employee from 01.01.2006 to 01.01.2025
Yelets State University named after Ivan Bunin (agricultural technologies, storage and processing of agricultural products, assistant professor)
employee from 01.01.2006 until now
Russian Federation
UDC 632.95.024.4
A comprehensive study of the effects of lead (Pb) and cadmium (Cd) on the growth and development of agricultural crops (dill, lettuce, radish, spring wheat, sugar beet, potatoes) under conditions of model contamination of leached chernozem has been conducted. The processes of complexation of Pb2⁺ and Cd2⁺ ions with humic (HA) and fulvic acids (FC) have been studied using potentiometric titration, IR spectroscopy, and computer modeling. It was found that fulvic acids form stronger complexes with TM (lg K ust 8.2–8.9) than humic acids (lg K ust 4.3–4.5). Species differences in plant resistance were revealed: radish and spring wheat showed high tolerance to cadmium without reducing biomass, while lettuce and dill showed significant inhibition of growth, especially with the combined action of metals. The coefficients of biological accumulation (KBP) of TM were determined, which showed that potatoes actively accumulate metals (KBP > 1), which poses a risk to food safety. The results of the work are important for forecasting environmental risks and developing methods for the rehabilitation of polluted lands.
heavy metals, phytotoxicity, humic acids, complexation, translocation, coefficient of biological accumulation, leached chernozem, lead, cadmium.
1. Il'in V.B. Tyazhelye metally v sisteme pochva-rastenie. – Novosibirsk: Nauka, 2011. – 151 s.
2. Kabata-Pendias A., Pendias H. Mikroelementy v pochvah i rasteniyah. – M.: Mir, 2009. – 439 s.
3. Orlov D.S. Gumusovye kisloty pochv. – M.: Izd-vo MGU, 2004. – 332 s.
4. Karpuhin A.I., Yashin I.M., Chernikov V.A. Formirovanie i migraciya kompleksov vodorastvorimyh organicheskih veschestv s ionami tyazhelyh metallov v taezhnyh landshaftah Evropeyskogo Severa // Izv. TSHA. – 2003. – Vyp. 2. – S. 107–126.
5. Kravchenko A.L., Stekol'nikov Yu.A. Tyazhelye metally v sisteme pochva-rastenie v usloviyah zagryazneniya // Uchenye zapiski Orlovskogo gosudarstvennogo universiteta. – 2013. – № 3. – S. 190–193.
6. Shnitcer M. Himicheskaya struktura i svoystva guminovyh kislot // Pochvovedenie. – 2005. – № 8. – S. 23–32
7. Metodicheskie rekomendacii po provedeniyu polevyh i laboratornyh issledovaniy pochv i rasteniy pri kontrole zagryazneniya okruzhayuschey sredy metallami. – M.: Gidrometeoizdat, 2001. – 25 s.
8. Stevenson F.J. Humus Chemistry: Genesis, Composition, Reactions. – 2nd ed. – N.Y.: John Wiley & Sons, 2004. – 512 p.
9. Leroy J.-B., Fressonnet B. Traitement de lazoteorganiquedans les eaux potables // Techn. et sci. mimic. -2005. - N 2.- P. 79-86.
10. Laatsch W. Untersuchungenuber die Bildung und Anreicherung von Humusstoffen Steinkopf-2004. Bd 7.- S.17-24.
11. Rebhun M., Fuhrer Z., Adin A. Contact flocculation-filration of humic
12. substances // Water Res..-2004.- Vol.18.- N 8.- P. 963-970.
13. Zhoi J.L., Banks C.J. Fraktionation of humic acid components by ion
14. exchange chromatography // Environ. Technol.-2010.-Vol.l.- N 12. P. 1147-1152.
