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In the years 1974-1975 investigations were carried out into the transpiration dynamics and water content of the helophytes during the growing season. The investigations covered the following 6 helophyte species, dominant in the lake littoral: Phragmites australis ( Cav.) Trin. ex Steud., Glyceria aquatica (L.) Wahlb., Typha latifolia L., T. angustifolia L., Acorus calamus L., Schoenoplectus lacustris (L.) Palla. The helophytes were found to use in the transpiration process up to 3 m3 of water per 1 m2 surface area of the community during the growing season. Helophytes show maximum transpiration rate at noon, or an impeded transpiration rate at this time of the day, this feature depending on the species. During the growing season, the transpiration rate increases from spring until midsummer, and then towards the autumn it steadily decreases.
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Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.