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2 Klink A.

2 2004

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Content of selected chemicals in two protected macrophytes : Nymphaea alba (L.) and Nuphar lutea (L.) SIBITH. & SM. in relation to site chemistry

Klink A.

Polish Journal of Ecology

2004

Vol. 52, nr 2

229-232

Concentration of heavy metals and macronutrients were measured in water, bottom sediments and in theleaves of Nymphaea alba and Nuphar lutea sampled from fourteen eutrophic lakes in West Poland. The concentrations of macro- and microelements in examined plants differ significantly and depend on chemical properties of the water and bottom sediments. These dependence are confirmed by calculated significant correlations. Strong positive correlations were found between concentrations of Ba, Co, Mn, and Cu in Nymphaea alba as well as Sr in Nuphar lutea and concentration of this element in environment, indicating the potential of examined plants for monitoring for these metals.

Równowaga kationowa w liściach wybranych gatunków makrohydrofitów

Klink A.

Archiwum Ochrony Środowiska

2004

Vol. 30, no. 4

111-118

Celem przeprowadzonych badań było określenie sum ważonych pierwiastków kwadratowych koncentracji względnych makro- i mikroelementów (według Czarnowskiego) w roślinach wodnych z gatunków Nymphaea alba L. i Nuphar lutea (L.) Sibith. & Sm., pochodzących z 14 jezior Pojezierza Leszczyńskiego. Wartości sum ważonych mieszczą się w zakresie od 13,2 do 13,8 dla Nymphaea alba L. oraz od 13,5 do 14,0 dla Nuphar lutea (L.) Sibith. & Sm. Z powodu wysokich zawartości wapnia i sodu w liściach badanych roślin, sumy ważone przekraczały wartość 12,5, podawaną przez Czarnowskiego. Istotna, ujemna korelacja między zawartościami względnymi potasu i wapnia świadczy o wzajemnym antagonizmie tych kationów. Z kolei dodatnie korelacje pomiędzy potasem i azotem, magnezem i cynkiem, kadmem i ołowiem, żelazem i miedzią, żelazem i glinem, glinem i manganem, kadmem i manganem, kadmem i niklem, kadmem i cynkiem oraz niklem i cynkiem potwierdzają możliwość wystąpienia oddziaływań synergistycznych.

In the paper the cationic equilibrium in the leaves of aquatic plants Nymphaea alba L. and Nuphar lutea (L.) Sibith. & Sm. was studied according to Czarnowski method. Plant material was collected in 25 sites from littoral of fourteen eutrophic lakes of Pojezierze Leszczyńskie in West Poland. After the leaves had been cleaned, dryed and pulverized, the concentrations of N, P, K, Ca, Mg, Na, S, Fe, Sr, V, Cu, Cr, Mn, Ni, Cd, Al, Co, Pb, Zn, and Ba in them were determined. Next, the relative concentrations of the examined elements (concentration of each element in relation to the sum of all elements) and their relationships were calculated. The values of weighed sums of square roots of the relative cation concentrations in Nymphaea alba L. and Nuphar lutea (L.) Sibith. & Sm. varied from 13.2 to 13.8 and from 13.5 to 14.0, respectively. These values were higher than 12.5 given by Czarnowski because of high calcium and sodium concentrations. Significant positive correlations between relative concentrations of potassium and nitrogen, magnesium and zinc, cadmium and lead, iron and copper, iron and aluminium, aluminium and manganese, cadmium and manganese, cadmium and nickel, cadmium and zinc, as well as nickel and zinc were found, which proves the evidence for existence of synergism between these ions. However, substantial negative correlation between potassium and calcium testified to antagonism between these cations.