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

• Geochemistry • Previous Articles     Next Articles

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

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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