| 东北水稻产区土壤-作物系统锌元素生态地球化学特征 |
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| 引用本文： | 禹惠敏,王冬艳,王兴佳,商屹.东北水稻产区土壤-作物系统锌元素生态地球化学特征[J].世界地质,2022(1). |
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| 作者姓名： | 禹惠敏 王冬艳 王兴佳 商屹 |
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| 作者单位： | 吉林大学地球科学学院 |
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| 基金项目： | 国家自然科学基金项目(42071255)。 |
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| 摘 要： | 以东北主要水稻产区为研究区,以土壤-作物系统锌元素地球化学为研究对象,进行了系统的野外调查和土壤、水稻样品的采集、测试及统计分析。研究结果表明,东北水稻产区土壤表层锌含量介于11.01~94.95 mg/kg之间,平均值为43.97 mg/kg,锌含量总体处于缺乏状态;籽实锌含量介于14.27~36.92 mg/kg之间,平均值为24.70 mg/kg,样品中97.56%的籽实锌含量满足人体需要从谷物摄取到的量,品质优良;水稻籽实锌生物富集系数从高到低依次为草原风沙土、草甸土、盐渍水稻土、黑土、淹育水稻土、水稻土、暗棕壤、草甸白浆土;水稻籽实中锌元素的富集与土壤表层硼、锗、铋、镉、铅、锂、铍等元素含量呈现不同程度的显著负相关。
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| 关 键 词： | 中国东北 土壤 水稻 锌元素 生态地球化学特征 |
Eco-geochemical characteristics of zinc in soil-crop systems in rice producing areas of Northeast China |
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| YU Huimin,WANG Dongyan,WANG Xingjia,SHANG Yi.Eco-geochemical characteristics of zinc in soil-crop systems in rice producing areas of Northeast China[J].World Geology,2022(1). |
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| Authors: | YU Huimin WANG Dongyan WANG Xingjia SHANG Yi |
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| Institution: | (College of Earth Sciences,Jilin University,Changchun 130061,China) |
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| Abstract: | Taking the main rice producing areas in Northeast China as the research area and the geochemistry of zinc in soil-crop systems as the research object,systematic field investigation,collection,testing and statistical analysis of soil and rice samples were carried out.The results show that the zinc contents in the topsoil of rice producing areas in Northeast China range from 11.01 mg/kg to 94.95 mg/kg,with an average of 43.97 mg/kg,which are generally in a state of deficiency.The zinc contents of seeds vary from 14.27 mg/kg to 36.92 mg/kg,with an average of 24.70 mg/kg,97.56%of seeds in the samples contain the amount of zinc that meets the needs of human body from grain and thus are of good quality.The bioconcentration factors of zinc in rice seeds from high to low is grassland sandy soil,meadow soil,saline paddy soil,black soil,flooded paddy soil,paddy soil,dark brown soil and meadow albic soil.The enrichment of zinc by rice seeds show variably negative correlations with the contents of boron,germanium,bismuth,cadmium,lead,lithium,beryllium and other elements in the topsoil. |
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| Keywords: | Northeast China soil rice zinc eco-geochemical characteristics |
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