Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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ASSESSMENT EFFICIENCY OF ALISMA PLANTAGO-AQUATICA L. AND SAGITTARIA SAGITTIFOLIA L. (THIS. ALISMATACEAE VENT)

Aljabysheva E.A. 1
1 Mari state university
The algorithm of determination of biological efficiency and accumulation of biogenic elements separate ontogenetic is offered groups of individuals and populations of coastal and water plants. In an ecological number of a trofnost of lakes of national park «Mary Chodra» on the example of Alisma plantago-aquatica L. populations and Sagittaria sagittifolia L. (this. Alismataceae Vent. ) change of demographic indexes is analysed, their role in coastal and water ecosystems is defined. It is shown that at increase in anthropogenous loading at lake ecosystems their trofnost increases, but density of separate ontogenetic groups of individuals in populations thus decreases. The greatest ability to accumulate nitrogen and phosphorus characterized populations wall-paper of types the lakes located in vicinities Yalchik. In scales of accumulation of nitrogen and phosphorus Alisma plantago-aquatica L populations have short odds. Speed of circulation of biogenic elements in communities with Sagittaria sagittifolia L. above.