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SM ISO690:2012 КАПИТАЛЬЧУК, Иван, КАПИТАЛЬЧУК, Марина, IZMAILOVA, Dina, БОГДЕВИЧ, О.П.. Биогенные микроэлементы в почвах и растениях долины Днестра. In: Buletinul Institutului de Geologie şi Seismologie al AŞM, 2011, nr. 2, pp. 122-132. ISSN 1857-0046. |
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Buletinul Institutului de Geologie şi Seismologie al AŞM | ||||||
Numărul 2 / 2011 / ISSN 1857-0046 | ||||||
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Pag. 122-132 | ||||||
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The results of analysis of sample of soils and plants of sunflower, collected in the valley
of the river Dniester, are presented in the article. Quantitative correlations and
intercommunication of microelements of Se, Fe, Mn, Zn, Cu, Cd, are set in soils and plants, and also in the system "soil - plant". Correlation of microelements in relation to Fe in soils it is possible to present as a next sequence: 1,0 (Fe)> 2,7 -10-2(Mn)> 2,3 -10-3(Zn)>1,4 -10-3(Cu)> 2,0 -10-5(Cd)> 8,4 -10-6(Se). In the plants of sunflower the sequence of elements remains the same, however their quantitative correlation changes: 1,0 (Fe)> 0,4 (Mn)> 0,1 (Zn) > 0,1 (Cu)> 3,6 -10-3(Cd)> 2,4 -10-4(Se).
Intensity of accumulation of microelement plants characterizes the coefficient of biological accumulation, which is equal to the relation of amount of element in a plant to his maintenance in soil. It is set that in the plants of sunflower is accumulated on the average Fe - 1 %, Mn - 15 %, Se - 37 %, Zn - 55 %, Cu - 101 %, Cd - 210 % general maintenance of these elements in soil. In the article the charts of cross-correlation intercommunications of microelements are presented in soils, plants and system "soil-plant". The meaningful cross-correlation of concentration is educed statistically in soils of Se and Zn, and also for Fe with Mn and Zn. The most close intercommunication is traced between an amount in soils of Fe and Mn.
Between in size maintenances of different microelements in plants correlation mainly is not observed. However for a concentration meaningful positive cross-correlation dependence is set in the plants of Fe and Mn statistically. As a result of cross-correlation analysis of concentration of microelements in the system "soil-plant" separate intercommunications are educed between microelements in this system. A display statistically of meaningful cross-correlation is set between maintenance of Mn in soil and in size his accumulations by the plants of sunflower. In addition, an increase in soil of Cu is accompanied by the height of accumulation by the plants of Zn, and growth in soil of Cd results in an increase in the plants of Cu. A tendency to antagonism is observed for Cd on the relation of accumulation by plants Se. Negative correlation of necessary for plants microelements of Fe and Cu is educed with their coefficients of biological accumulation. It means that at diminishing of maintenance of Fe and Cu in soil, plants accumulate them more intensively, to provide a physiological optimum. At statistically meaningful level negative cross-correlation dependence of coefficient of biological accumulation of Cd and Se shows up also on their amount in soil, although these elements are not
necessary for plants. Antagonistic attitude toward the coefficient of biological accumulation of Se is shown by Zn and Cd. An increase in soil of Zn and Se can stipulate some diminishing of coefficient of biological accumulation for iron. At the same time growth in soil of maintenance of iron can be accompanied by diminishing of size of coefficient of biological accumulation of Cu. For Mn and Cu in soil, vice
versa a loosely-coupled positive cross-correlation interface is marked with the coefficients of biological accumulation of Cd and Zn accordingly. |
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