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| 河南汝州市土壤中硒元素分布及影响因素 |
| Distribution and Influencing Factors of Selenium in Soils of Ruzhou City, Henan Province, China |
| 投稿时间：2025-06-26 修订日期：2025-08-15 |
| DOI： |
| 中文关键词: 农业地质 硒元素 富硒土壤 分布特征 影响因素 |
| 英文关键词:Agricultural geology Selenium Selenium-enriched soil Distributional characteristics Influencing factors |
| 基金项目: |
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| 摘要点击次数: 11 |
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| 中文摘要: |
| 汝州市大部分地区属于富硒土壤区,为促进全市传统农业产业的提升发展,合理开发利用优质土地资源,打造富硒农产品品牌。对汝州市开展1：50000富硒土壤详细调查,将1148件表层土壤及38件深层土壤样品的硒含量测定数据进行统计分析,探讨汝州市土壤中硒元素分布情况及受到的影响因素。结果表明：汝州市表层土壤硒含量范围为0.026 ~ 3.030mg/kg,平均值为0.232 mg/kg,深层土壤硒含量范围为0.054 ~ 0.632mg/kg,平均值为0.232 mg/kg,均高于河南省硒含量平均值0.190mg/kg；从空间分布看,汝州市土壤硒元素的空间分布整体呈中部、西北部及南部地区含量高,东部、东北部和西南边缘区域含量低的特点。该地区不同土壤类型中硒元素含量明显不同,水稻土的平均硒含量最高,达到0.399mg/kg；不同土地利用类型的土壤硒含量存在明显差异,旱地的平均硒含量最高,为0.243mg/kg；土壤Se含量与pH呈负相关关系。 |
| 英文摘要: |
| Most of Ruzhou City belongs to selenium-rich soil area, in order to promote the upgrading and development of the city"s traditional agricultural industry, rationally develop and utilize high-quality land resources, and create a brand of selenium-rich agricultural products. To carry out a detailed investigation of 1:50,000 selenium-rich soil in Ruzhou City, the selenium content measurement data of 1148 surface soil and 38 deep soil samples were statistically analyzed to explore the distribution of selenium in the soil of Ruzhou City and the influencing factors. The results showed that the selenium content of surface soil in Ruzhou City ranged from 0.026 to 3.030 mg/kg, with an average value of 0.232 mg/kg, and the selenium content of deep soil ranged from 0.054 to 0.632 mg/kg, with an average value of 0.232 mg/kg, which were higher than that of the average value of selenium content in Henan Province (0.190 mg/kg); in terms of the spatial distribution, the selenium distribution of soil in Ruzhou City showed an overall central, northwestern, and western trend, and the spatial distribution of soil selenium in Ruzhou City showed an overall central and northwestern trend. In terms of spatial distribution, the spatial distribution of soil selenium in Ruzhou City is characterized by high content in the central, northwestern and southern areas, and low content in the eastern, northeastern and southwestern edges. The selenium content of different soil types in the region is obviously different, the average selenium content of rice soil is the highest, reaching 0.399mg/kg; the selenium content of soils of different land-use types is obviously different, and the average selenium content of dryland is the highest, at 0.243mg/kg; the Se content of soils is negatively correlated with pH. |
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