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2016, 35(2) 593-600 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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Study on form distribution of soil iron in western Jilin and its correlation with soil properties |
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LIANG Shuo, LI Yue-Fen, TANG Jie, WANG Yue-Jiao, LI Qing-Yu |
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1. College of Earth Sciences��Jilin University��Changchun 130061��China; 2. College of Environment and ��esources��Jilin University��Changchun 130012��China |
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Abstract��
Through investigating 50 surface soil samples of three agricultural and pastoral areas (Taonan City�� Tongyu County and Qian’an County) in western Jilin��the authors explored form distribution and the relations between soil properties and soil iron form�� The results show there exist 7 forms of iron��including residual phase (A) �� Fe- - Mn oxide phase (B) �� humic acid phase (C) �� carbonate phase (D) �� strong organic phase (E) �� water solubility phase (F) �� exchangeable phase (G)�� A is the main form in soil of western Jilin��and the av- erage iron content of soil is lower than the background value in China�� There is a significantly positive correlation between Caption Exchange Capacity (CEC) and A��soil pH and B��soil organic matter content and C��E�� Soil mineral elements are significantly correlated with A�� C��D and G are the next�� The relations in different forms of soil iron show that B��C and D have significantly positive correlations with each other��while the other forms have little correlation�� |
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Keywords��
iron
form
soil properties
western Jilin
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Received Revised Online: |
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