宝清县东部土壤硒含量特征及其与土壤性质的关系

doi:10.11720/wtyht.2019.0037

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Abstract

In order to study the soil selenium content in the eastern part of Baoqing County and its relationship with soil properties, the authors collected 17 470 soil samples in the depth of 0~20 cm from the main agricultural areas in eastern Baoqing County according to the density of 4 points/km ². Physical and chemical indicators such as selenium content, organic carbon and pH were analyzed. The results show that the selenium content in the topsoil is between 0.01×10 ^-6 and 1.17×10 ^-6, the average content is 0.326×10 ^-6, 73.53% of the soil is selenium-sufficient, 21.14% of the soil is selenium-abundant, and 4.56% of soil is of potential selenium-deficiency. Selenium-deficient soil only accounts for 0.77%, and there is no selenium poisoning area. The average content of selenium in different soil parent materials is arranged in decreasing order of alluvial deposits>alluvial deposits>granite>sedimentary rocks>basic-neutral volcanic rocks; the average content of selenium in different soil types in arranged in decreasing order of albic soil>meadow soil>black soil>marshy soil>dark brown soil>paddy soil; the average content of selenium in different land use is arranged in decreasing order of irrigated farmland>dry farmland>grassland>construction land>unused land>forest land. Correlation analysis shows that soil organic carbon (TOC) and pH are the main factors affecting the selenium content in the surface soil of the study area.

Key words： soil selenium soil parent material soil type organic carbon pH Baoqing County

Received: 08 January 2019 Published: 15 August 2019

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Corresponding Authors: Li ZHANG E-mail: 11741785@qq.com

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	Yue-Ping WANG
	Li ZHANG
	Yu-Jun CUI
	Shi-Jia LYU

Cite this article:

Yue-Ping WANG,Li ZHANG,Yu-Jun CUI, et al. Characteristics of selenium content in soil of eastern Baoqing County and its relationship with soil properties[J]. Geophysical and Geochemical Exploration, 2019, 43(4): 904-911.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2019.0037 OR https://www.wutanyuhuatan.com/EN/Y2019/V43/I4/904

Geological sketch map of eastern Baoqing County

Basic physicochemical properties of soil (n=17 470)

Limit value and statistical result of selenium content of soil in research area

Distribution characteristics of selenium content in soil in eastern Baoqing County

Characteristics of selenium content in different soil-forming material

Characteristics of selenium content in different soil types

Characteristics of selenium content in different land use patterns

Relations between pH and Se content in soil

Relations between TOC and Se content in soil

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