青海省富硒土壤标准探讨

doi:10.11720/wtyht.2022.1285

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Abstract

The acid-base properties and Se background values of the soil in Qinghai Province were obtained by analyzing the pH and Se content of the soil based on the data derived from the geochemical survey of land quality conducted in Qinghai Province. The Se enrichment models of root soil and crops such as wheat, rapeseed, pea, garlic, and forage were established accordingly. The recommended values of Se-rich soil in Qinghai were calculated by combining the recommended in take of Se in the population with the standard value of Se content in Se-rich agricultural and livestock products in Qinghai Province. It is recommended that the lower limit of Se-rich soil for alkaline soil and neutral and acidic soil in Qinghai Province should be 0.23×10^-6 and 0.25×10^-6, respectively. This study is greatly significant for the formulation of the local standards for Se-rich soil in Qinghai Province and for guiding the development of the selenium industry.

Key words： Se-rich soil alkaline soil local standard selenium standard

Received: 16 May 2021 Published: 21 June 2022

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	Articles by authors
	Qiang MA
	Ya-Feng ZHANG
	Qiang HUANG
	Bing-Yan JI
	Guo-Wen Miao
	Feng-Juan MA
	Ying MA

Cite this article:

Qiang MA,Ya-Feng ZHANG,Qiang HUANG, et al. Exploring the standards of Se-rich soil in Qinghai Province[J]. Geophysical and Geochemical Exploration, 2022, 46(3): 772-780.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2022.1285 OR https://www.wutanyuhuatan.com/EN/Y2022/V46/I3/772

Summary of different regions of standards for selenium-rich soils

Spatial diagram of different scale workspaces in eastern Qinghai

pH distribution and statistics of the proportion of samples of soil

The distribution of pH in soil

Statistical table of characteristic values of soil Se content

The distribution of Se in soil

The distribution of mother-to-earth in eastern Qinghai

Statistical table of morphological eigenvalues of selenium species(n=50)

Linear model of Se in wheat and root soil(n=161)

Linear model of Se in rapeseed and root soil(n=173)

Linear model of Se in pea and root soil(n=88)

Linear model of Se in garlic and root soil(n=35)

Statistical table of Se in forage grass and root soil

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