RECOLONISATION PROCESS IN ABANDONED Molinietum caeruleae MEADOWS – THE INFLUENCE OF POSITION WITHIN GAPS ON MICROSITE CONDITIONS AND SEEDLING RECRUITMENT
Journal Title: Acta Scientiarum Polonorum – Agricultura - Year 2015, Vol 14, Issue 1
Abstract
Investigations were carried out in patches of Molinietum caeruleae meadows dominated by small meadow species (patch I), characterised by prevailing large-tussock grasses (patch II), and overgrown by willow shrubs and bordered by trees (patch III). In each patch, 15 circular gaps with a radius measuring 30 cm were artificially created by the removal of the plant canopy and litter layer. Subsequently, each gap was divided into a central part, with a radius of 20 cm, and a peripheral part. Light intensity and soil temperature were greater in the central parts of these openings than in their peripheries, while ground humidity presented the inverse tendency. Despite heterogenous environmental conditions in the gaps, the total numbers of species/seedlings noted in their central and peripheral parts did not differ significantly. The majority of taxa recruited similarly over the entire surface of openings; a much lower number of species colonized primarily the central parts of gaps; the lowest number of taxa appeared at the edges of openings. In the light of these investigations, it may be assumed that heterogenous microsite conditions in openings enable the recruitment of taxa with various germination requirements and contribute to the maintenance of species diversity.
Authors and Affiliations
Kinga Kostrakiewicz-Gierałt
OIL CONTENT AND FATTY ACID PROFILE IN SEEDS OF POLISH BREEDING LINES AND CULTIVARS OF LEGUMES
Current studies aimed at replacing soya bean meal with other legumes should take into consideration not only protein content and quality, but also the content and quality of oil. The aim of this study was to assess the P...
EFFECT OF COMPETITION AND WATER STRESS ON MORPHOLOGICAL TRAITS OF SPRING BARLEY GROWN WITH RED CLOVER
Based on a 3-year pot experiment carried out according to an additive design, the effect of competitive effect of red clover and water deficit was studied on morphological traits of spring barley (length of the root, sho...
METHOD AND TIME OF ALFALFA SOWING WHEN CLIMATE IS CHANGING
The inspiration to reassess method and timing for establishing alfalfa (Medicago sativa L.) is meteorological data documenting that current Polish winters are milder than several decades ago, when management recommendati...
AGRONOMIC AND ECONOMIC CHARACTERISTICS OF COMMON WHEAT AND SPELT PRODUCTION IN AN ORGANIC FARMING SYSTEM
Background. This study investigated the agronomic and economic determinants of production of selected common wheat and spelt cultivars in an organic farming system. The aim of the study was to identify the production and...
THE FORMATION OF SELECTED SOIL PHYSICAL PROPERTIES AFFECTED BY UNDERSOWN SPECIES UNDER ORGANIC WINTER RYE CULTIVATION
Two-factor field experiment was conducted in 2011-2014 and it was designed with split-plot method. The objective of the research was to assess the effect of undersown white clover and common serradella into single-cultiv...