- Adriana, D.C., 2001. Trace Elements in Terrestrial Environments: Biogeochemistry, Bioavailability, and Risks of Metals. Springer Science & Business Media, 867p.
- Aftabtalab, N., 2008. Ability of phytoremediation of Lead and Cadmium by Platanus orientalis and Cupressus arizonica. M.Sc. Thesis, Department of Forestry and Forest Economics, Faculty of Natural Ressources, University of Tehran, Karaj, 144p (In Persian).
- Alexander, L., 2000. Role of root functions on cadmium uptake by plants – structural aspects of root organization. Department of Plant Physiology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia.
- Antonkiewicz, J. and Jasiewicz, C., 2002. The use of plants accumulating heavy metals for detoxification of chemically polluted soils. Electronic Journal of Polish Agricultural Universities, 5: 121-143.
- Assareh, M.H., Shariat, A. and Ghamari-Zare, A., 2008. Seedling response of three Eucalyptusspecies to copper and zinc toxic concentrations. Caspian Journal of Environmental Science, 6(2): 97-103.
- Atashnama, K., Golchin, A. and Esmaeeli, M., 2006. The accumulation of heavy metals in Medicago, Onobrychis and Lathyrus. Proceedings of the Conference on Soil, Environment and Sustainable Development, Karaj, 3p (In Persian).
- Bodar, C.W., Pronk, M.E. and Sijm, D.T., 2006. The European Union risk assessment on zinc and zinc compounds: The process and the facts. Integrated Environmental Assessment and Management, 1: 301-319.
- Doumett, S., Lamperi, L., Checchini, L., Azzarello, E., Mugnai, S., Mancuso, S., Petruzzelli, G. and Del Bubba, M., 2008. Heavy metal distribution between contaminated soil and Paulownia tomentosa, in a pilot-scale assisted phytoremediation study: Influence of different complexing agents, Chemosphere, 72: 1481-1490.
- Fotakis, G. and Timbrell, J.A., 2006. Role of trace elements in cadmium chloride uptake in hepatoma cell lines. Toxicology Letters,164: 97-103.
- Hosseinzadeh Monfared, S., Matinizadeh, M., Shirvany, A., Zahedi Amiri, G., Mousavi Fard, R. and Rostami, F., 2013. Accumulation of heavy metal in Platanus orientalis, Robinia pseudoacacia and Fraxinus rotundifolia. Journal of Forestry Research, 24(2): 391-395.
- Kabata, A. and Pendius, H., 1992. Trace Elements in soils and plants. CRC Press Inc., Boca Raton, Florida.
- Kadukova, J. and Kalogerakis, N., 2007.Lead accumulation from non-saline and saline environments by Tamarix smyrnensis Bunge. European Journal of Soil Biology, 43: 216-223.
- McGrath, S.P., Zhao, F.J. and Lombi, E., 2002. Phytoremediation of metals, metalloids, and radionuclides. Advances in Agronomy, 75: 1-56.
- Mohamadi, M., Shirvani Mahani, S. and Fotovat, A., 2006. Compared the absorption of zinc and cadmium in radish and cress and study their interactions. Proceedings of the Conference on Soil, Environment and Sustainable Development, Karaj, 3p (In Persian).
- Prasad, M.N.V., 1995. Cadmium toxicity and the tolerance in vascular plants. Environmental and Experimental Botany 35: 525- 545.
- Pulford, I.D. and Watson, C., 2003. Phytoremediation of heavy metal-contaminated land by trees – a review. Environment International,29: 529-540.
- Root, R.A., Miller, R.J. and Koeppe, D.E., 1975. Uptake of cadmium- Its toxicity, and effect on the iron- to- zinc ratio in hydroponically grown corn. Journal of Environmental Quality, 4: 473-476.
- Soroush, F., Mousavi, F., Razmjou, K. and Mostafazadeh Fard, B., 2008. Effect of filter effluent on absorption some elements of soil by the grass in different soils texture. Journal of Soil and Water (Sciences and Technology of Agricultural), 22(2): 285-294 (In Persian).
- Tlustos, P., Szákova, J., Vyslouzilova, M., Pavlikova, D., Weger, J. and Javorska, H., 2007. Variation in the uptake of arsenic, cadmium, lead and zinc by different speciesof willows )Salix ssp.( grown in contaminated soils. Central European Journal of Biology, 2: 254-275.
- Unterbrunner, R., Puschenreiter, M., Sommer, P.A., Wieshammer, G., Tlustos, P., Zupan, M. and Wenzel, W.W., 2007. Heavy metal accumulation in trees growing on contaminated sites in Central Europe. Environmental Pollution, 148: 107-114.
- Vandecasteele, B., Meers, E., Vervaeke, P., De Vos, B., Quataert, P. and Tack, F.M.G., 2005. Growth and trace metal accumulation of two Salix clones on sediment-derived soils with increasing contamination levels. Journal of Chemosphere, 58: 995-1002.
- Vassilev, A., Tsonev, T. and Yordanov, I., 1998. Physiological response of barely plants (Hordeum vulgaris) to cadmium contamination in soil during ontogenesis. Environmental Pollution, 103: 287-293.
- Utmazian, M.N.D.S. and Wenzel, W.W., 2007. Cadmium and zinc accumulation in willow and poplar species grown on polluted soils. Journal of Plant Nutrition Soil Science, 170: 265-272.