| Research Articles |
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| Migration and accumulation of heavy metals in disturbed landscapes in developing ore deposits, East Kazakhstan |
| Gulzhan BEISEYEVA1, Jilili ABUDUWALI2 |
1 Kazakh Research Institute of Soil Science and Agrichemistry named for U.U.Uspanov, Almaty 050060, Kazakhstan;
2 State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China |
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Abstract This paper studied the contents of heavy metals and their accumulation in the disturbed landscapes in ore deposits of East Kazakhstan. A total of 14 sites were examined in Zyrynovsky and Tishinsk deposits and Ridder town, and 50 soil samples were taken. Results indicated that the contents of heavy metals in the soil reached the maximum permissible concentration. Emissions of the zinc plant negatively affected the soil of nearby territories. In the remediated areas, a high concentration of heavy metals was observed at a depth where the bulk soil borders the rock. Accumulation of heavy metals on the surface of the remediated areas occurred due to biological accumulation in the plant. Plants transmitted heavy elements through the root system to the upper vegetative organs, making them accumulate in the upper layers of the soil. The heavy metals migrated and accumulated from the lower layers to the surface layers of the soil. The absence of soil meso-fauna resulted in the contamination of soil by heavy metals. The analysis of water samples, taken from the waste storages and the waste waters with heavy metals in the Zyryanovsk deposit and Ridder town, revealed severe water contamination.
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Received: 29 May 2012
Published: 01 June 2013
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| Fund: The International Science & Technology Cooperation Program of China (2010DFA92720), the International Scientific-Technical Center Project (K-463), and the project 07N. (4.2.3) “Study of the ecosystem of disturbed lands and soil-forming processes on remediated phytotoxic dumps in EKR” and “Soil formation and evaluation of soil-ecological functions in techno-disturbed landscapes” |
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