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现代地质 ›› 2021, Vol. 35 ›› Issue (04): 923-930.DOI: 10.19657/j.geoscience.1000-8527.2021.04.03

• 地球化学 • 上一篇    下一篇

富硒区土壤养分质量评价:以陕西省紫阳县闹热村为例

于龙龙1(), 吴磊1, 张志敏2, 晁旭2, 冯海艳1(), 杨忠芳1   

  1. 1.中国地质大学(北京) 地球科学与资源学院,北京 100083
    2.陕西省地质调查中心,陕西 西安 710068
  • 收稿日期:2020-09-27 修回日期:2021-03-09 出版日期:2021-08-10 发布日期:2021-09-08
  • 通讯作者: 冯海艳
  • 作者简介:冯海艳,女,副教授,1974年出生,土壤农业化学专业,主要从事环境和生态地球化学研究。Email: haiyan@cugb.edu.cn
    于龙龙,男,硕士研究生,1997年出生,地球化学专业,主要从事环境地球化学研究。Email: 2947357680@qq.com
  • 基金资助:
    陕西省地质调查院公益性地质调查项目(201909)

Evaluation of Soil Nutrient Quality in Selenium-rich Area: A Case Study of Naore Village, Ziyang County, Shaanxi Province

YU Longlong1(), WU Lei1, ZHANG Zhimin2, CAO Xu2, FENG Haiyan1(), YANG Zhongfang1   

  1. 1. School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083, China
    2. Shaanxi Provincial Geological Survey Center, Xi’an,Shaanxi 710068, China
  • Received:2020-09-27 Revised:2021-03-09 Online:2021-08-10 Published:2021-09-08
  • Contact: FENG Haiyan

摘要:

为在典型富硒土壤分布地区科学种植和大力发展绿色富硒农产品,选取陕西省紫阳县闹热村为研究区,进行土壤养分质量评价。共采集138件表层土壤样品,测试分析了氮、磷、钾等植物营养元素以及土壤有机质、pH等16项指标。结果表明:(1)研究区硒资源丰富,表层土壤硒元素含量范围在0.50~25.30 mg/kg之间,平均含量为3.85 mg/kg;(2)研究区表层土壤为中性—弱碱性土壤,其中的大量元素和中量元素整体达到丰富及以上水平,锌、铜等微量元素和土壤有机质较缺乏;(3)研究区表层土壤养分综合等级均达到了三级及以上水平,土壤养分情况整体良好。该研究成果对于推动当地富硒产业经济发展具有重要的意义。

关键词: 养分, 富硒, 土壤, 评价, 陕西紫阳

Abstract:

In order to plant and further develop selenium-rich agricultural products in a scientific way, we investigated the soil nutrient quality evaluation of Naore village in Ziyang County, Shaanxi Province. In our research, a total of 138 surface soil samples were collected, and 16 indexes of plant nutrients such as nitrogen, phosphorus and potassium, soil organic matter and pH were determined. The research results show that: (1)the study area is rich in selenium resources and the content of selenium in the surface soil ranges from 0.50 to 25.30 mg/kg, and the average content is 3.85 mg/kg; (2) the surface soil is neutral to weakly alkaline soil, in which macro and moderate elements are abundant or above on the whole, while trace elements such as zinc and copper and soil organic matter are deficient; (3) the comprehensive nutrient level of the surface soil reached level 3 or above, and the overall nutrient status of the soil was qualified. This study is of great significance for promoting the economic development of local selenium-rich industries.

Key words: nutrient, Se-enriched, soil, evaluation, Ziyang, Shaanxi

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