Department of Chemistry, Poznan University of Life Sciences, Poznan, Poland.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2009 Dec;44(14):1609-16. doi: 10.1080/10934520903263645.
This investigation was undertaken to determine efficiency of selected heavy metal ions by different Salix viminalis tissues in relation to local physicochemical parameters. Seven heavy metals (Cd, Co, Cr, Cu, Ni, Pb and Zn) were analyzed in 5 types of tissues (bark, root, shoots, leaves and petioles). The results presented here show different accumulation rates of tested metals in individual tissues depending on location and soil characteristics. A similar trend in the accumulation of elements in leaves and petioles was observed except for zinc and chromium. The quantities of heavy metals in shoots indicate their limited migration in plant (especially lead and cadmium). In contrast high levels of zinc in leaves were observed, which suggests strong migration of this metal to upper parts of plants. Analyzed willows were characterized by selective accumulation of ions of investigated heavy metals, with different metal migration abilities depending on location (soil properties e.g. limited migration of lead and intensive migration of cadmium and zinc to aboveground organs). A correlation between metal accumulation in the tissue and soil factors (pH, redox potential, total organic carbon) was observed. The total accumulation and translocation of heavy metal ions (especially chromium) depend on soil parameters and to some extent wood structure (cellulose, lignin).
本研究旨在确定不同柳枝稷组织对选定重金属离子的去除效率与当地理化参数之间的关系。在 5 种组织（树皮、根、茎、叶和叶柄）中分析了 7 种重金属（Cd、Co、Cr、Cu、Ni、Pb 和 Zn）。这里呈现的结果表明，测试金属在不同组织中的积累率因位置和土壤特性而异。除锌和铬外，叶片和叶柄中元素的积累趋势相似。枝条中重金属的含量表明它们在植物中的迁移能力有限（尤其是铅和镉）。相比之下，叶片中锌的含量较高，这表明该金属强烈地向上部迁移。分析的柳树具有对所研究重金属离子的选择性积累，其迁移能力取决于位置（土壤特性，例如铅的迁移能力有限，而镉和锌则强烈迁移到地上器官）。在组织中观察到金属积累与土壤因素（pH 值、氧化还原电位、总有机碳）之间存在相关性。重金属离子（尤其是铬）的总积累和迁移取决于土壤参数，在某种程度上还取决于木材结构（纤维素、木质素）。
