species, including shrubs and tree-understory. In May 2015, 40 specimens of the Świniarka Sheep and Polish Lowland Sheep were...
The existence and functioning of spring ecosystems is determined by groundwater seepage or outflow. The water seeping through the ground surface triggers off the headward and deep erosion processes, which results in the channelled shape of the lowland rheocrenic springs. Spring areas significantly contribute to the floristic, phytocoenotic and landscape diversity. The literature on the vegetation...
The authors investigated the dynamics of ephemeral plant communities in the Stryzhen’ river estuary (N51°29’17’’, E31°18’57’’; Chernihiv, Ukraine; Eastern Polesia) after exposure to stress factors. The study of plant communities was carried out with generally accepted geobotanical methods. Samples of soil and water were analysed (in laboratory) using colorimetric methods and stripping voltammetry...
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