| Distribution of Selenium in Corn and Its Relationship With Soil Selenium in Yutangba Mini—Landscape |
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| 摘 要： |
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| 关 键 词： | 硒 营养成分 河北 土壤 谷物 |
| 收稿时间： | 23 January 2009 |
Distribution of selenium in corn and its relationship with soil selenium in Yutangba mini-landscape |
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| Authors: | Jianming Zhu Baoshan Zheng Zhongliang Wang Huayun Xiao Dajun Mao Hongcan Su |
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| Institution: | (1) CAS Key Laboratory of Crust-Mantle Materials and the Environment, School of Earth and Space Sciences, University of Science and Technology of China, 230026 Hefei, China;(2) State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi’an, 710075, Shannxi, People’s Republic of China;(3) College of Earth Science, Graduate University of Chinese Academy of Sciences, 100049 Beijing, China;(4) Illinois State Geological Survey, Champaign, IL 61820, USA;(5) Department of Biology and Chemistry, City University of Hong Kong (CityU), 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China;(6) Advanced Laboratory of Environmental Research and Technology (ALERT), Joint Advanced Research Center, USTC-CityU, 215123 Suzhou, China; |
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| Abstract: | Within the range of 0.01 km mini-landscape in Yutangba, Enshi, Hubei Province, the content of Se in corn is very high. The average Se contents in root, stem, leaf and seed of corn were estimated to be 4.36±3. 27mg/kg, 3.08±2.24 mg/kg, 9.74±7.62mg/kg, and 8.07±5.02mg/kg, respectively. The research results show that there is a significantly positive correlation between corn selenium and soil selenium, and thus according to the distribution of Se in corn, three subregions can be divided in Yutangba. The content of selenium in corn is controlled by that of soil. A little variation in selenium content in soil will lead to a considerable corresponding variation in corn. So it is deduced that the organs that contain relatively high Se in plants may be used as a sensitive selenium indicator of Se levels in the environment. |
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