Kaies Sami Muhamed* (1), and Ammar Fakhree Khdeer(2)
(1)- Environment Department, Local directorate of Slah Al-Deen Iraq.
(2)-Horticulture Department, Faculty of Agriculture, Takreet University, Iraq.
(*Corrsponding author: Kaies Sami Muhamed. E-Mail: muhamadabo243@gmail.com).
Received: 09/02/2019 Accepted: 10/11/2019
Abstract
The experiment was conducted in the wooden canopy of the Department of Horticulture and Gardening Engineering – College of Agriculture / Tikrit University during the spring season 2019-2020 to study the phytoremediation of lead and copper pollution by using Damas Conocarpus lancifolius saplings. Randomized Complete Block Design (R.C.B.D) was used with three replications and three factors that were arranged within the experimental units according to the split-split plot system. Where the organic matter coefficients (0, 20) g kg-1, symbolized as F0, F1, were distributed on the main plots, and soil pollution factors (0, 0.4, 1.25) g kg-1, Which coded as P0, P1, P2, Were distributed in the secondary plots. The third factor was sulfur (0, 1.5, 3) g kg-1 which coded as S0, S1, and S2 in the sub plots. The results showed that the concentrations of heavy elements in the soil decreased at the end of the experiment, and this indicated the ability of Damas plant phytoremediation soil polluted heavy elements . And Damas plant’s high ability to accumulate heavy elements (lead and copper) in different tissues and parts. As the plant accumulation of heavy elements increased by increasing heavy elements concentrations. It was found that the highest accumulation of these two elements was in the root system (358.89) mg kg-1 at a concentration (0.4) g kg-1 for the element of lead when treatment P1 and (293.67) mg kg-1 at a concentration (1.25) g kg-1 for the element. Copper when treated with P2..
Keyword: Damas sapling, Heavy elements , Sulphur, Organic matter.
Full paper in Arabic: PDF