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Characteristics of selenium in crops and roots in China and recommendations for selenium-enriched soil standards |
Xiao-Meng CHENG1,2,3,4, Rong-Rong MA1,2,3,5, Min PENG1,2,3,5, Ke YANG1,2,3, Kuo LI1,2,3,5, Hui-Yan WANG1,2,3, Chao WU1,2,3,4, Zheng YANG1,2,3 |
1. Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China 2. Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China 3. Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, CAGS, Chinese Academy of Geological Sciences, Langfang 065000, China 4. UNESCO International Center on Global-scale Geochemistry, Langfang 065000, China 5. School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China |
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Abstract Selenium (Se) in plants is mainly derived from soil, and plants can be used not only to alleviate the problem of selenium deficiency, but also to manage environmental selenium toxicity. On the basic of 6 917 co-samples of soil and rice, 1 489 co-samples of soil and wheat, and 1 816 co-samples of soil and corn seed, the Selenium concentration in selenium-enriched soil was 0.22×10 -6≤w(Se)<3.0×10 -6 for rice producing areas, 0.31×10 -6≤w(Se)<1.0×10 -6 for wheat planting area, and 0.94×10 -6≤w(Se)<4.91×10 -6 for corn planting area. It is of great significance to the scientific utilization of selenium-enriched soil resources and the development of selenium-enriched agricultural products.
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Received: 02 April 2019
Published: 28 November 2019
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参数 | 玉米 | | 小麦 | | 水稻 | 根系土 | 籽实 | 生物富集 系数 | 根系土 | 籽实 | 生物富集 系数 | 根系土 | 籽实 | 生物富集 系数 | 样品数/件 | 1816 | 1816 | 1816 | | 1489 | 1489 | 1489 | | 6917 | 6917 | 6917 | 最小值 | 0.049 | 0.000 | 0.002 | | 0.071 | 0.006 | 0.006 | | 0.008 | 0.001 | 0.002 | 最大值 | 15.175 | 7.421 | 6.255 | | 3.395 | 1.025 | 6.120 | | 6.395 | 3.296 | 7.750 | 平均值 | 0.425 | 0.072 | 0.156 | | 0.340 | 0.099 | 0.284 | | 0.425 | 0.061 | 0.179 | 中位值 | 0.284 | 0.031 | 0.108 | | 0.289 | 0.059 | 0.207 | | 0.370 | 0.050 | 0.139 | 标准离差 | 0.663 | 0.353 | 0.270 | | 0.208 | 0.112 | 0.286 | | 0.302 | 0.068 | 0.221 |
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Selenium concentrations in bulk crops and soils of China
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Co-analysis of Selenium in soils and crops in China
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土壤Se含量分区 | 硒超标籽实 w(Se)≥0.30×10-6 | 富硒籽实 0.04×10-6≤w(Se)<0.30×10-6 | 不富硒籽实 w(Se)<0.04 ×10-6 | 水 稻 | w(Se)≤0.175×10-6 | 样本数/件 比例/% | 4 0.49 | 288 35.42 | 521 64.08 | 0.175×10-6<w(Se)≤0.40×10-6 | 样本数/件 比例/% | 7 0.22 | 2027 65.11 | 1079 34.66 | 0.40×10-6<w(Se)≤3.00×10-6 | 样本数/件 比例/% | 25 0.84 | 2419 81.26 | 533 17.90 | w(Se)>3.00×10-6 | 样本数/件 比例/% | 8 57.14 | 4 28.57 | 2 14.29 | 小 麦 | w(Se)≤0.175×10-6 | 样本数/件 比例/% | 2 1.24 | 39 24.22 | 120 74.53 | 0.175×10-6<w(Se)≤0.40×10-6 | 样本数/件 比例/% | 18 1.87 | 631 65.59 | 313 32.54 | 0.40×10-6<w(Se)≤3.00×10-6 | 样本数/件 比例/% | 71 19.51 | 277 76.10 | 16 4.40 | w(Se)>3.00×10-6 | 样本数/件 比例/% | 1 50.00 | 0 0.00 | 1 50.00 | 玉 米 | w(Se)≤0.175×10-6 | 样本数/件 比例/% | 0 0.00 | 52 15.71 | 279 84.29 | 0.175×10-6<w(Se)≤0.40×10-6 | 样本数/件 比例/% | 1 0.11 | 237 25.76 | 682 74.13 | 0.40×10-6<w(Se)≤3.00×10-6 | 样本数/件 比例/% | 24 4.35 | 318 57.61 | 210 38.04 | w(Se)>3.00×10-6 | 样本数/件 比例/% | 8 61.54 | 5 38.46 | 0 0.00 |
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Selenium enrichment ratio of crops in different soil selenium divisions
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Linear model of Se in crop seeds and root soil in China
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地区 | 粮食品种 | Se含量/10-6 | 引用标准 | 中华人民共和国国家标准 | 稻米 | 0.04~0.30 | 富硒稻谷GB/T 22499-2008 | 中华人民共和国卫生部 | 固体食品 | 0.15 | 预包装食品营养标签通则GB 28050-2011 | 中华人民共和国供销合作行业标准 | 谷物类 | 0.10~0.50 | 富硒农产品GH/T 1135-2017 | 湖北省地方标准 | 大米、玉米、小麦 | 0.20~0.50 | 富有机硒食品硒含量要求DBS 42/ 002-2014 | 江西省地方标准 | 稻米及制品 | 0.07~0.30 | 富硒食品硒含量分类标准DB 36/T566-2009 | 陕西省地方标准 | 粮食加工品 | 0.15~0.30 | 富硒食品与其相关产品硒含量标准DB 61/T556-2012 | 陕西省安康市地方标准 | 成品粮 粮食加工制品 | 0.02~0.30 0.005~0.30 | 富硒食品硒含量分类标准DB 6124.01-2010 | 重庆市地方标准 | 稻谷及制品 玉米及制品 | 0.05~0.30 0.02~0.30 | 富硒农产品DB 50/T524-2013 | 广西省地方标准 | 粮食 | 0.15~0.50 | 富硒农产品硒含量分类要求DB 45/T1061-2014 | 湖南省地方标准 | 固体食品 | 0.15 | 富硒农产品生产技术规程 DB 43/T816-832-2013 | 宁夏回族自治区地方标准 | 水稻、玉米、小麦 | 0.04~0.30 | 宁夏富硒农产品标准(水稻、玉米、小麦与枸杞干果) DB 64/ T1221-2016 |
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Standard for selenium content in selenium-rich foods in China
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作物与根系土硒含量关系模型 | 富硒成品量标准/10-6 | 富硒土壤标准/10-6 | 水稻 Y=0.1015X+0.01753 | 下限 0.04 上限 0.30 | 下限 0.22 上限 2.78 | 小麦 Y=0.4296X-0.0616 | 下限 0.07 上限 0.30 | 下限 0.31 上限 0.84 | 玉米 Y=0.0580X+0.0153 | 下限 0.07 上限 0.30 | 下限 0.94 上限 4.91 |
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Standard value of selenium-enriched soil based on linear model of crop seed and root soil
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