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U ovom je radu ispitivan utjecaj pH tla i dodatka kompleksirajućeg agensa na sadržaj kadmija u pojedinim biljkama. Tlo upotrijebljeno za ovaj eksperiment uzeto je s površina uz prometnicu u neposrednoj blizini Željezare u Zenici. Kompleksiranje tla izvršeno je s otopinom dinatrijeve soli etilendiaminotetraoctene kiseline, Na2H2Y, a snižavanje pH tla otopinom aluminijeva sulfata, Al2(SO4)3. Za navedena ispitivanja upotrijebljene su sljedeće biljke: zelena salata (Lactuca sativa var. capitata), mješavina trava, djetelina (Trifolium repens), kukuruz (Zea mays) i kopriva (Urtica dioica). Određivanje sadržaja kadmija u pripremljenom tlu i biljkama provodilo se spektrometrijskom metodom ICP-OES atomskim emisijskim spektrometrom, Perkin Elmer 7000DV. Rezultati provedenih ispitivanja pokazuju da smanjenje pH tla i kompleksiranje tla (kiselog i alkalnog) dovodi do povećanja akumulacije kadmija iz tla u nadzemne dijelove ispitivanih biljaka.

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In recent years, extensive research has been done on phytoremediation technology, but the study on repair mechanisms and the migration path of heavy metal contaminants in woody plants is particularly rare. The object of this study was Pan Yi mine reclamation area in Huainan as an example of cadmium (Cd) content within different parts of woody plants tissue. Based on the research findings about the migration path, the paper uses statistical methods to carry out the analysis by multiple models. Statistical methods applied multiple trend analysis: linear and logarithmic, and also conic, cubic, and compound curve, power exponent, S curve, growth and exponential regression model. The findings show that Cd is enriched along the root-stem-branch-leaf path in woody plants system in the form of cubic curve, i.e. y = b3x³ + b2x² + b1x + b0. The findings reveal that the enrichment capability of Cd in various parts of the same species of woody plants is different and this is also the case in different species. [ABSTRACT FROM AUTHOR]