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2012, 31(1) 224-230 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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Activation characteristics and influence factors of REE in soil in Yanbian of Jilin |
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WANG Meng-1, WANG Dong-Yan-1, LI Yue-Fen-1, CHANG Yuan-2, YANG Yuan-Yuan-1 |
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1. College of Earth Sciences��Jilin University��Changchun 130061��China; 2. Land Surveying and Mapping Institute of Shandong Province��Jinan 250013��China |
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Abstract��
The total contents and available contents of 15 kinds of REE in Yanbian area were analyzed by the ICP-MS��and the activation characteristics of REE in soil and the influence of total contents with pH value in soil on the activation of REE were studied�� The results showed that: the contents of available REE in Yanbian area ranged from 18. 52 to 118. 02 mg /kg��averaging 56. 75 mg /kg�� The spatial distribution of available REE had significant differentiation�� The activation coefficient of REE ranged from 0. 23 to 0. 46��which indicated it was greatly impacted by the environmental factors�� The total and available contents of REE in soil had significantly positive correlation�� with its coefficient ranging from 0. 480 to 0. 779��and the available contents of REE were controlled by the total contents�� The activation coefficient of partial REE had great positive correlation with the pH value of soil�� |
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Keywords��
REE
activation characteristics
available
influence factors
Yanbian
Jilin
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Received Revised Online: |
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