PHYTOSOCIOLOGICAL AND ECOLOGICAL STUDIES OF AQUATIC MACROPHYTES (HYDROPHYTES), IN NORTHERN GREECE
Abstract
THE MAIN OBJECT OF THIS WORK IS THE STUDY OF THE VEGETATION OF HYDROPHYTES (SUBMERGED, FLOATING - LEAVED AND FREE - FLOATING MACROPHYTES) FROM A PHYTOSOCIOLOGICAL AND ECOLOGICAL STANDPOINT IN THE MOST IMPORTANT HYDROBIOTOPES OF NORTHERN GREECE. 48 TAXA OF HYDROPHYTES AND 40 TAXA OF HYPERHYDRATE MACROPHYTES WHICH CONSTITUTE THE FLORA OF THE AREA WERE RECOGNISED. A TOTAL OF 24 PLANT ASSOCIATIONS WERE CONFIRMED WHICH BELONG TO 3 CLASSES (POTAMETEA, CERATOPHYLLETEA AND LEMNETEA) AND 6 ALLIANCES AND THE LIFE AND GROWTH FORM SPECTRUMS AND THE CHOROLOGICAL SPECTRUMS OF THE PLANT ASSOCIATIONS ARE GIVEN. FOR EACH PLANT ASSOCIATION WERE EXAMINED AS REGARDS THE PHYSICOCHEMICAL FACTORS OF THE WATER AND THE TEMPERATURE AND TRANSPARENCY OF THE WATER WERE MEASURED ALONG WITH THE OXYGEN DISSOLVED IN THE WATER, THE PH VALUE, THE CONDUCTIVITY, THE ALKALINITY, THE NUTRIENTS - PHOSPHORUS AND NITROGEN AND THE MACRONUTRITIVE CATIONS OF THE METALS SODIUM, POTASSIUM, CALCIUM AND MAGNESIUM. THUS ...
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